From personal_submersibles at psubs.org Tue Oct 1 04:37:32 2019 From: personal_submersibles at psubs.org (graham bayliss via Personal_Submersibles) Date: Tue, 1 Oct 2019 09:37:32 +0100 Subject: [PSUBS-MAILIST] new annealing oven In-Reply-To: References: <369443381.129776.1569541967423.ref@mail.yahoo.com> <369443381.129776.1569541967423@mail.yahoo.com> <1029307572.647679.1569632171473@mail.yahoo.com> <3E2B6E80-4A7A-4D10-AEAB-861A8E4719DF@yahoo.com> Message-ID: <002701d57833$79101520$6b303f60$@net> Hi I used this company to fabricate my view ports for Casper 2 gave them my specifications everything I asked for and all certification would recommend them. Graham Bayliss From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of David Colombo via Personal_Submersibles Sent: 30 September 2019 18:22 To: Personal Submersibles General Discussion Subject: Re: [PSUBS-MAILIST] new annealing oven Hi Hank the fabricator is: http://www.stanleyplastics.co.uk/ They are supposed to get back to me on tuesday. David On Mon, Sep 30, 2019, 7:42 AM James Frankland via Personal_Submersibles wrote: Whats the UK company David? regards James On Sat, 28 Sep 2019 at 05:51, David Colombo via Personal_Submersibles wrote: Alan, I've been referred to A company in the UK. I will let you know as i start this process. David On Fri, Sep 27, 2019, 8:47 PM Alan via Personal_Submersibles wrote: David, I would appreciate being kept up to date with this problem as I will need to go down this track in the future. Hank is half way there if his oven is big enough to fit a press. Emile is an option if freight isn't too expensive. Alan On 28/09/2019, at 12:56 PM, hank pronk via Personal_Submersibles wrote: David, That really sucks, what now? I thought the price was very low. Hank On Friday, September 27, 2019, 4:51:22 PM MDT, David Colombo via Personal_Submersibles wrote: Hank, Is it big enough for 30" od domes? I just got word that i might not be able to get them from Will, as they are having some issue with dome thickness and the cost of the mold. Best Regards, David Colombo 804 College Ave Santa Rosa, CA. 95404 (707) 536-1424 www.SeaQuestor.com On Thu, Sep 26, 2019 at 8:42 PM Alan via Personal_Submersibles wrote: Hank, I am shocked, I thought you were a Canadian version of the Amish! When you haven't got acrylic in the oven you could do a really good job of a rotisserie pig. Alan On 27/09/2019, at 11:52 AM, hank pronk via Personal_Submersibles wrote: Hi All, Today I handed over the items to my electronics guy for my new oven control system. We start test runs next week. I am shocked how fancy this is going to be. The oven will reside in my house but will be monitored at his house via wifi. In fact, if the temperature deviates it will send us an email. It will log the temperatures during the entire anneal cycle. To me this is all amazing. To Jon, its another day at the office lol Hank _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue Oct 1 12:28:15 2019 From: personal_submersibles at psubs.org (Alec Smyth via Personal_Submersibles) Date: Tue, 1 Oct 2019 12:28:15 -0400 Subject: [PSUBS-MAILIST] Shackleton testing Message-ID: Hi everyone, Just a quick update on Shackleton test dives we made last week. Many thanks to Brian Hughes, Dan Lance, Steve McQueen, and Mark Ragan, who all drove big distances and set aside three days in the middle of the week. An earlier trailering issue has thankfully been resolved. Make sure you have sufficient tongue weight!!! The longitudinal location of the sub in my case produces about 300 lbs of tongue weight per inch that you move the sub forward, so it's absolutely key to locate the sub accurately. The earlier problem was that the trailer went into harmonic oscillation and decided it liked to travel next to the tow vehicle rather than behind it. Solution: Increased tongue weight to 580 lbs, reinforced the tongue to deal with that, and added a damper between trailer and tow vehicle. Here is the damper: https://www.campingworld.com/curt-manufacturing-curt-17200-sway-control-kit-91408.html?gclid=EAIaIQobChMIzZySh9vx5AIVD2yGCh1lOQXZEAQYAiABEgIZ3fD_BwE I added buoyancy foam bolt-on flotation for operating in fresh water with a crew of two, which is the maximum payload/minimum buoyancy scenario. It worked perfectly, and is cheaper than syntactic foam. The sub happens to be the right shape for a material that comes in sheets. In the pics, these are the flat white slabs on the side of the MBTs. The material is R-3315, described in this article: https://sea-technology.com/feature-article-low-density-polyurethane-foam-for-subsea-buoyancy-systems Diving with the mushroom valves is sure different, and decidedly easier. In a K boat, you flood MBTs somewhat tentatively, intermittently opening and closing one or the other valve to keep the boat level. I've abandoned that practice in Shackleton, and just leave both MBT valves open until under. That only takes seconds, so there's no concern about getting out of trim because there isn't time to - she stays flat. The sub dives so fast that flooding MBT puts her in vertical oscillation. Lets say you dive in perfect trim, just a few pounds positive. The sub will descend until the CT is 7 feet underwater, come up and break the surface, then go down again but not as far, bob up again and break the surface, and finally stay there. Initially we were looking to dial in the ballast and this was a little confusing, because the first impression upon venting is that the boat is heavy. However, once ballasted there is no need to bounce up and down when you dive. If you add down thrust while flooding MBT, she goes straight down. The system of using trawl floats to adjust for different crew weights worked beautifully. When changing crews, you just lift a trapdoor in the deck and add or remove floats. They are located under the front half of the deck, since that is above the passenger and thus aligned with the weight variability you are adjusting for. I'll never use VBT again, this is simpler and works really well. Stability was also really good. Several people can walk around the deck, and you can go to any edge of the deck without inducing much heel at all. After diving for a while, if the crew wanted to switch positions we surfaced, both got out on deck, and got back in again in reverse order. The only thing that was fidgety, although it still did its job, was the pressure compensation regulator. I have a differential pressure gauge in the sub, which allows me to see how the compensation pressure compares to ambient. I set it at +4psi but this sometimes (other times not) went to zero at depth. On surfacing it seemed to have trouble venting and climbed to +9. Cliff uses the same exact regulator with no problem, so I might just have a dud. It is an industrial regulator, but I think I might trade it out for a SCUBA 2nd stage because that would have a far larger vent valve. A surfacing blow consumes about 300psi. That does not completely fill the MBTs, I could blow far more, but it is sufficient to get out and walk around. So a set of tanks is good for about 10 dives and I will plan on 8. Shackleton has two battery pods with 6 batteries each. We dived all day on one bank and it's charge indicator only went from 10 to 8 bars. So I'm not sure how accurate or proportional that instrument is, but it said we had only used about 10 percent of battery capacity in a full day. At last, I've a compass that works and we were able to follow headings submerged with no problem. It's on the deck, about a foot above the main cylinder and two feet in front of the CT. You just look out the window to read it. I tried running the thrusters hard but did not observe any effect of their current on the compass. In Snoopy my compass would spin. We tested the emergency release float. It worked fine, and the nice thing is that the release can be stopped when the float reaches the surface, to avoid trailing a super long line. But someone said there is a mechanism that allows you to wind it back in from the sub, and that would be even better! Freeboard came out to design, 24 inches. Even trim. We only went to 25 feet, and next up will be a depth test - most likely in the spring. Best, Alec -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue Oct 1 13:31:34 2019 From: personal_submersibles at psubs.org (Cliff Redus via Personal_Submersibles) Date: Tue, 1 Oct 2019 17:31:34 +0000 (UTC) Subject: [PSUBS-MAILIST] Shackleton testing In-Reply-To: References: Message-ID: <157852802.2128306.1569951094745@mail.yahoo.com> Alex, great report on mods to Shackleton.? It sounds like the mods you made to both the trailer and MBT system worked. The discussion on the fast acting MBT mushroom vent valves was interesting, particularly the part about the vertical oscillation.? My guess is another way to null out the oscillation would be to open the MBT vents for a specific amount of time so that you were shooting for flooding 80% of the MBT volume, close the MBT for a short time then open them again to finish the flood.? I bet if you experimented with this you would find a set of time constants that would generate a fairly fast but smooth flood without oscillation.? As you say, it is not a big deal as you can null out with vertical thrusters. On the air pressure compensation issue.? On the R300, I have gone over to the dark side and switch to oil compensation on all my thrusters.? Yes air compensation with the pressure reducing regulator has worked fine for years but at the Flathead Lake Expedition, I had issues with the the aft thrusters partially flooding.? It could have been that the pressure reducing regulator needed servicing.? The primary reason I switched is that I just don't like using up my HP air with this task.? For shallow dives it is not big deal but for deep dives to 200-300 ft air consumption is significant.? I am using WD-40 for the pressure compensation and the small plastic accorfdian bottles you sent me for expansion.? I put a strobe light on the thrusters to measure rpm of the Minn-Kota 101s with both air and oil compensation.? There is about a 5% reduction in shaft speed under no load conditions out of the water.? I did not detect a significant change in current again under no load conditions.? Next step is to take the R300 to a local lake to test the "dark side" pressure compensation for the thrusters. Back to your test.? How was the underwater maneuverability and the view through that magnificent bow viewport? Cliff On Tuesday, October 1, 2019, 11:29:37 AM CDT, Alec Smyth via Personal_Submersibles wrote: Hi everyone, Just a quick update on Shackleton test dives we made last week. Many thanks?to Brian Hughes, Dan Lance, Steve McQueen, and Mark Ragan, who all drove big distances and set aside three days in the middle of the week.? An earlier trailering issue has thankfully been resolved. Make sure you have sufficient tongue weight!!! The longitudinal location of the sub in my case produces about 300 lbs of tongue weight per inch that you move the sub forward, so it's absolutely key to locate the sub accurately. The earlier problem was that the trailer went into harmonic oscillation and decided it liked to travel next to the tow vehicle rather than behind it. Solution: Increased tongue weight to 580 lbs, reinforced the tongue to deal with that, and added a damper between trailer and tow vehicle. Here is the damper:?https://www.campingworld.com/curt-manufacturing-curt-17200-sway-control-kit-91408.html?gclid=EAIaIQobChMIzZySh9vx5AIVD2yGCh1lOQXZEAQYAiABEgIZ3fD_BwE I added buoyancy foam bolt-on flotation for operating in fresh water with a crew of two, which is the maximum payload/minimum buoyancy scenario. It worked perfectly, and is cheaper than syntactic foam. The sub happens to be the right shape for a material that comes in sheets. In the pics, these are the flat white slabs on the side of the MBTs. The material is R-3315, described in this article:?https://sea-technology.com/feature-article-low-density-polyurethane-foam-for-subsea-buoyancy-systems Diving with the mushroom valves is sure different, and decidedly easier. In a K boat, you flood MBTs somewhat tentatively, intermittently opening and closing one or the other valve to keep the boat level. I've abandoned that practice in Shackleton, and just leave both MBT valves open until under. That only takes seconds, so there's no concern about getting out of trim because there isn't time to - she stays flat. The sub dives so fast that flooding MBT puts her in vertical oscillation. Lets say you dive in perfect trim, just a few pounds positive. The sub will descend until the CT is 7 feet underwater, come up and break the surface, then go down again but not as far, bob up again and break the surface, and finally stay there. Initially we were looking to dial in the ballast and this was a little confusing, because the first impression upon venting is that the boat is heavy. However, once ballasted there is no need to bounce up and down when you dive. If you add down thrust while flooding MBT, she goes straight down.? The system of using trawl floats to adjust for different crew weights worked beautifully. When changing crews, you just lift a trapdoor in the deck and add or remove floats. They are located under the front half of the deck, since that is above the passenger and thus aligned with the weight variability you are adjusting for. I'll never use VBT again, this is simpler and works really well. Stability was also really good. Several people can walk around the deck, and you can go to any edge of the deck without inducing much heel at all. After diving for a while, if the crew wanted to switch positions we surfaced, both got out on deck, and got back in again in reverse order.? The only thing that was fidgety, although it still did its job, was the pressure compensation regulator. I have a differential pressure gauge in the sub, which allows me to see how the compensation pressure compares to ambient. I set it at?+4psi but this sometimes (other times not) went to zero at depth. On surfacing it seemed to have trouble venting and climbed to?+9. Cliff uses the same exact regulator with no problem, so I might just have a dud. It is an industrial regulator, but I think I might trade it out for a SCUBA 2nd stage because that would have a far larger vent valve.? A surfacing blow consumes about 300psi. That does not completely fill the MBTs, I could blow far more, but it is sufficient to get out and walk around. So a set of tanks is good for about 10 dives and I will plan on 8.? Shackleton has two battery pods with 6 batteries each. We dived all day on one bank and it's charge indicator only went from 10 to 8 bars. So I'm not sure how accurate or proportional that instrument is, but it said we had only used about 10 percent of battery capacity in a full day.? At last, I've a compass that works and we were able to follow headings submerged with no problem. It's on the deck, about a foot above the main cylinder and two feet in front of the CT. You just look out the window to read it. I tried running the thrusters hard but did not observe any effect of their current on the compass. In Snoopy my compass would spin.? We tested the emergency release float. It worked fine, and the nice thing is that the release can be stopped when the float reaches the surface, to avoid trailing a super long line. But someone said there is a mechanism that allows you to wind it back in from the sub, and that would be even better! Freeboard came out to design, 24 inches. Even trim.?? We only went to 25 feet, and next up will be a depth test - most likely in the spring.? Best,Alec_______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue Oct 1 13:33:30 2019 From: personal_submersibles at psubs.org (irox via Personal_Submersibles) Date: Tue, 1 Oct 2019 10:33:30 -0700 (GMT-07:00) Subject: [PSUBS-MAILIST] Shackleton testing Message-ID: <1179935239.6011.1569951210391@wamui-bison.atl.sa.earthlink.net> An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue Oct 1 13:57:54 2019 From: personal_submersibles at psubs.org (Antoine Delafargue via Personal_Submersibles) Date: Tue, 1 Oct 2019 19:57:54 +0200 Subject: [PSUBS-MAILIST] Shackleton testing In-Reply-To: <1179935239.6011.1569951210391@wamui-bison.atl.sa.earthlink.net> References: <1179935239.6011.1569951210391@wamui-bison.atl.sa.earthlink.net> Message-ID: Love to hear you happy with all the mods! Regarding trailers: On top of having good tongue weight i am always careful with driving speed, below 100kph. i feel more safe in my sub deep down than on the road... Regards, Antoine Le mar. 1 oct. 2019 ? 19:34, irox via Personal_Submersibles < personal_submersibles at psubs.org> a ?crit : > Congrats on the successful test! Very exciting to see it's all coming > together. Would love to see any pics/videos you took. > > Cheers! > Ian. > > > -----Original Message----- > From: Alec Smyth via Personal_Submersibles > Sent: Oct 1, 2019 9:28 AM > To: Personal Submersibles General Discussion > Subject: [PSUBS-MAILIST] Shackleton testing > > Hi everyone, > > Just a quick update on Shackleton test dives we made last week. Many > thanks to Brian Hughes, Dan Lance, Steve McQueen, and Mark Ragan, who all > drove big distances and set aside three days in the middle of the week. > > An earlier trailering issue has thankfully been resolved. Make sure you > have sufficient tongue weight!!! The longitudinal location of the sub in my > case produces about 300 lbs of tongue weight per inch that you move the sub > forward, so it's absolutely key to locate the sub accurately. The earlier > problem was that the trailer went into harmonic oscillation and decided it > liked to travel next to the tow vehicle rather than behind it. Solution: > Increased tongue weight to 580 lbs, reinforced the tongue to deal with > that, and added a damper between trailer and tow vehicle. Here is the > damper: > https://www.campingworld.com/curt-manufacturing-curt-17200-sway-control-kit-91408.html?gclid=EAIaIQobChMIzZySh9vx5AIVD2yGCh1lOQXZEAQYAiABEgIZ3fD_BwE > > I added buoyancy foam bolt-on flotation for operating in fresh water with > a crew of two, which is the maximum payload/minimum buoyancy scenario. It > worked perfectly, and is cheaper than syntactic foam. The sub happens to be > the right shape for a material that comes in sheets. In the pics, these are > the flat white slabs on the side of the MBTs. The material is R-3315, > described in this article: > https://sea-technology.com/feature-article-low-density-polyurethane-foam-for-subsea-buoyancy-systems > > Diving with the mushroom valves is sure different, and decidedly easier. > In a K boat, you flood MBTs somewhat tentatively, intermittently opening > and closing one or the other valve to keep the boat level. I've abandoned > that practice in Shackleton, and just leave both MBT valves open until > under. That only takes seconds, so there's no concern about getting out of > trim because there isn't time to - she stays flat. > > The sub dives so fast that flooding MBT puts her in vertical oscillation. > Lets say you dive in perfect trim, just a few pounds positive. The sub will > descend until the CT is 7 feet underwater, come up and break the surface, > then go down again but not as far, bob up again and break the surface, and > finally stay there. Initially we were looking to dial in the ballast and > this was a little confusing, because the first impression upon venting is > that the boat is heavy. However, once ballasted there is no need to bounce > up and down when you dive. If you add down thrust while flooding MBT, she > goes straight down. > > The system of using trawl floats to adjust for different crew weights > worked beautifully. When changing crews, you just lift a trapdoor in the > deck and add or remove floats. They are located under the front half of the > deck, since that is above the passenger and thus aligned with the weight > variability you are adjusting for. I'll never use VBT again, this is > simpler and works really well. > > Stability was also really good. Several people can walk around the deck, > and you can go to any edge of the deck without inducing much heel at all. > After diving for a while, if the crew wanted to switch positions we > surfaced, both got out on deck, and got back in again in reverse order. > > The only thing that was fidgety, although it still did its job, was the > pressure compensation regulator. I have a differential pressure gauge in > the sub, which allows me to see how the compensation pressure compares to > ambient. I set it at +4psi but this sometimes (other times not) went to > zero at depth. On surfacing it seemed to have trouble venting and climbed > to +9. Cliff uses the same exact regulator with no problem, so I might just > have a dud. It is an industrial regulator, but I think I might trade it out > for a SCUBA 2nd stage because that would have a far larger vent valve. > > A surfacing blow consumes about 300psi. That does not completely fill the > MBTs, I could blow far more, but it is sufficient to get out and walk > around. So a set of tanks is good for about 10 dives and I will plan on 8. > > Shackleton has two battery pods with 6 batteries each. We dived all day on > one bank and it's charge indicator only went from 10 to 8 bars. So I'm not > sure how accurate or proportional that instrument is, but it said we had > only used about 10 percent of battery capacity in a full day. > > At last, I've a compass that works and we were able to follow headings > submerged with no problem. It's on the deck, about a foot above the main > cylinder and two feet in front of the CT. You just look out the window to > read it. I tried running the thrusters hard but did not observe any effect > of their current on the compass. In Snoopy my compass would spin. > > We tested the emergency release float. It worked fine, and the nice thing > is that the release can be stopped when the float reaches the surface, to > avoid trailing a super long line. But someone said there is a mechanism > that allows you to wind it back in from the sub, and that would be even > better! > > Freeboard came out to design, 24 inches. Even trim. > > We only went to 25 feet, and next up will be a depth test - most likely in > the spring. > > Best, > Alec > > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue Oct 1 22:10:46 2019 From: personal_submersibles at psubs.org (Alan via Personal_Submersibles) Date: Wed, 2 Oct 2019 15:10:46 +1300 Subject: [PSUBS-MAILIST] Shackleton testing In-Reply-To: <157852802.2128306.1569951094745@mail.yahoo.com> References: <157852802.2128306.1569951094745@mail.yahoo.com> Message-ID: Alex, Cliff, thanks for the report Alex, I hadn't thought about the oscillation from flooding the ballasts too quickly. As for the compensating regulator, Cliff I am about to try it out on my thruster on an inflatable boat. I am having an air over oil system. Just bought a 18 cuft pony bottle for it. There is silicone oil in the thruster housing & in the line leading to the compensating regulator. So very little air is required to compensate, & if oil leaks out it is replaced by air & indicated by the oil height in the line. Alex, as for the pressure differential in the regulator; I am not sure what operating range you chose for that regulator. Did you go for the lowest range? I think they have a piston which could stick a bit in that low 4 psi range, hence your zero pressure. The relieving part of the regulator is set by the size of its spring. You could put a weaker spring in if you want the pressure relief on ascending to be closer to your set pressure, however you run the risk of it free flowing. In commercial spring pressurised compensators they get a variance in pressure larger than what you are experiencing, but this is over time due to the spring extending as the oil level goes down. Alan > On 2/10/2019, at 6:31 AM, Cliff Redus via Personal_Submersibles wrote: > > Alex, great report on mods to Shackleton. It sounds like the mods you made to both the trailer and MBT system worked. The discussion on the fast acting MBT mushroom vent valves was interesting, particularly the part about the vertical oscillation. My guess is another way to null out the oscillation would be to open the MBT vents for a specific amount of time so that you were shooting for flooding 80% of the MBT volume, close the MBT for a short time then open them again to finish the flood. I bet if you experimented with this you would find a set of time constants that would generate a fairly fast but smooth flood without oscillation. As you say, it is not a big deal as you can null out with vertical thrusters. > > On the air pressure compensation issue. On the R300, I have gone over to the dark side and switch to oil compensation on all my thrusters. Yes air compensation with the pressure reducing regulator has worked fine for years but at the Flathead Lake Expedition, I had issues with the the aft thrusters partially flooding. It could have been that the pressure reducing regulator needed servicing. The primary reason I switched is that I just don't like using up my HP air with this task. For shallow dives it is not big deal but for deep dives to 200-300 ft air consumption is significant. I am using WD-40 for the pressure compensation and the small plastic accorfdian bottles you sent me for expansion. I put a strobe light on the thrusters to measure rpm of the Minn-Kota 101s with both air and oil compensation. There is about a 5% reduction in shaft speed under no load conditions out of the water. I did not detect a significant change in current again under no load conditions. Next step is to take the R300 to a local lake to test the "dark side" pressure compensation for the thrusters. > > Back to your test. How was the underwater maneuverability and the view through that magnificent bow viewport? > > Cliff > > On Tuesday, October 1, 2019, 11:29:37 AM CDT, Alec Smyth via Personal_Submersibles wrote: > > > Hi everyone, > > Just a quick update on Shackleton test dives we made last week. Many thanks to Brian Hughes, Dan Lance, Steve McQueen, and Mark Ragan, who all drove big distances and set aside three days in the middle of the week. > > An earlier trailering issue has thankfully been resolved. Make sure you have sufficient tongue weight!!! The longitudinal location of the sub in my case produces about 300 lbs of tongue weight per inch that you move the sub forward, so it's absolutely key to locate the sub accurately. The earlier problem was that the trailer went into harmonic oscillation and decided it liked to travel next to the tow vehicle rather than behind it. Solution: Increased tongue weight to 580 lbs, reinforced the tongue to deal with that, and added a damper between trailer and tow vehicle. Here is the damper: https://www.campingworld.com/curt-manufacturing-curt-17200-sway-control-kit-91408.html?gclid=EAIaIQobChMIzZySh9vx5AIVD2yGCh1lOQXZEAQYAiABEgIZ3fD_BwE > > I added buoyancy foam bolt-on flotation for operating in fresh water with a crew of two, which is the maximum payload/minimum buoyancy scenario. It worked perfectly, and is cheaper than syntactic foam. The sub happens to be the right shape for a material that comes in sheets. In the pics, these are the flat white slabs on the side of the MBTs. The material is R-3315, described in this article: https://sea-technology.com/feature-article-low-density-polyurethane-foam-for-subsea-buoyancy-systems > > Diving with the mushroom valves is sure different, and decidedly easier. In a K boat, you flood MBTs somewhat tentatively, intermittently opening and closing one or the other valve to keep the boat level. I've abandoned that practice in Shackleton, and just leave both MBT valves open until under. That only takes seconds, so there's no concern about getting out of trim because there isn't time to - she stays flat. > > The sub dives so fast that flooding MBT puts her in vertical oscillation. Lets say you dive in perfect trim, just a few pounds positive. The sub will descend until the CT is 7 feet underwater, come up and break the surface, then go down again but not as far, bob up again and break the surface, and finally stay there. Initially we were looking to dial in the ballast and this was a little confusing, because the first impression upon venting is that the boat is heavy. However, once ballasted there is no need to bounce up and down when you dive. If you add down thrust while flooding MBT, she goes straight down. > > The system of using trawl floats to adjust for different crew weights worked beautifully. When changing crews, you just lift a trapdoor in the deck and add or remove floats. They are located under the front half of the deck, since that is above the passenger and thus aligned with the weight variability you are adjusting for. I'll never use VBT again, this is simpler and works really well. > > Stability was also really good. Several people can walk around the deck, and you can go to any edge of the deck without inducing much heel at all. After diving for a while, if the crew wanted to switch positions we surfaced, both got out on deck, and got back in again in reverse order. > > The only thing that was fidgety, although it still did its job, was the pressure compensation regulator. I have a differential pressure gauge in the sub, which allows me to see how the compensation pressure compares to ambient. I set it at +4psi but this sometimes (other times not) went to zero at depth. On surfacing it seemed to have trouble venting and climbed to +9. Cliff uses the same exact regulator with no problem, so I might just have a dud. It is an industrial regulator, but I think I might trade it out for a SCUBA 2nd stage because that would have a far larger vent valve. > > A surfacing blow consumes about 300psi. That does not completely fill the MBTs, I could blow far more, but it is sufficient to get out and walk around. So a set of tanks is good for about 10 dives and I will plan on 8. > > Shackleton has two battery pods with 6 batteries each. We dived all day on one bank and it's charge indicator only went from 10 to 8 bars. So I'm not sure how accurate or proportional that instrument is, but it said we had only used about 10 percent of battery capacity in a full day. > > At last, I've a compass that works and we were able to follow headings submerged with no problem. It's on the deck, about a foot above the main cylinder and two feet in front of the CT. You just look out the window to read it. I tried running the thrusters hard but did not observe any effect of their current on the compass. In Snoopy my compass would spin. > > We tested the emergency release float. It worked fine, and the nice thing is that the release can be stopped when the float reaches the surface, to avoid trailing a super long line. But someone said there is a mechanism that allows you to wind it back in from the sub, and that would be even better! > > Freeboard came out to design, 24 inches. Even trim. > > We only went to 25 feet, and next up will be a depth test - most likely in the spring. > > Best, > Alec > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue Oct 1 22:12:24 2019 From: personal_submersibles at psubs.org (Alan via Personal_Submersibles) Date: Wed, 2 Oct 2019 15:12:24 +1300 Subject: [PSUBS-MAILIST] new annealing oven In-Reply-To: <002701d57833$79101520$6b303f60$@net> References: <369443381.129776.1569541967423.ref@mail.yahoo.com> <369443381.129776.1569541967423@mail.yahoo.com> <1029307572.647679.1569632171473@mail.yahoo.com> <3E2B6E80-4A7A-4D10-AEAB-861A8E4719DF@yahoo.com> <002701d57833$79101520$6b303f60$@net> Message-ID: <79DFFEDD-A9FE-4826-BA17-7DDD10C6BA83@yahoo.com> Hi Graham, The link didn't come through with your email. Cheers Alan > On 1/10/2019, at 9:37 PM, graham bayliss via Personal_Submersibles wrote: > > Hi > > I used this company to fabricate my view ports for Casper 2 gave them my specifications everything I asked for and all certification would recommend them. > > Graham Bayliss > > From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of David Colombo via Personal_Submersibles > Sent: 30 September 2019 18:22 > To: Personal Submersibles General Discussion > Subject: Re: [PSUBS-MAILIST] new annealing oven > > Hi Hank the fabricator is: > > http://www.stanleyplastics.co.uk/ > > They are supposed to get back to me on tuesday. > David > > On Mon, Sep 30, 2019, 7:42 AM James Frankland via Personal_Submersibles wrote: > Whats the UK company David? > regards > James > > On Sat, 28 Sep 2019 at 05:51, David Colombo via Personal_Submersibles wrote: > Alan, I've been referred to A company in the UK. I will let you know as i start this process. > David > > > On Fri, Sep 27, 2019, 8:47 PM Alan via Personal_Submersibles wrote: > David, > I would appreciate being kept up to date with this problem as I > will need to go down this track in the future. > Hank is half way there if his oven is big enough to fit a press. > Emile is an option if freight isn't too expensive. > Alan > > On 28/09/2019, at 12:56 PM, hank pronk via Personal_Submersibles wrote: > > David, > That really sucks, what now? I thought the price was very low. > Hank > > On Friday, September 27, 2019, 4:51:22 PM MDT, David Colombo via Personal_Submersibles wrote: > > > Hank, > Is it big enough for 30" od domes? I just got word that i might not be able to get them from Will, as they are having some issue with dome thickness and the cost of the mold. > > Best Regards, > David Colombo > > 804 College Ave > Santa Rosa, CA. 95404 > (707) 536-1424 > www.SeaQuestor.com > > > > On Thu, Sep 26, 2019 at 8:42 PM Alan via Personal_Submersibles wrote: > Hank, > I am shocked, I thought you were a Canadian version of the Amish! > When you haven't got acrylic in the oven you could do a really good job > of a rotisserie pig. > Alan > > > > On 27/09/2019, at 11:52 AM, hank pronk via Personal_Submersibles wrote: > > Hi All, > Today I handed over the items to my electronics guy for my new oven control system. We start test runs next week. I am shocked how fancy this is going to be. The oven will reside in my house but will be monitored at his house via wifi. In fact, if the temperature deviates it will send us an email. It will log the temperatures during the entire anneal cycle. To me this is all amazing. To Jon, its another day at the office lol > Hank > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue Oct 1 22:46:13 2019 From: personal_submersibles at psubs.org (Alan via Personal_Submersibles) Date: Wed, 2 Oct 2019 15:46:13 +1300 Subject: [PSUBS-MAILIST] new annealing oven In-Reply-To: <79DFFEDD-A9FE-4826-BA17-7DDD10C6BA83@yahoo.com> References: <369443381.129776.1569541967423.ref@mail.yahoo.com> <369443381.129776.1569541967423@mail.yahoo.com> <1029307572.647679.1569632171473@mail.yahoo.com> <3E2B6E80-4A7A-4D10-AEAB-861A8E4719DF@yahoo.com> <002701d57833$79101520$6b303f60$@net> <79DFFEDD-A9FE-4826-BA17-7DDD10C6BA83@yahoo.com> Message-ID: <1269B0D7-C400-4BE8-B184-8195E67E5250@yahoo.com> Graham, I was reading wrong, you were obviously referring to Stanley Plastics. Any details on the size of your dome & cost? Were they certified? Alan > On 2/10/2019, at 3:12 PM, Alan via Personal_Submersibles wrote: > > Hi Graham, > The link didn't come through with your email. > Cheers Alan > >> On 1/10/2019, at 9:37 PM, graham bayliss via Personal_Submersibles wrote: >> >> Hi >> >> I used this company to fabricate my view ports for Casper 2 gave them my specifications everything I asked for and all certification would recommend them. >> >> Graham Bayliss >> >> From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of David Colombo via Personal_Submersibles >> Sent: 30 September 2019 18:22 >> To: Personal Submersibles General Discussion >> Subject: Re: [PSUBS-MAILIST] new annealing oven >> >> Hi Hank the fabricator is: >> >> http://www.stanleyplastics.co.uk/ >> >> They are supposed to get back to me on tuesday. >> David >> >> On Mon, Sep 30, 2019, 7:42 AM James Frankland via Personal_Submersibles wrote: >> Whats the UK company David? >> regards >> James >> >> On Sat, 28 Sep 2019 at 05:51, David Colombo via Personal_Submersibles wrote: >> Alan, I've been referred to A company in the UK. I will let you know as i start this process. >> David >> >> >> On Fri, Sep 27, 2019, 8:47 PM Alan via Personal_Submersibles wrote: >> David, >> I would appreciate being kept up to date with this problem as I >> will need to go down this track in the future. >> Hank is half way there if his oven is big enough to fit a press. >> Emile is an option if freight isn't too expensive. >> Alan >> >> On 28/09/2019, at 12:56 PM, hank pronk via Personal_Submersibles wrote: >> >> David, >> That really sucks, what now? I thought the price was very low. >> Hank >> >> On Friday, September 27, 2019, 4:51:22 PM MDT, David Colombo via Personal_Submersibles wrote: >> >> >> Hank, >> Is it big enough for 30" od domes? I just got word that i might not be able to get them from Will, as they are having some issue with dome thickness and the cost of the mold. >> >> Best Regards, >> David Colombo >> >> 804 College Ave >> Santa Rosa, CA. 95404 >> (707) 536-1424 >> www.SeaQuestor.com >> >> >> >> On Thu, Sep 26, 2019 at 8:42 PM Alan via Personal_Submersibles wrote: >> Hank, >> I am shocked, I thought you were a Canadian version of the Amish! >> When you haven't got acrylic in the oven you could do a really good job >> of a rotisserie pig. >> Alan >> >> >> >> On 27/09/2019, at 11:52 AM, hank pronk via Personal_Submersibles wrote: >> >> Hi All, >> Today I handed over the items to my electronics guy for my new oven control system. We start test runs next week. I am shocked how fancy this is going to be. The oven will reside in my house but will be monitored at his house via wifi. In fact, if the temperature deviates it will send us an email. It will log the temperatures during the entire anneal cycle. To me this is all amazing. To Jon, its another day at the office lol >> Hank >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Wed Oct 2 06:18:58 2019 From: personal_submersibles at psubs.org (James Frankland via Personal_Submersibles) Date: Wed, 2 Oct 2019 11:18:58 +0100 Subject: [PSUBS-MAILIST] Shackleton testing In-Reply-To: References: <157852802.2128306.1569951094745@mail.yahoo.com> Message-ID: Alec, Great report. Sounds like really succesful dives. Do you have any pics? Interested to see the pressure regulator. Regards James On Wed, 2 Oct 2019 at 03:11, Alan via Personal_Submersibles < personal_submersibles at psubs.org> wrote: > Alex, Cliff, > thanks for the report Alex, I hadn't thought about the oscillation from > flooding the ballasts too quickly. > As for the compensating regulator, Cliff I am about to try it out on my > thruster on an inflatable boat. I am having an air over oil system. Just > bought > a 18 cuft pony bottle for it. > There is silicone oil in the thruster housing & in the line leading to the > compensating > regulator. So very little air is required to compensate, & if oil leaks > out it is > replaced by air & indicated by the oil height in the line. > Alex, as for the pressure differential in the regulator; I am not sure > what operating > range you chose for that regulator. Did you go for the lowest range? > I think they have a piston which could stick a bit in that low 4 psi > range, hence your > zero pressure. The relieving part of the regulator is set by the size of > its spring. > You could put a weaker spring in if you want the pressure relief on > ascending > to be closer to your set pressure, however you run the risk of it free > flowing. > In commercial spring pressurised compensators they get a variance in > pressure > larger than what you are experiencing, but this is over time due to the > spring > extending as the oil level goes down. > Alan > > > > On 2/10/2019, at 6:31 AM, Cliff Redus via Personal_Submersibles < > personal_submersibles at psubs.org> wrote: > > Alex, great report on mods to Shackleton. It sounds like the mods you > made to both the trailer and MBT system worked. The discussion on the fast > acting MBT mushroom vent valves was interesting, particularly the part > about the vertical oscillation. My guess is another way to null out the > oscillation would be to open the MBT vents for a specific amount of time so > that you were shooting for flooding 80% of the MBT volume, close the MBT > for a short time then open them again to finish the flood. I bet if you > experimented with this you would find a set of time constants that would > generate a fairly fast but smooth flood without oscillation. As you say, > it is not a big deal as you can null out with vertical thrusters. > > On the air pressure compensation issue. On the R300, I have gone over to > the dark side and switch to oil compensation on all my thrusters. Yes air > compensation with the pressure reducing regulator has worked fine for years > but at the Flathead Lake Expedition, I had issues with the the aft > thrusters partially flooding. It could have been that the pressure > reducing regulator needed servicing. The primary reason I switched is that > I just don't like using up my HP air with this task. For shallow dives it > is not big deal but for deep dives to 200-300 ft air consumption is > significant. I am using WD-40 for the pressure compensation and the small > plastic accorfdian bottles you sent me for expansion. I put a strobe light > on the thrusters to measure rpm of the Minn-Kota 101s with both air and oil > compensation. There is about a 5% reduction in shaft speed under no load > conditions out of the water. I did not detect a significant change in > current again under no load conditions. Next step is to take the R300 to a > local lake to test the "dark side" pressure compensation for the thrusters. > > Back to your test. How was the underwater maneuverability and the view > through that magnificent bow viewport? > > Cliff > > On Tuesday, October 1, 2019, 11:29:37 AM CDT, Alec Smyth via > Personal_Submersibles wrote: > > > Hi everyone, > > Just a quick update on Shackleton test dives we made last week. Many > thanks to Brian Hughes, Dan Lance, Steve McQueen, and Mark Ragan, who all > drove big distances and set aside three days in the middle of the week. > > An earlier trailering issue has thankfully been resolved. Make sure you > have sufficient tongue weight!!! The longitudinal location of the sub in my > case produces about 300 lbs of tongue weight per inch that you move the sub > forward, so it's absolutely key to locate the sub accurately. The earlier > problem was that the trailer went into harmonic oscillation and decided it > liked to travel next to the tow vehicle rather than behind it. Solution: > Increased tongue weight to 580 lbs, reinforced the tongue to deal with > that, and added a damper between trailer and tow vehicle. Here is the > damper: > https://www.campingworld.com/curt-manufacturing-curt-17200-sway-control-kit-91408.html?gclid=EAIaIQobChMIzZySh9vx5AIVD2yGCh1lOQXZEAQYAiABEgIZ3fD_BwE > > I added buoyancy foam bolt-on flotation for operating in fresh water with > a crew of two, which is the maximum payload/minimum buoyancy scenario. It > worked perfectly, and is cheaper than syntactic foam. The sub happens to be > the right shape for a material that comes in sheets. In the pics, these are > the flat white slabs on the side of the MBTs. The material is R-3315, > described in this article: > https://sea-technology.com/feature-article-low-density-polyurethane-foam-for-subsea-buoyancy-systems > > Diving with the mushroom valves is sure different, and decidedly easier. > In a K boat, you flood MBTs somewhat tentatively, intermittently opening > and closing one or the other valve to keep the boat level. I've abandoned > that practice in Shackleton, and just leave both MBT valves open until > under. That only takes seconds, so there's no concern about getting out of > trim because there isn't time to - she stays flat. > > The sub dives so fast that flooding MBT puts her in vertical oscillation. > Lets say you dive in perfect trim, just a few pounds positive. The sub will > descend until the CT is 7 feet underwater, come up and break the surface, > then go down again but not as far, bob up again and break the surface, and > finally stay there. Initially we were looking to dial in the ballast and > this was a little confusing, because the first impression upon venting is > that the boat is heavy. However, once ballasted there is no need to bounce > up and down when you dive. If you add down thrust while flooding MBT, she > goes straight down. > > The system of using trawl floats to adjust for different crew weights > worked beautifully. When changing crews, you just lift a trapdoor in the > deck and add or remove floats. They are located under the front half of the > deck, since that is above the passenger and thus aligned with the weight > variability you are adjusting for. I'll never use VBT again, this is > simpler and works really well. > > Stability was also really good. Several people can walk around the deck, > and you can go to any edge of the deck without inducing much heel at all. > After diving for a while, if the crew wanted to switch positions we > surfaced, both got out on deck, and got back in again in reverse order. > > The only thing that was fidgety, although it still did its job, was the > pressure compensation regulator. I have a differential pressure gauge in > the sub, which allows me to see how the compensation pressure compares to > ambient. I set it at +4psi but this sometimes (other times not) went to > zero at depth. On surfacing it seemed to have trouble venting and climbed > to +9. Cliff uses the same exact regulator with no problem, so I might just > have a dud. It is an industrial regulator, but I think I might trade it out > for a SCUBA 2nd stage because that would have a far larger vent valve. > > A surfacing blow consumes about 300psi. That does not completely fill the > MBTs, I could blow far more, but it is sufficient to get out and walk > around. So a set of tanks is good for about 10 dives and I will plan on 8. > > Shackleton has two battery pods with 6 batteries each. We dived all day on > one bank and it's charge indicator only went from 10 to 8 bars. So I'm not > sure how accurate or proportional that instrument is, but it said we had > only used about 10 percent of battery capacity in a full day. > > At last, I've a compass that works and we were able to follow headings > submerged with no problem. It's on the deck, about a foot above the main > cylinder and two feet in front of the CT. You just look out the window to > read it. I tried running the thrusters hard but did not observe any effect > of their current on the compass. In Snoopy my compass would spin. > > We tested the emergency release float. It worked fine, and the nice thing > is that the release can be stopped when the float reaches the surface, to > avoid trailing a super long line. But someone said there is a mechanism > that allows you to wind it back in from the sub, and that would be even > better! > > Freeboard came out to design, 24 inches. Even trim. > > We only went to 25 feet, and next up will be a depth test - most likely in > the spring. > > Best, > Alec > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Wed Oct 2 06:54:39 2019 From: personal_submersibles at psubs.org (graham bayliss via Personal_Submersibles) Date: Wed, 2 Oct 2019 11:54:39 +0100 Subject: [PSUBS-MAILIST] new annealing oven In-Reply-To: <79DFFEDD-A9FE-4826-BA17-7DDD10C6BA83@yahoo.com> References: <369443381.129776.1569541967423.ref@mail.yahoo.com> <369443381.129776.1569541967423@mail.yahoo.com> <1029307572.647679.1569632171473@mail.yahoo.com> <3E2B6E80-4A7A-4D10-AEAB-861A8E4719DF@yahoo.com> <002701d57833$79101520$6b303f60$@net> <79DFFEDD-A9FE-4826-BA17-7DDD10C6BA83@yahoo.com> Message-ID: <006901d5790f$ca524fc0$5ef6ef40$@net> Hi Alan The company I used was www.stanleyplastics.co.uk they are very good and quick. Graham Bayliss From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of Alan via Personal_Submersibles Sent: 02 October 2019 03:12 To: Personal Submersibles General Discussion Subject: Re: [PSUBS-MAILIST] new annealing oven Hi Graham, The link didn't come through with your email. Cheers Alan On 1/10/2019, at 9:37 PM, graham bayliss via Personal_Submersibles wrote: Hi I used this company to fabricate my view ports for Casper 2 gave them my specifications everything I asked for and all certification would recommend them. Graham Bayliss From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of David Colombo via Personal_Submersibles Sent: 30 September 2019 18:22 To: Personal Submersibles General Discussion Subject: Re: [PSUBS-MAILIST] new annealing oven Hi Hank the fabricator is: http://www.stanleyplastics.co.uk/ They are supposed to get back to me on tuesday. David On Mon, Sep 30, 2019, 7:42 AM James Frankland via Personal_Submersibles wrote: Whats the UK company David? regards James On Sat, 28 Sep 2019 at 05:51, David Colombo via Personal_Submersibles wrote: Alan, I've been referred to A company in the UK. I will let you know as i start this process. David On Fri, Sep 27, 2019, 8:47 PM Alan via Personal_Submersibles wrote: David, I would appreciate being kept up to date with this problem as I will need to go down this track in the future. Hank is half way there if his oven is big enough to fit a press. Emile is an option if freight isn't too expensive. Alan On 28/09/2019, at 12:56 PM, hank pronk via Personal_Submersibles wrote: David, That really sucks, what now? I thought the price was very low. Hank On Friday, September 27, 2019, 4:51:22 PM MDT, David Colombo via Personal_Submersibles wrote: Hank, Is it big enough for 30" od domes? I just got word that i might not be able to get them from Will, as they are having some issue with dome thickness and the cost of the mold. Best Regards, David Colombo 804 College Ave Santa Rosa, CA. 95404 (707) 536-1424 www.SeaQuestor.com On Thu, Sep 26, 2019 at 8:42 PM Alan via Personal_Submersibles wrote: Hank, I am shocked, I thought you were a Canadian version of the Amish! When you haven't got acrylic in the oven you could do a really good job of a rotisserie pig. Alan On 27/09/2019, at 11:52 AM, hank pronk via Personal_Submersibles wrote: Hi All, Today I handed over the items to my electronics guy for my new oven control system. We start test runs next week. I am shocked how fancy this is going to be. The oven will reside in my house but will be monitored at his house via wifi. In fact, if the temperature deviates it will send us an email. It will log the temperatures during the entire anneal cycle. To me this is all amazing. To Jon, its another day at the office lol Hank _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Wed Oct 2 07:04:35 2019 From: personal_submersibles at psubs.org (graham bayliss via Personal_Submersibles) Date: Wed, 2 Oct 2019 12:04:35 +0100 Subject: [PSUBS-MAILIST] new annealing oven In-Reply-To: <1269B0D7-C400-4BE8-B184-8195E67E5250@yahoo.com> References: <369443381.129776.1569541967423.ref@mail.yahoo.com> <369443381.129776.1569541967423@mail.yahoo.com> <1029307572.647679.1569632171473@mail.yahoo.com> <3E2B6E80-4A7A-4D10-AEAB-861A8E4719DF@yahoo.com> <002701d57833$79101520$6b303f60$@net> <79DFFEDD-A9FE-4826-BA17-7DDD10C6BA83@yahoo.com> <1269B0D7-C400-4BE8-B184-8195E67E5250@yahoo.com> Message-ID: <007401d57911$2dd49890$897dc9b0$@net> Hi Alan I had them make my view ports as per drawing all were certified to what I requested -18c to +66c all view ports were individually tested and certified document is 5 pages in detail the company works with professional sub builders and maintains tourist subs as well as professional subs. they can make any style of view port . Graham Bayliss From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of Alan via Personal_Submersibles Sent: 02 October 2019 03:46 To: Personal Submersibles General Discussion Subject: Re: [PSUBS-MAILIST] new annealing oven Graham, I was reading wrong, you were obviously referring to Stanley Plastics. Any details on the size of your dome & cost? Were they certified? Alan On 2/10/2019, at 3:12 PM, Alan via Personal_Submersibles wrote: Hi Graham, The link didn't come through with your email. Cheers Alan On 1/10/2019, at 9:37 PM, graham bayliss via Personal_Submersibles wrote: Hi I used this company to fabricate my view ports for Casper 2 gave them my specifications everything I asked for and all certification would recommend them. Graham Bayliss From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of David Colombo via Personal_Submersibles Sent: 30 September 2019 18:22 To: Personal Submersibles General Discussion Subject: Re: [PSUBS-MAILIST] new annealing oven Hi Hank the fabricator is: http://www.stanleyplastics.co.uk/ They are supposed to get back to me on tuesday. David On Mon, Sep 30, 2019, 7:42 AM James Frankland via Personal_Submersibles wrote: Whats the UK company David? regards James On Sat, 28 Sep 2019 at 05:51, David Colombo via Personal_Submersibles wrote: Alan, I've been referred to A company in the UK. I will let you know as i start this process. David On Fri, Sep 27, 2019, 8:47 PM Alan via Personal_Submersibles wrote: David, I would appreciate being kept up to date with this problem as I will need to go down this track in the future. Hank is half way there if his oven is big enough to fit a press. Emile is an option if freight isn't too expensive. Alan On 28/09/2019, at 12:56 PM, hank pronk via Personal_Submersibles wrote: David, That really sucks, what now? I thought the price was very low. Hank On Friday, September 27, 2019, 4:51:22 PM MDT, David Colombo via Personal_Submersibles wrote: Hank, Is it big enough for 30" od domes? I just got word that i might not be able to get them from Will, as they are having some issue with dome thickness and the cost of the mold. Best Regards, David Colombo Image removed by sender. 804 College Ave Santa Rosa, CA. 95404 (707) 536-1424 www.SeaQuestor.com On Thu, Sep 26, 2019 at 8:42 PM Alan via Personal_Submersibles wrote: Hank, I am shocked, I thought you were a Canadian version of the Amish! When you haven't got acrylic in the oven you could do a really good job of a rotisserie pig. Alan On 27/09/2019, at 11:52 AM, hank pronk via Personal_Submersibles wrote: Hi All, Today I handed over the items to my electronics guy for my new oven control system. We start test runs next week. I am shocked how fancy this is going to be. The oven will reside in my house but will be monitored at his house via wifi. In fact, if the temperature deviates it will send us an email. It will log the temperatures during the entire anneal cycle. To me this is all amazing. To Jon, its another day at the office lol Hank _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image001.jpg Type: image/jpeg Size: 594 bytes Desc: not available URL: From personal_submersibles at psubs.org Wed Oct 2 07:52:31 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Wed, 2 Oct 2019 11:52:31 +0000 (UTC) Subject: [PSUBS-MAILIST] Shackleton testing In-Reply-To: References: <157852802.2128306.1569951094745@mail.yahoo.com> Message-ID: <1334287322.2505138.1570017151067@mail.yahoo.com> Alec,Congratulations! ?I know you had some hurtles to overcome with that small diameter hull. ?I love the deck and stability. ?The fast valves must be nice. ?It sure looks sharp sitting at the surface and the three big floats add to it. ?The sub is inspirational and shows ?what can be done by a home builder in a garage.Hank On Wednesday, October 2, 2019, 4:19:28 AM MDT, James Frankland via Personal_Submersibles wrote: Alec, Great report.? Sounds like really succesful dives.Do you have any pics?? ?Interested to see the pressure regulator.?? RegardsJames On Wed, 2 Oct 2019 at 03:11, Alan via Personal_Submersibles wrote: Alex, Cliff,thanks for the report Alex, I hadn't thought about the oscillation fromflooding the ballasts too quickly.As for the compensating regulator, Cliff I am about to try it out on mythruster on an inflatable boat. I am having an air over oil system. Just boughta 18 cuft pony bottle for it.There is silicone oil in the thruster housing & in the line leading to the compensatingregulator. So very little air is required to compensate, & if oil leaks out it isreplaced by air & indicated by the oil height in the line.Alex, as for the pressure differential in the regulator; I am not sure what operatingrange you chose for that regulator. Did you go for the lowest range?I think they have a piston which could stick a bit in that low 4 psi range, hence yourzero pressure. The relieving part of the regulator is set by the size of its spring.You could put a weaker spring in if you want the pressure relief on ascendingto be closer to your set pressure, however you run the risk of it free flowing.In commercial spring pressurised compensators they get a variance in pressurelarger than what you are experiencing, but this is over time due to the spring?extending as the oil level goes down.?Alan On 2/10/2019, at 6:31 AM, Cliff Redus via Personal_Submersibles wrote: Alex, great report on mods to Shackleton.? It sounds like the mods you made to both the trailer and MBT system worked. The discussion on the fast acting MBT mushroom vent valves was interesting, particularly the part about the vertical oscillation.? My guess is another way to null out the oscillation would be to open the MBT vents for a specific amount of time so that you were shooting for flooding 80% of the MBT volume, close the MBT for a short time then open them again to finish the flood.? I bet if you experimented with this you would find a set of time constants that would generate a fairly fast but smooth flood without oscillation.? As you say, it is not a big deal as you can null out with vertical thrusters. On the air pressure compensation issue.? On the R300, I have gone over to the dark side and switch to oil compensation on all my thrusters.? Yes air compensation with the pressure reducing regulator has worked fine for years but at the Flathead Lake Expedition, I had issues with the the aft thrusters partially flooding.? It could have been that the pressure reducing regulator needed servicing.? The primary reason I switched is that I just don't like using up my HP air with this task.? For shallow dives it is not big deal but for deep dives to 200-300 ft air consumption is significant.? I am using WD-40 for the pressure compensation and the small plastic accorfdian bottles you sent me for expansion.? I put a strobe light on the thrusters to measure rpm of the Minn-Kota 101s with both air and oil compensation.? There is about a 5% reduction in shaft speed under no load conditions out of the water.? I did not detect a significant change in current again under no load conditions.? Next step is to take the R300 to a local lake to test the "dark side" pressure compensation for the thrusters. Back to your test.? How was the underwater maneuverability and the view through that magnificent bow viewport? Cliff On Tuesday, October 1, 2019, 11:29:37 AM CDT, Alec Smyth via Personal_Submersibles wrote: Hi everyone, Just a quick update on Shackleton test dives we made last week. Many thanks?to Brian Hughes, Dan Lance, Steve McQueen, and Mark Ragan, who all drove big distances and set aside three days in the middle of the week.? An earlier trailering issue has thankfully been resolved. Make sure you have sufficient tongue weight!!! The longitudinal location of the sub in my case produces about 300 lbs of tongue weight per inch that you move the sub forward, so it's absolutely key to locate the sub accurately. The earlier problem was that the trailer went into harmonic oscillation and decided it liked to travel next to the tow vehicle rather than behind it. Solution: Increased tongue weight to 580 lbs, reinforced the tongue to deal with that, and added a damper between trailer and tow vehicle. Here is the damper:?https://www.campingworld.com/curt-manufacturing-curt-17200-sway-control-kit-91408.html?gclid=EAIaIQobChMIzZySh9vx5AIVD2yGCh1lOQXZEAQYAiABEgIZ3fD_BwE I added buoyancy foam bolt-on flotation for operating in fresh water with a crew of two, which is the maximum payload/minimum buoyancy scenario. It worked perfectly, and is cheaper than syntactic foam. The sub happens to be the right shape for a material that comes in sheets. In the pics, these are the flat white slabs on the side of the MBTs. The material is R-3315, described in this article:?https://sea-technology.com/feature-article-low-density-polyurethane-foam-for-subsea-buoyancy-systems Diving with the mushroom valves is sure different, and decidedly easier. In a K boat, you flood MBTs somewhat tentatively, intermittently opening and closing one or the other valve to keep the boat level. I've abandoned that practice in Shackleton, and just leave both MBT valves open until under. That only takes seconds, so there's no concern about getting out of trim because there isn't time to - she stays flat. The sub dives so fast that flooding MBT puts her in vertical oscillation. Lets say you dive in perfect trim, just a few pounds positive. The sub will descend until the CT is 7 feet underwater, come up and break the surface, then go down again but not as far, bob up again and break the surface, and finally stay there. Initially we were looking to dial in the ballast and this was a little confusing, because the first impression upon venting is that the boat is heavy. However, once ballasted there is no need to bounce up and down when you dive. If you add down thrust while flooding MBT, she goes straight down.? The system of using trawl floats to adjust for different crew weights worked beautifully. When changing crews, you just lift a trapdoor in the deck and add or remove floats. They are located under the front half of the deck, since that is above the passenger and thus aligned with the weight variability you are adjusting for. I'll never use VBT again, this is simpler and works really well. Stability was also really good. Several people can walk around the deck, and you can go to any edge of the deck without inducing much heel at all. After diving for a while, if the crew wanted to switch positions we surfaced, both got out on deck, and got back in again in reverse order.? The only thing that was fidgety, although it still did its job, was the pressure compensation regulator. I have a differential pressure gauge in the sub, which allows me to see how the compensation pressure compares to ambient. I set it at?+4psi but this sometimes (other times not) went to zero at depth. On surfacing it seemed to have trouble venting and climbed to?+9. Cliff uses the same exact regulator with no problem, so I might just have a dud. It is an industrial regulator, but I think I might trade it out for a SCUBA 2nd stage because that would have a far larger vent valve.? A surfacing blow consumes about 300psi. That does not completely fill the MBTs, I could blow far more, but it is sufficient to get out and walk around. So a set of tanks is good for about 10 dives and I will plan on 8.? Shackleton has two battery pods with 6 batteries each. We dived all day on one bank and it's charge indicator only went from 10 to 8 bars. So I'm not sure how accurate or proportional that instrument is, but it said we had only used about 10 percent of battery capacity in a full day.? At last, I've a compass that works and we were able to follow headings submerged with no problem. It's on the deck, about a foot above the main cylinder and two feet in front of the CT. You just look out the window to read it. I tried running the thrusters hard but did not observe any effect of their current on the compass. In Snoopy my compass would spin.? We tested the emergency release float. It worked fine, and the nice thing is that the release can be stopped when the float reaches the surface, to avoid trailing a super long line. But someone said there is a mechanism that allows you to wind it back in from the sub, and that would be even better! Freeboard came out to design, 24 inches. Even trim.?? We only went to 25 feet, and next up will be a depth test - most likely in the spring.? Best,Alec_______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Wed Oct 2 08:56:49 2019 From: personal_submersibles at psubs.org (Brian Hughes via Personal_Submersibles) Date: Wed, 2 Oct 2019 12:56:49 +0000 Subject: [PSUBS-MAILIST] Shackleton testing Message-ID: James, Find Alec on Facebook and friend him. He posts there. I'm also there and on Instagram as MondoSubmerso. I posted a number of pics from the dive. Brian Hughes, Maryland Get Outlook for Android -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Wed Oct 2 10:40:52 2019 From: personal_submersibles at psubs.org (James Frankland via Personal_Submersibles) Date: Wed, 2 Oct 2019 15:40:52 +0100 Subject: [PSUBS-MAILIST] Shackleton testing In-Reply-To: References: Message-ID: Just looked them up Brian. Thanks. Looks like a brilliant day and a fantastic looking boat. Look at the stability with Alec standing around on the deck! Super Jealous... On Wed, 2 Oct 2019 at 13:57, Brian Hughes via Personal_Submersibles < personal_submersibles at psubs.org> wrote: > James, > > Find Alec on Facebook and friend him. He posts there. I'm also there and > on Instagram as MondoSubmerso. I posted a number of pics from the dive. > > Brian Hughes, Maryland > > Get Outlook for Android > > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Wed Oct 2 11:42:17 2019 From: personal_submersibles at psubs.org (Alec Smyth via Personal_Submersibles) Date: Wed, 2 Oct 2019 11:42:17 -0400 Subject: [PSUBS-MAILIST] Shackleton testing In-Reply-To: References: Message-ID: Hey thanks everyone for the kind words. There is a size limit of 500K for attachments on the email list, so I shrunk one photo and will attach it to this. The big constraint of this sub is that the CT nozzle is *really* small. Fine for me, I can jump in and out with no problem. Its a personal submersible, made to measure. But I'd say maybe this is a pant size 38 sub (I'm a 34 going on 36). :) Alec On Wed, Oct 2, 2019 at 10:42 AM James Frankland via Personal_Submersibles < personal_submersibles at psubs.org> wrote: > Just looked them up Brian. Thanks. > > Looks like a brilliant day and a fantastic looking boat. Look at the > stability with Alec standing around on the deck! Super Jealous... > > On Wed, 2 Oct 2019 at 13:57, Brian Hughes via Personal_Submersibles < > personal_submersibles at psubs.org> wrote: > >> James, >> >> Find Alec on Facebook and friend him. He posts there. I'm also there and >> on Instagram as MondoSubmerso. I posted a number of pics from the dive. >> >> Brian Hughes, Maryland >> >> Get Outlook for Android >> >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: IMG_0702_small.jpg Type: image/jpeg Size: 176114 bytes Desc: not available URL: From personal_submersibles at psubs.org Wed Oct 2 11:55:09 2019 From: personal_submersibles at psubs.org (Alec Smyth via Personal_Submersibles) Date: Wed, 2 Oct 2019 11:55:09 -0400 Subject: [PSUBS-MAILIST] Shackleton testing In-Reply-To: References: Message-ID: One more... not as nice an angle of the boat, but I asked Steve to snap this one with me standing on the edge of the deck so I could use the photo to verify the calculated metacentric height. Haven't done that yet, but you can see the angle is pretty minimal. Thanks, Alec On Wed, Oct 2, 2019 at 11:42 AM Alec Smyth wrote: > Hey thanks everyone for the kind words. There is a size limit of 500K for > attachments on the email list, so I shrunk one photo and will attach it to > this. The big constraint of this sub is that the CT nozzle is *really* > small. Fine for me, I can jump in and out with no problem. Its a personal > submersible, made to measure. But I'd say maybe this is a pant size 38 sub > (I'm a 34 going on 36). > > :) > > Alec > > On Wed, Oct 2, 2019 at 10:42 AM James Frankland via Personal_Submersibles < > personal_submersibles at psubs.org> wrote: > >> Just looked them up Brian. Thanks. >> >> Looks like a brilliant day and a fantastic looking boat. Look at the >> stability with Alec standing around on the deck! Super Jealous... >> >> On Wed, 2 Oct 2019 at 13:57, Brian Hughes via Personal_Submersibles < >> personal_submersibles at psubs.org> wrote: >> >>> James, >>> >>> Find Alec on Facebook and friend him. He posts there. I'm also there and >>> on Instagram as MondoSubmerso. I posted a number of pics from the dive. >>> >>> Brian Hughes, Maryland >>> >>> Get Outlook for Android >>> >>> _______________________________________________ >>> Personal_Submersibles mailing list >>> Personal_Submersibles at psubs.org >>> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >>> >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> > -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: transverse stability.jpg Type: image/jpeg Size: 234178 bytes Desc: not available URL: From personal_submersibles at psubs.org Wed Oct 2 15:41:09 2019 From: personal_submersibles at psubs.org (Alan via Personal_Submersibles) Date: Thu, 3 Oct 2019 08:41:09 +1300 Subject: [PSUBS-MAILIST] new annealing oven In-Reply-To: <006901d5790f$ca524fc0$5ef6ef40$@net> References: <369443381.129776.1569541967423.ref@mail.yahoo.com> <369443381.129776.1569541967423@mail.yahoo.com> <1029307572.647679.1569632171473@mail.yahoo.com> <3E2B6E80-4A7A-4D10-AEAB-861A8E4719DF@yahoo.com> <002701d57833$79101520$6b303f60$@net> <79DFFEDD-A9FE-4826-BA17-7DDD10C6BA83@yahoo.com> <006901d5790f$ca524fc0$5ef6ef40$@net> Message-ID: <2B737A2D-27EE-4F7B-84A8-CB8762F03948@yahoo.com> Thanks Graham, I had a quote years ago from either Stanley or Blanson for a dome & it was very expensive. I ended up getting it blown locally. Alan > On 2/10/2019, at 11:54 PM, graham bayliss via Personal_Submersibles wrote: > > Hi Alan > > The company I used was www.stanleyplastics.co.uk they are very good and quick. > > Graham Bayliss > From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of Alan via Personal_Submersibles > Sent: 02 October 2019 03:12 > To: Personal Submersibles General Discussion > Subject: Re: [PSUBS-MAILIST] new annealing oven > > Hi Graham, > The link didn't come through with your email. > Cheers Alan > > On 1/10/2019, at 9:37 PM, graham bayliss via Personal_Submersibles wrote: > > Hi > > I used this company to fabricate my view ports for Casper 2 gave them my specifications everything I asked for and all certification would recommend them. > > Graham Bayliss > > From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of David Colombo via Personal_Submersibles > Sent: 30 September 2019 18:22 > To: Personal Submersibles General Discussion > Subject: Re: [PSUBS-MAILIST] new annealing oven > > Hi Hank the fabricator is: > > http://www.stanleyplastics.co.uk/ > > They are supposed to get back to me on tuesday. > David > > On Mon, Sep 30, 2019, 7:42 AM James Frankland via Personal_Submersibles wrote: > Whats the UK company David? > regards > James > > On Sat, 28 Sep 2019 at 05:51, David Colombo via Personal_Submersibles wrote: > Alan, I've been referred to A company in the UK. I will let you know as i start this process. > David > > > On Fri, Sep 27, 2019, 8:47 PM Alan via Personal_Submersibles wrote: > David, > I would appreciate being kept up to date with this problem as I > will need to go down this track in the future. > Hank is half way there if his oven is big enough to fit a press. > Emile is an option if freight isn't too expensive. > Alan > > On 28/09/2019, at 12:56 PM, hank pronk via Personal_Submersibles wrote: > > David, > That really sucks, what now? I thought the price was very low. > Hank > > On Friday, September 27, 2019, 4:51:22 PM MDT, David Colombo via Personal_Submersibles wrote: > > > Hank, > Is it big enough for 30" od domes? I just got word that i might not be able to get them from Will, as they are having some issue with dome thickness and the cost of the mold. > > Best Regards, > David Colombo > > 804 College Ave > Santa Rosa, CA. 95404 > (707) 536-1424 > www.SeaQuestor.com > > > > On Thu, Sep 26, 2019 at 8:42 PM Alan via Personal_Submersibles wrote: > Hank, > I am shocked, I thought you were a Canadian version of the Amish! > When you haven't got acrylic in the oven you could do a really good job > of a rotisserie pig. > Alan > > > > On 27/09/2019, at 11:52 AM, hank pronk via Personal_Submersibles wrote: > > Hi All, > Today I handed over the items to my electronics guy for my new oven control system. We start test runs next week. I am shocked how fancy this is going to be. The oven will reside in my house but will be monitored at his house via wifi. In fact, if the temperature deviates it will send us an email. It will log the temperatures during the entire anneal cycle. To me this is all amazing. To Jon, its another day at the office lol > Hank > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Thu Oct 3 18:01:28 2019 From: personal_submersibles at psubs.org (Alec Smyth via Personal_Submersibles) Date: Thu, 3 Oct 2019 18:01:28 -0400 Subject: [PSUBS-MAILIST] Sub for sale Message-ID: There is a diesel-electric sub for sale in Sweden: https://psauction.se/item/view/603124/ubat-harren-sf3081?fbclid=IwAR2vzjR0WAydZa7yDNlELVATgFImu-FhGsJX6hbJ2FDIt_SkpA4tWsFaEBU What really caught my attention is the "manual" for this sub, which is downloadable from the listing page. It is not only a great manual, it has a ton of photos of construction details that are very, very nicely done. I don't know the seller, but hats off to them. Best, Alec -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Thu Oct 3 19:56:11 2019 From: personal_submersibles at psubs.org (irox via Personal_Submersibles) Date: Thu, 3 Oct 2019 16:56:11 -0700 (GMT-07:00) Subject: [PSUBS-MAILIST] Sub for sale Message-ID: <1771535892.12286.1570146971209@wamui-cinderella.atl.sa.earthlink.net> An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Thu Oct 3 21:52:04 2019 From: personal_submersibles at psubs.org (via Personal_Submersibles) Date: Thu, 3 Oct 2019 20:52:04 -0500 Subject: [PSUBS-MAILIST] Sub for sale In-Reply-To: References: Message-ID: Yes this is perfect. Sent from my iPad > On Oct 3, 2019, at 5:01 PM, Alec Smyth via Personal_Submersibles wrote: > > There is a diesel-electric sub for sale in Sweden: https://psauction.se/item/view/603124/ubat-harren-sf3081?fbclid=IwAR2vzjR0WAydZa7yDNlELVATgFImu-FhGsJX6hbJ2FDIt_SkpA4tWsFaEBU > > What really caught my attention is the "manual" for this sub, which is downloadable from the listing page. It is not only a great manual, it has a ton of photos of construction details that are very, very nicely done. I don't know the seller, but hats off to them. > > Best, > Alec > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Thu Oct 3 22:38:48 2019 From: personal_submersibles at psubs.org (River Dolfi via Personal_Submersibles) Date: Thu, 3 Oct 2019 19:38:48 -0700 Subject: [PSUBS-MAILIST] Sub for sale In-Reply-To: References: Message-ID: Alec, I saw the listing for that sub, but somehow missed the manual. One of the construction details I noticed is the use of a Golden Motor 5kW BLDC motor for the main drive. I have one, and it is a great motor. Incredibly torque, even at very low operating speeds. Available in a variety of voltages and sizes. Made in China, with a Canadian distributor. I ordered my motor with some custom modification directly from the factory in China and had great customer service and no issues whatsoever. If anybody is looking for a very large brushless motor, I would point them in this direction. Thanks, -River J. Dolfi -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Fri Oct 4 03:39:05 2019 From: personal_submersibles at psubs.org (via Personal_Submersibles) Date: Fri, 4 Oct 2019 09:39:05 +0200 Subject: [PSUBS-MAILIST] Sub for sale In-Reply-To: <1771535892.12286.1570146971209@wamui-cinderella.atl.sa.earthlink.net> References: <1771535892.12286.1570146971209@wamui-cinderella.atl.sa.earthlink.net> Message-ID: No, Is a real guy and well build sub. BR, Emile Van: Personal_Submersibles Namens irox via Personal_Submersibles Verzonden: vrijdag 4 oktober 2019 01:56 Aan: Personal Submersibles General Discussion ; Personal Submersibles General Discussion Onderwerp: Re: [PSUBS-MAILIST] Sub for sale WOW!!! 15990 EUR ?!?!?!?!? Is this a scam maybe? How many submarines is too many? Asking for a friend.... -----Original Message----- From: Alec Smyth via Personal_Submersibles Sent: Oct 3, 2019 3:01 PM To: Personal Submersibles General Discussion Subject: [PSUBS-MAILIST] Sub for sale There is a diesel-electric sub for sale in Sweden: https://psauction.se/item/view/603124/ubat-harren-sf3081?fbclid=IwAR2vzjR0WAydZa7yDNlELVATgFImu-FhGsJX6hbJ2FDIt_SkpA4tWsFaEBU What really caught my attention is the "manual" for this sub, which is downloadable from the listing page. It is not only a great manual, it has a ton of photos of construction details that are very, very nicely done. I don't know the seller, but hats off to them. Best, Alec -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Fri Oct 4 18:21:13 2019 From: personal_submersibles at psubs.org (David Colombo via Personal_Submersibles) Date: Fri, 4 Oct 2019 15:21:13 -0700 Subject: [PSUBS-MAILIST] Shackleton testing In-Reply-To: <1334287322.2505138.1570017151067@mail.yahoo.com> References: <157852802.2128306.1569951094745@mail.yahoo.com> <1334287322.2505138.1570017151067@mail.yahoo.com> Message-ID: Hi Alec, she looks great! With the new deck shape, did you have a chance to tow it and see how she tracks? On your float release i am building a retrieving motor to coil in the line. I'll let you know how it works. David On Wed, Oct 2, 2019, 4:53 AM hank pronk via Personal_Submersibles < personal_submersibles at psubs.org> wrote: > Alec, > Congratulations! I know you had some hurtles to overcome with that small > diameter hull. I love the deck and stability. The fast valves must be > nice. It sure looks sharp sitting at the surface and the three big floats > add to it. The sub is inspirational and shows what can be done by a home > builder in a garage. > Hank > > On Wednesday, October 2, 2019, 4:19:28 AM MDT, James Frankland via > Personal_Submersibles wrote: > > > Alec, > > Great report. Sounds like really succesful dives. > Do you have any pics? Interested to see the pressure regulator. > > Regards > James > > > On Wed, 2 Oct 2019 at 03:11, Alan via Personal_Submersibles < > personal_submersibles at psubs.org> wrote: > > Alex, Cliff, > thanks for the report Alex, I hadn't thought about the oscillation from > flooding the ballasts too quickly. > As for the compensating regulator, Cliff I am about to try it out on my > thruster on an inflatable boat. I am having an air over oil system. Just > bought > a 18 cuft pony bottle for it. > There is silicone oil in the thruster housing & in the line leading to the > compensating > regulator. So very little air is required to compensate, & if oil leaks > out it is > replaced by air & indicated by the oil height in the line. > Alex, as for the pressure differential in the regulator; I am not sure > what operating > range you chose for that regulator. Did you go for the lowest range? > I think they have a piston which could stick a bit in that low 4 psi > range, hence your > zero pressure. The relieving part of the regulator is set by the size of > its spring. > You could put a weaker spring in if you want the pressure relief on > ascending > to be closer to your set pressure, however you run the risk of it free > flowing. > In commercial spring pressurised compensators they get a variance in > pressure > larger than what you are experiencing, but this is over time due to the > spring > extending as the oil level goes down. > Alan > > > > On 2/10/2019, at 6:31 AM, Cliff Redus via Personal_Submersibles < > personal_submersibles at psubs.org> wrote: > > Alex, great report on mods to Shackleton. It sounds like the mods you > made to both the trailer and MBT system worked. The discussion on the fast > acting MBT mushroom vent valves was interesting, particularly the part > about the vertical oscillation. My guess is another way to null out the > oscillation would be to open the MBT vents for a specific amount of time so > that you were shooting for flooding 80% of the MBT volume, close the MBT > for a short time then open them again to finish the flood. I bet if you > experimented with this you would find a set of time constants that would > generate a fairly fast but smooth flood without oscillation. As you say, > it is not a big deal as you can null out with vertical thrusters. > > On the air pressure compensation issue. On the R300, I have gone over to > the dark side and switch to oil compensation on all my thrusters. Yes air > compensation with the pressure reducing regulator has worked fine for years > but at the Flathead Lake Expedition, I had issues with the the aft > thrusters partially flooding. It could have been that the pressure > reducing regulator needed servicing. The primary reason I switched is that > I just don't like using up my HP air with this task. For shallow dives it > is not big deal but for deep dives to 200-300 ft air consumption is > significant. I am using WD-40 for the pressure compensation and the small > plastic accorfdian bottles you sent me for expansion. I put a strobe light > on the thrusters to measure rpm of the Minn-Kota 101s with both air and oil > compensation. There is about a 5% reduction in shaft speed under no load > conditions out of the water. I did not detect a significant change in > current again under no load conditions. Next step is to take the R300 to a > local lake to test the "dark side" pressure compensation for the thrusters. > > Back to your test. How was the underwater maneuverability and the view > through that magnificent bow viewport? > > Cliff > > On Tuesday, October 1, 2019, 11:29:37 AM CDT, Alec Smyth via > Personal_Submersibles wrote: > > > Hi everyone, > > Just a quick update on Shackleton test dives we made last week. Many > thanks to Brian Hughes, Dan Lance, Steve McQueen, and Mark Ragan, who all > drove big distances and set aside three days in the middle of the week. > > An earlier trailering issue has thankfully been resolved. Make sure you > have sufficient tongue weight!!! The longitudinal location of the sub in my > case produces about 300 lbs of tongue weight per inch that you move the sub > forward, so it's absolutely key to locate the sub accurately. The earlier > problem was that the trailer went into harmonic oscillation and decided it > liked to travel next to the tow vehicle rather than behind it. Solution: > Increased tongue weight to 580 lbs, reinforced the tongue to deal with > that, and added a damper between trailer and tow vehicle. Here is the > damper: > https://www.campingworld.com/curt-manufacturing-curt-17200-sway-control-kit-91408.html?gclid=EAIaIQobChMIzZySh9vx5AIVD2yGCh1lOQXZEAQYAiABEgIZ3fD_BwE > > I added buoyancy foam bolt-on flotation for operating in fresh water with > a crew of two, which is the maximum payload/minimum buoyancy scenario. It > worked perfectly, and is cheaper than syntactic foam. The sub happens to be > the right shape for a material that comes in sheets. In the pics, these are > the flat white slabs on the side of the MBTs. The material is R-3315, > described in this article: > https://sea-technology.com/feature-article-low-density-polyurethane-foam-for-subsea-buoyancy-systems > > Diving with the mushroom valves is sure different, and decidedly easier. > In a K boat, you flood MBTs somewhat tentatively, intermittently opening > and closing one or the other valve to keep the boat level. I've abandoned > that practice in Shackleton, and just leave both MBT valves open until > under. That only takes seconds, so there's no concern about getting out of > trim because there isn't time to - she stays flat. > > The sub dives so fast that flooding MBT puts her in vertical oscillation. > Lets say you dive in perfect trim, just a few pounds positive. The sub will > descend until the CT is 7 feet underwater, come up and break the surface, > then go down again but not as far, bob up again and break the surface, and > finally stay there. Initially we were looking to dial in the ballast and > this was a little confusing, because the first impression upon venting is > that the boat is heavy. However, once ballasted there is no need to bounce > up and down when you dive. If you add down thrust while flooding MBT, she > goes straight down. > > The system of using trawl floats to adjust for different crew weights > worked beautifully. When changing crews, you just lift a trapdoor in the > deck and add or remove floats. They are located under the front half of the > deck, since that is above the passenger and thus aligned with the weight > variability you are adjusting for. I'll never use VBT again, this is > simpler and works really well. > > Stability was also really good. Several people can walk around the deck, > and you can go to any edge of the deck without inducing much heel at all. > After diving for a while, if the crew wanted to switch positions we > surfaced, both got out on deck, and got back in again in reverse order. > > The only thing that was fidgety, although it still did its job, was the > pressure compensation regulator. I have a differential pressure gauge in > the sub, which allows me to see how the compensation pressure compares to > ambient. I set it at +4psi but this sometimes (other times not) went to > zero at depth. On surfacing it seemed to have trouble venting and climbed > to +9. Cliff uses the same exact regulator with no problem, so I might just > have a dud. It is an industrial regulator, but I think I might trade it out > for a SCUBA 2nd stage because that would have a far larger vent valve. > > A surfacing blow consumes about 300psi. That does not completely fill the > MBTs, I could blow far more, but it is sufficient to get out and walk > around. So a set of tanks is good for about 10 dives and I will plan on 8. > > Shackleton has two battery pods with 6 batteries each. We dived all day on > one bank and it's charge indicator only went from 10 to 8 bars. So I'm not > sure how accurate or proportional that instrument is, but it said we had > only used about 10 percent of battery capacity in a full day. > > At last, I've a compass that works and we were able to follow headings > submerged with no problem. It's on the deck, about a foot above the main > cylinder and two feet in front of the CT. You just look out the window to > read it. I tried running the thrusters hard but did not observe any effect > of their current on the compass. In Snoopy my compass would spin. > > We tested the emergency release float. It worked fine, and the nice thing > is that the release can be stopped when the float reaches the surface, to > avoid trailing a super long line. But someone said there is a mechanism > that allows you to wind it back in from the sub, and that would be even > better! > > Freeboard came out to design, 24 inches. Even trim. > > We only went to 25 feet, and next up will be a depth test - most likely in > the spring. > > Best, > Alec > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Fri Oct 4 18:25:44 2019 From: personal_submersibles at psubs.org (Alec Smyth via Personal_Submersibles) Date: Fri, 4 Oct 2019 18:25:44 -0400 Subject: [PSUBS-MAILIST] Shackleton testing In-Reply-To: References: <157852802.2128306.1569951094745@mail.yahoo.com> <1334287322.2505138.1570017151067@mail.yahoo.com> Message-ID: No, sorry, I've never towed her yet. I don't expect it to go well in terms of being streamlined, and she'll probably tow like a parachute. But at least there's freeboard, so the towing can be done without being on board. On Fri, Oct 4, 2019 at 6:22 PM David Colombo via Personal_Submersibles < personal_submersibles at psubs.org> wrote: > Hi Alec, she looks great! With the new deck shape, did you have a chance > to tow it and see how she tracks? On your float release i am building a > retrieving motor to coil in the line. I'll let you know how it works. > David > > On Wed, Oct 2, 2019, 4:53 AM hank pronk via Personal_Submersibles < > personal_submersibles at psubs.org> wrote: > >> Alec, >> Congratulations! I know you had some hurtles to overcome with that small >> diameter hull. I love the deck and stability. The fast valves must be >> nice. It sure looks sharp sitting at the surface and the three big floats >> add to it. The sub is inspirational and shows what can be done by a home >> builder in a garage. >> Hank >> >> On Wednesday, October 2, 2019, 4:19:28 AM MDT, James Frankland via >> Personal_Submersibles wrote: >> >> >> Alec, >> >> Great report. Sounds like really succesful dives. >> Do you have any pics? Interested to see the pressure regulator. >> >> Regards >> James >> >> >> On Wed, 2 Oct 2019 at 03:11, Alan via Personal_Submersibles < >> personal_submersibles at psubs.org> wrote: >> >> Alex, Cliff, >> thanks for the report Alex, I hadn't thought about the oscillation from >> flooding the ballasts too quickly. >> As for the compensating regulator, Cliff I am about to try it out on my >> thruster on an inflatable boat. I am having an air over oil system. Just >> bought >> a 18 cuft pony bottle for it. >> There is silicone oil in the thruster housing & in the line leading to >> the compensating >> regulator. So very little air is required to compensate, & if oil leaks >> out it is >> replaced by air & indicated by the oil height in the line. >> Alex, as for the pressure differential in the regulator; I am not sure >> what operating >> range you chose for that regulator. Did you go for the lowest range? >> I think they have a piston which could stick a bit in that low 4 psi >> range, hence your >> zero pressure. The relieving part of the regulator is set by the size of >> its spring. >> You could put a weaker spring in if you want the pressure relief on >> ascending >> to be closer to your set pressure, however you run the risk of it free >> flowing. >> In commercial spring pressurised compensators they get a variance in >> pressure >> larger than what you are experiencing, but this is over time due to the >> spring >> extending as the oil level goes down. >> Alan >> >> >> >> On 2/10/2019, at 6:31 AM, Cliff Redus via Personal_Submersibles < >> personal_submersibles at psubs.org> wrote: >> >> Alex, great report on mods to Shackleton. It sounds like the mods you >> made to both the trailer and MBT system worked. The discussion on the fast >> acting MBT mushroom vent valves was interesting, particularly the part >> about the vertical oscillation. My guess is another way to null out the >> oscillation would be to open the MBT vents for a specific amount of time so >> that you were shooting for flooding 80% of the MBT volume, close the MBT >> for a short time then open them again to finish the flood. I bet if you >> experimented with this you would find a set of time constants that would >> generate a fairly fast but smooth flood without oscillation. As you say, >> it is not a big deal as you can null out with vertical thrusters. >> >> On the air pressure compensation issue. On the R300, I have gone over to >> the dark side and switch to oil compensation on all my thrusters. Yes air >> compensation with the pressure reducing regulator has worked fine for years >> but at the Flathead Lake Expedition, I had issues with the the aft >> thrusters partially flooding. It could have been that the pressure >> reducing regulator needed servicing. The primary reason I switched is that >> I just don't like using up my HP air with this task. For shallow dives it >> is not big deal but for deep dives to 200-300 ft air consumption is >> significant. I am using WD-40 for the pressure compensation and the small >> plastic accorfdian bottles you sent me for expansion. I put a strobe light >> on the thrusters to measure rpm of the Minn-Kota 101s with both air and oil >> compensation. There is about a 5% reduction in shaft speed under no load >> conditions out of the water. I did not detect a significant change in >> current again under no load conditions. Next step is to take the R300 to a >> local lake to test the "dark side" pressure compensation for the thrusters. >> >> Back to your test. How was the underwater maneuverability and the view >> through that magnificent bow viewport? >> >> Cliff >> >> On Tuesday, October 1, 2019, 11:29:37 AM CDT, Alec Smyth via >> Personal_Submersibles wrote: >> >> >> Hi everyone, >> >> Just a quick update on Shackleton test dives we made last week. Many >> thanks to Brian Hughes, Dan Lance, Steve McQueen, and Mark Ragan, who all >> drove big distances and set aside three days in the middle of the week. >> >> An earlier trailering issue has thankfully been resolved. Make sure you >> have sufficient tongue weight!!! The longitudinal location of the sub in my >> case produces about 300 lbs of tongue weight per inch that you move the sub >> forward, so it's absolutely key to locate the sub accurately. The earlier >> problem was that the trailer went into harmonic oscillation and decided it >> liked to travel next to the tow vehicle rather than behind it. Solution: >> Increased tongue weight to 580 lbs, reinforced the tongue to deal with >> that, and added a damper between trailer and tow vehicle. Here is the >> damper: >> https://www.campingworld.com/curt-manufacturing-curt-17200-sway-control-kit-91408.html?gclid=EAIaIQobChMIzZySh9vx5AIVD2yGCh1lOQXZEAQYAiABEgIZ3fD_BwE >> >> I added buoyancy foam bolt-on flotation for operating in fresh water with >> a crew of two, which is the maximum payload/minimum buoyancy scenario. It >> worked perfectly, and is cheaper than syntactic foam. The sub happens to be >> the right shape for a material that comes in sheets. In the pics, these are >> the flat white slabs on the side of the MBTs. The material is R-3315, >> described in this article: >> https://sea-technology.com/feature-article-low-density-polyurethane-foam-for-subsea-buoyancy-systems >> >> Diving with the mushroom valves is sure different, and decidedly easier. >> In a K boat, you flood MBTs somewhat tentatively, intermittently opening >> and closing one or the other valve to keep the boat level. I've abandoned >> that practice in Shackleton, and just leave both MBT valves open until >> under. That only takes seconds, so there's no concern about getting out of >> trim because there isn't time to - she stays flat. >> >> The sub dives so fast that flooding MBT puts her in vertical oscillation. >> Lets say you dive in perfect trim, just a few pounds positive. The sub will >> descend until the CT is 7 feet underwater, come up and break the surface, >> then go down again but not as far, bob up again and break the surface, and >> finally stay there. Initially we were looking to dial in the ballast and >> this was a little confusing, because the first impression upon venting is >> that the boat is heavy. However, once ballasted there is no need to bounce >> up and down when you dive. If you add down thrust while flooding MBT, she >> goes straight down. >> >> The system of using trawl floats to adjust for different crew weights >> worked beautifully. When changing crews, you just lift a trapdoor in the >> deck and add or remove floats. They are located under the front half of the >> deck, since that is above the passenger and thus aligned with the weight >> variability you are adjusting for. I'll never use VBT again, this is >> simpler and works really well. >> >> Stability was also really good. Several people can walk around the deck, >> and you can go to any edge of the deck without inducing much heel at all. >> After diving for a while, if the crew wanted to switch positions we >> surfaced, both got out on deck, and got back in again in reverse order. >> >> The only thing that was fidgety, although it still did its job, was the >> pressure compensation regulator. I have a differential pressure gauge in >> the sub, which allows me to see how the compensation pressure compares to >> ambient. I set it at +4psi but this sometimes (other times not) went to >> zero at depth. On surfacing it seemed to have trouble venting and climbed >> to +9. Cliff uses the same exact regulator with no problem, so I might just >> have a dud. It is an industrial regulator, but I think I might trade it out >> for a SCUBA 2nd stage because that would have a far larger vent valve. >> >> A surfacing blow consumes about 300psi. That does not completely fill the >> MBTs, I could blow far more, but it is sufficient to get out and walk >> around. So a set of tanks is good for about 10 dives and I will plan on 8. >> >> Shackleton has two battery pods with 6 batteries each. We dived all day >> on one bank and it's charge indicator only went from 10 to 8 bars. So I'm >> not sure how accurate or proportional that instrument is, but it said we >> had only used about 10 percent of battery capacity in a full day. >> >> At last, I've a compass that works and we were able to follow headings >> submerged with no problem. It's on the deck, about a foot above the main >> cylinder and two feet in front of the CT. You just look out the window to >> read it. I tried running the thrusters hard but did not observe any effect >> of their current on the compass. In Snoopy my compass would spin. >> >> We tested the emergency release float. It worked fine, and the nice thing >> is that the release can be stopped when the float reaches the surface, to >> avoid trailing a super long line. But someone said there is a mechanism >> that allows you to wind it back in from the sub, and that would be even >> better! >> >> Freeboard came out to design, 24 inches. Even trim. >> >> We only went to 25 feet, and next up will be a depth test - most likely >> in the spring. >> >> Best, >> Alec >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Fri Oct 4 19:00:52 2019 From: personal_submersibles at psubs.org (Alan via Personal_Submersibles) Date: Sat, 5 Oct 2019 12:00:52 +1300 Subject: [PSUBS-MAILIST] Shackleton testing In-Reply-To: References: <157852802.2128306.1569951094745@mail.yahoo.com> <1334287322.2505138.1570017151067@mail.yahoo.com> Message-ID: <7C3A197E-3C8A-4D29-B78C-BED61B43075B@yahoo.com> David, I have been doing a bit of design work on a retrieving motor that Keeps a set tension on the line; so takes up the slack & winds in the line as you ascend. It's main function for me is to release a buoy with dive flag when approaching the surface so I don't get hit by boats & as an emergency buoy with beacon. So the tension is pre-set & the floatation of the buoy is 3x the pre-set tension. The tension setting can be changed from within the sub. If it looks like I am going down the same track & you want my ideas, let me know. Cheers Alan > On 5/10/2019, at 11:21 AM, David Colombo via Personal_Submersibles wrote: > > Hi Alec, she looks great! With the new deck shape, did you have a chance to tow it and see how she tracks? On your float release i am building a retrieving motor to coil in the line. I'll let you know how it works. > David > >> On Wed, Oct 2, 2019, 4:53 AM hank pronk via Personal_Submersibles wrote: >> Alec, >> Congratulations! I know you had some hurtles to overcome with that small diameter hull. I love the deck and stability. The fast valves must be nice. It sure looks sharp sitting at the surface and the three big floats add to it. The sub is inspirational and shows what can be done by a home builder in a garage. >> Hank >> >> On Wednesday, October 2, 2019, 4:19:28 AM MDT, James Frankland via Personal_Submersibles wrote: >> >> >> Alec, >> >> Great report. Sounds like really succesful dives. >> Do you have any pics? Interested to see the pressure regulator. >> >> Regards >> James >> >> >> On Wed, 2 Oct 2019 at 03:11, Alan via Personal_Submersibles wrote: >> Alex, Cliff, >> thanks for the report Alex, I hadn't thought about the oscillation from >> flooding the ballasts too quickly. >> As for the compensating regulator, Cliff I am about to try it out on my >> thruster on an inflatable boat. I am having an air over oil system. Just bought >> a 18 cuft pony bottle for it. >> There is silicone oil in the thruster housing & in the line leading to the compensating >> regulator. So very little air is required to compensate, & if oil leaks out it is >> replaced by air & indicated by the oil height in the line. >> Alex, as for the pressure differential in the regulator; I am not sure what operating >> range you chose for that regulator. Did you go for the lowest range? >> I think they have a piston which could stick a bit in that low 4 psi range, hence your >> zero pressure. The relieving part of the regulator is set by the size of its spring. >> You could put a weaker spring in if you want the pressure relief on ascending >> to be closer to your set pressure, however you run the risk of it free flowing. >> In commercial spring pressurised compensators they get a variance in pressure >> larger than what you are experiencing, but this is over time due to the spring >> extending as the oil level goes down. >> Alan >> >> >> >>> On 2/10/2019, at 6:31 AM, Cliff Redus via Personal_Submersibles wrote: >>> >>> Alex, great report on mods to Shackleton. It sounds like the mods you made to both the trailer and MBT system worked. The discussion on the fast acting MBT mushroom vent valves was interesting, particularly the part about the vertical oscillation. My guess is another way to null out the oscillation would be to open the MBT vents for a specific amount of time so that you were shooting for flooding 80% of the MBT volume, close the MBT for a short time then open them again to finish the flood. I bet if you experimented with this you would find a set of time constants that would generate a fairly fast but smooth flood without oscillation. As you say, it is not a big deal as you can null out with vertical thrusters. >>> >>> On the air pressure compensation issue. On the R300, I have gone over to the dark side and switch to oil compensation on all my thrusters. Yes air compensation with the pressure reducing regulator has worked fine for years but at the Flathead Lake Expedition, I had issues with the the aft thrusters partially flooding. It could have been that the pressure reducing regulator needed servicing. The primary reason I switched is that I just don't like using up my HP air with this task. For shallow dives it is not big deal but for deep dives to 200-300 ft air consumption is significant. I am using WD-40 for the pressure compensation and the small plastic accorfdian bottles you sent me for expansion. I put a strobe light on the thrusters to measure rpm of the Minn-Kota 101s with both air and oil compensation. There is about a 5% reduction in shaft speed under no load conditions out of the water. I did not detect a significant change in current again under no load conditions. Next step is to take the R300 to a local lake to test the "dark side" pressure compensation for the thrusters. >>> >>> Back to your test. How was the underwater maneuverability and the view through that magnificent bow viewport? >>> >>> Cliff >>> >>> On Tuesday, October 1, 2019, 11:29:37 AM CDT, Alec Smyth via Personal_Submersibles wrote: >>> >>> >>> Hi everyone, >>> >>> Just a quick update on Shackleton test dives we made last week. Many thanks to Brian Hughes, Dan Lance, Steve McQueen, and Mark Ragan, who all drove big distances and set aside three days in the middle of the week. >>> >>> An earlier trailering issue has thankfully been resolved. Make sure you have sufficient tongue weight!!! The longitudinal location of the sub in my case produces about 300 lbs of tongue weight per inch that you move the sub forward, so it's absolutely key to locate the sub accurately. The earlier problem was that the trailer went into harmonic oscillation and decided it liked to travel next to the tow vehicle rather than behind it. Solution: Increased tongue weight to 580 lbs, reinforced the tongue to deal with that, and added a damper between trailer and tow vehicle. Here is the damper: https://www.campingworld.com/curt-manufacturing-curt-17200-sway-control-kit-91408.html?gclid=EAIaIQobChMIzZySh9vx5AIVD2yGCh1lOQXZEAQYAiABEgIZ3fD_BwE >>> >>> I added buoyancy foam bolt-on flotation for operating in fresh water with a crew of two, which is the maximum payload/minimum buoyancy scenario. It worked perfectly, and is cheaper than syntactic foam. The sub happens to be the right shape for a material that comes in sheets. In the pics, these are the flat white slabs on the side of the MBTs. The material is R-3315, described in this article: https://sea-technology.com/feature-article-low-density-polyurethane-foam-for-subsea-buoyancy-systems >>> >>> Diving with the mushroom valves is sure different, and decidedly easier. In a K boat, you flood MBTs somewhat tentatively, intermittently opening and closing one or the other valve to keep the boat level. I've abandoned that practice in Shackleton, and just leave both MBT valves open until under. That only takes seconds, so there's no concern about getting out of trim because there isn't time to - she stays flat. >>> >>> The sub dives so fast that flooding MBT puts her in vertical oscillation. Lets say you dive in perfect trim, just a few pounds positive. The sub will descend until the CT is 7 feet underwater, come up and break the surface, then go down again but not as far, bob up again and break the surface, and finally stay there. Initially we were looking to dial in the ballast and this was a little confusing, because the first impression upon venting is that the boat is heavy. However, once ballasted there is no need to bounce up and down when you dive. If you add down thrust while flooding MBT, she goes straight down. >>> >>> The system of using trawl floats to adjust for different crew weights worked beautifully. When changing crews, you just lift a trapdoor in the deck and add or remove floats. They are located under the front half of the deck, since that is above the passenger and thus aligned with the weight variability you are adjusting for. I'll never use VBT again, this is simpler and works really well. >>> >>> Stability was also really good. Several people can walk around the deck, and you can go to any edge of the deck without inducing much heel at all. After diving for a while, if the crew wanted to switch positions we surfaced, both got out on deck, and got back in again in reverse order. >>> >>> The only thing that was fidgety, although it still did its job, was the pressure compensation regulator. I have a differential pressure gauge in the sub, which allows me to see how the compensation pressure compares to ambient. I set it at +4psi but this sometimes (other times not) went to zero at depth. On surfacing it seemed to have trouble venting and climbed to +9. Cliff uses the same exact regulator with no problem, so I might just have a dud. It is an industrial regulator, but I think I might trade it out for a SCUBA 2nd stage because that would have a far larger vent valve. >>> >>> A surfacing blow consumes about 300psi. That does not completely fill the MBTs, I could blow far more, but it is sufficient to get out and walk around. So a set of tanks is good for about 10 dives and I will plan on 8. >>> >>> Shackleton has two battery pods with 6 batteries each. We dived all day on one bank and it's charge indicator only went from 10 to 8 bars. So I'm not sure how accurate or proportional that instrument is, but it said we had only used about 10 percent of battery capacity in a full day. >>> >>> At last, I've a compass that works and we were able to follow headings submerged with no problem. It's on the deck, about a foot above the main cylinder and two feet in front of the CT. You just look out the window to read it. I tried running the thrusters hard but did not observe any effect of their current on the compass. In Snoopy my compass would spin. >>> >>> We tested the emergency release float. It worked fine, and the nice thing is that the release can be stopped when the float reaches the surface, to avoid trailing a super long line. But someone said there is a mechanism that allows you to wind it back in from the sub, and that would be even better! >>> >>> Freeboard came out to design, 24 inches. Even trim. >>> >>> We only went to 25 feet, and next up will be a depth test - most likely in the spring. >>> >>> Best, >>> Alec >>> _______________________________________________ >>> Personal_Submersibles mailing list >>> Personal_Submersibles at psubs.org >>> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >>> _______________________________________________ >>> Personal_Submersibles mailing list >>> Personal_Submersibles at psubs.org >>> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Fri Oct 4 21:30:33 2019 From: personal_submersibles at psubs.org (Cliff Redus via Personal_Submersibles) Date: Sat, 5 Oct 2019 01:30:33 +0000 (UTC) Subject: [PSUBS-MAILIST] Shackleton testing In-Reply-To: References: <157852802.2128306.1569951094745@mail.yahoo.com> <1334287322.2505138.1570017151067@mail.yahoo.com> Message-ID: <2045938126.3946498.1570239033939@mail.yahoo.com> Dave, hope your daughters wedding went well.? Know you were under the gun to get the place ready for the ceremony.When you get a chance could you give me a call on the status of the Flathead Lake Expedition video and photography. I think there is something wrong with your SeaQuester email service as I have not been able to make contact.? Looking forward to tagging with you. Best? Cliff On Friday, October 4, 2019, 05:22:34 PM CDT, David Colombo via Personal_Submersibles wrote: Hi Alec, she looks great! With the new deck shape, did you have a chance to tow it and see how she tracks? On your float release i am building a retrieving motor to coil in the line. I'll let you know how it works.David On Wed, Oct 2, 2019, 4:53 AM hank pronk via Personal_Submersibles wrote: Alec,Congratulations!? I know you had some hurtles to overcome with that small diameter hull.? I love the deck and stability.? The fast valves must be nice.? It sure looks sharp sitting at the surface and the three big floats add to it.? The sub is inspirational and shows ?what can be done by a home builder in a garage.Hank On Wednesday, October 2, 2019, 4:19:28 AM MDT, James Frankland via Personal_Submersibles wrote: Alec, Great report.? Sounds like really succesful dives.Do you have any pics?? ?Interested to see the pressure regulator.?? RegardsJames On Wed, 2 Oct 2019 at 03:11, Alan via Personal_Submersibles wrote: Alex, Cliff,thanks for the report Alex, I hadn't thought about the oscillation fromflooding the ballasts too quickly.As for the compensating regulator, Cliff I am about to try it out on mythruster on an inflatable boat. I am having an air over oil system. Just boughta 18 cuft pony bottle for it.There is silicone oil in the thruster housing & in the line leading to the compensatingregulator. So very little air is required to compensate, & if oil leaks out it isreplaced by air & indicated by the oil height in the line.Alex, as for the pressure differential in the regulator; I am not sure what operatingrange you chose for that regulator. Did you go for the lowest range?I think they have a piston which could stick a bit in that low 4 psi range, hence yourzero pressure. The relieving part of the regulator is set by the size of its spring.You could put a weaker spring in if you want the pressure relief on ascendingto be closer to your set pressure, however you run the risk of it free flowing.In commercial spring pressurised compensators they get a variance in pressurelarger than what you are experiencing, but this is over time due to the spring?extending as the oil level goes down.?Alan On 2/10/2019, at 6:31 AM, Cliff Redus via Personal_Submersibles wrote: Alex, great report on mods to Shackleton.? It sounds like the mods you made to both the trailer and MBT system worked. The discussion on the fast acting MBT mushroom vent valves was interesting, particularly the part about the vertical oscillation.? My guess is another way to null out the oscillation would be to open the MBT vents for a specific amount of time so that you were shooting for flooding 80% of the MBT volume, close the MBT for a short time then open them again to finish the flood.? I bet if you experimented with this you would find a set of time constants that would generate a fairly fast but smooth flood without oscillation.? As you say, it is not a big deal as you can null out with vertical thrusters. On the air pressure compensation issue.? On the R300, I have gone over to the dark side and switch to oil compensation on all my thrusters.? Yes air compensation with the pressure reducing regulator has worked fine for years but at the Flathead Lake Expedition, I had issues with the the aft thrusters partially flooding.? It could have been that the pressure reducing regulator needed servicing.? The primary reason I switched is that I just don't like using up my HP air with this task.? For shallow dives it is not big deal but for deep dives to 200-300 ft air consumption is significant.? I am using WD-40 for the pressure compensation and the small plastic accorfdian bottles you sent me for expansion.? I put a strobe light on the thrusters to measure rpm of the Minn-Kota 101s with both air and oil compensation.? There is about a 5% reduction in shaft speed under no load conditions out of the water.? I did not detect a significant change in current again under no load conditions.? Next step is to take the R300 to a local lake to test the "dark side" pressure compensation for the thrusters. Back to your test.? How was the underwater maneuverability and the view through that magnificent bow viewport? Cliff On Tuesday, October 1, 2019, 11:29:37 AM CDT, Alec Smyth via Personal_Submersibles wrote: Hi everyone, Just a quick update on Shackleton test dives we made last week. Many thanks?to Brian Hughes, Dan Lance, Steve McQueen, and Mark Ragan, who all drove big distances and set aside three days in the middle of the week.? An earlier trailering issue has thankfully been resolved. Make sure you have sufficient tongue weight!!! The longitudinal location of the sub in my case produces about 300 lbs of tongue weight per inch that you move the sub forward, so it's absolutely key to locate the sub accurately. The earlier problem was that the trailer went into harmonic oscillation and decided it liked to travel next to the tow vehicle rather than behind it. Solution: Increased tongue weight to 580 lbs, reinforced the tongue to deal with that, and added a damper between trailer and tow vehicle. Here is the damper:?https://www.campingworld.com/curt-manufacturing-curt-17200-sway-control-kit-91408.html?gclid=EAIaIQobChMIzZySh9vx5AIVD2yGCh1lOQXZEAQYAiABEgIZ3fD_BwE I added buoyancy foam bolt-on flotation for operating in fresh water with a crew of two, which is the maximum payload/minimum buoyancy scenario. It worked perfectly, and is cheaper than syntactic foam. The sub happens to be the right shape for a material that comes in sheets. In the pics, these are the flat white slabs on the side of the MBTs. The material is R-3315, described in this article:?https://sea-technology.com/feature-article-low-density-polyurethane-foam-for-subsea-buoyancy-systems Diving with the mushroom valves is sure different, and decidedly easier. In a K boat, you flood MBTs somewhat tentatively, intermittently opening and closing one or the other valve to keep the boat level. I've abandoned that practice in Shackleton, and just leave both MBT valves open until under. That only takes seconds, so there's no concern about getting out of trim because there isn't time to - she stays flat. The sub dives so fast that flooding MBT puts her in vertical oscillation. Lets say you dive in perfect trim, just a few pounds positive. The sub will descend until the CT is 7 feet underwater, come up and break the surface, then go down again but not as far, bob up again and break the surface, and finally stay there. Initially we were looking to dial in the ballast and this was a little confusing, because the first impression upon venting is that the boat is heavy. However, once ballasted there is no need to bounce up and down when you dive. If you add down thrust while flooding MBT, she goes straight down.? The system of using trawl floats to adjust for different crew weights worked beautifully. When changing crews, you just lift a trapdoor in the deck and add or remove floats. They are located under the front half of the deck, since that is above the passenger and thus aligned with the weight variability you are adjusting for. I'll never use VBT again, this is simpler and works really well. Stability was also really good. Several people can walk around the deck, and you can go to any edge of the deck without inducing much heel at all. After diving for a while, if the crew wanted to switch positions we surfaced, both got out on deck, and got back in again in reverse order.? The only thing that was fidgety, although it still did its job, was the pressure compensation regulator. I have a differential pressure gauge in the sub, which allows me to see how the compensation pressure compares to ambient. I set it at?+4psi but this sometimes (other times not) went to zero at depth. On surfacing it seemed to have trouble venting and climbed to?+9. Cliff uses the same exact regulator with no problem, so I might just have a dud. It is an industrial regulator, but I think I might trade it out for a SCUBA 2nd stage because that would have a far larger vent valve.? A surfacing blow consumes about 300psi. That does not completely fill the MBTs, I could blow far more, but it is sufficient to get out and walk around. So a set of tanks is good for about 10 dives and I will plan on 8.? Shackleton has two battery pods with 6 batteries each. We dived all day on one bank and it's charge indicator only went from 10 to 8 bars. So I'm not sure how accurate or proportional that instrument is, but it said we had only used about 10 percent of battery capacity in a full day.? At last, I've a compass that works and we were able to follow headings submerged with no problem. It's on the deck, about a foot above the main cylinder and two feet in front of the CT. You just look out the window to read it. I tried running the thrusters hard but did not observe any effect of their current on the compass. In Snoopy my compass would spin.? We tested the emergency release float. It worked fine, and the nice thing is that the release can be stopped when the float reaches the surface, to avoid trailing a super long line. But someone said there is a mechanism that allows you to wind it back in from the sub, and that would be even better! Freeboard came out to design, 24 inches. Even trim.?? We only went to 25 feet, and next up will be a depth test - most likely in the spring.? Best,Alec_______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Sat Oct 5 12:21:17 2019 From: personal_submersibles at psubs.org (Brian Hughes via Personal_Submersibles) Date: Sat, 5 Oct 2019 16:21:17 +0000 Subject: [PSUBS-MAILIST] Invasive Species decontamination Message-ID: After what the department of natural resources required to bring a sub into Montana, decided to muse on decontamination process for Harold. Need something simple, portable and easy. How about a camping hot water heater? So I found a new, old stock one on eBay and it's incoming. With potential trips to lakes in New York (many contaminated with invasive mussels) I want to be sure to do it right. I'll rig up something and share when done. I already have the 12v pump I got for another project. Poking around online the recommended method is water at least 100 degrees F with 120 optimal. 140 if you want to just spray it down. Our local quarry that was perfect for sub tests, they let us have it all to ourselves during the week, was shut down last year because zebra mussels were found in it. Now even divers are banned. The local government spent a lot of money to kill them off (the mussels, not the divers) and stop the spread. I doubt it was us, but easy to see how a Great Lakes diver who didn't clean their gear introduced them. Being proactive here. This is what I bought. https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F223588442352 Brian Get Outlook for Android -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Sat Oct 5 12:44:34 2019 From: personal_submersibles at psubs.org (Alec Smyth via Personal_Submersibles) Date: Sat, 5 Oct 2019 12:44:34 -0400 Subject: [PSUBS-MAILIST] Invasive Species decontamination In-Reply-To: References: Message-ID: Applause! I commend you for seeing this as value added, rather than an imposition as some might. Alec On Sat, Oct 5, 2019 at 12:22 PM Brian Hughes via Personal_Submersibles < personal_submersibles at psubs.org> wrote: > After what the department of natural resources required to bring a sub > into Montana, decided to muse on decontamination process for Harold. Need > something simple, portable and easy. How about a camping hot water heater? > So I found a new, old stock one on eBay and it's incoming. With potential > trips to lakes in New York (many contaminated with invasive mussels) I want > to be sure to do it right. I'll rig up something and share when done. I > already have the 12v pump I got for another project. > > Poking around online the recommended method is water at least 100 degrees > F with 120 optimal. 140 if you want to just spray it down. > > Our local quarry that was perfect for sub tests, they let us have it all > to ourselves during the week, was shut down last year because zebra mussels > were found in it. Now even divers are banned. The local government spent a > lot of money to kill them off (the mussels, not the divers) and stop the > spread. I doubt it was us, but easy to see how a Great Lakes diver who > didn't clean their gear introduced them. > > Being proactive here. > > This is what I bought. > > > https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F223588442352 > > Brian > > Get Outlook for Android > > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Sat Oct 5 19:08:23 2019 From: personal_submersibles at psubs.org (MerlinSub@t-online.de via Personal_Submersibles) Date: Sun, 6 Oct 2019 01:08:23 +0200 (CEST) Subject: [PSUBS-MAILIST] Sub for sale In-Reply-To: <1771535892.12286.1570146971209@wamui-cinderella.atl.sa.earthlink.net> References: <1771535892.12286.1570146971209@wamui-cinderella.atl.sa.earthlink.net> Message-ID: <1570316903163.712884.2df2d75f7dbee40bf9e5324e46b6af069195c84f@spica.telekom.de> 16.000 Euro sounds fair for a well build diesel electric sub. But have in mind it is a shallow dive 20 m (66feet) only and a one seater without road trailer. . If you looking for a longe range one seater - ist perfect. vbr Carsten -----Original-Nachricht----- Betreff: Re: [PSUBS-MAILIST] Sub for sale Datum: 2019-10-04T01:57:17+0200 Von: "irox via Personal_Submersibles" An: "Personal Submersibles General Discussion" , "Personal Submersibles General Discussion" WOW!!! 15990 EUR ?!?!?!?!? Is this a scam maybe? How many submarines is too many? Asking for a friend.... -----Original Message----- From: Alec Smyth via Personal_Submersibles Sent: Oct 3, 2019 3:01 PM To: Personal Submersibles General Discussion Subject: [PSUBS-MAILIST] Sub for sale There is a diesel-electric sub for sale in Sweden: https://psauction.se/item/view/603124/ubat-harren-sf3081?fbclid=IwAR2vzjR0WAydZa7yDNlELVATgFImu-FhGsJX6hbJ2FDIt_SkpA4tWsFaEBU What really caught my attention is the "manual" for this sub, which is downloadable from the listing page. It is not only a great manual, it has a ton of photos of construction details that are very, very nicely done. I don't know the seller, but hats off to them. Best, Alec ? -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Sat Oct 5 21:25:31 2019 From: personal_submersibles at psubs.org (David Colombo via Personal_Submersibles) Date: Sat, 5 Oct 2019 18:25:31 -0700 Subject: [PSUBS-MAILIST] Invasive Species decontamination In-Reply-To: References: Message-ID: Brian, in Tahoe last year they flushed the outboard motor for the rib i was using with 180 degree water. Seemed hot to me, but better be safe than sorry. David On Sat, Oct 5, 2019, 9:45 AM Alec Smyth via Personal_Submersibles < personal_submersibles at psubs.org> wrote: > Applause! I commend you for seeing this as value added, rather than an > imposition as some might. > > Alec > > On Sat, Oct 5, 2019 at 12:22 PM Brian Hughes via Personal_Submersibles < > personal_submersibles at psubs.org> wrote: > >> After what the department of natural resources required to bring a sub >> into Montana, decided to muse on decontamination process for Harold. Need >> something simple, portable and easy. How about a camping hot water heater? >> So I found a new, old stock one on eBay and it's incoming. With potential >> trips to lakes in New York (many contaminated with invasive mussels) I want >> to be sure to do it right. I'll rig up something and share when done. I >> already have the 12v pump I got for another project. >> >> Poking around online the recommended method is water at least 100 degrees >> F with 120 optimal. 140 if you want to just spray it down. >> >> Our local quarry that was perfect for sub tests, they let us have it all >> to ourselves during the week, was shut down last year because zebra mussels >> were found in it. Now even divers are banned. The local government spent a >> lot of money to kill them off (the mussels, not the divers) and stop the >> spread. I doubt it was us, but easy to see how a Great Lakes diver who >> didn't clean their gear introduced them. >> >> Being proactive here. >> >> This is what I bought. >> >> >> https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F223588442352 >> >> Brian >> >> Get Outlook for Android >> >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Sun Oct 6 19:14:28 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Sun, 6 Oct 2019 23:14:28 +0000 (UTC) Subject: [PSUBS-MAILIST] new oven References: <324659977.4448245.1570403668678.ref@mail.yahoo.com> Message-ID: <324659977.4448245.1570403668678@mail.yahoo.com> Hi All,Today we are doing a test run on the annealing oven, and I just checked the temp graph ?and the temperature has climbed consistently to 111.4567843287 degrees C so far lolHank -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Sun Oct 6 19:18:47 2019 From: personal_submersibles at psubs.org (Sean T. Stevenson via Personal_Submersibles) Date: Sun, 06 Oct 2019 23:18:47 +0000 Subject: [PSUBS-MAILIST] new oven In-Reply-To: <324659977.4448245.1570403668678@mail.yahoo.com> References: <324659977.4448245.1570403668678.ref@mail.yahoo.com> <324659977.4448245.1570403668678@mail.yahoo.com> Message-ID: Thermocouples or RTDs? Thermocouple accuracy is about +/- 2?C. Don't be misled by the resolution of the signal conditioner and/or display. Sean -------- Original Message -------- On Oct. 6, 2019, 17:14, hank pronk via Personal_Submersibles wrote: > Hi All, > Today we are doing a test run on the annealing oven, and I just checked the temp graph and the temperature has climbed consistently to 111.4567843287 degrees C so far lol > Hank -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Sun Oct 6 19:56:04 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Sun, 6 Oct 2019 23:56:04 +0000 (UTC) Subject: [PSUBS-MAILIST] new oven In-Reply-To: References: <324659977.4448245.1570403668678.ref@mail.yahoo.com> <324659977.4448245.1570403668678@mail.yahoo.com> Message-ID: <2011352074.4480956.1570406164283@mail.yahoo.com> Sean,?I have no clue if its a Chevy or a ford under the hood. ?I just look at the graph on my computer and that's what is says.Hank On Sunday, October 6, 2019, 5:19:06 PM MDT, Sean T. Stevenson via Personal_Submersibles wrote: Thermocouples or RTDs? Thermocouple accuracy is about +/- 2?C. Don't be misled by the resolution of the signal conditioner and/or display. Sean -------- Original Message -------- On Oct. 6, 2019, 17:14, hank pronk via Personal_Submersibles < personal_submersibles at psubs.org> wrote: Hi All,Today we are doing a test run on the annealing oven, and I just checked the temp graph ?and the temperature has climbed consistently to 111.4567843287 degrees C so far lolHank_______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Oct 7 01:21:03 2019 From: personal_submersibles at psubs.org (Alan via Personal_Submersibles) Date: Mon, 7 Oct 2019 18:21:03 +1300 Subject: [PSUBS-MAILIST] new oven In-Reply-To: <324659977.4448245.1570403668678@mail.yahoo.com> References: <324659977.4448245.1570403668678.ref@mail.yahoo.com> <324659977.4448245.1570403668678@mail.yahoo.com> Message-ID: <4436B5DB-CEF1-4BDF-9408-AE4C631C09D3@yahoo.com> Hank, Is that bad or good? Is it increasing at the right rate? Alan > On 7/10/2019, at 12:14 PM, hank pronk via Personal_Submersibles wrote: > > Hi All, > Today we are doing a test run on the annealing oven, and I just checked the temp graph and the temperature has climbed consistently to 111.4567843287 degrees C so far lol > Hank > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Oct 7 05:32:42 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Mon, 7 Oct 2019 09:32:42 +0000 (UTC) Subject: [PSUBS-MAILIST] new oven In-Reply-To: <4436B5DB-CEF1-4BDF-9408-AE4C631C09D3@yahoo.com> References: <324659977.4448245.1570403668678.ref@mail.yahoo.com> <324659977.4448245.1570403668678@mail.yahoo.com> <4436B5DB-CEF1-4BDF-9408-AE4C631C09D3@yahoo.com> Message-ID: <1082429595.4621080.1570440762490@mail.yahoo.com> Alan,There is a little home built computer ?that measures and tracks the temperature and plots it on a graph. ?We are doing this to check the performance of the actual oven controller. ?The rate of temperature increase is extremely consistent,?Hank On Sunday, October 6, 2019, 11:21:25 PM MDT, Alan via Personal_Submersibles wrote: Hank,?Is that bad or good? Is it increasing at the right rate?Alan On 7/10/2019, at 12:14 PM, hank pronk via Personal_Submersibles wrote: Hi All,Today we are doing a test run on the annealing oven, and I just checked the temp graph ?and the temperature has climbed consistently to 111.4567843287 degrees C so far lolHank _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Oct 7 07:38:21 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Mon, 7 Oct 2019 11:38:21 +0000 (UTC) Subject: [PSUBS-MAILIST] new oven In-Reply-To: References: <324659977.4448245.1570403668678.ref@mail.yahoo.com> <324659977.4448245.1570403668678@mail.yahoo.com> Message-ID: <853609996.4650892.1570448301649@mail.yahoo.com> Sean,We are using RTD sensor probes with an accuracy of ?plus\minus .3C at 0 degrees. ?The little measuring and tracking computer is interpreting the data to 8 decimal places or so. ?That was amusing to me.Hank On Sunday, October 6, 2019, 5:19:06 PM MDT, Sean T. Stevenson via Personal_Submersibles wrote: Thermocouples or RTDs? Thermocouple accuracy is about +/- 2?C. Don't be misled by the resolution of the signal conditioner and/or display. Sean -------- Original Message -------- On Oct. 6, 2019, 17:14, hank pronk via Personal_Submersibles < personal_submersibles at psubs.org> wrote: Hi All,Today we are doing a test run on the annealing oven, and I just checked the temp graph ?and the temperature has climbed consistently to 111.4567843287 degrees C so far lolHank_______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Oct 7 08:02:54 2019 From: personal_submersibles at psubs.org (Alan via Personal_Submersibles) Date: Tue, 8 Oct 2019 01:02:54 +1300 Subject: [PSUBS-MAILIST] new oven In-Reply-To: <853609996.4650892.1570448301649@mail.yahoo.com> References: <324659977.4448245.1570403668678.ref@mail.yahoo.com> <324659977.4448245.1570403668678@mail.yahoo.com> <853609996.4650892.1570448301649@mail.yahoo.com> Message-ID: <03A3C669-C30A-4A9C-98F5-C91D5B814248@yahoo.com> Hank, See where this submarine journey is taking you! You are slowly morphing In to an electronics nerd! Alan > On 8/10/2019, at 12:38 AM, hank pronk via Personal_Submersibles wrote: > > Sean, > We are using RTD sensor probes with an accuracy of plus\minus .3C at 0 degrees. The little measuring and tracking computer is interpreting the data to 8 decimal places or so. That was amusing to me. > Hank > > On Sunday, October 6, 2019, 5:19:06 PM MDT, Sean T. Stevenson via Personal_Submersibles wrote: > > > Thermocouples or RTDs? Thermocouple accuracy is about +/- 2?C. Don't be misled by the resolution of the signal conditioner and/or display. > > Sean > > > > > -------- Original Message -------- > On Oct. 6, 2019, 17:14, hank pronk via Personal_Submersibles < personal_submersibles at psubs.org> wrote: > > Hi All, > Today we are doing a test run on the annealing oven, and I just checked the temp graph and the temperature has climbed consistently to 111.4567843287 degrees C so far lol > Hank > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Oct 7 09:33:37 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Mon, 7 Oct 2019 07:33:37 -0600 Subject: [PSUBS-MAILIST] new oven In-Reply-To: <03A3C669-C30A-4A9C-98F5-C91D5B814248@yahoo.com> References: <324659977.4448245.1570403668678.ref@mail.yahoo.com> <324659977.4448245.1570403668678@mail.yahoo.com> <853609996.4650892.1570448301649@mail.yahoo.com> <03A3C669-C30A-4A9C-98F5-C91D5B814248@yahoo.com> Message-ID: Alan If Cliff can put that dreadful oil in his motors, I guess I can take advantage of some electronics. Hank Sent from my iPhone > On Oct 7, 2019, at 6:02 AM, Alan via Personal_Submersibles wrote: > > Hank, > See where this submarine journey is taking you! You are slowly morphing > In to an electronics nerd! > Alan > >> On 8/10/2019, at 12:38 AM, hank pronk via Personal_Submersibles wrote: >> >> Sean, >> We are using RTD sensor probes with an accuracy of plus\minus .3C at 0 degrees. The little measuring and tracking computer is interpreting the data to 8 decimal places or so. That was amusing to me. >> Hank >> >> On Sunday, October 6, 2019, 5:19:06 PM MDT, Sean T. Stevenson via Personal_Submersibles wrote: >> >> >> Thermocouples or RTDs? Thermocouple accuracy is about +/- 2?C. Don't be misled by the resolution of the signal conditioner and/or display. >> >> Sean >> >> >> >> >> -------- Original Message -------- >> On Oct. 6, 2019, 17:14, hank pronk via Personal_Submersibles < personal_submersibles at psubs.org> wrote: >> >> Hi All, >> Today we are doing a test run on the annealing oven, and I just checked the temp graph and the temperature has climbed consistently to 111.4567843287 degrees C so far lol >> Hank >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Oct 7 09:41:23 2019 From: personal_submersibles at psubs.org (Alec Smyth via Personal_Submersibles) Date: Mon, 7 Oct 2019 09:41:23 -0400 Subject: [PSUBS-MAILIST] new oven In-Reply-To: <324659977.4448245.1570403668678@mail.yahoo.com> References: <324659977.4448245.1570403668678.ref@mail.yahoo.com> <324659977.4448245.1570403668678@mail.yahoo.com> Message-ID: Hi Hank, I recall a discussion with Greg Cottrell about his oven years ago. It was a great big thing you could walk into, like a small room. Anyway, the gist of it was that he had installed a number of fans inside, and was measuring temperature at multiple spots in the oven, because it was very important for the temperature inside to be super even. I'm not sure if Greg is on the list, but if you need me to put you in touch I'll be glad to. He's an absolute expert on this, and has for instance supplied the viewports for the Newtsuits. You're a brave man, viewports are a specialty I still find thoroughly intimidating! Best, Alec On Sun, Oct 6, 2019 at 7:15 PM hank pronk via Personal_Submersibles < personal_submersibles at psubs.org> wrote: > Hi All, > Today we are doing a test run on the annealing oven, and I just checked > the temp graph and the temperature has climbed consistently to > 111.4567843287 degrees C so far lol > Hank > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Oct 7 11:35:56 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Mon, 7 Oct 2019 09:35:56 -0600 Subject: [PSUBS-MAILIST] new oven In-Reply-To: References: <324659977.4448245.1570403668678.ref@mail.yahoo.com> <324659977.4448245.1570403668678@mail.yahoo.com> Message-ID: Alec Thanks for the input, I do have a circulating fan with two temperature sensors to ensure even heat. I to am intimidated by this, that is why I have accepted help from my friend. I would not do it otherwise. I am building a pressure chamber specific for the dome to test it Hank Sent from my iPhone > On Oct 7, 2019, at 7:41 AM, Alec Smyth via Personal_Submersibles wrote: > > Hi Hank, > > I recall a discussion with Greg Cottrell about his oven years ago. It was a great big thing you could walk into, like a small room. Anyway, the gist of it was that he had installed a number of fans inside, and was measuring temperature at multiple spots in the oven, because it was very important for the temperature inside to be super even. I'm not sure if Greg is on the list, but if you need me to put you in touch I'll be glad to. He's an absolute expert on this, and has for instance supplied the viewports for the Newtsuits. > > You're a brave man, viewports are a specialty I still find thoroughly intimidating! > > Best, > Alec > >> On Sun, Oct 6, 2019 at 7:15 PM hank pronk via Personal_Submersibles wrote: >> Hi All, >> Today we are doing a test run on the annealing oven, and I just checked the temp graph and the temperature has climbed consistently to 111.4567843287 degrees C so far lol >> Hank >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Oct 7 12:25:36 2019 From: personal_submersibles at psubs.org (Brian Cox via Personal_Submersibles) Date: Mon, 7 Oct 2019 09:25:36 -0700 Subject: [PSUBS-MAILIST] new oven Message-ID: <20191007092536.97E8AD34@m0117565.ppops.net> An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Oct 7 12:51:21 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Mon, 7 Oct 2019 10:51:21 -0600 Subject: [PSUBS-MAILIST] new oven In-Reply-To: <20191007092536.97E8AD34@m0117565.ppops.net> References: <20191007092536.97E8AD34@m0117565.ppops.net> Message-ID: <46D6F7E1-6BE7-4B6C-9914-8DE344C0751A@yahoo.ca> Same email Hank Sent from my iPhone > On Oct 7, 2019, at 10:25 AM, Brian Cox via Personal_Submersibles wrote: > > Sounds great Hank ! BTW do yo have a new email? let me know - brian at ojaivalleybeefarm.com > > Brian > > > > --- personal_submersibles at psubs.org wrote: > > From: hank pronk via Personal_Submersibles > To: Personal Submersibles General Discussion > Subject: Re: [PSUBS-MAILIST] new oven > Date: Mon, 7 Oct 2019 09:35:56 -0600 > > Alec > Thanks for the input, I do have a circulating fan with two temperature sensors to ensure even heat. I to am intimidated by this, that is why I have accepted help from my friend. I would not do it otherwise. I am building a pressure chamber specific for the dome to test it > Hank > > Sent from my iPhone > > On Oct 7, 2019, at 7:41 AM, Alec Smyth via Personal_Submersibles wrote: > > Hi Hank, > > I recall a discussion with Greg Cottrell about his oven years ago. It was a great big thing you could walk into, like a small room. Anyway, the gist of it was that he had installed a number of fans inside, and was measuring temperature at multiple spots in the oven, because it was very important for the temperature inside to be super even. I'm not sure if Greg is on the list, but if you need me to put you in touch I'll be glad to. He's an absolute expert on this, and has for instance supplied the viewports for the Newtsuits. > > You're a brave man, viewports are a specialty I still find thoroughly intimidating! > > Best, > Alec > > On Sun, Oct 6, 2019 at 7:15 PM hank pronk via Personal_Submersibles wrote: > Hi All, > Today we are doing a test run on the annealing oven, and I just checked the temp graph and the temperature has climbed consistently to 111.4567843287 degrees C so far lol > Hank > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue Oct 8 14:06:10 2019 From: personal_submersibles at psubs.org (Jon Wallace via Personal_Submersibles) Date: Tue, 8 Oct 2019 18:06:10 +0000 (UTC) Subject: [PSUBS-MAILIST] VAS 525 scale model References: <1904544348.5610455.1570557971606.ref@mail.yahoo.com> Message-ID: <1904544348.5610455.1570557971606@mail.yahoo.com> Found this GSE Triest VAS 525 scaled "model" on my bicycle ride. It has found it's way to a Key Largo, FL boat lift company in it's new role as advertising attention-getter. This boat lift company purchased it from a dive shop that was going out of business. The text states "Tank Test Model (half scale)" but based upon the actual size of the VAS 525 this model looks more like quarter scale. See?https://yachtharbour.com/yacht/yellow-submarine-1439 Jon -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: IMG_4442-1.jpg Type: image/jpeg Size: 311841 bytes Desc: not available URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: IMG_4442-2.jpg Type: image/jpeg Size: 315032 bytes Desc: not available URL: From personal_submersibles at psubs.org Tue Oct 8 16:56:46 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Tue, 8 Oct 2019 20:56:46 +0000 (UTC) Subject: [PSUBS-MAILIST] (no subject) In-Reply-To: <40040B0C-990C-4C70-8322-A718972FF974@yahoo.ca> References: <40040B0C-990C-4C70-8322-A718972FF974@yahoo.ca> Message-ID: <663693765.5550173.1570568206648@mail.yahoo.com> Hi All, ?I am a happy camper today because I picked up a low hours generator to power my BIG Lathe. ?Hank ----- Forwarded Message ----- From: hank pronk To: hank pronk Sent: Tuesday, October 8, 2019, 2:54:04 PM MDTSubject: Sent from my iPhone -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: IMG_0658.jpg Type: image/jpeg Size: 159789 bytes Desc: not available URL: From personal_submersibles at psubs.org Tue Oct 8 17:06:40 2019 From: personal_submersibles at psubs.org (David Colombo via Personal_Submersibles) Date: Tue, 8 Oct 2019 14:06:40 -0700 Subject: [PSUBS-MAILIST] (no subject) In-Reply-To: <663693765.5550173.1570568206648@mail.yahoo.com> References: <40040B0C-990C-4C70-8322-A718972FF974@yahoo.ca> <663693765.5550173.1570568206648@mail.yahoo.com> Message-ID: How big and how much? Best Regards, David Colombo 804 College Ave Santa Rosa, CA. 95404 (707) 536-1424 www.SeaQuestor.com On Tue, Oct 8, 2019 at 1:57 PM hank pronk via Personal_Submersibles < personal_submersibles at psubs.org> wrote: > Hi All, I am a happy camper today because I picked up a low hours > generator to power my BIG Lathe. > Hank > > ----- Forwarded Message ----- > *From:* hank pronk > *To:* hank pronk > *Sent:* Tuesday, October 8, 2019, 2:54:04 PM MDT > *Subject:* > > > > > > Sent from my iPhone > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue Oct 8 18:20:11 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Tue, 8 Oct 2019 16:20:11 -0600 Subject: [PSUBS-MAILIST] (no subject) In-Reply-To: References: <40040B0C-990C-4C70-8322-A718972FF974@yahoo.ca> <663693765.5550173.1570568206648@mail.yahoo.com> Message-ID: David. It is 45KW three phase or single, but hooked up for three. Runs on propane and has 1880 hrs. I paid 1,500 dollars. What a bargain. It also starts automatically when there is a demand Hank Sent from my iPhone > On Oct 8, 2019, at 3:06 PM, David Colombo via Personal_Submersibles wrote: > > How big and how much? > Best Regards, > David Colombo > > 804 College Ave > Santa Rosa, CA. 95404 > (707) 536-1424 > www.SeaQuestor.com > > > >> On Tue, Oct 8, 2019 at 1:57 PM hank pronk via Personal_Submersibles wrote: >> Hi All, I am a happy camper today because I picked up a low hours generator to power my BIG Lathe. >> Hank >> >> ----- Forwarded Message ----- >> From: hank pronk >> To: hank pronk >> Sent: Tuesday, October 8, 2019, 2:54:04 PM MDT >> Subject: >> >> >> >> >> >> Sent from my iPhone >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue Oct 8 18:54:56 2019 From: personal_submersibles at psubs.org (Alan via Personal_Submersibles) Date: Wed, 9 Oct 2019 11:54:56 +1300 Subject: [PSUBS-MAILIST] (no subject) In-Reply-To: References: <40040B0C-990C-4C70-8322-A718972FF974@yahoo.ca> <663693765.5550173.1570568206648@mail.yahoo.com> Message-ID: <7C8ABF35-0F97-4788-AC66-2C41FE53AA72@yahoo.com> Hank, Connect it to the grid & run your town in a power outage! Alan > On 9/10/2019, at 11:20 AM, hank pronk via Personal_Submersibles wrote: > > David. It is 45KW three phase or single, but hooked up for three. Runs on propane and has 1880 hrs. I paid 1,500 dollars. What a bargain. It also starts automatically when there is a demand > Hank > > Sent from my iPhone > >> On Oct 8, 2019, at 3:06 PM, David Colombo via Personal_Submersibles wrote: >> >> How big and how much? >> Best Regards, >> David Colombo >> >> 804 College Ave >> Santa Rosa, CA. 95404 >> (707) 536-1424 >> www.SeaQuestor.com >> >> >> >>> On Tue, Oct 8, 2019 at 1:57 PM hank pronk via Personal_Submersibles wrote: >>> Hi All, I am a happy camper today because I picked up a low hours generator to power my BIG Lathe. >>> Hank >>> >>> ----- Forwarded Message ----- >>> From: hank pronk >>> To: hank pronk >>> Sent: Tuesday, October 8, 2019, 2:54:04 PM MDT >>> Subject: >>> >>> >>> >>> >>> >>> Sent from my iPhone >>> _______________________________________________ >>> Personal_Submersibles mailing list >>> Personal_Submersibles at psubs.org >>> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue Oct 8 19:01:37 2019 From: personal_submersibles at psubs.org (David Colombo via Personal_Submersibles) Date: Tue, 8 Oct 2019 16:01:37 -0700 Subject: [PSUBS-MAILIST] (no subject) In-Reply-To: <7C8ABF35-0F97-4788-AC66-2C41FE53AA72@yahoo.com> References: <40040B0C-990C-4C70-8322-A718972FF974@yahoo.ca> <663693765.5550173.1570568206648@mail.yahoo.com> <7C8ABF35-0F97-4788-AC66-2C41FE53AA72@yahoo.com> Message-ID: Hank, I'm on my way to pick up new generator. Is $3000 enough to take off your hands? David -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue Oct 8 19:56:59 2019 From: personal_submersibles at psubs.org (T Novak via Personal_Submersibles) Date: Tue, 8 Oct 2019 16:56:59 -0700 Subject: [PSUBS-MAILIST] (no subject) In-Reply-To: References: <40040B0C-990C-4C70-8322-A718972FF974@yahoo.ca> <663693765.5550173.1570568206648@mail.yahoo.com> Message-ID: <000601d57e34$13ad47a0$3b07d6e0$@telus.net> Hank, I am surprised you did not pick this one up discarded at your local magical dump. Regardless, you sure tend to be at the right place at the right time? indeed a superpower. Tim From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of hank pronk via Personal_Submersibles Sent: Tuesday, October 8, 2019 3:20 PM To: Personal Submersibles General Discussion Subject: Re: [PSUBS-MAILIST] (no subject) David. It is 45KW three phase or single, but hooked up for three. Runs on propane and has 1880 hrs. I paid 1,500 dollars. What a bargain. It also starts automatically when there is a demand Hank Sent from my iPhone On Oct 8, 2019, at 3:06 PM, David Colombo via Personal_Submersibles > wrote: How big and how much? Best Regards, David Colombo 804 College Ave Santa Rosa, CA. 95404 (707) 536-1424 www.SeaQuestor.com On Tue, Oct 8, 2019 at 1:57 PM hank pronk via Personal_Submersibles > wrote: Hi All, I am a happy camper today because I picked up a low hours generator to power my BIG Lathe. Hank ----- Forwarded Message ----- From: hank pronk > To: hank pronk > Sent: Tuesday, October 8, 2019, 2:54:04 PM MDT Subject: Sent from my iPhone _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image001.jpg Type: image/jpeg Size: 594 bytes Desc: not available URL: From personal_submersibles at psubs.org Wed Oct 9 22:03:50 2019 From: personal_submersibles at psubs.org (Brian Hughes via Personal_Submersibles) Date: Thu, 10 Oct 2019 02:03:50 +0000 Subject: [PSUBS-MAILIST] Vessel for hire - subs as unique watercraft Message-ID: Whilst recently enjoying a fine cigar and outstanding bourbon, five sub owners sat around a bonfire at Raystown Lake, Pennsylvania and contemplated US Coast Guard requirements for carrying passengers. Especially paying passengers. Does one need a Captain's License to do so in a submarine? The distinction arose around diving in lakes or diving in waters normally patrolled by the Coast Guard. Further, what does piloting a boat on the surface have in common with piloting a boat that purposefully sinks and comes back up? Thoughts? Internationally friends, what is your experience? Brian Get Outlook for Android -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Wed Oct 9 22:52:11 2019 From: personal_submersibles at psubs.org (Sean T. Stevenson via Personal_Submersibles) Date: Thu, 10 Oct 2019 02:52:11 +0000 Subject: [PSUBS-MAILIST] Vessel for hire - subs as unique watercraft In-Reply-To: References: Message-ID: Submersible vessels for hire are subject to the same legal requirements as other vessels, with the exception of construction standards / classification. Crewing requirements are still set by tonnage (which is a measure of commercially relevant volume). Here in Canada, a certificate of competency as master up to a particular tonnage limit would work exactly the same way as for surface vessels, but a submersible endorsement is attained by also having an accredited commercial diving qualification of any type (restricted or unrestricted surface supply, or occupational SCUBA). USCG requirements vary a bit from the Canadian ones. My master certificate is good only up to 60 GRT. In the states I think you guys start at 100 if I'm not mistaken. In any case, any vessel operating in a commercial capacity must meet construction standards, must be fully in compliance with the International Regulations for the Prevention of Collisions at Sea, must be crewed according to regulations for its tonnage and power plant, and must pass any relevant Coast Guard / DOT inspections. I think you would have a tough time operating commercially without insurance for the purpose, which is likely dependent on an ABS / GL / DNV or what have you classification. The other route of course is to pull a Karl Stanley and change legal jurisdictions. Sean -------- Original Message -------- On Oct. 9, 2019, 20:03, Brian Hughes via Personal_Submersibles wrote: > Whilst recently enjoying a fine cigar and outstanding bourbon, five sub owners sat around a bonfire at Raystown Lake, Pennsylvania and contemplated US Coast Guard requirements for carrying passengers. Especially paying passengers. Does one need a Captain's License to do so in a submarine? > > The distinction arose around diving in lakes or diving in waters normally patrolled by the Coast Guard. Further, what does piloting a boat on the surface have in common with piloting a boat that purposefully sinks and comes back up? > > Thoughts? Internationally friends, what is your experience? > > Brian > > Get [Outlook for Android](https://aka.ms/ghei36) -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Thu Oct 10 00:17:32 2019 From: personal_submersibles at psubs.org (Rick Patton via Personal_Submersibles) Date: Wed, 9 Oct 2019 18:17:32 -1000 Subject: [PSUBS-MAILIST] Vessel for hire - subs as unique watercraft In-Reply-To: References: Message-ID: Yeah, and maybe Sean said it above as well but the sub has to be built to ABS specs I believe here in the US which I am not doing as it would double, or more, the cost of the build plus I don't plan to use it commercially. One way some people get around it when you accept money from the public is to be in the form of a donation but not sure how that would play out if someone was killed and the family took you to court. Rick On Wed, Oct 9, 2019 at 4:53 PM Sean T. Stevenson via Personal_Submersibles < personal_submersibles at psubs.org> wrote: > Submersible vessels for hire are subject to the same legal requirements as > other vessels, with the exception of construction standards / > classification. Crewing requirements are still set by tonnage (which is a > measure of commercially relevant volume). Here in Canada, a certificate of > competency as master up to a particular tonnage limit would work exactly > the same way as for surface vessels, but a submersible endorsement is > attained by also having an accredited commercial diving qualification of > any type (restricted or unrestricted surface supply, or occupational > SCUBA). USCG requirements vary a bit from the Canadian ones. My master > certificate is good only up to 60 GRT. In the states I think you guys start > at 100 if I'm not mistaken. In any case, any vessel operating in a > commercial capacity must meet construction standards, must be fully in > compliance with the International Regulations for the Prevention of > Collisions at Sea, must be crewed according to regulations for its tonnage > and power plant, and must pass any relevant Coast Guard / DOT inspections. > I think you would have a tough time operating commercially without > insurance for the purpose, which is likely dependent on an ABS / GL / DNV > or what have you classification. The other route of course is to pull a > Karl Stanley and change legal jurisdictions. > > Sean > > > -------- Original Message -------- > On Oct. 9, 2019, 20:03, Brian Hughes via Personal_Submersibles < > personal_submersibles at psubs.org> wrote: > > > Whilst recently enjoying a fine cigar and outstanding bourbon, five sub > owners sat around a bonfire at Raystown Lake, Pennsylvania and contemplated > US Coast Guard requirements for carrying passengers. Especially paying > passengers. Does one need a Captain's License to do so in a submarine? > > The distinction arose around diving in lakes or diving in waters normally > patrolled by the Coast Guard. Further, what does piloting a boat on the > surface have in common with piloting a boat that purposefully sinks and > comes back up? > > Thoughts? Internationally friends, what is your experience? > > Brian > > > > > Get Outlook for Android > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Thu Oct 10 00:19:58 2019 From: personal_submersibles at psubs.org (Jon Wallace via Personal_Submersibles) Date: Thu, 10 Oct 2019 04:19:58 +0000 (UTC) Subject: [PSUBS-MAILIST] Vessel for hire - subs as unique watercraft In-Reply-To: References: Message-ID: <189735126.145269.1570681198876@mail.yahoo.com> It's a can of worms that nobody wants to open.? Currently, US operations are governed by USCG NVIC 5-93 which is almost 27 years old and was authored in anticipation of a 1993 bill that ultimately never passed Congress.? What it provides, and limits, depends upon who you talk to. However, it's clear that the USCG intended to scrutinize passenger carrying vessels much more than non-passenger vessels.? The specific rules depend upon number of passengers.? Vessels carrying more than 6 passengers are subject to 46 CFR Subchapter-T Small Passenger Vessels.? Vessels carrying 6 or less passengers are subject to 46 CFR Subchapter-C Uninspected Vessels.? Additionally, it states, "an uninspected submersible may be permitted inU.S. passenger operations only if it is designed and constructed to a recognizedindustry standard".? Note, there is no wording that specifically sets a requirement for "certification" but we can assume that's what they intended. Recreational Submersibles are defined as "vessels manufactured or operated primarily for pleasure, or leased, rented, or chartered toanother for the latter's pleasure. Submersibles within this category are subject to therequirements of 33 CFR Subchapter S - Boating Safety, Parts 173-183."? Now interestingly the 5-93 circular is silent regarding passengers on recreational submarines.? In fact, it states, "The guidelines inthis circular generally do not apply..." which might lead you to think it was ok for us to take passengers, but there is other federal law describing "passenger carrying" vessels that would obviously restrict us from doing that. Perhaps one loophole, workers on a vessel are not "passengers". So anyway, it's an extremely complicated situation at the moment with too many rules and too many interpretations.? Most people don't want to discuss it for fear that drawing attention to them will cause stricter rules and enforcement.? MTSMUV has been trying to develop new rules based upon different classifications however I have found their suggested changes severely limit the personal/recreational market and thusfar we have been unable to find any middle ground. Jon On Wednesday, October 9, 2019, 10:06:01 PM EDT, Brian Hughes via Personal_Submersibles wrote: Whilst recently enjoying a fine cigar and outstanding bourbon, five sub owners sat around a bonfire at Raystown Lake, Pennsylvania and contemplated US Coast Guard requirements for carrying passengers. Especially paying passengers. Does one need a Captain's License to do so in a submarine? The distinction arose around diving in lakes or diving in waters normally patrolled by the Coast Guard. Further, what does piloting a boat on the surface have in common with piloting a boat that purposefully sinks and comes back up? Thoughts? Internationally friends, what is your experience? Brian Get Outlook for Android_______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Thu Oct 10 05:55:56 2019 From: personal_submersibles at psubs.org (Brian Hughes via Personal_Submersibles) Date: Thu, 10 Oct 2019 09:55:56 +0000 Subject: [PSUBS-MAILIST] Vessel for hire - subs as unique watercraft Message-ID: Good material Jon, thanks. So related, do those regs apply everywhere, as in, do the Coast Guard vessel and captain requirements apply in say, a local small lake or quarry? Brian Get Outlook for Android -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Thu Oct 10 08:01:52 2019 From: personal_submersibles at psubs.org (Jon Wallace via Personal_Submersibles) Date: Thu, 10 Oct 2019 12:01:52 +0000 (UTC) Subject: [PSUBS-MAILIST] Vessel for hire - subs as unique watercraft In-Reply-To: References: Message-ID: <453477168.269026.1570708912933@mail.yahoo.com> It depends.? A body of water that is completely under state control would be guided by any applicable law or regulations of that state.? However, there are bodies of water within states that are actually controlled by the Federal government so CFR and USCG rules would apply. Just curious, you know Mark Ragan, right?? Have you talked to him? Jon On Thursday, October 10, 2019, 05:57:58 AM EDT, Brian Hughes via Personal_Submersibles wrote: Good material Jon, thanks. So related, do those regs apply everywhere, as in, do the Coast Guard vessel and captain requirements apply in say, a local small lake or quarry? Brian Get Outlook for Android_______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Thu Oct 10 10:58:03 2019 From: personal_submersibles at psubs.org (Brian Hughes via Personal_Submersibles) Date: Thu, 10 Oct 2019 10:58:03 -0400 Subject: [PSUBS-MAILIST] Vessel for hire - subs as unique watercraft Message-ID: <5d9f46f9.1c69fb81.b39f0.0a82@mx.google.com> Jon, Mark was part of the conversation as was Steve McQueen, Daniel Lance, Alex Smyth and myself. This was the evening after we had launched Alec?s new boat and we started ruminating on what we are doing or plan to do with our various subs. In the past Mark worked with the Coast Guard and they basically told him, ?we don?t know what to do with you so keep it to yourself.? Because his primary mission is lessons, as many of you know, he opted to not be in the sub and be able to run everything from the outside. He has a cam on the student, com and can blow the ballast tanks from the surface ? remote control sub in case something happens. It?s even easier now that he?s gone back to a K250. He also has an ironclad hold harmless document students sign. For those of us whose primary usage would be recreational, (or search and recovery with me as the sole occupant) what got me asking the question is what to do if the occasional opportunity should arise. What if a research expedition arose and there might be an occasion for grant money to take scientists below, etc. Or a weekend driving people around a lake. As I?ll be retired the end of this year and will be spending more time sub?n, these are the sorts of things that I ask when smoking a really good cigar and sip?n a fine single cask bourbon. Brian Sent from Mail for Windows 10 -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Thu Oct 10 04:42:19 2019 From: personal_submersibles at psubs.org (Rick Patton via Personal_Submersibles) Date: Wed, 9 Oct 2019 22:42:19 -1000 Subject: [PSUBS-MAILIST] Vessel for hire - subs as unique watercraft In-Reply-To: <5d9f46f9.1c69fb81.b39f0.0a82@mx.google.com> References: <5d9f46f9.1c69fb81.b39f0.0a82@mx.google.com> Message-ID: Brian Did you build your sub to ABS specs and have the inspector come in all the time to make sure certain guidelines were followed? If you don't charge for taking someone down then signing a hold harmless agreement would be a must at the least but from I understand, if you accept money from the public for a service like that, then that changes things entirely such as having the boat built to ABS specs if built in the states or NIPPON if built in Japan etc. A friend of mine refurbished a two place trainer jet that he bought from Chechnya and it was classed as experimental and he took me up several times and I paid each time for the ride and I had to sign an in depth hold harmless agreement and he said that the money I paid had to be called a donation as the plane was classed experimental. I would do this no matter where you dove, lake quarry etc. Rick On Thu, Oct 10, 2019 at 5:11 AM Brian Hughes via Personal_Submersibles < personal_submersibles at psubs.org> wrote: > Jon, > > > > Mark was part of the conversation as was Steve McQueen, Daniel Lance, > Alex Smyth and myself. This was the evening after we had launched Alec?s > new boat and we started ruminating on what we are doing or plan to do with > our various subs. > > > > In the past Mark worked with the Coast Guard and they basically told him, > ?we don?t know what to do with you so keep it to yourself.? Because his > primary mission is lessons, as many of you know, he opted to not be in the > sub and be able to run everything from the outside. He has a cam on the > student, com and can blow the ballast tanks from the surface ? remote > control sub in case something happens. It?s even easier now that he?s gone > back to a K250. He also has an ironclad hold harmless document students > sign. > > > > For those of us whose primary usage would be recreational, (or search and > recovery with me as the sole occupant) what got me asking the question is > what to do if the occasional opportunity should arise. What if a research > expedition arose and there might be an occasion for grant money to take > scientists below, etc. Or a weekend driving people around a lake. As I?ll > be retired the end of this year and will be spending more time sub?n, these > are the sorts of things that I ask when smoking a really good cigar and > sip?n a fine single cask bourbon. > > > > Brian > > > > > > Sent from Mail for > Windows 10 > > > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Thu Oct 10 14:29:30 2019 From: personal_submersibles at psubs.org (Brian Cox via Personal_Submersibles) Date: Thu, 10 Oct 2019 11:29:30 -0700 Subject: [PSUBS-MAILIST] CO2 absorbent test Message-ID: <20191010112930.97E4D8C4@m0117457.ppops.net> An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Thu Oct 10 20:29:02 2019 From: personal_submersibles at psubs.org (Sean T. Stevenson via Personal_Submersibles) Date: Fri, 11 Oct 2019 00:29:02 +0000 Subject: [PSUBS-MAILIST] CO2 absorbent test In-Reply-To: <20191010112930.97E4D8C4@m0117457.ppops.net> References: <20191010112930.97E4D8C4@m0117457.ppops.net> Message-ID: You could take a small sample, test it to breakthrough, and scale the result, but the problem with that is that it won't accurately reflect the geometry effect of your scrubber design. As you indicated, it won't have been consumed evenly. The best thing is probably simply to use it until you detect breakthrough, and then change out the media, or call the dive. If you can't do that though, just dump it and replace it with fresh media. Scrubber media is cheap compared to the potential consequences of an exhausted scrubber. Atmospheric air contains about 400 ppm CO2. If your scrubber is not sealed, it will gradually become depleted simply by exposure to air, and this doesn't require active circulation. Gas exchange will be driven by the concentration gradient, though that is a slow process. There are tests you can do if you want to sample the media and send it out for chromatography analysis, but for a small scrubber, such a test is probably more expensive than a media replacement. Sean -------- Original Message -------- On Oct. 10, 2019, 12:29, Brian Cox via Personal_Submersibles wrote: > Hi All, > Does anyone know if there is some sort of test, like maybe a chemical test , to determine the state of some CO2 absorbent. Like how full of CO2 it is. I've ran my scrubber on some of my short test dives but since then the absorbent material has just been sitting in the scrubber . Obviously the fan has not been running all this time and the only real exposed granuals are around the perimeter of the scrubber. It would be nice to know just how spent the absorbent material gets just sitting in the atmosphere . > > Brian -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Thu Oct 10 20:39:07 2019 From: personal_submersibles at psubs.org (Brian Hughes via Personal_Submersibles) Date: Fri, 11 Oct 2019 00:39:07 +0000 Subject: [PSUBS-MAILIST] CO2 absorbent test Message-ID: I designed my personal scrubber to use the disposable canisters that fit anesthesia machines. They're clear so I can observe the color change. An anesthesiologist friend helped me in the design. Some of the inspiration came from a Biopak 45 I had modified for diving as a rebreather. I have a larger one for when carrying a passenger. Brian Get Outlook for Android -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Thu Oct 10 20:52:42 2019 From: personal_submersibles at psubs.org (Sean T. Stevenson via Personal_Submersibles) Date: Fri, 11 Oct 2019 00:52:42 +0000 Subject: [PSUBS-MAILIST] CO2 absorbent test In-Reply-To: References: Message-ID: Be aware that many of the indicating absorbents depend on moisture content for the colour indication, so they work as intended while actively scrubbing, but if you then expose the spent media to dry air and allow it to dry out, the colour can fade. As such, I wouldn't consider colour a conclusive indication of % media consumption, or at least, only as a best-case-scenario indicator. Consider too that all you see is the layer of media against the glass / acrylic / polycarbonate housing. In axial scrubbers, the consumption front advances as more of a cone unless you have really effective diffusion at the inlet and outlet ports. In radial scrubbers, it will either indicate pessimisticly or optimistically depending on the radial flow direction (outside to inside flow will be most efficient). In any case, scrubber duration is probably best estimated by elapsed time under load compared to a practical test result, and of course a sensor to detect breakthrough when it occurs. Sean -------- Original Message -------- On Oct. 10, 2019, 18:39, Brian Hughes via Personal_Submersibles wrote: > I designed my personal scrubber to use the disposable canisters that fit anesthesia machines. They're clear so I can observe the color change. An anesthesiologist friend helped me in the design. Some of the inspiration came from a Biopak 45 I had modified for diving as a rebreather. I have a larger one for when carrying a passenger. > > Brian > > Get [Outlook for Android](https://aka.ms/ghei36) -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Thu Oct 10 20:57:17 2019 From: personal_submersibles at psubs.org (TOM WHENT via Personal_Submersibles) Date: Thu, 10 Oct 2019 18:57:17 -0600 (MDT) Subject: [PSUBS-MAILIST] CO2 absorbent test In-Reply-To: References: Message-ID: <389519573.302033820.1570755437514.JavaMail.zimbra@cds243.dcs.int.inet> An HTML attachment was scrubbed... URL: -------------- next part -------------- With the scuba rebreather that I use,? the radial flow design scrubber seems to be superior to the axial flow. The bed depth and breakthrough seem to be more controlled. I would think a psub scrubber would be much more tolerant since it is only operating at one atmosphere absolute pressure. On an ambient system every atmosphere of pressure multiplies the partial pressure of CO2 in such a way that even a small amount of breakthrough that would go unnoticed at sea level pressure, can have fatal consequences at depth. Get Outlook for Android On Thu, Oct 10, 2019 at 8:39 PM -0400, "Brian Hughes via Personal_Submersibles" wrote: I designed my personal scrubber to use the disposable canisters that fit anesthesia machines. They're clear so I can observe the color change. An anesthesiologist friend helped me in the design. Some of the inspiration came from a Biopak 45 I had modified for diving as a rebreather. I have a larger one for when carrying a passenger. Brian Get Outlook for Android I designed my personal scrubber to use the disposable canisters that fit anesthesia machines. They're clear so I can observe the color change. An anesthesiologist friend helped me in the design. Some of the inspiration came from a Biopak 45 I had modified for diving as a rebreather. I have a larger one for when carrying a passenger. Brian Get Outlook for Android _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles From personal_submersibles at psubs.org Fri Oct 11 00:29:04 2019 From: personal_submersibles at psubs.org (Brian Cox via Personal_Submersibles) Date: Thu, 10 Oct 2019 21:29:04 -0700 Subject: [PSUBS-MAILIST] CO2 absorbent test Message-ID: <20191010212904.97E9CEC6@m0117565.ppops.net> An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Fri Oct 11 05:23:26 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Fri, 11 Oct 2019 09:23:26 +0000 (UTC) Subject: [PSUBS-MAILIST] CO2 absorbent test In-Reply-To: <20191010212904.97E9CEC6@m0117565.ppops.net> References: <20191010212904.97E9CEC6@m0117565.ppops.net> Message-ID: <1320208455.121421.1570785806763@mail.yahoo.com> Brian,My scrubber is real easy to remove, so I just remove it and put it in a bag until the next dive. ?Hank On Thursday, October 10, 2019, 10:29:19 PM MDT, Brian Cox via Personal_Submersibles wrote: Thanks Sean,? ?Need to do more testing . Brian --- personal_submersibles at psubs.org wrote: From: "Sean T. Stevenson via Personal_Submersibles" To: personal_submersibles at psubs.org Subject: Re: [PSUBS-MAILIST] CO2 absorbent test Date: Fri, 11 Oct 2019 00:29:02 +0000 You could take a small sample, test it to breakthrough, and scale the result, but the problem with that is that it won't accurately reflect the geometry effect of your scrubber design. As you indicated, it won't have been consumed evenly. The best thing is probably simply to use it until you detect breakthrough, and then change out the media, or call the dive. If you can't do that though, just dump it and replace it with fresh media. Scrubber media is cheap compared to the potential consequences of an exhausted scrubber. Atmospheric air contains about 400 ppm CO2. If your scrubber is not sealed, it will gradually become depleted simply by exposure to air, and this doesn't require active circulation. Gas exchange will be driven by the concentration gradient, though that is a slow process. There are tests you can do if you want to sample the media and send it out for chromatography analysis, but for a small scrubber, such a test is probably more expensive than a media replacement. Sean -------- Original Message -------- On Oct. 10, 2019, 12:29, Brian Cox via Personal_Submersibles < personal_submersibles at psubs.org> wrote: Hi All,? ? ? ? ? ? ? ? ? Does anyone know if there is some sort of test, like maybe?a chemical test , to determine the state of some CO2 absorbent.? Like how full of CO2 it is.? I've ran my scrubber on some of my short test dives but since then the absorbent material has just been sitting in the scrubber .? Obviously the fan has not been running all this time and the only real exposed granuals are around the perimeter?of the scrubber.? It would be nice to know just how spent the absorbent material gets just sitting in the atmosphere .?? Brian _______________________________________________Personal_Submersibles mailing listPersonal_Submersibles at psubs.orghttp://www.psubs.org/mailman/listinfo.cgi/personal_submersibles_______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Fri Oct 11 10:54:53 2019 From: personal_submersibles at psubs.org (Brian Hughes via Personal_Submersibles) Date: Fri, 11 Oct 2019 14:54:53 +0000 Subject: [PSUBS-MAILIST] CO2 absorbent test Message-ID: Mine is also a variation of what Kittredge used in his K600. Brian Get Outlook for Android -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Fri Oct 11 11:26:04 2019 From: personal_submersibles at psubs.org (Brian Cox via Personal_Submersibles) Date: Fri, 11 Oct 2019 08:26:04 -0700 Subject: [PSUBS-MAILIST] CO2 absorbent test Message-ID: <20191011082604.97E62866@m0117459.ppops.net> An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Sat Oct 12 16:19:02 2019 From: personal_submersibles at psubs.org (Brian Cox via Personal_Submersibles) Date: Sat, 12 Oct 2019 13:19:02 -0700 Subject: [PSUBS-MAILIST] flotation foam Message-ID: <20191012131902.97E47B16@m0117457.ppops.net> An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Sat Oct 12 18:03:43 2019 From: personal_submersibles at psubs.org (Alec Smyth via Personal_Submersibles) Date: Sat, 12 Oct 2019 18:03:43 -0400 Subject: [PSUBS-MAILIST] flotation foam In-Reply-To: <20191012131902.97E47B16@m0117457.ppops.net> References: <20191012131902.97E47B16@m0117457.ppops.net> Message-ID: Hi Brian, David Colombo and I recently did just that - General Plastics have an order minimum and we made a joint purchase. We also learned a bit about their pricing and methods. They do not keep this material in stock, they make it to order. It seems they have two tanks, measuring 18x100 and 24x100. They pour the stuff in to the thickness you need. However, if the other two dimensions are less than 18x100 or 24x100, they cut away the excess *but still charge you for it*. Lets say you ordered a piece that was 12x100x6. They would fill their 18x100 tub 6 inches, and cut the 18" dimension down to your 12", but the amount you pay would be exactly the same as if you had ordered a piece 18x100x12. I would need to do some design math before deciding. It's the R-3315 I'd be interested in. I'd suggest we work out any further details offline so as not to bore everyone with the specifics... Best, Alec On Sat, Oct 12, 2019 at 4:19 PM Brian Cox via Personal_Submersibles < personal_submersibles at psubs.org> wrote: > Hi All, > > Does anyone need any flotation foam? I may need to get > additional foam but I was thinking of getting it from these guys : > https://www.generalplastics.com/products/r-3300 > > I was going to get the 700' foam but I'm pretty sure you have to get a > full 10" x 24" x 100" piece, I'm probably not going to need a whole giant > piece like that so maybe I could split it with somebody. I was looking > at the R-3315 . I'm going to call them on Monday for a quote, as I > remember the price was pretty high but I can't remember the exact quote. > > Brian > > > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Sun Oct 13 07:28:13 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Sun, 13 Oct 2019 11:28:13 +0000 (UTC) Subject: [PSUBS-MAILIST] sub design References: <70755988.847294.1570966093676.ref@mail.yahoo.com> Message-ID: <70755988.847294.1570966093676@mail.yahoo.com> Hi All,I just got a message on FB from a fellow wanting to know where he can find sub design information. ?I remember some of you mentioning a book by Busby? ?or something like that. ?Can someone give me the name of the book.thank youHank -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Sun Oct 13 10:21:25 2019 From: personal_submersibles at psubs.org (Steve McQueen via Personal_Submersibles) Date: Sun, 13 Oct 2019 14:21:25 +0000 Subject: [PSUBS-MAILIST] sub design Message-ID: <4c433c0d77ab2ca81010bf1f38dc37239c71f416@webmail> Hank, try this link for more information. There were a few versions but I think they are all good. https://openlibrary.org/books/OL5014804M/Manned_submersibles [1] Thanks, Steve -----------------------------------------From: "hank pronk via Personal_Submersibles" To: "Personal Submersibles General Discussion" Cc: Sent: Sunday October 13 2019 7:28:13AM Subject: [PSUBS-MAILIST] sub design Hi All,I just got a message on FB from a fellow wanting to know where he can find sub design information. I remember some of you mentioning a book by Busby? or something like that. Can someone give me the name of the book.thank youHank Links: ------ [1] https://openlibrary.org/books/OL5014804M/Manned_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Sun Oct 13 10:27:54 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Sun, 13 Oct 2019 14:27:54 +0000 (UTC) Subject: [PSUBS-MAILIST] sub design In-Reply-To: <4c433c0d77ab2ca81010bf1f38dc37239c71f416@webmail> References: <4c433c0d77ab2ca81010bf1f38dc37239c71f416@webmail> Message-ID: <2078680083.884930.1570976874506@mail.yahoo.com> Steve,Perfect, I will pass it onHank On Sunday, October 13, 2019, 8:21:43 AM MDT, Steve McQueen via Personal_Submersibles wrote: Hank, try this link for more information. There were a few versions but I think they are all good. https://openlibrary.org/books/OL5014804M/Manned_submersibles Thanks,Steve ----------------------------------------- From: "hank pronk via Personal_Submersibles" To: "Personal Submersibles General Discussion" Cc: Sent: Sunday October 13 2019 7:28:13AM Subject: [PSUBS-MAILIST] sub design Hi All,I just got a message on FB from a fellow wanting to know where he can find sub design information. ?I remember some of you mentioning a book by Busby? ?or something like that. ?Can someone give me the name of the book.thank youHank_______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Oct 14 04:06:29 2019 From: personal_submersibles at psubs.org (Alan via Personal_Submersibles) Date: Mon, 14 Oct 2019 21:06:29 +1300 Subject: [PSUBS-MAILIST] sub design In-Reply-To: <2078680083.884930.1570976874506@mail.yahoo.com> References: <4c433c0d77ab2ca81010bf1f38dc37239c71f416@webmail> <2078680083.884930.1570976874506@mail.yahoo.com> Message-ID: Hank, you can pick up "Manned Submersibles" by Frank Busby relatively cheaply. https://www.amazon.com/Manned-Submersibles-R-Frank-Busby/dp/B0006CRZRI $50- which is not bad considering it is 800 pages. I have a hard cover copy as does a lot of other psubbers. The 2 links to it on the Psubs site sent me to a blank page & a scantily clad woman who doesn't look at all like Frank Busby! Alan > On 14/10/2019, at 3:27 AM, hank pronk via Personal_Submersibles wrote: > > Steve, > Perfect, I will pass it on > Hank > > On Sunday, October 13, 2019, 8:21:43 AM MDT, Steve McQueen via Personal_Submersibles wrote: > > > Hank, try this link for more information. There were a few versions but I think they are all good. > https://openlibrary.org/books/OL5014804M/Manned_submersibles > > > > Thanks, Steve > ----------------------------------------- > > From: "hank pronk via Personal_Submersibles" > To: "Personal Submersibles General Discussion" > Cc: > Sent: Sunday October 13 2019 7:28:13AM > Subject: [PSUBS-MAILIST] sub design > > Hi All, > I just got a message on FB from a fellow wanting to know where he can find sub design information. I remember some of you mentioning a book by Busby? or something like that. Can someone give me the name of the book. > thank you > Hank > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Oct 14 05:31:01 2019 From: personal_submersibles at psubs.org (via Personal_Submersibles) Date: Mon, 14 Oct 2019 11:31:01 +0200 Subject: [PSUBS-MAILIST] sub design In-Reply-To: References: <4c433c0d77ab2ca81010bf1f38dc37239c71f416@webmail> <2078680083.884930.1570976874506@mail.yahoo.com> Message-ID: Alan, This is the best link for a online Busby. https://openlibrary.org/books/OL5014804M/Manned_submersibles Br, Emile Van: Personal_Submersibles Namens Alan via Personal_Submersibles Verzonden: maandag 14 oktober 2019 10:06 Aan: Personal Submersibles General Discussion Onderwerp: Re: [PSUBS-MAILIST] sub design Hank, you can pick up "Manned Submersibles" by Frank Busby relatively cheaply. https://www.amazon.com/Manned-Submersibles-R-Frank-Busby/dp/B0006CRZRI $50- which is not bad considering it is 800 pages. I have a hard cover copy as does a lot of other psubbers. The 2 links to it on the Psubs site sent me to a blank page & a scantily clad woman who doesn't look at all like Frank Busby! Alan On 14/10/2019, at 3:27 AM, hank pronk via Personal_Submersibles > wrote: Steve, Perfect, I will pass it on Hank On Sunday, October 13, 2019, 8:21:43 AM MDT, Steve McQueen via Personal_Submersibles > wrote: Hank, try this link for more information. There were a few versions but I think they are all good. https://openlibrary.org/books/OL5014804M/Manned_submersibles Thanks, Steve ----------------------------------------- From: "hank pronk via Personal_Submersibles" To: "Personal Submersibles General Discussion" Cc: Sent: Sunday October 13 2019 7:28:13AM Subject: [PSUBS-MAILIST] sub design Hi All, I just got a message on FB from a fellow wanting to know where he can find sub design information. I remember some of you mentioning a book by Busby? or something like that. Can someone give me the name of the book. thank you Hank _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Oct 14 09:29:32 2019 From: personal_submersibles at psubs.org (Jon Wallace via Personal_Submersibles) Date: Mon, 14 Oct 2019 13:29:32 +0000 (UTC) Subject: [PSUBS-MAILIST] sub design In-Reply-To: References: <4c433c0d77ab2ca81010bf1f38dc37239c71f416@webmail> <2078680083.884930.1570976874506@mail.yahoo.com> Message-ID: <723215995.2108334.1571059772127@mail.yahoo.com> Not any more.? I updated the links.? ?:)Jon On Monday, October 14, 2019, 06:10:18 AM EDT, Alan via Personal_Submersibles wrote: The 2 links to it on the Psubs site sent me to a blank page & a scantily clad woman?who doesn't look at all like Frank Busby!Alan -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Oct 14 15:07:21 2019 From: personal_submersibles at psubs.org (Alan via Personal_Submersibles) Date: Tue, 15 Oct 2019 08:07:21 +1300 Subject: [PSUBS-MAILIST] sub design In-Reply-To: <723215995.2108334.1571059772127@mail.yahoo.com> References: <4c433c0d77ab2ca81010bf1f38dc37239c71f416@webmail> <2078680083.884930.1570976874506@mail.yahoo.com> <723215995.2108334.1571059772127@mail.yahoo.com> Message-ID: <8E051CD8-BD82-4E52-BB94-9E7604436794@yahoo.com> Thanks Jon & Emile, there are some other interesting sub books at that open library site. Alan > On 15/10/2019, at 2:29 AM, Jon Wallace via Personal_Submersibles wrote: > > Not any more. I updated the links. :) > Jon > > On Monday, October 14, 2019, 06:10:18 AM EDT, Alan via Personal_Submersibles wrote: > > > The 2 links to it on the Psubs site sent me to a blank page & a scantily clad woman > who doesn't look at all like Frank Busby! > Alan > > > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Oct 14 16:05:52 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Mon, 14 Oct 2019 20:05:52 +0000 (UTC) Subject: [PSUBS-MAILIST] new dome progress References: <914900930.1447514.1571083553911.ref@mail.yahoo.com> Message-ID: <914900930.1447514.1571083553911@mail.yahoo.com> Hi All,I spent the entire 3 day weekend machining the inside radius of my new dome. ?My radius turning attachment I built is working just fine, and is built to machine the inside and outside radius.Hank -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: thumbnail.jpeg Type: image/jpeg Size: 116643 bytes Desc: not available URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: thumbnail.jpeg Type: image/jpeg Size: 103586 bytes Desc: not available URL: From personal_submersibles at psubs.org Mon Oct 14 17:34:29 2019 From: personal_submersibles at psubs.org (Brian Cox via Personal_Submersibles) Date: Mon, 14 Oct 2019 14:34:29 -0700 Subject: [PSUBS-MAILIST] new dome progress Message-ID: <20191014143429.97E94863@m0117565.ppops.net> An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Oct 14 17:54:18 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Mon, 14 Oct 2019 21:54:18 +0000 (UTC) Subject: [PSUBS-MAILIST] new dome progress In-Reply-To: <20191014143429.97E94863@m0117565.ppops.net> References: <20191014143429.97E94863@m0117565.ppops.net> Message-ID: <1998462004.1487568.1571090058451@mail.yahoo.com> Brian,Yes I made a giant ball turning tool. ?I had to make three of them to get it to work. ?I weighs about 100 lbs and could be heavier. ?I have an electric actuator on it to feed it. ?I also have a speed control on it.Hank On Monday, October 14, 2019, 3:34:42 PM MDT, Brian Cox via Personal_Submersibles wrote: Hank,? ? ?Did you make a special tool for that? Brian --- personal_submersibles at psubs.org wrote: From: hank pronk via Personal_Submersibles To: Personal Submersibles General Discussion Subject: [PSUBS-MAILIST] new dome progress Date: Mon, 14 Oct 2019 20:05:52 +0000 (UTC) Hi All,I spent the entire 3 day weekend machining the inside radius of my new dome. ?My radius turning attachment I built is working just fine, and is built to machine the inside and outside radius.Hank_______________________________________________Personal_Submersibles mailing listPersonal_Submersibles at psubs.orghttp://www.psubs.org/mailman/listinfo.cgi/personal_submersibles_______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Oct 14 23:19:50 2019 From: personal_submersibles at psubs.org (Alan via Personal_Submersibles) Date: Tue, 15 Oct 2019 16:19:50 +1300 Subject: [PSUBS-MAILIST] new dome progress In-Reply-To: <914900930.1447514.1571083553911@mail.yahoo.com> References: <914900930.1447514.1571083553911.ref@mail.yahoo.com> <914900930.1447514.1571083553911@mail.yahoo.com> Message-ID: <804558D0-A7F0-475C-A157-D070505335C8@yahoo.com> A work of art Hank. I see you have cut a shoulder for the jaws to grip to. What is the plan for getting rid of the shoulder? Alan > On 15/10/2019, at 9:05 AM, hank pronk via Personal_Submersibles wrote: > > Hi All, > I spent the entire 3 day weekend machining the inside radius of my new dome. My radius turning attachment I built is working just fine, and is built to machine the inside and outside radius. > Hank > > > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue Oct 15 01:13:07 2019 From: personal_submersibles at psubs.org (Alan via Personal_Submersibles) Date: Tue, 15 Oct 2019 18:13:07 +1300 Subject: [PSUBS-MAILIST] Parker Pressure Regulator Message-ID: <56AFAB50-0B99-4F1B-9015-4DA50F8E655F@yahoo.com> Cliff & Alec, I have just been playing around with my Parker miniature regulator. As Alec noted there is quite a bit of pressure difference between the set pressure & the relieving pressure. I have been turning the pressure up to 20psi & then turning it down, & it takes a lot of turns to bring the pressure down again. Ie. 1 full turn to go to 20psi but 2 full turns to drop pressure back to zero. I am using a cheaper Aluminium version for experimentation & bought the 0-125 psi range, which In hindsight was a mistake as I am not getting the sensitivity I need. What range did you guys buy. I see you can get 0-25 psi. I am running my thruster full of silicone oil & just a few inches of air in the feeder tube from the regulator. Alan -------------- next part -------------- A non-text attachment was scrubbed... Name: image1.JPG Type: image/jpeg Size: 1381006 bytes Desc: not available URL: -------------- next part -------------- From personal_submersibles at psubs.org Tue Oct 15 07:35:17 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Tue, 15 Oct 2019 11:35:17 +0000 (UTC) Subject: [PSUBS-MAILIST] new dome progress In-Reply-To: <804558D0-A7F0-475C-A157-D070505335C8@yahoo.com> References: <914900930.1447514.1571083553911.ref@mail.yahoo.com> <914900930.1447514.1571083553911@mail.yahoo.com> <804558D0-A7F0-475C-A157-D070505335C8@yahoo.com> Message-ID: <230995225.1736270.1571139317605@mail.yahoo.com> Alan,Wes that is the start of a shoulder to grab it, good eye. ?Once the opposite side of the dome is machined I can not grab it in the jaws as you suggest. ? I have made an attachment that replaces my live centre, I guess its still kind of a live centre. ?It is a bearing assembly that pushes against the dome so it is sandwiched in place. ?That will hold it to machine the conical seat. ?I have done this in the past with a live centre but the bearings don't hold up long, so I built one with a large bearing. ?I had to come up with a step by step plan because if I machine in the wrong order I can get trapped with no way to hold it. ?I need a vacuum chuck!Hank On Monday, October 14, 2019, 9:20:16 PM MDT, Alan via Personal_Submersibles wrote: A work of art Hank.I see you have cut a shoulder for the jaws to grip to.What is the plan for getting rid of the shoulder?Alan On 15/10/2019, at 9:05 AM, hank pronk via Personal_Submersibles wrote: Hi All,I spent the entire 3 day weekend machining the inside radius of my new dome. ?My radius turning attachment I built is working just fine, and is built to machine the inside and outside radius.Hank _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue Oct 15 09:56:19 2019 From: personal_submersibles at psubs.org (Cliff Redus via Personal_Submersibles) Date: Tue, 15 Oct 2019 13:56:19 +0000 (UTC) Subject: [PSUBS-MAILIST] Parker Pressure Regulator In-Reply-To: <56AFAB50-0B99-4F1B-9015-4DA50F8E655F@yahoo.com> References: <56AFAB50-0B99-4F1B-9015-4DA50F8E655F@yahoo.com> Message-ID: <1269658014.1785448.1571147779498@mail.yahoo.com> Alan, the version of the pressure reducing - pressure relieving regulator I used on the R300 until recently was Watts Fluidair (Parker subsidiary )Model R364-02BSS/M1.? It has a 0-60 psi range and a 300 psig max pressure. Cliff On Tuesday, October 15, 2019, 12:14:56 AM CDT, Alan via Personal_Submersibles wrote: Cliff & Alec, I have just been playing around with my Parker miniature regulator. As Alec noted there is quite a bit of pressure difference between the set pressure & the relieving pressure. I have been turning the pressure up to 20psi & then turning it down, & it takes a lot of turns to bring the pressure down again. Ie. 1 full turn to go to 20psi but 2 full turns to drop pressure back to zero. I am using a cheaper Aluminium version for experimentation & bought the 0-125 psi range, which In hindsight was a mistake as I am not getting the sensitivity I need. What range did you guys buy. I see you can get 0-25 psi. I am running my thruster full of silicone oil & just a few inches of air in the feeder tube from the regulator. Alan _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue Oct 15 10:25:19 2019 From: personal_submersibles at psubs.org (Alan via Personal_Submersibles) Date: Wed, 16 Oct 2019 03:25:19 +1300 Subject: [PSUBS-MAILIST] new dome progress In-Reply-To: <230995225.1736270.1571139317605@mail.yahoo.com> References: <914900930.1447514.1571083553911.ref@mail.yahoo.com> <914900930.1447514.1571083553911@mail.yahoo.com> <804558D0-A7F0-475C-A157-D070505335C8@yahoo.com> <230995225.1736270.1571139317605@mail.yahoo.com> Message-ID: <768B1645-7846-4CB1-80EF-AAB0623FF3F9@yahoo.com> Hank, hope it goes well. Wonder how hard it would be to make a vacuum chuck! Weld a pipe with a thread on it to a work piece that you machine a slight step in to, glue a ring of rubber to it, fit a rotary union on the threaded end & attach a vacuum pump. Alan > On 16/10/2019, at 12:35 AM, hank pronk via Personal_Submersibles wrote: > > Alan, > Wes that is the start of a shoulder to grab it, good eye. Once the opposite side of the dome is machined I can not grab it in the jaws as you suggest. I have made an attachment that replaces my live centre, I guess its still kind of a live centre. It is a bearing assembly that pushes against the dome so it is sandwiched in place. That will hold it to machine the conical seat. I have done this in the past with a live centre but the bearings don't hold up long, so I built one with a large bearing. I had to come up with a step by step plan because if I machine in the wrong order I can get trapped with no way to hold it. I need a vacuum chuck! > Hank > > On Monday, October 14, 2019, 9:20:16 PM MDT, Alan via Personal_Submersibles wrote: > > > A work of art Hank. > I see you have cut a shoulder for the jaws to grip to. > What is the plan for getting rid of the shoulder? > Alan > >> On 15/10/2019, at 9:05 AM, hank pronk via Personal_Submersibles wrote: >> >> Hi All, >> I spent the entire 3 day weekend machining the inside radius of my new dome. My radius turning attachment I built is working just fine, and is built to machine the inside and outside radius. >> Hank >> >> >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue Oct 15 10:41:00 2019 From: personal_submersibles at psubs.org (Alan via Personal_Submersibles) Date: Wed, 16 Oct 2019 03:41:00 +1300 Subject: [PSUBS-MAILIST] Parker Pressure Regulator In-Reply-To: <1269658014.1785448.1571147779498@mail.yahoo.com> References: <56AFAB50-0B99-4F1B-9015-4DA50F8E655F@yahoo.com> <1269658014.1785448.1571147779498@mail.yahoo.com> Message-ID: Thanks Cliff, wonder if Alec had the same range on the regulator he tested? I will test my motor in a pool over the next 2 weeks with the regulator Pressurising it. I have a mechanical seal in the thruster & it was set up initially with a home made oil compensator. When the pressure in the motor decreased I had a slight leak. I could have even had a vacuum that was pulling the seal open slightly. But no leak so far with 5psi overpressure dialled in on the regulator. I will buy a 0-25 psi regulator & see what pressure differential I get between the set & relieving pressure on that. Alan > On 16/10/2019, at 2:56 AM, Cliff Redus via Personal_Submersibles wrote: > > Alan, the version of the pressure reducing - pressure relieving regulator I used on the R300 until recently was Watts Fluidair (Parker subsidiary )Model R364-02BSS/M1. It has a 0-60 psi range and a 300 psig max pressure. > > Cliff > > On Tuesday, October 15, 2019, 12:14:56 AM CDT, Alan via Personal_Submersibles wrote: > > > Cliff & Alec, > I have just been playing around with my Parker miniature regulator. > As Alec noted there is quite a bit of pressure difference between the set > pressure & the relieving pressure. I have been turning the pressure up > to 20psi & then turning it down, & it takes a lot of turns to bring the pressure > down again. Ie. 1 full turn to go to 20psi but 2 full turns to drop pressure > back to zero. > I am using a cheaper Aluminium version for experimentation & bought the > 0-125 psi range, which In hindsight was a mistake as I am not getting the > sensitivity I need. > What range did you guys buy. I see you can get 0-25 psi. > I am running my thruster full of silicone oil & just a few inches of air in the feeder > tube from the regulator. > Alan > > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue Oct 15 11:31:19 2019 From: personal_submersibles at psubs.org (Alec Smyth via Personal_Submersibles) Date: Tue, 15 Oct 2019 11:31:19 -0400 Subject: [PSUBS-MAILIST] Parker Pressure Regulator In-Reply-To: <56AFAB50-0B99-4F1B-9015-4DA50F8E655F@yahoo.com> References: <56AFAB50-0B99-4F1B-9015-4DA50F8E655F@yahoo.com> Message-ID: I believe I have the same one as Cliff. I'm going to look into swapping it out for a SCUBA second stage, which I think will be both more sensitive and definitely able to handle a larger off-gasing volume. What I'm wondering about is how to connect something that's intended for a human mouth to Swagelok tubing instead. Any suggestions are welcome! Thanks, Alec On Tue, Oct 15, 2019 at 1:14 AM Alan via Personal_Submersibles < personal_submersibles at psubs.org> wrote: > Cliff & Alec, > I have just been playing around with my Parker miniature regulator. > As Alec noted there is quite a bit of pressure difference between the set > pressure & the relieving pressure. I have been turning the pressure up > to 20psi & then turning it down, & it takes a lot of turns to bring the > pressure > down again. Ie. 1 full turn to go to 20psi but 2 full turns to drop > pressure > back to zero. > I am using a cheaper Aluminium version for experimentation & bought the > 0-125 psi range, which In hindsight was a mistake as I am not getting the > sensitivity I need. > What range did you guys buy. I see you can get 0-25 psi. > I am running my thruster full of silicone oil & just a few inches of air > in the feeder > tube from the regulator. > Alan > > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue Oct 15 10:16:40 2019 From: personal_submersibles at psubs.org (Rick Patton via Personal_Submersibles) Date: Tue, 15 Oct 2019 04:16:40 -1000 Subject: [PSUBS-MAILIST] Parker Pressure Regulator In-Reply-To: References: <56AFAB50-0B99-4F1B-9015-4DA50F8E655F@yahoo.com> Message-ID: Alan I see from the picture that you welded a piece of flat bar to the thruster housing. That puts a lot of heat in one area and my concern would be that the housing would warp a little causing the end that comes off with an O ring to not seal properly. I was thinking of welding something to my Minn-Kota for the rear thruster but am hesitating do to my concern of warping the housing and the O ring not making a seal anymore. Have you noticed any leaking problems where the main seal is? Rick On Tue, Oct 15, 2019 at 5:32 AM Alec Smyth via Personal_Submersibles < personal_submersibles at psubs.org> wrote: > I believe I have the same one as Cliff. I'm going to look into swapping it > out for a SCUBA second stage, which I think will be both more sensitive and > definitely able to handle a larger off-gasing volume. What I'm wondering > about is how to connect something that's intended for a human mouth to > Swagelok tubing instead. Any suggestions are welcome! > > Thanks, > Alec > > On Tue, Oct 15, 2019 at 1:14 AM Alan via Personal_Submersibles < > personal_submersibles at psubs.org> wrote: > >> Cliff & Alec, >> I have just been playing around with my Parker miniature regulator. >> As Alec noted there is quite a bit of pressure difference between the set >> pressure & the relieving pressure. I have been turning the pressure up >> to 20psi & then turning it down, & it takes a lot of turns to bring the >> pressure >> down again. Ie. 1 full turn to go to 20psi but 2 full turns to drop >> pressure >> back to zero. >> I am using a cheaper Aluminium version for experimentation & bought the >> 0-125 psi range, which In hindsight was a mistake as I am not getting the >> sensitivity I need. >> What range did you guys buy. I see you can get 0-25 psi. >> I am running my thruster full of silicone oil & just a few inches of air >> in the feeder >> tube from the regulator. >> Alan >> >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue Oct 15 14:55:51 2019 From: personal_submersibles at psubs.org (Alan via Personal_Submersibles) Date: Wed, 16 Oct 2019 07:55:51 +1300 Subject: [PSUBS-MAILIST] Parker Pressure Regulator In-Reply-To: References: <56AFAB50-0B99-4F1B-9015-4DA50F8E655F@yahoo.com> Message-ID: <4E3E73A1-640D-4DC2-8058-939E7E0304F6@yahoo.com> Alec, thanks. I have several scuba regulators on my ambient sub. I used octopus regulators as they are slightly less sensitive so that they don't free flow. As per pictures below, I took off the mouth piece & attached some some clear plastic tubing that I heated & forced on. On the exhausts I fitted & glued PVC bends to keep air on the outer side of the exhaust valve & stop water coming in the system. Not all regulators are the same so you need to Source the most adaptable one. I believe it was Greg that liked the idea of the exhaust extension as he said he had been using regulators & getting a bit of water in his thrusters. I had thought of machining a housing & fitting scuba second stage parts in it; adding a spring to give 5 psi overpressure & using a BCD exhaust valve with an appropriate sized spring in it. I have an Ex military document on compensating motors, & 5 psi is the standard, however there are large variations on that. Commercial compensator pressure varies from around ( roughly) 3 to 9 psi over pressure depending on the oil level / Spring Extension. Is the off gassing volume going to be a problem? In the last 33ft to the surface the volume will double but even if it is still releasing air after you hit the surface it shouldn't be an excessive pressure should it? Karl Stanley was using a first stage regulator with spring removed ( gives ambient pressure) for air compensation & said he just let the air bubble out the thruster seals. Alan > On 16/10/2019, at 4:31 AM, Alec Smyth via Personal_Submersibles wrote: > > I believe I have the same one as Cliff. I'm going to look into swapping it out for a SCUBA second stage, which I think will be both more sensitive and definitely able to handle a larger off-gasing volume. What I'm wondering about is how to connect something that's intended for a human mouth to Swagelok tubing instead. Any suggestions are welcome! > > Thanks, > Alec > >> On Tue, Oct 15, 2019 at 1:14 AM Alan via Personal_Submersibles wrote: >> Cliff & Alec, >> I have just been playing around with my Parker miniature regulator. >> As Alec noted there is quite a bit of pressure difference between the set >> pressure & the relieving pressure. I have been turning the pressure up >> to 20psi & then turning it down, & it takes a lot of turns to bring the pressure >> down again. Ie. 1 full turn to go to 20psi but 2 full turns to drop pressure >> back to zero. >> I am using a cheaper Aluminium version for experimentation & bought the >> 0-125 psi range, which In hindsight was a mistake as I am not getting the >> sensitivity I need. >> What range did you guys buy. I see you can get 0-25 psi. >> I am running my thruster full of silicone oil & just a few inches of air in the feeder >> tube from the regulator. >> Alan >> >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image1.PNG Type: image/png Size: 1242133 bytes Desc: not available URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image2.PNG Type: image/png Size: 1334875 bytes Desc: not available URL: From personal_submersibles at psubs.org Tue Oct 15 15:08:59 2019 From: personal_submersibles at psubs.org (Alan via Personal_Submersibles) Date: Wed, 16 Oct 2019 08:08:59 +1300 Subject: [PSUBS-MAILIST] Parker Pressure Regulator In-Reply-To: References: <56AFAB50-0B99-4F1B-9015-4DA50F8E655F@yahoo.com> Message-ID: <0394A921-F86E-4D9A-A36F-7E9A9F521168@yahoo.com> Hi Rick, it is Aluminium & I believe I got the guy that welded it to weld it with the end housings in to help stop it warping. Can't recall how difficult it was getting the end housings out again. I haven't had them leak yet & they have been under internal pressure for a while now. Alan > On 16/10/2019, at 3:16 AM, Rick Patton via Personal_Submersibles wrote: > > Alan > > I see from the picture that you welded a piece of flat bar to the thruster housing. That puts a lot of heat in one area and my concern would be that the housing would warp a little causing the end that comes off with an O ring to not seal properly. I was thinking of welding something to my Minn-Kota for the rear thruster but am hesitating do to my concern of warping the housing and the O ring not making a seal anymore. Have you noticed any leaking problems where the main seal is? > Rick > >> On Tue, Oct 15, 2019 at 5:32 AM Alec Smyth via Personal_Submersibles wrote: >> I believe I have the same one as Cliff. I'm going to look into swapping it out for a SCUBA second stage, which I think will be both more sensitive and definitely able to handle a larger off-gasing volume. What I'm wondering about is how to connect something that's intended for a human mouth to Swagelok tubing instead. Any suggestions are welcome! >> >> Thanks, >> Alec >> >>> On Tue, Oct 15, 2019 at 1:14 AM Alan via Personal_Submersibles wrote: >>> Cliff & Alec, >>> I have just been playing around with my Parker miniature regulator. >>> As Alec noted there is quite a bit of pressure difference between the set >>> pressure & the relieving pressure. I have been turning the pressure up >>> to 20psi & then turning it down, & it takes a lot of turns to bring the pressure >>> down again. Ie. 1 full turn to go to 20psi but 2 full turns to drop pressure >>> back to zero. >>> I am using a cheaper Aluminium version for experimentation & bought the >>> 0-125 psi range, which In hindsight was a mistake as I am not getting the >>> sensitivity I need. >>> What range did you guys buy. I see you can get 0-25 psi. >>> I am running my thruster full of silicone oil & just a few inches of air in the feeder >>> tube from the regulator. >>> Alan >>> >>> _______________________________________________ >>> Personal_Submersibles mailing list >>> Personal_Submersibles at psubs.org >>> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue Oct 15 23:23:38 2019 From: personal_submersibles at psubs.org (Alec Smyth via Personal_Submersibles) Date: Tue, 15 Oct 2019 23:23:38 -0400 Subject: [PSUBS-MAILIST] Parker Pressure Regulator In-Reply-To: <4E3E73A1-640D-4DC2-8058-939E7E0304F6@yahoo.com> References: <56AFAB50-0B99-4F1B-9015-4DA50F8E655F@yahoo.com> <4E3E73A1-640D-4DC2-8058-939E7E0304F6@yahoo.com> Message-ID: Hi Alan, Great stuff there! I noticed that upon surfacing the compensation pressure was high and eventually dropped, so my assumption is this industrial reg just takes a while to gas off the excess. Certainly I see no sign of a large cross-section valve like all 2nd stages have. I too am shooting for about 5psi, but if possible no more. The reason is that my thrusters are jettisonable and are connected to the compensation lines through a little plastic tube that is designed to pull off if I drop a thruster. I have experimented and found that if I increase the compensation pressure above about 15psi, the hoses blow off. Best, Alec On Tue, Oct 15, 2019 at 2:58 PM Alan via Personal_Submersibles < personal_submersibles at psubs.org> wrote: > Alec, thanks. > I have several scuba regulators on my ambient sub. > I used octopus regulators as they are slightly less sensitive so that they > don't > free flow. As per pictures below, I took off the mouth piece & attached > some > some clear plastic tubing that I heated & forced on. On the exhausts I > fitted > & glued PVC bends to keep air on the outer side of the exhaust valve & stop > water coming in the system. Not all regulators are the same so you need to > Source the most adaptable one. I believe it was Greg that liked the idea > of the > exhaust extension as he said he had been using regulators & getting a bit > of water > in his thrusters. > I had thought of machining a housing & fitting scuba second stage parts in > it; > adding a spring to give 5 psi overpressure & using a BCD exhaust valve with > an appropriate sized spring in it. > I have an Ex military document on compensating motors, & 5 psi is the > standard, > however there are large variations on that. Commercial compensator pressure > varies from around ( roughly) 3 to 9 psi over pressure depending on the > oil level > / Spring Extension. > Is the off gassing volume going to be a problem? In the last 33ft to the > surface > the volume will double but even if it is still releasing air after you hit > the surface > it shouldn't be an excessive pressure should it? > Karl Stanley was using a first stage regulator with spring removed ( gives > ambient > pressure) for air compensation & said he just let the air bubble out the > thruster seals. > Alan > [image: image1.PNG] > > [image: image2.PNG] > On 16/10/2019, at 4:31 AM, Alec Smyth via Personal_Submersibles < > personal_submersibles at psubs.org> wrote: > > I believe I have the same one as Cliff. I'm going to look into swapping it > out for a SCUBA second stage, which I think will be both more sensitive and > definitely able to handle a larger off-gasing volume. What I'm wondering > about is how to connect something that's intended for a human mouth to > Swagelok tubing instead. Any suggestions are welcome! > > Thanks, > Alec > > On Tue, Oct 15, 2019 at 1:14 AM Alan via Personal_Submersibles < > personal_submersibles at psubs.org> wrote: > >> Cliff & Alec, >> I have just been playing around with my Parker miniature regulator. >> As Alec noted there is quite a bit of pressure difference between the set >> pressure & the relieving pressure. I have been turning the pressure up >> to 20psi & then turning it down, & it takes a lot of turns to bring the >> pressure >> down again. Ie. 1 full turn to go to 20psi but 2 full turns to drop >> pressure >> back to zero. >> I am using a cheaper Aluminium version for experimentation & bought the >> 0-125 psi range, which In hindsight was a mistake as I am not getting the >> sensitivity I need. >> What range did you guys buy. I see you can get 0-25 psi. >> I am running my thruster full of silicone oil & just a few inches of air >> in the feeder >> tube from the regulator. >> Alan >> >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image1.PNG Type: image/png Size: 1242133 bytes Desc: not available URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image2.PNG Type: image/png Size: 1334875 bytes Desc: not available URL: From personal_submersibles at psubs.org Wed Oct 16 01:15:13 2019 From: personal_submersibles at psubs.org (Alan via Personal_Submersibles) Date: Wed, 16 Oct 2019 18:15:13 +1300 Subject: [PSUBS-MAILIST] Parker Pressure Regulator In-Reply-To: References: <56AFAB50-0B99-4F1B-9015-4DA50F8E655F@yahoo.com> <4E3E73A1-640D-4DC2-8058-939E7E0304F6@yahoo.com> Message-ID: Thanks Alec, I can see your problem. The Parker regulator I am using at the moment is the R374-O2C. This looks pretty similar to Cliff's R364-02BSS/M1 but with an Aluminium body. I just pulled it apart. You can see the small relieving hole in the brass centre of the diaphragm in attached photo. I had a look at the relieving spring at the bottom of the regulator, thinking I could replace it with a lighter Spring, but it has less power than a ball point pen. You could cut a bit off it & see if it improves things but I think if you are air compensating you have a lot of air going out through that small hole on ascent & that will push the pressure up in the thruster. You could oil compensate with the same set up & only have a fraction of the air to expel, but I guess you are considering the environment! Alan > On 16/10/2019, at 4:23 PM, Alec Smyth via Personal_Submersibles wrote: > > Hi Alan, > > Great stuff there! I noticed that upon surfacing the compensation pressure was high and eventually dropped, so my assumption is this industrial reg just takes a while to gas off the excess. Certainly I see no sign of a large cross-section valve like all 2nd stages have. I too am shooting for about 5psi, but if possible no more. The reason is that my thrusters are jettisonable and are connected to the compensation lines through a little plastic tube that is designed to pull off if I drop a thruster. I have experimented and found that if I increase the compensation pressure above about 15psi, the hoses blow off. > > Best, > Alec > >> On Tue, Oct 15, 2019 at 2:58 PM Alan via Personal_Submersibles wrote: >> Alec, thanks. >> I have several scuba regulators on my ambient sub. >> I used octopus regulators as they are slightly less sensitive so that they don't >> free flow. As per pictures below, I took off the mouth piece & attached some >> some clear plastic tubing that I heated & forced on. On the exhausts I fitted >> & glued PVC bends to keep air on the outer side of the exhaust valve & stop >> water coming in the system. Not all regulators are the same so you need to >> Source the most adaptable one. I believe it was Greg that liked the idea of the >> exhaust extension as he said he had been using regulators & getting a bit of water >> in his thrusters. >> I had thought of machining a housing & fitting scuba second stage parts in it; >> adding a spring to give 5 psi overpressure & using a BCD exhaust valve with >> an appropriate sized spring in it. >> I have an Ex military document on compensating motors, & 5 psi is the standard, >> however there are large variations on that. Commercial compensator pressure >> varies from around ( roughly) 3 to 9 psi over pressure depending on the oil level >> / Spring Extension. >> Is the off gassing volume going to be a problem? In the last 33ft to the surface >> the volume will double but even if it is still releasing air after you hit the surface >> it shouldn't be an excessive pressure should it? >> Karl Stanley was using a first stage regulator with spring removed ( gives ambient >> pressure) for air compensation & said he just let the air bubble out the thruster seals. >> Alan >> >> >> >>> On 16/10/2019, at 4:31 AM, Alec Smyth via Personal_Submersibles wrote: >>> >>> I believe I have the same one as Cliff. I'm going to look into swapping it out for a SCUBA second stage, which I think will be both more sensitive and definitely able to handle a larger off-gasing volume. What I'm wondering about is how to connect something that's intended for a human mouth to Swagelok tubing instead. Any suggestions are welcome! >>> >>> Thanks, >>> Alec >>> >>>> On Tue, Oct 15, 2019 at 1:14 AM Alan via Personal_Submersibles wrote: >>>> Cliff & Alec, >>>> I have just been playing around with my Parker miniature regulator. >>>> As Alec noted there is quite a bit of pressure difference between the set >>>> pressure & the relieving pressure. I have been turning the pressure up >>>> to 20psi & then turning it down, & it takes a lot of turns to bring the pressure >>>> down again. Ie. 1 full turn to go to 20psi but 2 full turns to drop pressure >>>> back to zero. >>>> I am using a cheaper Aluminium version for experimentation & bought the >>>> 0-125 psi range, which In hindsight was a mistake as I am not getting the >>>> sensitivity I need. >>>> What range did you guys buy. I see you can get 0-25 psi. >>>> I am running my thruster full of silicone oil & just a few inches of air in the feeder >>>> tube from the regulator. >>>> Alan >>>> >>>> _______________________________________________ >>>> Personal_Submersibles mailing list >>>> Personal_Submersibles at psubs.org >>>> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >>> _______________________________________________ >>> Personal_Submersibles mailing list >>> Personal_Submersibles at psubs.org >>> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image1.JPG Type: image/jpeg Size: 1225599 bytes Desc: not available URL: From personal_submersibles at psubs.org Wed Oct 16 01:52:36 2019 From: personal_submersibles at psubs.org (Alan via Personal_Submersibles) Date: Wed, 16 Oct 2019 18:52:36 +1300 Subject: [PSUBS-MAILIST] Parker Pressure Regulator In-Reply-To: References: <56AFAB50-0B99-4F1B-9015-4DA50F8E655F@yahoo.com> <4E3E73A1-640D-4DC2-8058-939E7E0304F6@yahoo.com> Message-ID: Alec, just re-assembled my regulator & it now works really well & the relieving function is very sensitive. I got a bit of silicone in it while pulling apart so this probably loosened things up. Alan > On 16/10/2019, at 6:15 PM, Alan via Personal_Submersibles wrote: > > Thanks Alec, I can see your problem. > The Parker regulator I am using at the moment is the R374-O2C. > This looks pretty similar to Cliff's R364-02BSS/M1 but with an Aluminium > body. I just pulled it apart. You can see the small relieving hole in the > brass centre of the diaphragm in attached photo. > I had a look at the relieving spring at the bottom of the regulator, thinking > I could replace it with a lighter Spring, but it has less power than a ball point pen. > You could cut a bit off it & see if it improves things but I think if you are air > compensating you have a lot of air going out through that small hole on > ascent & that will push the pressure up in the thruster. You could oil > compensate with the same set up & only have a fraction of the air to expel, > but I guess you are considering the environment! > Alan > > > > >> On 16/10/2019, at 4:23 PM, Alec Smyth via Personal_Submersibles wrote: >> >> Hi Alan, >> >> Great stuff there! I noticed that upon surfacing the compensation pressure was high and eventually dropped, so my assumption is this industrial reg just takes a while to gas off the excess. Certainly I see no sign of a large cross-section valve like all 2nd stages have. I too am shooting for about 5psi, but if possible no more. The reason is that my thrusters are jettisonable and are connected to the compensation lines through a little plastic tube that is designed to pull off if I drop a thruster. I have experimented and found that if I increase the compensation pressure above about 15psi, the hoses blow off. >> >> Best, >> Alec >> >>> On Tue, Oct 15, 2019 at 2:58 PM Alan via Personal_Submersibles wrote: >>> Alec, thanks. >>> I have several scuba regulators on my ambient sub. >>> I used octopus regulators as they are slightly less sensitive so that they don't >>> free flow. As per pictures below, I took off the mouth piece & attached some >>> some clear plastic tubing that I heated & forced on. On the exhausts I fitted >>> & glued PVC bends to keep air on the outer side of the exhaust valve & stop >>> water coming in the system. Not all regulators are the same so you need to >>> Source the most adaptable one. I believe it was Greg that liked the idea of the >>> exhaust extension as he said he had been using regulators & getting a bit of water >>> in his thrusters. >>> I had thought of machining a housing & fitting scuba second stage parts in it; >>> adding a spring to give 5 psi overpressure & using a BCD exhaust valve with >>> an appropriate sized spring in it. >>> I have an Ex military document on compensating motors, & 5 psi is the standard, >>> however there are large variations on that. Commercial compensator pressure >>> varies from around ( roughly) 3 to 9 psi over pressure depending on the oil level >>> / Spring Extension. >>> Is the off gassing volume going to be a problem? In the last 33ft to the surface >>> the volume will double but even if it is still releasing air after you hit the surface >>> it shouldn't be an excessive pressure should it? >>> Karl Stanley was using a first stage regulator with spring removed ( gives ambient >>> pressure) for air compensation & said he just let the air bubble out the thruster seals. >>> Alan >>> >>> >>> >>>> On 16/10/2019, at 4:31 AM, Alec Smyth via Personal_Submersibles wrote: >>>> >>>> I believe I have the same one as Cliff. I'm going to look into swapping it out for a SCUBA second stage, which I think will be both more sensitive and definitely able to handle a larger off-gasing volume. What I'm wondering about is how to connect something that's intended for a human mouth to Swagelok tubing instead. Any suggestions are welcome! >>>> >>>> Thanks, >>>> Alec >>>> >>>>> On Tue, Oct 15, 2019 at 1:14 AM Alan via Personal_Submersibles wrote: >>>>> Cliff & Alec, >>>>> I have just been playing around with my Parker miniature regulator. >>>>> As Alec noted there is quite a bit of pressure difference between the set >>>>> pressure & the relieving pressure. I have been turning the pressure up >>>>> to 20psi & then turning it down, & it takes a lot of turns to bring the pressure >>>>> down again. Ie. 1 full turn to go to 20psi but 2 full turns to drop pressure >>>>> back to zero. >>>>> I am using a cheaper Aluminium version for experimentation & bought the >>>>> 0-125 psi range, which In hindsight was a mistake as I am not getting the >>>>> sensitivity I need. >>>>> What range did you guys buy. I see you can get 0-25 psi. >>>>> I am running my thruster full of silicone oil & just a few inches of air in the feeder >>>>> tube from the regulator. >>>>> Alan >>>>> >>>>> _______________________________________________ >>>>> Personal_Submersibles mailing list >>>>> Personal_Submersibles at psubs.org >>>>> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >>>> _______________________________________________ >>>> Personal_Submersibles mailing list >>>> Personal_Submersibles at psubs.org >>>> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >>> _______________________________________________ >>> Personal_Submersibles mailing list >>> Personal_Submersibles at psubs.org >>> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Wed Oct 16 07:15:37 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Wed, 16 Oct 2019 11:15:37 +0000 (UTC) Subject: [PSUBS-MAILIST] annealing fixture References: <672273731.2298380.1571224537193.ref@mail.yahoo.com> Message-ID: <672273731.2298380.1571224537193@mail.yahoo.com> Hi All,I am trying to determine the best way to support my new dome when I anneal it. ?I am concerned it will deform because when I did the first heat treatment required prior to machining, the block bent. ?I deliberately ?supported the 4 inch thick block at each corner to see how it would react. ?The bent block is not a problem, in fact it helps me. ?I need some guidance with this so I don't ruin 50 hours of machining.If I can't find the information, I plan to test different ideas with old ports the same thickness in the oven.Hank -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Wed Oct 16 12:16:50 2019 From: personal_submersibles at psubs.org (Brian Cox via Personal_Submersibles) Date: Wed, 16 Oct 2019 09:16:50 -0700 Subject: [PSUBS-MAILIST] annealing fixture Message-ID: <20191016091650.97E653F3@m0117164.ppops.net> An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Wed Oct 16 13:59:07 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Wed, 16 Oct 2019 11:59:07 -0600 Subject: [PSUBS-MAILIST] annealing fixture In-Reply-To: <20191016091650.97E653F3@m0117164.ppops.net> References: <20191016091650.97E653F3@m0117164.ppops.net> Message-ID: <0200D90C-03E3-483B-8360-1C16C4826FC5@yahoo.ca> Brian, yes it?s polished but only mildly. I still have to finish to 2000 grit, then polish. I only had 1500 grit on hand Hank Sent from my iPhone > On Oct 16, 2019, at 10:16 AM, Brian Cox via Personal_Submersibles wrote: > > Hank, I was checking out your photos from your machining, it was kind of hard for me to figure out exactly how you are doing it but i noticed how clear everything is, you must have had to do some polishing correct? When I was machining my viewports ( the sides) I had to polish to get a clear finish. > > Did you check into the glass? > > Brian > > > > --- personal_submersibles at psubs.org wrote: > > From: hank pronk via Personal_Submersibles > To: Personal Submersibles General Discussion > Subject: [PSUBS-MAILIST] annealing fixture > Date: Wed, 16 Oct 2019 11:15:37 +0000 (UTC) > > Hi All, > I am trying to determine the best way to support my new dome when I anneal it. I am concerned it will deform because when I did the first heat treatment required prior to machining, the block bent. I deliberately supported the 4 inch thick block at each corner to see how it would react. The bent block is not a problem, in fact it helps me. I need some guidance with this so I don't ruin 50 hours of machining. > If I can't find the information, I plan to test different ideas with old ports the same thickness in the oven. > Hank > _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Sat Oct 19 12:09:33 2019 From: personal_submersibles at psubs.org (Rick Patton via Personal_Submersibles) Date: Sat, 19 Oct 2019 06:09:33 -1000 Subject: [PSUBS-MAILIST] Hot wire Message-ID: <101D0B8D-603D-4560-B1F7-9B9376E02E5D@gmail.com> Used welding machine to create heat for a hot wire and worked great! -------------- next part -------------- Sent from my iPhone From personal_submersibles at psubs.org Sat Oct 19 14:04:00 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Sat, 19 Oct 2019 18:04:00 +0000 (UTC) Subject: [PSUBS-MAILIST] Hot wire In-Reply-To: <101D0B8D-603D-4560-B1F7-9B9376E02E5D@gmail.com> References: <101D0B8D-603D-4560-B1F7-9B9376E02E5D@gmail.com> Message-ID: <2027493939.3978905.1571508240057@mail.yahoo.com> Rick,Wire feed?Hank On Saturday, October 19, 2019, 10:09:47 AM MDT, Rick Patton via Personal_Submersibles wrote: Used welding machine to create heat for a hot wire and worked great! Sent from my iPhone_______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Sat Oct 19 14:42:10 2019 From: personal_submersibles at psubs.org (Brian Cox via Personal_Submersibles) Date: Sat, 19 Oct 2019 11:42:10 -0700 Subject: [PSUBS-MAILIST] please print Message-ID: <20191019114210.DFFC9952@m0117568.ppops.net> An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: Jepsen_Thomas_My_Sisters_Telegraphic_Women_in_the_Telegraph_Office_1846-1950.pdf Type: application/pdf Size: 1125218 bytes Desc: not available URL: From personal_submersibles at psubs.org Sat Oct 19 14:46:15 2019 From: personal_submersibles at psubs.org (Brian Cox via Personal_Submersibles) Date: Sat, 19 Oct 2019 11:46:15 -0700 Subject: [PSUBS-MAILIST] please print Message-ID: <20191019114615.DFFC9949@m0117568.ppops.net> An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Sat Oct 19 08:27:38 2019 From: personal_submersibles at psubs.org (Rick Patton via Personal_Submersibles) Date: Sat, 19 Oct 2019 02:27:38 -1000 Subject: [PSUBS-MAILIST] Hot wire In-Reply-To: <2027493939.3978905.1571508240057@mail.yahoo.com> References: <101D0B8D-603D-4560-B1F7-9B9376E02E5D@gmail.com> <2027493939.3978905.1571508240057@mail.yahoo.com> Message-ID: No. I have a spool of very small ss wire so I cut off a 6' piece and hooked one end with the ground on it stationary so I could pull against it and it wouldn't move and then hooked the other end to the electrode then pulled it tight and then pushed the wire slowly down cutting the Styrofoam. I used a stick machine and had it turned down so the wire was getting about 50 amps or so I believe. Worked great! Rick On Sat, Oct 19, 2019 at 8:05 AM hank pronk via Personal_Submersibles < personal_submersibles at psubs.org> wrote: > Rick, > Wire feed? > Hank > > On Saturday, October 19, 2019, 10:09:47 AM MDT, Rick Patton via > Personal_Submersibles wrote: > > > Used welding machine to create heat for a hot wire and worked great! > > > > Sent from my iPhone_______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Sun Oct 20 13:20:51 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Sun, 20 Oct 2019 17:20:51 +0000 (UTC) Subject: [PSUBS-MAILIST] new dome for E3000 References: <2135885415.4220280.1571592051468.ref@mail.yahoo.com> Message-ID: <2135885415.4220280.1571592051468@mail.yahoo.com> Mission accomplished, my dome is out of the lathe and ready for machine polishing. ?Many thanks to River for helping with drawings and design. ?After polishing it will go into the oven for annealing. ?I am making some small modifications to the oven based on conversations with experts in the field.Hank -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: thumbnail.jpeg Type: image/jpeg Size: 107518 bytes Desc: not available URL: From personal_submersibles at psubs.org Sun Oct 20 14:58:26 2019 From: personal_submersibles at psubs.org (Alan via Personal_Submersibles) Date: Mon, 21 Oct 2019 07:58:26 +1300 Subject: [PSUBS-MAILIST] new dome for E3000 In-Reply-To: <2135885415.4220280.1571592051468@mail.yahoo.com> References: <2135885415.4220280.1571592051468.ref@mail.yahoo.com> <2135885415.4220280.1571592051468@mail.yahoo.com> Message-ID: Great to see Hank, I am sure you are half way there to pressing your own domes. Alan > On 21/10/2019, at 6:20 AM, hank pronk via Personal_Submersibles wrote: > > Mission accomplished, my dome is out of the lathe and ready for machine polishing. Many thanks to River for helping with drawings and design. > After polishing it will go into the oven for annealing. I am making some small modifications to the oven based on conversations with experts in the field. > Hank > > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Sun Oct 20 15:24:21 2019 From: personal_submersibles at psubs.org (Brian Cox via Personal_Submersibles) Date: Sun, 20 Oct 2019 12:24:21 -0700 Subject: [PSUBS-MAILIST] new dome for E3000 Message-ID: <20191020122421.DFFA72CD@m0117460.ppops.net> An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Sun Oct 20 15:45:19 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Sun, 20 Oct 2019 13:45:19 -0600 Subject: [PSUBS-MAILIST] new dome for E3000 In-Reply-To: <20191020122421.DFFA72CD@m0117460.ppops.net> References: <20191020122421.DFFA72CD@m0117460.ppops.net> Message-ID: <611EC8CE-A5B2-4439-85EF-9F61978A6DF4@yahoo.ca> Brian yes it was a thick slab Hank Sent from my iPhone > On Oct 20, 2019, at 1:24 PM, Brian Cox via Personal_Submersibles wrote: > > Hank, Did that start as one thick square piece ? > > Brian > > > --- personal_submersibles at psubs.org wrote: > > From: hank pronk via Personal_Submersibles > To: Personal Submersibles General Discussion > Subject: [PSUBS-MAILIST] new dome for E3000 > Date: Sun, 20 Oct 2019 17:20:51 +0000 (UTC) > > Mission accomplished, my dome is out of the lathe and ready for machine polishing. Many thanks to River for helping with drawings and design. > After polishing it will go into the oven for annealing. I am making some small modifications to the oven based on conversations with experts in the field. > Hank > _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Sun Oct 20 15:59:03 2019 From: personal_submersibles at psubs.org (Hugh Fulton via Personal_Submersibles) Date: Mon, 21 Oct 2019 08:59:03 +1300 Subject: [PSUBS-MAILIST] new dome for E3000 In-Reply-To: <2135885415.4220280.1571592051468@mail.yahoo.com> References: <2135885415.4220280.1571592051468.ref@mail.yahoo.com> <2135885415.4220280.1571592051468@mail.yahoo.com> Message-ID: <064001d58780$d54dd870$7fe98950$@gmail.com> Hank, Is there anything that you won?t tackle? You never cease to amaze me. Have you got a photo somewhere of your turning mechanism for getting the radius? I paid about $10,000 each for mine to be done but they did get Lloyd certs. Hugh From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of hank pronk via Personal_Submersibles Sent: Monday, 21 October 2019 6:21 AM To: Personal Submersibles General Discussion Subject: [PSUBS-MAILIST] new dome for E3000 Mission accomplished, my dome is out of the lathe and ready for machine polishing. Many thanks to River for helping with drawings and design. After polishing it will go into the oven for annealing. I am making some small modifications to the oven based on conversations with experts in the field. Hank -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Sun Oct 20 17:22:28 2019 From: personal_submersibles at psubs.org (Alec Smyth via Personal_Submersibles) Date: Sun, 20 Oct 2019 17:22:28 -0400 Subject: [PSUBS-MAILIST] new dome for E3000 In-Reply-To: <2135885415.4220280.1571592051468@mail.yahoo.com> References: <2135885415.4220280.1571592051468.ref@mail.yahoo.com> <2135885415.4220280.1571592051468@mail.yahoo.com> Message-ID: Man, that is NOT easy. Hats off to you, Hank! Alec On Sun, Oct 20, 2019 at 1:22 PM hank pronk via Personal_Submersibles < personal_submersibles at psubs.org> wrote: > Mission accomplished, my dome is out of the lathe and ready for machine > polishing. Many thanks to River for helping with drawings and design. > After polishing it will go into the oven for annealing. I am making some > small modifications to the oven based on conversations with experts in the > field. > Hank > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Sun Oct 20 19:06:50 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Sun, 20 Oct 2019 23:06:50 +0000 (UTC) Subject: [PSUBS-MAILIST] new dome for E3000 In-Reply-To: <064001d58780$d54dd870$7fe98950$@gmail.com> References: <2135885415.4220280.1571592051468.ref@mail.yahoo.com> <2135885415.4220280.1571592051468@mail.yahoo.com> <064001d58780$d54dd870$7fe98950$@gmail.com> Message-ID: <1831628690.4337730.1571612810807@mail.yahoo.com> Hugh,?The short answer is NO. If I think I can do it, I will try. ? ?I posed a short video of the radius cutter working on Face Book. ?I don't have any assembled pictures of the Radius cutter and it has to be disassembled to remove it from the lathe. ?It's just a giant ball turner with an electric actuator with speed control.Thank you for the kind words.Hank On Sunday, October 20, 2019, 1:59:26 PM MDT, Hugh Fulton via Personal_Submersibles wrote: #yiv9329793544 #yiv9329793544 -- _filtered #yiv9329793544 {font-family:Calibri;panose-1:2 15 5 2 2 2 4 3 2 4;} _filtered #yiv9329793544 {font-family:Tahoma;panose-1:2 11 6 4 3 5 4 4 2 4;} _filtered #yiv9329793544 {}#yiv9329793544 #yiv9329793544 p.yiv9329793544MsoNormal, #yiv9329793544 li.yiv9329793544MsoNormal, #yiv9329793544 div.yiv9329793544MsoNormal {margin:0cm;margin-bottom:.0001pt;font-size:12.0pt;font-family:New;}#yiv9329793544 a:link, #yiv9329793544 span.yiv9329793544MsoHyperlink {color:blue;text-decoration:underline;}#yiv9329793544 a:visited, #yiv9329793544 span.yiv9329793544MsoHyperlinkFollowed {color:purple;text-decoration:underline;}#yiv9329793544 span.yiv9329793544EmailStyle17 {color:#1F497D;}#yiv9329793544 .yiv9329793544MsoChpDefault {font-size:10.0pt;} _filtered #yiv9329793544 {margin:72.0pt 72.0pt 72.0pt 72.0pt;}#yiv9329793544 div.yiv9329793544WordSection1 {}#yiv9329793544 Hank, Is there anything that you won?t tackle?? You never cease to amaze me.? Have you got a photo somewhere of your turning mechanism for getting the radius? I paid about $10,000 each for mine to be done but they did get Lloyd certs.?? Hugh ? From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of hank pronk via Personal_Submersibles Sent: Monday, 21 October 2019 6:21 AM To: Personal Submersibles General Discussion Subject: [PSUBS-MAILIST] new dome for E3000 ? Mission accomplished, my dome is out of the lathe and ready for machine polishing. ?Many thanks to River for helping with drawings and design. ? After polishing it will go into the oven for annealing. ?I am making some small modifications to the oven based on conversations with experts in the field. Hank _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Sun Oct 20 20:18:33 2019 From: personal_submersibles at psubs.org (Hugh Fulton via Personal_Submersibles) Date: Mon, 21 Oct 2019 13:18:33 +1300 Subject: [PSUBS-MAILIST] new dome for E3000 In-Reply-To: <1831628690.4337730.1571612810807@mail.yahoo.com> References: <2135885415.4220280.1571592051468.ref@mail.yahoo.com> <2135885415.4220280.1571592051468@mail.yahoo.com> <064001d58780$d54dd870$7fe98950$@gmail.com> <1831628690.4337730.1571612810807@mail.yahoo.com> Message-ID: <068101d587a5$155cbb10$40163130$@gmail.com> What is the facebook address? I love innovation. Thanks, Hugh From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of hank pronk via Personal_Submersibles Sent: Monday, 21 October 2019 12:07 PM To: Hugh Fulton via Personal_Submersibles Subject: Re: [PSUBS-MAILIST] new dome for E3000 Hugh, The short answer is NO. If I think I can do it, I will try. I posed a short video of the radius cutter working on Face Book. I don't have any assembled pictures of the Radius cutter and it has to be disassembled to remove it from the lathe. It's just a giant ball turner with an electric actuator with speed control. Thank you for the kind words. Hank On Sunday, October 20, 2019, 1:59:26 PM MDT, Hugh Fulton via Personal_Submersibles wrote: Hank, Is there anything that you won?t tackle? You never cease to amaze me. Have you got a photo somewhere of your turning mechanism for getting the radius? I paid about $10,000 each for mine to be done but they did get Lloyd certs. Hugh From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of hank pronk via Personal_Submersibles Sent: Monday, 21 October 2019 6:21 AM To: Personal Submersibles General Discussion Subject: [PSUBS-MAILIST] new dome for E3000 Mission accomplished, my dome is out of the lathe and ready for machine polishing. Many thanks to River for helping with drawings and design. After polishing it will go into the oven for annealing. I am making some small modifications to the oven based on conversations with experts in the field. Hank _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Sun Oct 20 21:03:25 2019 From: personal_submersibles at psubs.org (Brian Cox via Personal_Submersibles) Date: Sun, 20 Oct 2019 18:03:25 -0700 Subject: [PSUBS-MAILIST] new dome for E3000 Message-ID: <20191020180325.DFF8E572@m0117457.ppops.net> An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Sun Oct 20 21:03:49 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Mon, 21 Oct 2019 01:03:49 +0000 (UTC) Subject: [PSUBS-MAILIST] new dome for E3000 In-Reply-To: <068101d587a5$155cbb10$40163130$@gmail.com> References: <2135885415.4220280.1571592051468.ref@mail.yahoo.com> <2135885415.4220280.1571592051468@mail.yahoo.com> <064001d58780$d54dd870$7fe98950$@gmail.com> <1831628690.4337730.1571612810807@mail.yahoo.com> <068101d587a5$155cbb10$40163130$@gmail.com> Message-ID: <1483851001.4348872.1571619829325@mail.yahoo.com> Hi Hugh,Just search my name, I have a few video's related to this project on my time line.Hank On Sunday, October 20, 2019, 6:18:56 PM MDT, Hugh Fulton via Personal_Submersibles wrote: #yiv9796268802 #yiv9796268802 -- _filtered #yiv9796268802 {font-family:Calibri;panose-1:2 15 5 2 2 2 4 3 2 4;} _filtered #yiv9796268802 {font-family:Tahoma;panose-1:2 11 6 4 3 5 4 4 2 4;} _filtered #yiv9796268802 {} _filtered #yiv9796268802 {font-family:New;panose-1:0 0 0 0 0 0 0 0 0 0;}#yiv9796268802 #yiv9796268802 p.yiv9796268802MsoNormal, #yiv9796268802 li.yiv9796268802MsoNormal, #yiv9796268802 div.yiv9796268802MsoNormal {margin:0cm;margin-bottom:.0001pt;font-size:12.0pt;font-family:New;}#yiv9796268802 a:link, #yiv9796268802 span.yiv9796268802MsoHyperlink {color:blue;text-decoration:underline;}#yiv9796268802 a:visited, #yiv9796268802 span.yiv9796268802MsoHyperlinkFollowed {color:purple;text-decoration:underline;}#yiv9796268802 p.yiv9796268802MsoAcetate, #yiv9796268802 li.yiv9796268802MsoAcetate, #yiv9796268802 div.yiv9796268802MsoAcetate {margin:0cm;margin-bottom:.0001pt;font-size:8.0pt;}#yiv9796268802 p.yiv9796268802msonormal, #yiv9796268802 li.yiv9796268802msonormal, #yiv9796268802 div.yiv9796268802msonormal {margin-right:0cm;margin-left:0cm;font-size:12.0pt;font-family:New;}#yiv9796268802 p.yiv9796268802msochpdefault, #yiv9796268802 li.yiv9796268802msochpdefault, #yiv9796268802 div.yiv9796268802msochpdefault {margin-right:0cm;margin-left:0cm;font-size:12.0pt;font-family:New;}#yiv9796268802 span.yiv9796268802msohyperlink {}#yiv9796268802 span.yiv9796268802msohyperlinkfollowed {}#yiv9796268802 span.yiv9796268802emailstyle17 {}#yiv9796268802 p.yiv9796268802msonormal1, #yiv9796268802 li.yiv9796268802msonormal1, #yiv9796268802 div.yiv9796268802msonormal1 {margin:0cm;margin-bottom:.0001pt;font-size:12.0pt;}#yiv9796268802 span.yiv9796268802msohyperlink1 {color:blue;text-decoration:underline;}#yiv9796268802 span.yiv9796268802msohyperlinkfollowed1 {color:purple;text-decoration:underline;}#yiv9796268802 span.yiv9796268802emailstyle171 {color:#1F497D;}#yiv9796268802 p.yiv9796268802msochpdefault1, #yiv9796268802 li.yiv9796268802msochpdefault1, #yiv9796268802 div.yiv9796268802msochpdefault1 {margin-right:0cm;margin-left:0cm;font-size:10.0pt;font-family:New;}#yiv9796268802 span.yiv9796268802EmailStyle27 {color:#1F497D;}#yiv9796268802 span.yiv9796268802BalloonTextChar {}#yiv9796268802 .yiv9796268802MsoChpDefault {font-size:10.0pt;} _filtered #yiv9796268802 {margin:72.0pt 72.0pt 72.0pt 72.0pt;}#yiv9796268802 div.yiv9796268802WordSection1 {}#yiv9796268802 What is the facebook address?? I love innovation. Thanks, Hugh ? From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of hank pronk via Personal_Submersibles Sent: Monday, 21 October 2019 12:07 PM To: Hugh Fulton via Personal_Submersibles Subject: Re: [PSUBS-MAILIST] new dome for E3000 ? Hugh,? The short answer is NO. If I think I can do it, I will try. ? ?I posed a short video of the radius cutter working on Face Book. ?I don't have any assembled pictures of the Radius cutter and it has to be disassembled to remove it from the lathe. ?It's just a giant ball turner with an electric actuator with speed control. Thank you for the kind words. Hank ? On Sunday, October 20, 2019, 1:59:26 PM MDT, Hugh Fulton via Personal_Submersibles wrote: ? ? Hank, Is there anything that you won?t tackle?? You never cease to amaze me.? Have you got a photo somewhere of your turning mechanism for getting the radius? I paid about $10,000 each for mine to be done but they did get Lloyd certs.?? Hugh ? From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of hank pronk via Personal_Submersibles Sent: Monday, 21 October 2019 6:21 AM To: Personal Submersibles General Discussion Subject: [PSUBS-MAILIST] new dome for E3000 ? Mission accomplished, my dome is out of the lathe and ready for machine polishing. ?Many thanks to River for helping with drawings and design. ? After polishing it will go into the oven for annealing. ?I am making some small modifications to the oven based on conversations with experts in the field. Hank _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Oct 21 06:26:12 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Mon, 21 Oct 2019 10:26:12 +0000 (UTC) Subject: [PSUBS-MAILIST] new dome for E3000 In-Reply-To: <20191020180325.DFF8E572@m0117457.ppops.net> References: <20191020180325.DFF8E572@m0117457.ppops.net> Message-ID: <1620776609.4491904.1571653572248@mail.yahoo.com> Brian,Yes my lathe has feeds but the radius tool swings so it is completely separate from the lathe.Hank On Sunday, October 20, 2019, 7:03:37 PM MDT, Brian Cox via Personal_Submersibles wrote: Hank,? ? ? ? ? Doesn't your lathe have an auto feed ?? Brian --- personal_submersibles at psubs.org wrote: From: hank pronk via Personal_Submersibles To: Hugh Fulton via Personal_Submersibles Subject: Re: [PSUBS-MAILIST] new dome for E3000 Date: Sun, 20 Oct 2019 23:06:50 +0000 (UTC) Hugh,?The short answer is NO. If I think I can do it, I will try. ? ?I posed a short video of the radius cutter working on Face Book. ?I don't have any assembled pictures of the Radius cutter and it has to be disassembled to remove it from the lathe. ?It's just a giant ball turner with an electric actuator with speed control.Thank you for the kind words.Hank On Sunday, October 20, 2019, 1:59:26 PM MDT, Hugh Fulton via Personal_Submersibles wrote: Hank, Is there anything that you won?t tackle?? You never cease to amaze me.? Have you got a photo somewhere of your turning mechanism for getting the radius? I paid about $10,000 each for mine to be done but they did get Lloyd certs.?? Hugh ? From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of hank pronk via Personal_Submersibles Sent: Monday, 21 October 2019 6:21 AM To: Personal Submersibles General Discussion Subject: [PSUBS-MAILIST] new dome for E3000 ? Mission accomplished, my dome is out of the lathe and ready for machine polishing. ?Many thanks to River for helping with drawings and design. ? After polishing it will go into the oven for annealing. ?I am making some small modifications to the oven based on conversations with experts in the field. Hank _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________Personal_Submersibles mailing listPersonal_Submersibles at psubs.orghttp://www.psubs.org/mailman/listinfo.cgi/personal_submersibles_______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Thu Oct 24 14:21:01 2019 From: personal_submersibles at psubs.org (David Colombo via Personal_Submersibles) Date: Thu, 24 Oct 2019 11:21:01 -0700 Subject: [PSUBS-MAILIST] Dome Design Message-ID: Hi Emile, could you contact me via email about dome design and fabrication. Seaquestor at gmail.com Best Regards, David Colombo 804 College Ave Santa Rosa, CA. 95404 (707) 536-1424 www.SeaQuestor.com -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Sat Oct 26 00:14:45 2019 From: personal_submersibles at psubs.org (Brian Cox via Personal_Submersibles) Date: Fri, 25 Oct 2019 21:14:45 -0700 Subject: [PSUBS-MAILIST] Esmae test Message-ID: <20191025211445.3D67A2@m0117568.ppops.net> An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Sat Oct 26 01:59:05 2019 From: personal_submersibles at psubs.org (Alan via Personal_Submersibles) Date: Sat, 26 Oct 2019 18:59:05 +1300 Subject: [PSUBS-MAILIST] Esmae test In-Reply-To: <20191025211445.3D67A2@m0117568.ppops.net> References: <20191025211445.3D67A2@m0117568.ppops.net> Message-ID: <3E2FF78F-45D2-47CD-B5C8-BBB2F4A7DAA9@yahoo.com> Thanks Brian, you are getting there! The shape of it is looking a lot better. I think I have previously suggested that you take a number of floats like 20 litre containers that have handles on them for tethering, & any type of weight. That way you can sort out exactly what weight & buoyancy you need & where you need it on your next outing. Cheers Alan > On 26/10/2019, at 5:14 PM, Brian Cox via Personal_Submersibles wrote: > > Hi All , > Another test down at the boatyard, I removed a lot of weight from the top of my sub, extra structure that was not needed, and then added that amount of weight in lead to the keel. Seems very stable now, so that is a good thing. Also added buoyancy pods to the sides and up front underneath my shell. Still not enough buoyancy up front, had a friend try and pull up the nose with a rope to determine just how much will be needed, but he was unable to pull the nose up so probably more that 200 lbs of lift will be needed, as well as any weight I can shed . > > I also reworked a few other things, replaced vinyl tubing for electrical with better type of material, reworked my hatch dogs, and put some holes in the top of my shell ( that was hard to do after all that work ;-) ) > > > https://www.youtube.com/watch?v=v-AGxWBEk_A > > Cheers, > > Brian > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Sat Oct 26 08:30:07 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Sat, 26 Oct 2019 12:30:07 +0000 (UTC) Subject: [PSUBS-MAILIST] Esmae test In-Reply-To: <3E2FF78F-45D2-47CD-B5C8-BBB2F4A7DAA9@yahoo.com> References: <20191025211445.3D67A2@m0117568.ppops.net> <3E2FF78F-45D2-47CD-B5C8-BBB2F4A7DAA9@yahoo.com> Message-ID: <1536325034.2498271.1572093007463@mail.yahoo.com> Brian,It is taking form nicely and I have done just like Alan says. ?Bring a truck load of pails or whatever and tie them on. ?You are getting closer!Hank On Friday, October 25, 2019, 11:59:26 PM MDT, Alan via Personal_Submersibles wrote: Thanks Brian,you are getting there!The shape of it is looking a lot better.?I think I have previously suggested that you take a number of floats like 20 litrecontainers that have handles on them for tethering, & any type of weight.That way you can sort out exactly what weight & buoyancy you need &where you need it on your next outing.Cheers Alan? On 26/10/2019, at 5:14 PM, Brian Cox via Personal_Submersibles wrote: Hi All ,? ? ? ? ? ? ? ? ? Another test down at the boatyard,? I removed a lot of weight from the top of my sub, extra structure that was not needed, and then added that amount of weight in lead to the keel.? Seems very stable now, so that is a good thing.? Also added buoyancy?pods to the sides and up front underneath my shell.? ?Still not enough buoyancy up front, had a friend try and pull up the nose with a rope to determine just how much will be needed, but he was unable to pull the nose up so probably more that 200 lbs of lift will be needed, as well as any weight I can shed . ? I also reworked a few other things,? replaced vinyl tubing for electrical with better type of material,? reworked my hatch dogs, and put some holes in the top of my shell ( that was hard to do after all that work ;-)? )??? https://www.youtube.com/watch?v=v-AGxWBEk_A Cheers, Brian _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Sat Oct 26 08:34:58 2019 From: personal_submersibles at psubs.org (Alec Smyth via Personal_Submersibles) Date: Sat, 26 Oct 2019 08:34:58 -0400 Subject: [PSUBS-MAILIST] Esmae test In-Reply-To: <20191025211445.3D67A2@m0117568.ppops.net> References: <20191025211445.3D67A2@m0117568.ppops.net> Message-ID: The buoyancy is looking tantalizingly close! I think next time out you'll probably be dialed in. Best, Alec On Sat, Oct 26, 2019 at 12:15 AM Brian Cox via Personal_Submersibles < personal_submersibles at psubs.org> wrote: > Hi All , > Another test down at the boatyard, I removed a lot of > weight from the top of my sub, extra structure that was not needed, and > then added that amount of weight in lead to the keel. Seems very stable > now, so that is a good thing. Also added buoyancy pods to the sides and up > front underneath my shell. Still not enough buoyancy up front, had a > friend try and pull up the nose with a rope to determine just how much will > be needed, but he was unable to pull the nose up so probably more that 200 > lbs of lift will be needed, as well as any weight I can shed . > > I also reworked a few other things, replaced vinyl tubing for > electrical with better type of material, reworked my hatch dogs, and put > some holes in the top of my shell ( that was hard to do after all that work > ;-) ) > > > https://www.youtube.com/watch?v=v-AGxWBEk_A > > Cheers, > > Brian > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Sat Oct 26 18:58:28 2019 From: personal_submersibles at psubs.org (Brian Cox via Personal_Submersibles) Date: Sat, 26 Oct 2019 15:58:28 -0700 Subject: [PSUBS-MAILIST] Esmae test Message-ID: <20191026155828.3A3966@m0117458.ppops.net> An HTML attachment was scrubbed... URL: