[PSUBS-MAILIST] Group Help Request

Mon Oct 28 12:43:49 EDT 2013

David,

Thats spectacular, thanks!

Joe

________________________________
From: David Colombo <seaquestor at gmail.com>
To: Personal Submersibles General Discussion <personal_submersibles at psubs.org> 
Sent: Monday, October 28, 2013 12:12 PM
Subject: Re: [PSUBS-MAILIST] Group Help Request

Hey Joe,
I will send you my cad files on the Minkota 101 Saltwater. I have measured my new 101s and weed 2 prop.  I have also worked out the Marin 37 Kort nozzel design and attachment to the thruster for use on the SeaQuestor project. I will be most likely sending it to my fiberglass fabricator who will cut the assembly in foam  on their 5 axis cnc, ready for a fiberglass overlay.

Best Regards,
David Colombo

804 College Ave
Santa Rosa, CA. 95404
(707) 536-1424
http://www.seaquestor.com/

On Mon, Oct 28, 2013 at 8:03 AM, <jimtoddpsub at aol.com> wrote:

Joe,
>Since you asked: http://en.wikipedia.org/wiki/Cast_urethanes
>Jim
>-----Original Message-----
>From: Joe Perkel <josephperkel at yahoo.com>
>
>To: Personal Submersibles General Discussion <personal_submersibles at psubs.org>
>
>Sent: Mon, Oct 28, 2013 9:54 am
>Subject: Re: [PSUBS-MAILIST] Group Help Request
>
>
>Ok gentlemen first round of quotes for a Marin 19A Nozzle only in ABS plastic (White) for a 6" prop and not accounting for prop clearance is $760. This is using FDM process.
> 
>Same nozzle in cast urethane,.. $ 3,700,.. what is cast urethane? Dont want it anyway!!!
> 
>I need to know the exact diameter of a Weedless wedge 2 prop for a 4" motor in order to get the quote exact.
> 
>Joe
>
>
>From: hank pronk <hanker_20032000 at yahoo.ca>
>To: Personal Submersibles General Discussion <personal_submersibles at psubs.org> 
>Sent: Monday, October 28, 2013 10:28 AM
>Subject: Re: [PSUBS-MAILIST] Group Help Request
>
>
>
>Scott,
>I use weights from a weight lifting set, the steel ones.  They could go outside on a peg so to speak.  The only problem is you want them at the bottom of the sub.  That means hauling the sub unless you want to get wet.  Maybe a slide system.    I thought the same thing to put the air outside, that would kill my sleek and slippery-ness.  :-) 
>Hank
>
>
>From: swaters <swaters at waters-ks.com>
>To: Personal Submersibles General Discussion <personal_submersibles at psubs.org> 
>Sent: Monday, October 28, 2013 7:46:30 AM
>Subject: Re: [PSUBS-MAILIST] Group Help Request
>
>Hatch closure from both sides deffenetly a good one. I would say adjustable exterior weights. I hate the idea on chucking weights on the floor and then sitting on them. I am torn between that and moving the hp air tanks to the exterior to allow alot more room on the inside.
>Thanks,
>Scott Waters
>
>
>
>
>
>
>
>
>
>
>Sent from my U.S. Cellular© Smartphonehank pronk <hanker_20032000 at yahoo.ca> wrote: 
>Joe,
>Why don't you take a vote on what the best improvement would be for a k sub or alike.  My vote would be for a hatch closure from both sides.
>Hank
>
>
>From: Joe Perkel <josephperkel at yahoo.com>
>To: "personal_submersibles at psubs.org" <personal_submersibles at psubs.org> 
>Sent: Monday, October 28, 2013 5:41:42 AM
>Subject: Re: [PSUBS-MAILIST] Group Help Request
>
>I just love the world in which we live! Look what I found while waiting to take my daughter to school,.. http://www.quickparts.com/QuickQuote.aspx
>
>Isn't that just the coolest thing! The Star Trek synthesizer in the real world.
>
>Joe
>
>Sent from Yahoo! Mail for iPad 
>From: Marc de Piolenc <piolenc at archivale.com>; To: <personal_submersibles at psubs.org>; Subject: Re: [PSUBS-MAILIST] Group Help Request Sent: Mon, Oct 28, 2013 10:46:58 AM 
>Never thought much about doing it at small scale.
>
>I suppose I would set up something like a wood lathe or a potter's wheel 
>and work in some very soft material like low-density foam. Once I had 
>the shape that I wanted, I suppose one could pour a mold around the 
>master, melt or dissolve out the pattern and cast the final part in some 
>suitable plastic, or even in aluminum if you were ambitious.
>
>3D printing seems like the ultimate way to do it, though - the accuracy 
>available is already better than what we would need, and if the inital 
>results are not perfect, making changes and printing out another 
>prototype is very quick.
>
>Marc
>
>On 10/28/2013 6:13 PM, Joe Perkel wrote:
>> How can a home builder maintain that contour 360 Deg out of "X" material?
>>
>> Joe
>>
>> Sent from my overpriced
>> iPhone
>>
>> On Oct 28, 2013, at 2:57 AM, Marc de Piolenc <piolenc at archivale.com> wrote:
>>
>>> Quick clarification: a properly contoured Kort nozzle, MARRIED TO A MATCHING PROPELLER, will increase static and low-speed thrust. Of course it won't increase power, since that comes from your motor. If you just put a shroud around your existing prop, you will be disappointed, and a shroud that doesn't do the job is overpriced unless it's free! Key ingredients for success:
>>>
>>> Prop matched to the shroud
>>> Shroud matched to the speed and thrust requirement of the vehicle
>>> Motor matched to the resulting prop
>>>
>>> Marc
>>>
>>> On 10/28/2013 8:33 AM, Jon Wallace wrote:
>>>>
>>>> What is the cost of having a true Kort nozzle machined by a CNC? I think
>>>> a 30% improvement in thrust for $30 would be great but I suspect
>>>> machining a Kort is going to equate to many hundreds of dollars, if not
>>>> reaching beyond a thousand.  When I look at the Snoopy underwater videos
>>>> it is difficult to imagine a kort nozzle really making any difference in
>>>> the operational experience given that the motors are operating very
>>>> slowly and pushing Snoopy around at about 2 knots (estimated).  The
>>>> props are designed for power, but that's what we want underwater.  True,
>>>> a kort nozzle would increase that power but what is the return on the
>>>> cost?  In other words, on a road with a speed limit of 30mph and no
>>>> passing zones it doesn't matter whether you have a 1.6 liter or 5.4
>>>> liter engine under the hood does it?
>>> --
>>> Archivale catalog: http://www.archivale.com/catalog
>>> Polymath weblog: http://www.archivale.com/weblog
>>> Translations (ProZ profile): http://www.proz.com/profile/639380
>>> Translations (BeWords profile): http://www.bewords.com/Marc-dePiolenc
>>> Ducted fans: http://massflow.archivale.com/
>>> _______________________________________________
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>>
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>> -- Archivale catalog: http://www.archivale.com/catalog Polymath weblog: http://www.archivale.com/weblog Translations (ProZ profile): http://www.proz.com/profile/639380 Translations (BeWords profile): http://www.bewords.com/Marc-dePiolenc Ducted fans: http://massflow.archivale.com/ _______________________________________________ Personal_Submersibles mailing listPersonal_Submersibles at psubs.orghttp://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing listPersonal_Submersibles at psubs.orghttp://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
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