<div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px">I've been a ham for 45 years....WA3PWX<br><div id="yui_3_16_0_1_1425517909290_204110"><span></span></div><div id="yui_3_16_0_1_1425517909290_204112"> </div><div id="yui_3_16_0_1_1425517909290_204115"><div id="yui_3_16_0_1_1425517909290_204114">Al Secor</div></div><br>  <div id="yui_3_16_0_1_1425517909290_204119" style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div id="yui_3_16_0_1_1425517909290_204118" style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div id="yui_3_16_0_1_1425517909290_204117" dir="ltr"> <hr size="1">  <font id="yui_3_16_0_1_1425517909290_204121" size="2" face="Arial"> <b><span style="font-weight:bold;">From:</span></b> via Personal_Submersibles <personal_submersibles@psubs.org><br> <b><span style="font-weight: bold;">To:</span></b> Personal Submersibles General Discussion <personal_submersibles@psubs.org> <br> <b><span style="font-weight: bold;">Sent:</span></b> Saturday, March 7, 2015 6:32 PM<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [PSUBS-MAILIST] Gamma ring machining<br> </font> </div> <div id="yui_3_16_0_1_1425517909290_204123" class="y_msg_container"><br>I'm a ham in Sacramento, Ca.<br><br>Keith<br>K6FEE<br><br>Hugh Fulton via Personal_Submersibles <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br><br>>Hi Brian,<br>><br>>I have a Ham guy working with me.<br>><br>>Contact me off line.  <a ymailto="mailto:hc.fulton@gmail.com" href="mailto:hc.fulton@gmail.com">hc.fulton@gmail.com</a><br>><br>> <br>><br>>Hugh<br>><br>> <br>><br>>From: Personal_Submersibles [mailto:<a ymailto="mailto:personal_submersibles-bounces@psubs.org" href="mailto:personal_submersibles-bounces@psubs.org">personal_submersibles-bounces@psubs.org</a>] On Behalf Of Brian Cox via Personal_Submersibles<br>>Sent: Sunday, 8 March 2015 10:10 a.m.<br>>To: Personal Submersibles General Discussion<br>>Subject: Re: [PSUBS-MAILIST] Gamma ring machining<br>><br>> <br>><br>>Hey Alan,<br>><br>>                    Do you know any Ham radio guys down there ?<br>><br>> <br>><br>> <br>><br>>Brian,<br>><br>> <br>><br>>KK6IRC<br>><br>> <br>><br>>73<br>><br>>--- <a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a> wrote:<br>><br>>From: Alan James via Personal_Submersibles <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>>To: Personal Submersibles General Discussion <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>>Subject: Re: [PSUBS-MAILIST] Gamma ring machining<br>>Date: Sat, 7 Mar 2015 19:09:51 +0000 (UTC)<br>><br>>Hank,<br>><br>>had a quick search but couldn't find any suitable lapping<br>><br>>solution for a home builder. There were referances to thick<br>><br>>plate glass with a bonded diamond surface & marble as<br>><br>>lapping plates.<br>><br>>Alan<br>><br>> <br>><br>>  _____  <br>><br>>From: hank pronk via Personal_Submersibles <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>>To: Personal Submersibles General Discussion <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> <br>>Sent: Saturday, March 7, 2015 11:29 PM<br>>Subject: Re: [PSUBS-MAILIST] Gamma ring machining<br>><br>><br>><br>>Alan,<br>>I have been told that it would work, but I am not convinced.  I would think the machined disk needs to be harder so it does not wear down.  Honestly I just don't know.  <br>>Hank--------------------------------------------<br>>On Fri, 3/6/15, Alan James via Personal_Submersibles <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br>><br>>Subject: Re: [PSUBS-MAILIST] Gamma ring machining<br>>To: "Personal Submersibles General Discussion" <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>>Received: Friday, March 6, 2015, 9:30 PM<br>><br>>So<br>>do you think it would work with a flatsheet<br>>rotating on your reinforcing ring?I<br>>had thought of doing this with the hatch & landing,<br>>toget a<br>>perfect seal, not sure if I would need an orbital<br>>motionor<br>>not.Alan<br>>    <br>>    From: hank pronk via<br>>Personal_Submersibles<br>><<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>><br>>To: Personal<br>>Submersibles General Discussion<br>><<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> <br>><br>>Sent:<br>>Saturday, March 7, 2015 12:52 PM<br>>  Subject: Re:<br>>[PSUBS-MAILIST] Gamma ring machining<br>><br>>  <br>><br>>Alan,<br>>Yes I<br>>have done lapping in the past.  I mostly lap valves in<br>>engines.  It works great on two tapered faces.  <br>>Hank--------------------------------------------<br>>On Fri, 3/6/15, Alan James via<br>>Personal_Submersibles <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>>wrote:<br>><br>>  Subject: Re:<br>>[PSUBS-MAILIST] Gamma ring machining<br>>  To:<br>>"Personal Submersibles General Discussion" <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>>  Received: Friday, March 6, 2015, 6:39 PM<br>>  <br>>  Hank,are you<br>>  familiar with lapping?Rubbing<br>><br>>two surfaces together with abrasive paste in<br>>  betweenhttp://en.wikipedia.org/wiki/Lapping<br>>  Haven't<br>>  done it but have<br>>seen it in operation; you can get a very<br>><br>>smoothsurface<br>>  with this technique. Not sure<br>>if you could adapt it to your<br>>  newflange<br>>  facing machine.The<br>>  machine I<br>>saw in operation was slow but required very little<br>>  attention.Alan<br>>   <br>>     <br>>    From: hank pronk<br>>via<br>>  Personal_Submersibles<br>><br>><<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>>  <br>>  To: Personal<br>>  Submersibles General Discussion<br>>  <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>><br>>  <br>>  Sent:<br>><br>>Saturday, March 7, 2015 12:18 PM<br>>  Subject:<br>>Re:<br>>  [PSUBS-MAILIST] Gamma ring machining<br>>  <br>>   <br>><br>>Steve,<br>>  I am half way done<br>><br>>building my flange facing machine,  I should be mostly<br>>done<br>>  tomorrow.  My rig already weighs<br>>about 700 lbs.  I think<br>>  it is important<br>>that it is heavy and mine is built heavier<br>><br>>than the ones on YouTube.  If it fails I can do as you<br>>  mention.  I actually did exactly what you say<br>>on<br>>  Gamma's window frames. I used paint<br>>and glass with fine<br>>  wet sand paper. I would<br>>guess the SS ring was much harder<br>>  than the<br>>516-70 I have.<br>>  Hank<br>><br>>--------------------------------------------<br>>  On Fri, 3/6/15, Stephen Fordyce via<br>>  Personal_Submersibles <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>>  wrote:<br>>  <br>> <br>>Subject: Re:<br>>  [PSUBS-MAILIST] Gamma ring<br>>machining<br>>  To:<br>><br>>"Personal Submersibles General Discussion" <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>>  Received: Friday, March 6, 2015, 4:06 PM<br>>  <br>>  Hi Hank,<br>>  <br>>  <br>>  We used<br>>a flame facing machine recently at<br>>  work to<br>>do a<br>>  stainless steel flange on a<br>>  pressure vessel about 800mm ID.<br>>  We hired it<br>>  to use<br>>ourselves at great expense, and the thing<br>> <br>>weighed a couple of hundred kilos, was very<br>><br>>solid.<br>>  The fitter who did the job was<br>>very<br>>  experienced<br>> <br>>machinist (but hadn't used<br>>  one before)<br>>but could not get<br>>  the finish<br>>  very smooth - I can't find photos sorry,<br>>but<br>>  it was like regular machining grooves<br>>but much<br>>  larger - and<br>>  it<br>>looked pretty ordinary. He<br>>  spent several<br>>hours with a<br>>  grinder cleaning<br>>  it up.<br>>  On balance, it<br>>probably would have<br>>  been easier<br>>  to just flatten it manually<br>><br>>with a grinder (but it was on a<br>>  live<br>>  liquefied natural gas plant and they don't<br>>like<br>>  sparks:) ). Wasn't critical to<br>>get a flat<br>>  face as we<br>> <br>>were just making room for a<br>>  gasket in a<br>>slot to have more<br>>  <br>><br>>compression.<br>>  After getting it pretty<br>>flat<br>>  with a straight<br>> <br>>edge, the fine<br>>  stuff/quality control could<br>>be done by a thin<br>>  layer of paint on a<br>>known flat plate or<br>>  machined flange<br>>  which you put on the welded<br>><br>>flange and then where there is<br>>  no<br>>paint<br>>  deposited, you know that area is too<br>>low. Obviously<br>>  paint is no good, but<br>>colored oil or 2-layered<br>>  carbon paper<br>>  (nice because then you have a<br>>  trace of it) would probably<br>> <br>>work, or<br>>  charcoal.<br>> <br>>Cheers,<br>>  <br>>  Steve<br>>  On 06/03/2015 11:40<br>>  PM,<br>>  "hank pronk via<br>><br>>Personal_Submersibles" <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>>  wrote:<br>>  Brian,<br>>  <br>>  No, the machine is<br>>connected<br>>  to the inside lip of the<br>>  ring.  The<br>>  machine rotates<br>>on a center pivot.  The cutter<br>>  rotates<br>>instead of the part.<br>>  <br>>  <br>>  Hank<br>>  <br>><br>><br>><br>>--------------------------------------------<br>>  <br>>  On Thu, 3/5/15, Brian<br>>Cox<br>>  via Personal_Submersibles <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>>  wrote:<br>>  <br>>  <br>>  <br>> <br>> Subject: Re:<br>>  [PSUBS-MAILIST] Gamma ring<br>>machining<br>>  <br>>   To:<br>>"Personal Submersibles General<br>><br>>Discussion"<br>>  <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>>  <br>>   Received: Thursday,<br>>March<br>>  5, 2015, 9:15 PM<br>> <br>><br>>  <br>>  <br>> <br>> Hank,  are you going to<br>>  be<br>>  <br>>   turning the whole<br>>  fricking sub ?<br>>  <br>>  <br>>  <br>> <br>> Brian<br>>  <br>>  <br>>  <br>>   --- <a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a><br>>  <br>>   wrote:<br>>  <br>>  <br>>  <br>>  <br>>  <br>>   From:<br>>hank pronk via Personal_Submersibles <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>>  <br>>   To: <a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a><br>>  <br>>   Subject:<br>>[PSUBS-MAILIST]<br>>  Gamma ring machining<br>>  <br>>  <br>>   Date:<br>>Thu, 5 Mar 2015 18:00:24 -0800<br>>  <br>>  <br>>  <br>> <br>> Today my<br>>  welder came to my shop and<br>>welded the<br>>  <br>>  reinforcing<br>>  <br>>   ring into<br>>  Gamma, 10 passes, looks perfect!<br>>  <br>>  <br>>  <br>>   Next<br>>  step, machine the<br>>ring.  I am going to make a<br>>  <br>>   flange facing machine from<br>>  a one ton  truck full<br>>  <br>>  <br>>   floater differential hub<br>>and a part or two borrowed<br>>  from<br>>  my<br>>  <br>>  <br>>   spare lathe.  The rig will be hydraulic<br>>drive. <br>>  <br>>   This may<br>>or may not<br>>  work.  :-)  If it works and<br>>I<br>>  <br>>   am confident it<br>>will, I can also face CT<br>>  lands, with the<br>>  CT<br>>  <br>> <br>> welded in place.<br>>  <br>> <br>> Hank<br>>  <br>>  <br>><br>> _______________________________________________<br>>  <br>> <br>> Personal_Submersibles<br>>  mailing list<br>>  <br>>   <a ymailto="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br>>  <br>>   <a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br>>  <br>>  <br>>  <br>>  <br>>  <br>>  <br>><br>> _______________________________________________<br>>  <br>> <br>> Personal_Submersibles<br>>  mailing list<br>>  <br>>   <a ymailto="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br>>  <br>>   <a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br>>  <br>>  <br>>  <br>>  <br>>  <br>>  <br>><br>>_______________________________________________<br>>  <br>>  Personal_Submersibles<br>>  mailing list<br>>  <br>>  <a ymailto="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br>>  <br>>  <a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br>>  <br>>  <br>>  <br>>  -----Inline Attachment Follows-----<br>><br>> <br>><br>><br>><br>><br>>  <br>>  <br>>  <br>>  <br>><br>>_______________________________________________<br>>  Personal_Submersibles mailing list<br>>  <a ymailto="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br>>  <a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br>>  <br>>  <br>><br>>_______________________________________________<br>>  Personal_Submersibles mailing list<br>>  <a ymailto="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br>>  <a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br>>  <br>>    <br>>  <br>>  -----Inline Attachment Follows-----<br>>  <br>><br>>_______________________________________________<br>>  Personal_Submersibles mailing list<br>>  <a ymailto="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br>>  <a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br>>  <br>><br>>_______________________________________________<br>>Personal_Submersibles mailing list<br>><a ymailto="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br>><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br>><br>>    <br>><br>>-----Inline Attachment Follows-----<br>><br>>_______________________________________________<br>>Personal_Submersibles mailing list<br>><a ymailto="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br>><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br>><br>><br>>_______________________________________________<br>>Personal_Submersibles mailing list<br>><a ymailto="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br>><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br>><br>> <br>><br>>_______________________________________________ Personal_Submersibles mailing list <a ymailto="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a> <a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles </a><br>><br>> <br>><br>>__________ Information from ESET NOD32 Antivirus, version of virus signature database 11285 (20150307) __________<br>><br>> <br>><br>>The message was checked by ESET NOD32 Antivirus.<br>><br>> <br>><br>><a href="http://www.eset.com/" target="_blank">http://www.eset.com</a><br>><br>><br>>_______________________________________________<br>>Personal_Submersibles mailing list<br>><a ymailto="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br>><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br><br>_______________________________________________<br>Personal_Submersibles mailing list<br><a ymailto="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br><br><br></div> </div> </div>  </div>