<DIV style="font-family:Arial, sans-serif; font-size:10pt;"><DIV>Hank, I still think I would have to machine it flat. Then I would have to paint it also. The edges seem to be problematic with painting them, even using epoxy paint.</DIV><DIV> </DIV><DIV>Brian<BR><BR>--- personal_submersibles@psubs.org wrote:<BR><BR>From: hank pronk via Personal_Submersibles <personal_submersibles@psubs.org><BR>To: Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org><BR>Subject: Re: [PSUBS-MAILIST] motor pod solution<BR>Date: Sat, 25 Nov 2017 00:59:38 +0000 (UTC)<BR><BR></DIV><DIV style="font-family: Helvetica Neue, Helvetica, Arial, sans-serif; font-size: 13px;"><DIV></DIV>
<DIV>Brian,</DIV><DIV>Why don't you just drill and bolt flat plates onto a ring with a gasket?. Or you can send your material up to me and I can machine them. </DIV><DIV>Hank</DIV><DIV><BR></DIV>
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On Friday, November 24, 2017, 5:36:02 PM MST, Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org> wrote:
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<DIV><DIV><DIV><DIV style="font-family: Arial, sans-serif; font-size: 10pt;"><DIV>Alan, What kind of material are you using aluminum ? Steel?</DIV><DIV> </DIV><DIV>Brian<BR><BR>--- personal_submersibles@psubs.org wrote:<BR><BR>From: Alan via Personal_Submersibles <personal_submersibles@psubs.org><BR>To: Personal Submersibles General Discussion <personal_submersibles@psubs.org><BR>Subject: Re: [PSUBS-MAILIST] motor pod solution<BR>Date: Sat, 25 Nov 2017 13:21:23 +1300<BR><BR></DIV><DIV>Brian,</DIV><DIV>my latest thruster design is in 3 sections; a front section housing the mechanical</DIV><DIV>seal & a bearing, the back section housing a bearing & the wiring port, & a central</DIV><DIV>tubular section. The front & back sections have an o-ring groove & o-ring for sealing</DIV><DIV>on assembly. The 3 sections will be press fitted together then drilled,tapped & </DIV><DIV>screwed. With the press fit I am regarding the central section as disposable as I</DIV><DIV>would probably have to cut in to it to part the sections. </DIV><DIV>Cheers Alan<BR><BR>Sent from my iPad</DIV><DIV><DIV><BR>On 25/11/2017, at 12:27 PM, Brian Cox via Personal_Submersibles <<A href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</A>> wrote:<BR><BR></DIV><BLOCKQUOTE><DIV><DIV style="font-family: Arial, sans-serif; font-size: 10pt;"><DIV>Hi All, Been wrestling with my motor pods ! The way I decided to mate the two end caps to my motor casing was not the ideal method. In fact I don't even remember ever seeing an arrangement like what I have. I'm squeezing a 1/4" o ring between two 1/4" pieces of pipe and then have side rings inside and out to keep the o ring from expanding out of that area. Surprisingly it has worked, probably only because there is next to zero pressure. So not wanting to invite a bad situation of oil leaking into the ocean I decided I need to have a proper sealing scheme. So that was going to mean I do a hatch style sealing arrangement with 14" dia stainless steel rings and a o ring groove etc.. So getting quotes on everything is was beginning to really add up , especially because the 14" pipe is just too big for my lathe , which means I would have to farm that part out ! The rings themselves were gong to be $600 for each motor pod ! So What I think I'm going to do is to just weld a 1/4" flat ring on both sides ( end cap and casing) regular steel, put them together and then just weld a bead around edge and seal it that way. Then if I need to get in there I will just grind off the bead and open it that way. It will also be rather easy to weld it back together where I previously ground out the weld on that lip. </DIV><DIV> </DIV><DIV>Brian</DIV></DIV></DIV></BLOCKQUOTE></DIV><BLOCKQUOTE><DIV><SPAN>_______________________________________________</SPAN><BR><SPAN>Personal_Submersibles mailing list</SPAN><BR><SPAN><A href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</A></SPAN><BR><SPAN><A href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</A></SPAN><BR></DIV></BLOCKQUOTE>_______________________________________________
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