<html><head></head><body><div style="color:#000; background-color:#fff; font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px"><div><span>Greg,</span></div><div id="yui_3_16_0_ym19_1_1499620499683_3563"><span id="yui_3_16_0_ym19_1_1499620499683_3562">Hmmm, just googled EN 26 and it considered machinable even hardened and tempered, but what does that mean? </span></div><div id="yui_3_16_0_ym19_1_1499620499683_3563"><span>Hank</span></div> <div class="qtdSeparateBR"><br><br></div><div class="yahoo_quoted" style="display: block;"> <div style="font-family: Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 13px;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div dir="ltr"><font size="2" face="Arial"> On Sunday, July 9, 2017 11:12 AM, hank pronk via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<br></font></div> <br><br> <div class="y_msg_container"><div id="yiv9177349995"><div><div style="color:#000;background-color:#fff;font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px;"><div id="yiv9177349995yui_3_16_0_ym19_1_1499619231835_4642"><span>Greg,</span></div><div dir="ltr" id="yiv9177349995yui_3_16_0_ym19_1_1499619231835_4479"><span id="yiv9177349995yui_3_16_0_ym19_1_1499619231835_4639">I asked EE if they could make HY heads and they can but need a quenching tank. I can not find a supplier that can supply large enough pieces of HY steel to press a hemispherical head. EE does not supply anything but 516-70 . I can ask them but would need to source the material first. I would need to be sure I can even machine that material, I kinda doubt it? </span></div><div dir="ltr" id="yiv9177349995yui_3_16_0_ym19_1_1499619231835_4479">Hank</div> <div class="yiv9177349995qtdSeparateBR"><br clear="none"><br clear="none"></div><div class="yiv9177349995yahoo_quoted" style="display:block;"> <div style="font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px;"> <div style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"> <div class="yiv9177349995yqt2801707490" id="yiv9177349995yqt80357"><div dir="ltr"><font size="2" face="Arial"> On Sunday, July 9, 2017 10:36 AM, james cottrell via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<br clear="none"></font></div> <br clear="none"><br clear="none"> <div class="yiv9177349995y_msg_container"><div id="yiv9177349995"><div><div style="color:#000;background-color:#fff;font-family:verdana, helvetica, sans-serif;font-size:13px;"><div id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3303"><span>Hank,</span></div><div id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3303"><span><br clear="none"></span></div><div id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3303"><span id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3399">Do you know if EE can fabricate your hull from EN26 steel? The hull that Ron A. had fabricated was only 2.5" thick and went full ocean depth with plenty of safety factor. Using the same grade steel in a thickness designed for only 13,000 ft might save a lot of weight.</span></div><div class="yiv9177349995qtdSeparateBR" id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3417"><br clear="none"></div><div class="yiv9177349995qtdSeparateBR" id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3417">Greg C<br clear="none"><br clear="none"></div><div class="yiv9177349995yahoo_quoted" id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3567" style="display:block;"> <div id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3566" style="font-family:verdana, helvetica, sans-serif;font-size:13px;"> <div id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3565" style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"> <div class="yiv9177349995yqt2279124024" id="yiv9177349995yqt92798"><div dir="ltr" id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3564"> <font id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3563" size="2" face="Arial"> </font><hr id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3562" size="1"> <b><span style="font-weight:bold;">From:</span></b> hank pronk via Personal_Submersibles <personal_submersibles@psubs.org><br clear="none"> <b><span style="font-weight:bold;">To:</span></b> Personal Submersibles General Discussion <personal_submersibles@psubs.org> <br clear="none"> <b><span style="font-weight:bold;">Sent:</span></b> Monday, June 26, 2017 7:54 AM<br clear="none"> <b><span style="font-weight:bold;">Subject:</span></b> Re: [PSUBS-MAILIST] Pressure Test<br clear="none"> </div> <div class="yiv9177349995y_msg_container" id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3633"><br clear="none"><div id="yiv9177349995"><div id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3635"><div id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3634" style="color:#000;background-color:#fff;font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px;"><div id="yiv9177349995yui_3_16_0_ym19_1_1498476782388_5708"><span></span></div><div dir="ltr" id="yiv9177349995yui_3_16_0_ym19_1_1498476782388_5708">Alan,</div><div dir="ltr" id="yiv9177349995yui_3_16_0_ym19_1_1498476782388_5708">That really turned out nice, how did you mould the polyurethane? that stuff sticks like mad. </div><div dir="ltr" id="yiv9177349995yui_3_16_0_ym19_1_1498476782388_5708">I would leave the white gasket, it looks fine. Either the gasket thickness is not even or the seat is not perfectly matched to the Lenz.</div> <div class="yiv9177349995qtdSeparateBR" id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3636"><br clear="none"><br clear="none"></div><div class="yiv9177349995yahoo_quoted" id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3641" style="display:block;"> <div id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3640" style="font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px;"> <div id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3639" style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"> <div class="yiv9177349995yqt9842432104" id="yiv9177349995yqtfd01693"><div dir="ltr" id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3638"><font id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3637" size="2" face="Arial"> On Sunday, June 25, 2017 10:30 PM, Alan via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<br clear="none"></font></div> <br clear="none"><br clear="none"> <div class="yiv9177349995y_msg_container" id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3643"><div dir="ltr" id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3642">Pressure tested my light to 1000 psi for an hour using the water blaster <br clear="none"></div><div dir="ltr" id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3644">& no leaks! I didn't have a pressure relief valve in the system as I do with<br clear="none"></div><div dir="ltr" id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3645">my air pressure set up & it was a pain getting the chamber lid off. I had<br clear="none"></div><div dir="ltr" id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3646">thought the water blaster would have leaked a bit of pressure but it didn't.<br clear="none"></div><div dir="ltr" id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3647">The sealing system for the wires was a 3 layered process; encapsulating the<br clear="none"></div><div dir="ltr" id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3648">wires in the epoxy, then coating the insulation for an inch up from where they came <br clear="none"></div><div dir="ltr" id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3649">out of the epoxy, & over the epoxy with a 2 part heat activated pvc glue that <br clear="none"></div><div dir="ltr" id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3650">they use on inflatable boats. This glue worked a lot better on the pvc insulation<br clear="none"></div><div dir="ltr" id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3651">than several others I tried like E61000 (supposed to be better than shoe goo),<br clear="none"></div><div dir="ltr" id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3652">3M 5200 & polyurethane.<br clear="none"></div><div dir="ltr" id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3653">Over this, to tidy it up & act as a cable support, I moulded polyurethane.<br clear="none"></div><div dir="ltr" id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3654">In the attached photos the white ptfe gasket that the lens sits on looks wet<br clear="none"></div><div dir="ltr" id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3655">but it is just the compression of the lens against the gasket. I don't like this<br clear="none"></div><div dir="ltr" id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3656">from a cosmetic point & may change it. The 2 objects with the light are the<br clear="none"></div><div dir="ltr" id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3657">male mould for the polyurethane cable support & the silicone mould for the <br clear="none"></div><div dir="ltr" id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3658">same.<br clear="none"></div><div dir="ltr" id="yiv9177349995yui_3_16_0_ym19_1_1499617724890_3659">Alan</div><br clear="none"><br clear="none"><br clear="none">Sent from my iPad_______________________________________________<br clear="none">Personal_Submersibles mailing list<br clear="none"><a rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" target="_blank" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none"><a rel="nofollow" shape="rect" target="_blank" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none"><br clear="none"><br clear="none"></div> </div></div><div class="yiv9177349995yqt9842432104" id="yiv9177349995yqtfd04066"> </div></div><div class="yiv9177349995yqt9842432104" id="yiv9177349995yqtfd13124"> </div></div></div></div></div><div class="yiv9177349995yqt9842432104" id="yiv9177349995yqtfd49853">_______________________________________________<br clear="none">Personal_Submersibles mailing list<br clear="none"><a rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" target="_blank" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none"><a rel="nofollow" shape="rect" target="_blank" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none"></div><br clear="none"><br clear="none"></div></div> </div> </div> </div></div><div id="yiv9177349995DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2"><br clear="none">
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