<html><head></head><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px"><div><span>Alec, </span></div><div dir="ltr" id="yui_3_16_0_ym19_1_1465901304603_3449"><span>It is clear you had a poor experience with a low CT and have ensured it will never happen again ;-) very nice work. It is a triumph to build such a sub in a confined space. </span></div><div dir="ltr" id="yui_3_16_0_ym19_1_1465901304603_3447"><span id="yui_3_16_0_ym19_1_1465901304603_3448">I have a couple of options for pressure testing. the quickest for testing small samples is my tiny chamber. That one 1.5 in ID by 4 in long, If you need bigger I have 3.5 in ID by 24 Long. If you need bigger, I can put something together.</span></div><div dir="ltr" id="yui_3_16_0_ym19_1_1465901304603_3447">As I mentioned, I can weigh and measure the part before and after, also I can measure in time increments. Just make a test procedure for me.</div><div dir="ltr" id="yui_3_16_0_ym19_1_1465901304603_3447">Hank</div><div dir="ltr" id="yui_3_16_0_ym19_1_1465901304603_3447"><span><br></span></div> <div class="qtdSeparateBR"><br><br></div><div class="yahoo_quoted" style="display: block;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12px;"> <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 Monday, June 13, 2016 8:27 PM, hank pronk via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<br></font></div> <br><br> <div class="y_msg_container"><div id="yiv7205914779"><div><div style="color:#000;background-color:#fff;font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px;"><div id="yiv7205914779yui_3_16_0_ym19_1_1465870945943_4251"><span>Alec,</span></div><div id="yiv7205914779yui_3_16_0_ym19_1_1465870945943_4251"><span id="yiv7205914779yui_3_16_0_ym19_1_1465870945943_4274">You can send me small samples for pressure testing to 3,000 psi. I can weigh the part before and after.</span></div><div id="yiv7205914779yui_3_16_0_ym19_1_1465870945943_4251"><span><br clear="none"></span></div><div id="yiv7205914779yui_3_16_0_ym19_1_1465870945943_4251"><span>Hank</span></div> <div class="yiv7205914779qtdSeparateBR"><br clear="none"><br clear="none"></div><div class="yiv7205914779yahoo_quoted" style="display:block;"> <div style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px;"> <div style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"> <div class="yiv7205914779yqt3878038367" id="yiv7205914779yqt54015"><div dir="ltr"><font size="2" face="Arial"> On Monday, June 13, 2016 7:01 PM, Alec Smyth via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<br clear="none"></font></div> <br clear="none"><br clear="none"> <div class="yiv7205914779y_msg_container"><div id="yiv7205914779"><div dir="ltr">Hi all,<div><br clear="none"></div><div>I'm going to test using 3D printed Kort nozzles on Shackleton, and I have an interesting unknown. It would be nice to print them solid, but it would just take too long and probably create shrinkage issues. So the question is, what fill percent suffices (in 3D printing you get to specify the percentage of material fill, the rest being air). I called Greg Cottrell and he didn't have any data on prints, but he did have some on the depth rating of different types of buoyancy foam.I did a napkin calculation and it would appear that, at least if the print behaves like foam of similar density, I'm fine. But does anyone have any data on this? Or does anyone have a small pressure test chamber for which we might print some test samples? I would need to test to about 500 psi.</div><div><br clear="none"></div><div>BTW I've updated Shackleton's project page: <a rel="nofollow" shape="rect" target="_blank" href="http://www.psubs.org/projects/1234567810/shackleton/">http://www.psubs.org/projects/1234567810/shackleton/</a></div><div><br clear="none"></div><div><br clear="none"></div><div><br clear="none">Thanks,</div><div><br clear="none">Alec</div></div></div><br clear="none">_______________________________________________<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> </div></div></div></div><br><div class="yqt3878038367" id="yqt21750">_______________________________________________<br clear="none">Personal_Submersibles mailing list<br clear="none"><a shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none"><a shape="rect" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none"></div><br><br></div> </div> </div> </div></div></body></html>