<html><head></head><body><p dir="ltr">What type of misalignment exists? Aren't you using a conical bearing face on your hatch? That should be self-centering.</p>
<p dir="ltr">Sean<br>
</p>
<br><br><div class="gmail_quote">On March 22, 2016 9:03:59 AM MDT, hank pronk via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px"><div id="yui_3_16_0_ym18_1_1458658465670_2557">Hi All,</div><div id="yui_3_16_0_ym18_1_1458658465670_2557">When I built my hatch system, I built it so the hinge pin has moment in it so the o-ring would have full contact before the hatch was fully closed metal to metal.</div><div id="yui_3_16_0_ym18_1_1458658465670_2557">When I vacuum test it, the hatch is not perfectly even in the seat, or at least it seems like it. I am wondering if I should close the hatch with the o-ring out and the hatch perfectly positioned and then weld bushings to the hinge so the pin has no movement. Or should I leave it alone and expect that the external pressure will push the hatch into place? </div><div id="yui_3_16_0_ym18_1_1458658465670_2557">Hank</div><div id="yui_3_16_0_ym18_1_1458658465670_2557"><br /></div><div
id="yui_3_16_0_ym18_1_1458658465670_2557">Scott, did you notice if your hatch hinge has play?</div></div><p style="margin-top: 2.5em; margin-bottom: 1em; border-bottom: 1px solid #000"></p><pre class="k9mail"><hr /><br />Personal_Submersibles mailing list<br />Personal_Submersibles@psubs.org<br /><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br /></pre></blockquote></div></body></html>