<html><body><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_1_1439431329460_4527"><span>Brian,</span></div><div id="yui_3_16_0_1_1439431329460_4527"><span>Agreed, I was surprised at the lee way, I tend to go to the tight end of the </span>tolerance, because they only turn a bit and slowly.</div><div id="yui_3_16_0_1_1439431329460_4527">You should go visit your daughter, then come up for a dive day</div><div id="yui_3_16_0_1_1439431329460_4527">Hank</div>  <br><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 Wednesday, August 12, 2015 7:01 PM, Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<br> </font> </div>  <br><br> <div class="y_msg_container"><div id="yiv8574157482"><div><div style="font-family:Arial, sans-serif;font-size:10pt;"><div>There is a fair amount of fudging involved with those o rings.  You should obviously strive to get everything as close as possible to the specs, but when you look at the tolerances with respect to the squeeze there is a certain amount of lee way.   The smaller width of the o ring itself the less fudging you can do.</div><div> </div><div>brian  <br clear="none"><br clear="none">--- personal_submersibles@psubs.org wrote:<br clear="none"><br clear="none">From: hank pronk via Personal_Submersibles <personal_submersibles@psubs.org><br clear="none">To: Personal Submersibles General Discussion <personal_submersibles@psubs.org><br clear="none">Subject: Re: [PSUBS-MAILIST] o-ring groove<br clear="none">Date: Wed, 12 Aug 2015 23:33:13 +0000 (UTC)<br clear="none"><br clear="none"></div><div class="yiv8574157482yqt9620522227" id="yiv8574157482yqt27697"><div style="color:rgb(0, 0, 0);font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px;background-color:rgb(255, 255, 255);"><div><span>Brian,</span></div><div><span>Off hand I don't </span>remember the dimensions, but I am going with .125 o-rings.  I use an o-ring groove guide to determine the groove size.</div><div>When I made the groove in my Q ball I made a boring tool and ground the carbide to the exact size and just sank it in, but the Q ball is very soft.</div><div>Hank</div>  <br clear="none"><div><br clear="none"><br clear="none"></div><div 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 face="Arial" size="2"> On Wednesday, August 12, 2015 4:27 PM, Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<br clear="none"> </font> </div>  <br clear="none"><br clear="none"> <div><div><div><div style="font-family:Arial, sans-serif;font-size:10pt;"><div>You can do it like you suggest, in fact that is how it is usually done, I believe.  What are the dimensions of the groove you need?</div><div> </div><div>Brian <br clear="none"><br clear="none">--- personal_submersibles@psubs.org wrote:<br clear="none"><br clear="none">From: hank pronk via Personal_Submersibles <personal_submersibles@psubs.org><br clear="none">To: Personal Submersibles General Discussion <personal_submersibles@psubs.org><br clear="none">Subject: [PSUBS-MAILIST] o-ring groove<br clear="none">Date: Wed, 12 Aug 2015 22:16:12 +0000 (UTC)<br clear="none"><br clear="none"></div><div><div style="color:rgb(0, 0, 0);font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px;background-color:rgb(255, 255, 255);"><div>Brian,</div><div>Did you sort out the boring bar for cutting inside o-ring grooves?   I need to do the same and could use some advice, I was going to make a boring bar cutter with a very narrow cutter, narrower than the required groove and do multiple cuts.  I tried to make a groove cutter that was the full groove width but it was to much.   </div><div>Hank</div></div></div>_______________________________________________
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