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</o:shapelayout></xml><![endif]--></head><body lang=EN-NZ link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Alan I suggest you reduce the height of the main body and add it to the bottom piece with more grooves.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>As you will no doubt be anodising you will not get as good transfer of heat through the joint.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Also if possible move the face O’ring to the outside more as water gets between the faces and corrodes.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Are you using heat transfer paste?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Hugh<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Personal_Submersibles [mailto:personal_submersibles-bounces@psubs.org] <b>On Behalf Of </b>Alan James via Personal_Submersibles<br><b>Sent:</b> Wednesday, 19 April 2017 2:28 PM<br><b>To:</b> Personal Submersibles General Discussion<br><b>Subject:</b> [PSUBS-MAILIST] Light housing gaskets<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><div id="yui_3_16_0_ym19_1_1492567889675_2272"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica","sans-serif";color:black'>Cliff & Alec,<o:p></o:p></span></p></div><div id="yui_3_16_0_ym19_1_1492567889675_2271"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica","sans-serif";color:black'>just ordering 20 tempered borosilicate lenses at $2-50 each including postage!<o:p></o:p></span></p></div><div id="yui_3_16_0_ym19_1_1492567889675_2305"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica","sans-serif";color:black'>They will go in the pressure chamber, so I'll know whether I got good value.<o:p></o:p></span></p></div><div id="yui_3_16_0_ym19_1_1492567889675_2325"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica","sans-serif";color:black'>Just wondering what you guys used as gaskets under the lens.<o:p></o:p></span></p></div><div id="yui_3_16_0_ym19_1_1492567889675_2324"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica","sans-serif";color:black'>I did have an o-ring under the acrylic lens but are putting a gasket under the glass.<o:p></o:p></span></p></div><div id="yui_3_16_0_ym19_1_1492567889675_2342"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica","sans-serif";color:black'>I have an o-ring in the bore of the lens housing but would like my gasket to be a <o:p></o:p></span></p></div><div id="yui_3_16_0_ym19_1_1492567889675_2417"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica","sans-serif";color:black'>secondary seal as well as seat.<o:p></o:p></span></p></div><div id="yui_3_16_0_ym19_1_1492567889675_2416"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica","sans-serif";color:black'>Alec, with your experience of lenses breaking, I am looking at a suitable thickness<o:p></o:p></span></p></div><div id="yui_3_16_0_ym19_1_1492567889675_2415"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica","sans-serif";color:black'>of neoprene or similar for the top gasket that I can compress to half it's thickness <o:p></o:p></span></p></div><div id="yui_3_16_0_ym19_1_1492567889675_2434"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica","sans-serif";color:black'>when bolting the housing together. This will give me a bit of machining tolerance.<o:p></o:p></span></p></div><div id="yui_3_16_0_ym19_1_1492567889675_2465"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica","sans-serif";color:black'>see attachment<o:p></o:p></span></p></div><div id="yui_3_16_0_ym19_1_1492567889675_2448"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica","sans-serif";color:black'>Alan<o:p></o:p></span></p></div></div></div></body></html>