<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div></div><div>Thanks Hank,</div><div>I like your method for making the bushing. It doesn't warrant a bearing</div><div>& as I said the ceramic bearings are expensive. </div><div>I was a bit confused about the oil trap but kept quiet :)</div><div>Alan</div><div><br></div><div><br>On 5/10/2018, at 12:40 AM, hank pronk via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br><br></div><blockquote type="cite"><div><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div></div>
<div>Alan,</div><div>I just realized I misunderstood what your goal is, my idea of a oil trap will not help keep the oil in the motor. The joints in my arm are plastic bushings made from PVC. I use a hole saw to make a round plastic disk 1\2 in thick, then I machine a shoulder in the disk that fits tight into the arm member. The disk has a centre hole drilled for the centre pin. Seems to work real nice and is quick to make.</div><div>Hank</div><div><br></div>
</div><div id="yahoo_quoted_8992283216" class="yahoo_quoted">
<div style="font-family:'Helvetica Neue', Helvetica, Arial, sans-serif;font-size:13px;color:#26282a;">
<div>
On Wednesday, October 3, 2018, 7:13:05 PM MDT, Alan via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:
</div>
<div><br></div>
<div><br></div>
<div><div id="yiv0736750221"><div><div></div><div>Hank,</div><div>the oil tube is clear, so I'll monitor the oil level in the tube & see if</div><div>additional over pressure helps first. Also I have a temperature sensor</div><div>in the motor so if the motor runs cool enough I won't worry.</div><div>Did you put bearings in the joints of your manipulator, or not bother?</div><div>I am still running with the idea of a manipulator with an open gearbox</div><div>& underwater motor. I can get ceramic bearings but they are expensive.</div><div>Alan </div><div class="yiv0736750221yqt7844834747" id="yiv0736750221yqt34186"><div><br clear="none">On 4/10/2018, at 12:23 PM, hank pronk via Personal_Submersibles <<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br clear="none"><br clear="none"></div><blockquote type="cite"><div><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div></div>
<div>Alan, all you need is to interrupt the oil pathway, just take a larger container \pipe\ whatever and have the lower tube enter at the bottom of the vessel and have the exiting tube leave on the opposite side above it. I use this method as a water trap for my steam engine, under pressure.</div><div>Hank</div><div><br clear="none"></div>
</div><div class="yiv0736750221yahoo_quoted" id="yiv0736750221yahoo_quoted_9514140126">
<div style="font-family:'Helvetica Neue', Helvetica, Arial, sans-serif;font-size:13px;color:#26282a;">
<div>
On Wednesday, October 3, 2018, 3:39:28 PM MDT, Alan via Personal_Submersibles <<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:
</div>
<div><br clear="none"></div>
<div><br clear="none"></div>
<div><div id="yiv0736750221"><div><div></div><div>Hank,</div><div>I have the wires running out of the motor through the tube that the</div><div>oil comes in through. At a point in that line I have a T where the wires</div><div>are epoxied & run without the tubing to the through hull, and the tubing</div><div>continues on to the oil compensator. The compensator has a low oil</div><div>level switch, so there should always be oil in the line.</div><div>There is increasing ambient pressure going in to the housing as you </div><div>dive, so not sure how you would relieve that on ascent with some sort</div><div>of oil trap! But I am not sure what idea you have.</div><div>I am stuck on an Island for 3 weeks looking after a dog & cat then my</div><div>other daughter is flying in & stealing my car, so won't be</div><div>making any rapid progress on this :(. </div><div>Alan</div><div><br clear="none"></div><div><br clear="none"></div><div><br clear="none">On 4/10/2018, at 9:29 AM, hank pronk via Personal_Submersibles <<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br clear="none"><br clear="none"></div><blockquote type="cite"><div><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div></div>
<div>Alan,</div><div>You can make a oil trap in the compensation tube, its real simple.</div><div>Hank</div><div><br clear="none"></div>
</div><div class="yiv0736750221yahoo_quoted" id="yiv0736750221yahoo_quoted_8984756303">
<div style="font-family:'Helvetica Neue', Helvetica, Arial, sans-serif;font-size:13px;color:#26282a;">
<div>
On Wednesday, October 3, 2018, 12:32:59 PM MDT, Alan via Personal_Submersibles <<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:
</div>
<div><br clear="none"></div>
<div><br clear="none"></div>
<div><div id="yiv0736750221"><div><div></div><div>Hank,</div><div>I am hoping I can dial up the over pressure to the point that it</div><div>keeps the oil down. (like blowing in to a straw forcing the liquid out)</div><div>The oil goes in through a clear tube so I can monitor the level.</div><div>I am not confident though; however oil compensation has been</div><div>around for a long time. </div><div>Unfortunately I can't put a one way valve in the system as the </div><div>pressure won't be able to escape on ascent.</div><div>Below is the motor in oil without the proppeller.</div><div>Alan</div><div><image1.JPG><br clear="none"></div><div class="yiv0736750221yqt8395382608" id="yiv0736750221yqt44265"><div><br clear="none">On 4/10/2018, at 1:34 AM, hank pronk via Personal_Submersibles <<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br clear="none"><br clear="none"></div><blockquote type="cite"><div><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div></div>
<div>Alan,</div><div>I have had similar situation, the oil will still come up the tube. The over pressure makes no difference, unless there is a piston or diaphragm blocking the oil.</div><div>Hank</div><div><br clear="none"></div>
</div><div class="yiv0736750221yahoo_quoted" id="yiv0736750221yahoo_quoted_9469552021">
<div style="font-family:'Helvetica Neue', Helvetica, Arial, sans-serif;font-size:13px;color:#26282a;">
<div>
On Wednesday, October 3, 2018, 2:53:29 AM MDT, Alan via Personal_Submersibles <<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:
</div>
<div><br clear="none"></div>
<div><br clear="none"></div>
<div><div id="yiv0736750221"><div><div></div><div>Hank,</div><div>yes very patient "lol" as this might not be the final version.</div><div>I have tested the motor out of the housing in a bucket of oil & established</div><div>that it could only be run at 30 Amps without overheating. It causes quite </div><div>a turbulence running in oil with no prop on due to the open design of a rotating </div><div>back section. It will want to force oil out of the housing & up the oil feed tube,</div><div>but I am hoping the overpressure from my oil compensator will keep the oil</div><div>in around the motor. </div><div>Am learning a lot on each attempt.</div><div>Alan</div><div><br clear="none"></div><div><br clear="none"></div><div class="yiv0736750221yqt7929574228" id="yiv0736750221yqt95416"><div><br clear="none">On 3/10/2018, at 9:06 PM, hank pronk via Personal_Submersibles <<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br clear="none"><br clear="none"></div><blockquote type="cite"><div><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div>Alan, your patience is amazing. I would be itching to test it before sending it away for anodizing. </div><div>Hank</div><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"></div></div></div></blockquote></div><blockquote type="cite"><div><span>_______________________________________________</span><br clear="none"><span>Personal_Submersibles mailing list</span><br clear="none"><span><a rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" target="_blank" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a></span><br clear="none"><span><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></span><br clear="none"></div></blockquote></div></div><div class="yiv0736750221yqt7929574228" id="yiv0736750221yqt91604">_______________________________________________<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></div>
</div>
</div></div></div></blockquote></div><blockquote type="cite"><div><span>_______________________________________________</span><br clear="none"><span>Personal_Submersibles mailing list</span><br clear="none"><span><a rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" target="_blank" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a></span><br clear="none"><span><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></span><br clear="none"></div></blockquote></div></div><div class="yiv0736750221yqt8395382608" id="yiv0736750221yqt65891">_______________________________________________<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></div>
</div>
</div></div></div></blockquote><blockquote type="cite"><div><image1.JPG></div></blockquote><blockquote type="cite"><div class="yiv0736750221yqt3745898934" id="yiv0736750221yqtfd23593"><div><span>_______________________________________________</span><br clear="none"><span>Personal_Submersibles mailing list</span><br clear="none"><span><a rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" target="_blank" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a></span><br clear="none"><span><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></span><br clear="none"></div></div></blockquote></div></div><div class="yiv0736750221yqt3745898934" id="yiv0736750221yqtfd33229">_______________________________________________<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></div>
</div>
</div></div></div></blockquote></div><blockquote type="cite"><div><span>_______________________________________________</span><br clear="none"><span>Personal_Submersibles mailing list</span><br clear="none"><span><a rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" target="_blank" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a></span><br clear="none"><span><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></span><br clear="none"></div></blockquote></div></div><div class="yqt7844834747" id="yqt03081">_______________________________________________<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></div>
</div>
</div></div></div></blockquote><blockquote type="cite"><div><span>_______________________________________________</span><br><span>Personal_Submersibles mailing list</span><br><span><a href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a></span><br><span><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a></span><br></div></blockquote></body></html>