<html><head></head><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yui_3_16_0_ym19_1_1478471683057_2317"><span>Rick,</span></div><div id="yui_3_16_0_ym19_1_1478471683057_2369" dir="ltr"><span id="yui_3_16_0_ym19_1_1478471683057_2368">have a look at this Psub paper about Minn kotta compensation.</span></div><div id="yui_3_16_0_ym19_1_1478471683057_2379" dir="ltr"><span id="yui_3_16_0_ym19_1_1478471683057_2384"><a id="yui_3_16_0_ym19_1_1478471683057_2383" href="http://www.psubs.org/designguide/wmkmotor.html">http://www.psubs.org/designguide/wmkmotor.html</a></span></div><div id="yui_3_16_0_ym19_1_1478471683057_2467" dir="ltr"><span id="yui_3_16_0_ym19_1_1478471683057_2466">The hose that wraps around the motor, as I understand it, is for</span></div><div id="yui_3_16_0_ym19_1_1478471683057_2465" dir="ltr"><span id="yui_3_16_0_ym19_1_1478471683057_2464">equalizing the pressure inside the thruster with the ambient water</span></div><div id="yui_3_16_0_ym19_1_1478471683057_2496" dir="ltr"><span id="yui_3_16_0_ym19_1_1478471683057_2501">pressure. I guess it would allow for a bit of expansion.</span></div><div id="yui_3_16_0_ym19_1_1478471683057_2550" dir="ltr"><span id="yui_3_16_0_ym19_1_1478471683057_2549">I did some calculations on the hose & it may not squeeze in until</span></div><div id="yui_3_16_0_ym19_1_1478471683057_2667" dir="ltr"><span id="yui_3_16_0_ym19_1_1478471683057_2666">at least 100ft. As the seals are only rated to 30ft that means they</span></div><div id="yui_3_16_0_ym19_1_1478471683057_2810" dir="ltr"><span id="yui_3_16_0_ym19_1_1478471683057_2809">would fail before you had any pressure compensation. "However"</span></div><div id="yui_3_16_0_ym19_1_1478471683057_2668" dir="ltr"><span id="yui_3_16_0_ym19_1_1478471683057_2752">if you pre-compress the hose with a metal band to make it out of </span></div><div id="yui_3_16_0_ym19_1_1478471683057_3036" dir="ltr"><span>round, it solves the problem.</span></div><div id="yui_3_16_0_ym19_1_1478471683057_2753" dir="ltr"><span id="yui_3_16_0_ym19_1_1478471683057_2787"> cliff is using a regulator with relieving function to compensate.</span></div><div id="yui_3_16_0_ym19_1_1478471683057_3027" dir="ltr"><span id="yui_3_16_0_ym19_1_1478471683057_3026">You could use this for air or oil, & it would take up any expansion.</span></div><div id="yui_3_16_0_ym19_1_1478471683057_3029" dir="ltr"><span id="yui_3_16_0_ym19_1_1478471683057_3028">I believe (but could be wrong) that the 101 has 2 lip seals.</span></div><div id="yui_3_16_0_ym19_1_1478471683057_3054" dir="ltr"><span id="yui_3_16_0_ym19_1_1478471683057_3078">To me this is a problem because one of the two of them will fail.</span></div><div id="yui_3_16_0_ym19_1_1478471683057_3073" dir="ltr"><span id="yui_3_16_0_ym19_1_1478471683057_3072">There will be 1atm of pressure between the seals until one seal</span></div><div id="yui_3_16_0_ym19_1_1478471683057_3075" dir="ltr"><span id="yui_3_16_0_ym19_1_1478471683057_3074">fails. I am not sure what Cliff did about this, he did a lot of work</span></div><div id="yui_3_16_0_ym19_1_1478471683057_3077" dir="ltr"><span id="yui_3_16_0_ym19_1_1478471683057_3076">on the Minn kotta 101 recently.</span></div><div id="yui_3_16_0_ym19_1_1478471683057_3149" dir="ltr"><span>Cheers Alan</span></div><div id="yui_3_16_0_ym19_1_1478471683057_2389"><br></div><div id="yui_3_16_0_ym19_1_1478471683057_2416"><br></div><div class="qtdSeparateBR" id="yui_3_16_0_ym19_1_1478471683057_2338"><br><br></div><div class="yahoo_quoted" id="yui_3_16_0_ym19_1_1478471683057_2461" style="display: block;"> <div id="yui_3_16_0_ym19_1_1478471683057_2460" style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div id="yui_3_16_0_ym19_1_1478471683057_2459" style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div id="yui_3_16_0_ym19_1_1478471683057_2463" dir="ltr"> <font id="yui_3_16_0_ym19_1_1478471683057_2568" face="Arial" size="2"> <hr size="1"> <b><span style="font-weight: bold;">From:</span></b> Rick Patton via Personal_Submersibles <personal_submersibles@psubs.org><br> <b id="yui_3_16_0_ym19_1_1478471683057_2784"><span id="yui_3_16_0_ym19_1_1478471683057_2783" style="font-weight: bold;">To:</span></b> Personal Submersibles General Discussion <personal_submersibles@psubs.org> <br> <b id="yui_3_16_0_ym19_1_1478471683057_2782"><span id="yui_3_16_0_ym19_1_1478471683057_2781" style="font-weight: bold;">Sent:</span></b> Monday, November 7, 2016 10:20 AM<br> <b id="yui_3_16_0_ym19_1_1478471683057_2786"><span id="yui_3_16_0_ym19_1_1478471683057_2785" style="font-weight: bold;">Subject:</span></b> Re: [PSUBS-MAILIST] electrical pass-thru<br> </font> </div> <div class="y_msg_container" id="yui_3_16_0_ym19_1_1478471683057_2458"><br><div id="yiv1132156684"><div id="yui_3_16_0_ym19_1_1478471683057_2457"><div id="yui_3_16_0_ym19_1_1478471683057_2456" dir="ltr"><div id="yui_3_16_0_ym19_1_1478471683057_2455"><div id="yui_3_16_0_ym19_1_1478471683057_2454"><div id="yui_3_16_0_ym19_1_1478471683057_2453"><div id="yui_3_16_0_ym19_1_1478471683057_2493">Apparently I am not able to post directly to the group so I'll have to piggyback this thread with a couple of questions for now until I can figure out what's going on.<br clear="none"><br clear="none"></div>I am ready to start compensating my Minn-Kota motors and as I understand it from the group, a bladder and or tubing is needed to allow for expansion of the oil when it gets hot. Was wondering if this was based on theory or did someone in the past not do the tubing and have the O ring spit out? I wouldn't think that the tubing would be flexible enough to allow for expansion. I had copied a post of someone who had done it awhile back and they had said that they had drilled a 1/8" hole in the motor housing which seems quite small and was wondering if 1/4" might be better??<br clear="none"></div>also, <br clear="none"></div>*For those using Minn-Kota motors, what are you using for a prop tip to hull distance?<br clear="none"></div>* The length of rod that protrudes inside the hull ( thruster handle )<br clear="none"><div><div><div>* Could I use something like a Schedule 80 ss pipe instead of solid ss round stock boarded out to accept the wires from the thruster?<br clear="none"></div><div>* What size copper rod should I use to equal 10 gauge wire to carry the power from the thruster to inside the sub?<br clear="none"></div><div>Thanks guys<br clear="none"><br clear="none"></div><div>Rick<br clear="none"></div></div></div></div><div class="yiv1132156684yqt4439537512" id="yiv1132156684yqt65504"><div class="yiv1132156684gmail_extra"><br clear="none"><div class="yiv1132156684gmail_quote">On Wed, Nov 2, 2016 at 4:17 PM, Rick Patton <span dir="ltr"><<a href="mailto:rick@landnseawelding.com" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:rick@landnseawelding.com">rick@landnseawelding.com</a>></span> wrote:<br clear="none"><blockquote class="yiv1132156684gmail_quote" style="margin: 0px 0px 0px 0.8ex; padding-left: 1ex; border-left-color: rgb(204, 204, 204); border-left-width: 1px; border-left-style: solid;"><div dir="ltr"><div>Amazing as I though that that is what they would charge just to do the cut.<span class="yiv1132156684HOEnZb"><font color="#888888"><br clear="none"><br clear="none"></font></span></div><span class="yiv1132156684HOEnZb"><font color="#888888">Rick<br clear="none"></font></span></div><div class="yiv1132156684HOEnZb"><div class="yiv1132156684h5"><div class="yiv1132156684gmail_extra"><br clear="none"><div class="yiv1132156684gmail_quote">On Wed, Nov 2, 2016 at 3:44 PM, Brian Cox via Personal_Submersibles <span dir="ltr"><<a href="mailto:personal_submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs. org</a>></span> wrote:<br clear="none"><blockquote class="yiv1132156684gmail_quote" style="margin: 0px 0px 0px 0.8ex; padding-left: 1ex; border-left-color: rgb(204, 204, 204); border-left-width: 1px; border-left-style: solid;"><div style="font-family: Arial, sans-serif; font-size: 10pt;"><div>most likely 6061 which is fine.</div><div> </div><div>Brian<br clear="none"><br clear="none">--- <a href="mailto:personal_submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.or g</a> wrote:<br clear="none"><br clear="none">From: hank pronk via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.o rg</a>><br clear="none">To: Personal Submersibles General Discussion <<a href="mailto:personal_submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.o rg</a>><br clear="none">Subject: Re: [PSUBS-MAILIST] electrical pass-thru<br clear="none">Date: Wed, 2 Nov 2016 20:34:14 +0000 (UTC)<br clear="none"><br clear="none"></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>Man that is cheap, are you sure it is a good grade. I want to build subs in California! </div><div>Hank</div><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, November 2, 2016 12:26 PM, Brian Cox via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.o rg</a>> 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>Hank, $30 for a 6 1/2" dia x 1 1/2" thick . one reason is I wanted to put a O ring around the edge for extra sealing capability.</div><div> </div><div>Brian<br clear="none"><br clear="none">--- <a href="mailto:personal_submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.or g</a> wrote:<br clear="none"><br clear="none">From: hank pronk via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.o rg</a>><br clear="none">To: Personal Submersibles General Discussion <<a href="mailto:personal_submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.o rg</a>><br clear="none">Subject: Re: [PSUBS-MAILIST] electrical pass-thru<br clear="none">Date: Wed, 2 Nov 2016 09:03:12 +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><span>Brian,</span></div><div dir="ltr"><span>I meant to say,, I got a 1 inch thick Aluminum pen plate that came with Gamma.</span></div><div dir="ltr"><span>Hank</span></div> <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 Tuesday, November 1, 2016 8:50 PM, hank pronk via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.o rg</a>> wrote:<br clear="none"></font></div> <br clear="none"><br clear="none"> <div><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><span>Brian,</span></div><div><span>That is a Sean type question, but I do have a 1 inch thick pen plate that came with Gamma. Why spend the money on aluminum, just for machining. I made mine in a flash with 516-70. I made mine from a cut out from a ring I had cut, 1 inch thick. You could have it water jet cut, then you just have to face it.</span></div><div><span>Hank</span></div> <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><div dir="ltr"><font face="Arial" size="2"> On Tuesday, November 1, 2016 8:25 PM, Brian Cox via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.o rg</a>> wrote:<br clear="none"></font></div> <br clear="none"><br clear="none"> <div><div><div style="font-family: Arial, sans-serif; font-size: 10pt;"><div>Hank, I'm planning on running my electrical power and control through one of my viewports . My plan was to remove the window and put a piece in there that would be the same size as the acrylic window( 1 1/2" thick), I was thinking of using a 1 1/2" thick piece of aluminum just because it would be easier to machine. I might need to have it anodized I guess, but can you think of any reason there would be an issue using aluminum ?</div><div> </div><div>Brian</div></div>
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