<html><head></head><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_1455041385818_2932"><span id="yui_3_16_0_1_1455041385818_2931">Brian,</span></div><div dir="ltr" id="yui_3_16_0_1_1455041385818_2934"><span id="yui_3_16_0_1_1455041385818_2933">If that is the case I will drill and tap from the bottom as far as possible, then drill oversize from the top so the threaded rod will slide in </span>until it hits threads.</div><div dir="ltr" id="yui_3_16_0_1_1455041385818_2934">Hank</div> <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 Tuesday, February 9, 2016 10:47 AM, Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<br></font></div>  <br><br> <div class="y_msg_container"><div id="yiv7490432833"><div><div style="font-family:Arial, sans-serif;font-size:10pt;"><div>Hi Hank,</div><div>                    Brian here, but no matter, if the threads are very long isn't it difficult to make threads going that distance?  My experience with threads are at the most an 1 1/2" long .  Would you have to get an extra long tape?   </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] Jon's new penetrators<br clear="none">Date: Tue, 9 Feb 2016 16:42:53 +0000 (UTC)<br clear="none"><br clear="none"></div><div class="yiv7490432833yqt3711206838" id="yiv7490432833yqt54486"><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>Jon,</span></div><div dir="ltr"><span>I will have to research drilling size for 1\4 inch, but yes, I will drill under size then run a tap through to make the threads.  To keep it simple, I would like to do two o-rings on the bore with an over size end to create a shoulder and then a snap ring to retain it.  You would get the penetrator with a hole or holes bored through and three grooves, two for o-rings and one for the snap ring.  All you will have to do is cut the rod to length and thread it in with some epoxy on the threads.  </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, February 9, 2016 8:52 AM, 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>Hank,    so to clarify on the Delrin, a copper threaded rod ( 1/4" for instance) would get threaded into the Delrin?  Would you just make an undersized hole then?  and the copper rod would form a thread all the way through?</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] Jon's new penetrators<br clear="none">Date: Tue, 9 Feb 2016 00:03:53 +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>Jon,</span></div><div><span>Great, if you can give me the </span>measurements I can whip them up for you and you can thread the rods in.  Also let me know the grade of Derlin and I will see if I can get it here.</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 Monday, February 8, 2016 4:31 PM, Jon Wallace via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<br clear="none"></font></div>  <br clear="none"><br clear="none"> <div><div><div>
    <div><br clear="none">
      Don't have calipers but will get a good one soon so I can get some
      measurements.<br clear="none">
      <br clear="none">
      Jon<br clear="none">
      <br clear="none">
      <br clear="none">
      On 2/7/2016 10:27 PM, hank pronk via Personal_Submersibles wrote:<br clear="none">
    </div>
    <div><blockquote>
      <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>Jon,</div>
        <div dir="ltr">I just
          realized that your penetrator holes are in the aft head, so my
          last idea is bad!  Derlin is the way to go.  Do you have a
          caliber to get some accurate measurements? </div>
        <div dir="ltr"><br clear="none">
        </div>
        <div dir="ltr">Hank</div>
      </div>
      <br clear="none">
    </blockquote></div>
    <br clear="none">
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