<div dir="ltr">You're welcome, glad it worked out ok...<div>JimR</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Sat, Oct 18, 2014 at 11:25 AM, hank pronk via Personal_Submersibles <span dir="ltr"><<a href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br>
Hi Jim R<br>
I just machined another q ball and it worked perfect with your tricks.<br>
thanks'<br>
Hank--------------------------------------------<br>
<span class="">On Fri, 10/17/14, Jim Rudholm via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br>
<br>
Subject: Re: [PSUBS-MAILIST] machining q ball<br>
</span> To: "Personal Submersibles General Discussion" <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>
Received: Friday, October 17, 2014, 6:15 PM<br>
<div class="HOEnZb"><div class="h5"><br>
I use<br>
billard balls for handles on my lathe fixtures. Try a PVC<br>
water pipe cap mounted in the 3-jaw and machine the inside<br>
for a snug fit. Then tighten a little more. Also add coolant<br>
and dress down the drill's cutting edges with a hand<br>
diamond hone to a very narrow flat. This gives more of a<br>
scraping action, works for brass and bronze, too. For<br>
handles, its a blind hole for a 1/2-13<br>
thread.JimR<br>
On Fri, Oct 17, 2014 at<br>
3:00 PM, hank pronk via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>
wrote:<br>
Thanks<br>
guys<br>
<br>
Emile,<br>
<br>
I think the hard resin q ball is what Gamma had when it was<br>
built.<br>
<br>
Vance,<br>
<br>
That is great, I am thinking the q ball twisted in the jaws<br>
causing the drill to bind. I can make a fixture to hold<br>
the ball tight without damaging it, while it is in the<br>
lathe.<br>
<br>
Hank<br>
<br>
--------------------------------------------<br>
<br>
On Fri, 10/17/14, via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>
wrote:<br>
<br>
<br>
<br>
Subject: Re: [PSUBS-MAILIST] machining q ball<br>
<br>
To: <a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a><br>
<br>
Received: Friday, October 17, 2014, 5:44 PM<br>
<br>
<br>
<br>
Hank,<br>
<br>
I've sent along some questions to the<br>
<br>
horse's mouth. Haven't heard from him in months,<br>
but<br>
<br>
I'm hoping he will get back to us shortly.<br>
<br>
<br>
<br>
Vance<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
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<br>
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-----Original<br>
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Message-----<br>
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<br>
<br>
From: hank pronk via Personal_Submersibles<br>
<br>
<<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>
<br>
<br>
<br>
To: personal_submersibles<br>
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<<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>
<br>
<br>
<br>
Sent: Fri, Oct 17, 2014 4:37 pm<br>
<br>
<br>
<br>
Subject: [PSUBS-MAILIST] machining q ball<br>
<br>
<br>
<br>
<br>
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<br>
<br>
<br>
<br>
<br>
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<br>
<br>
<br>
<br>
<br>
<br>
help!<br>
<br>
I tried to machine a q ball today as an experiment<br>
before<br>
<br>
the proper one<br>
<br>
arrives. I put tape around it and put it in a 3 jaw<br>
chuck<br>
<br>
and while drilling<br>
<br>
the hole through it cracked. Do I need to make a fixture<br>
to<br>
<br>
hold the q ball<br>
<br>
steady maybe? I made a home made o-ring groove cutter<br>
and<br>
<br>
that worked perfect.<br>
<br>
The q ball is very brittle, but machines very nice. <br>
Any<br>
<br>
ideas would be<br>
<br>
appreciated.<br>
<br>
Hank<br>
<br>
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