Re: Threading for the first time
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I made 2, for 2 different 7X lathes, it was very easy. Used a length of
1/2¡± water pipe for the main part, turned down the one end for a couple of
inches or so to be maybe .002¡± smaller than the headstock bore. Split it with a
hacksaw; a long 1/4¡± bolt draws a tapered plug into the end to expand and lock
the thing into place. The crank is made from 1/4¡± flat stock, the handle is a
piece of 3/4¡± aluminum rod, and a long shoulder bolt serves as the crankpin.
There¡¯s plans someplace or another that I followed. I¡¯m lucky enough to have all
of the stuff ¡®in stock¡¯ except for the shoulder bolt, but one could use a
regular bolt and a sleeve instead.
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Sent: Wednesday, December 05, 2012 10:06 PM
Subject: [7x12minilathe] Re: Threading for the first
time
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OK, looks like I need to make a hand-crank for the
mini-lathe...
Thanks to all for their suggestions and
comments!
Charlie
--- In mailto:7x12minilathe%40yahoogroups.com,
"CLevinski" wrote:
>
> Hi, All,
>
> I'm going to try single-point threading for the first time. I've read
up on the procedure, and I figure the best way is to just jump in and give it a
try. I'll initially make a 3/8-24 thread, only because it's big enough for me to
really see the progress as it develops. But what I would really like to make for
use after that is a 5 mm thread. These are, I believe, a 0.8 mm pitch. My goal
is to make some thumbscrews to hold the gear cover on my lathe without having to
use a hex key to get it off. My question is whether this is too fine a thread
for me to do as a beginner? Are there any special tricks?
>
> I
guess it really doesn't matter; if I screw it up (pun intended), I'll just try
it again.
>
> Thanks,
> Charlie
>
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