I still have the piece I made for my very first threading project in machine
tool lab back in 1948. A 3/4 x 8 Acme jack screw. Fun. Threading is very
exciting at 8 tpi. Much less so at 24. Turning the spindle with a hand
crank makes it much less so.
Now about the cover screws. I just pressed brass butterflies on the heads
the original Allen screws for my 7x lathe.
Mert
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-----Original Message-----
From: 7x12minilathe@...
[mailto:7x12minilathe@...]On Behalf Of CLevinski
Sent: Wednesday, December 05, 2012 7:58 AM
To: 7x12minilathe@...
Subject: [7x12minilathe] Threading for the first time
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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