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[Shop-talk] Identifying taper and threading attachments on a

Subject: [Shop-talk] Identifying taper and threading attachments on a
From: arvidj at visi.com (Arvid Jedlicka)
Date: Thu, 20 Oct 2011 10:29:06 -0500
References: <mailman.18.1318960808.11683.shop-talk@autox.team.net> <1B9FB4B4C85C43988CF6533A293A8F6D@EnergyKinetics.EKnet> <65884CFF6F01482B99CD50CD5947BC69@HP62011> <7520E99DCA554F72827DAE1E259B3768@EnergyKinetics.EKnet> <B8677E2507954B69BD9E4BD02B86E23F@HP62011> <4E9F8126.3000707@frontier.com>
I totally agree, it can be done.

I think the original post was "they just chucked a new piece in and cut new 
threads" and my intent was to suggest why it would might be quicker to just 
start over.

Arvid

-----Original Message----- 
From: David C.
Sent: Wednesday, October 19, 2011 9:02 PM
To: Arvid Jedlicka
Cc: Joe Szwed ; shop-talk at autox.team.net
Subject: Re: [Shop-talk] Identifying taper and threading attachments on a

Not necessarily; chasing or "picking up" an existing thread on a lathe
with a threading dial is (or at least was) a pretty straightforward task
for the average machinist.  You just get the cutting tool close to the
threaded part, close the half nuts at the appropriate mark on the
threading dial, stop the lathe, then very carefully use the cross and
compound to seat the threading tool in the thread and proceed as normal.

Dave

Arvid Jedlicka wrote:
> When they removed the pipe from the chuck after threading all bets were
> off as to synchronizing the existing threads with the cutter when they
> put it back in the chuck.  Easier to just start over again.

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