In article Zipbc.58821$gA5.763453@attbi_s03, Dave Pidwerbecki says...

I'm restoring a Sheldon 0 milling machine. The mill is in OK shape - about
a 1/4" of old paint on it, a little rust on the handles, etc. The X axis
nut is quite badly worn, but I think that the screw is in pretty good shape.
Does anyone have a nut for this mill or how would you suggest I
retrofit/make one. I'm new to the shop and I'm not too sure my capabilities
are up to making an acme nut on my lathe.

I did this (acme ID thread) for the feed nut on a hardinge milling
machine. I kind of guessed at the thread form by looking at
the leadscrew, and ground an internal threading tool to get inside
the bronze cylinder nut. It turned out OK - I could have purchased
one from hardinge but I learned a lot doing that.

Jim

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