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10 TPI LEAD SCREW

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andyf:
Great job  :thumbup:

I may need to make a similar Acme nut, in the not too distant future. May I ask how you went about the internal threading? A fully-profiled form tool which left you with a flat at the bottom of the valley when you got to full depth, or a tool with a 29o point which, once at full depth, you shuffled along with the topslide on successive passes to widen the valley?

Andy

Brass_Machine:
Nice job. That's some sharp (lol) looking threads. Very very nice.

Eric

sbwhart:
Great bit of work  :clap: :clap: :clap:

Stew

Davo J:
Hi,
Rdg Tools have them for £8.51, I just gave another bloke from in the US the link the other day, he ordered 2 and cost him $55 US dollars delivered.
http://www.rdgtools.co.uk/acatalog/ACME_TAPS__LEFT_HAND_.html

Dave


--- Quote from: kvom on August 08, 2010, 05:37:52 PM ---a 1/2-10LH tap only costs $100 or so at McMaster-Carr.  Looks like you saved some bucks doing the internal threading on the lathe.  :beer:

--- End quote ---

doubleboost:
Hi
Andy
The thread is actually a square profile the tool was slightly narower than the finished thread once it was cut to depth i slowly widend it untill a good fit was achived.
I was talking to rob wilson he sugested making a silver steel tap at the same settings as the screw this would be used to finish the internal thread  :bow: :bow: :bow: :bow:
John

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