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2 questions - threading silver steel; tightening bar in the chuck

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Stub Mandrel

07/05/2010 21:00:13

4318 forum posts
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Posted by John Stevenson on 06/05/2010 08:24:10:

Posted by Stub Mandrel on 05/05/2010 19:40:47:

Posted by Ian S C on 17/04/2010 12:11:00:
Meyrick, iI imagine that your mic is a digital one, as I'v never heard of a mechanical type with that sort of definition, you would just about need temperature controled condions to maintain accuracy, you realy need that for 0.0001" let alone a 1/10 of that. Sorry we're wandering. Ian S C

0.00001" is about 0.00025mm - 250 nm. That's less than a wavelength of red light. So i vote with Ian's scepticism here

Neil

Pity Myfords don't work to the same tolerances...............

They should invest in mini-lathes - smaller lathe, smaller work

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