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Tim Wescott
 
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Default Hardening drill rod - how to avoid dimensional changes?

Siggy wrote:

I was afraid you were going to say that since I don't have a toolpost
grinder or other means to grind the final dia. after hardening. Any other
ideas?

Robert

"Bugs" wrote in message
oups.com...

For tolerances that tight you will need to turn the part slightly
oversize, harden, then grind to the finish dimension.
Bugs




http://modelenginenews.org/techniques/needles.html

Nice picture of a dremel tool made into a tool post grinder. The author
mentions that the bearings aren't up to real precision work, but I'm
thinking they could be upgraded.

One of these days I gotta get me a tool post grinder...

--

Tim Wescott
Wescott Design Services
http://www.wescottdesign.com