F. George McDuffee wrote:
On Fri, 4 Apr 2014 16:49:22 -0500, "Terry Coombs"
wrote:



Ok , so I've got a few cough cough end mills with chipped or dull
ends . And I have this idea to use a collet block and a tapered
wedge in the vise to touch them up on the mill . Actually it'll take
2 wedges ... anyone ever seen sch a set-up ? Suggestions for an
easier way ? short of buying a surface or tool grinder , please
=================
for some ideas see
http://www.grizzly.com/products/End-...-Fixture/G9887
http://www.chaski.org/homemachinist/...t=15&mobile=on

http://www.use-enco.com/CGI/INSRIT?P...PMAKA=287-6520
http://www.use-enco.com/CGI/INSRIT
(with a sine bar and right angle plate)
also
https://pico-systems.com/sharpen.html


also make an adapter to mount an air or electric die grinder
to your mill, possibly using the quill if you have a good
spindle brake.
http://www.walmart.com/search/search...er+rotary+tool
(Nose cap has a strange thread)
http://www.harborfreight.com/4-piece...its-69664.html
http://www.harborfreight.com/4-piece...set-69658.html

FWIW -- Although use of diamond on steel is discouraged, I
find diamond grinding pins work well on carbide and cobalt
HSS for touchup.

I also find this combo works very well for grinding chip
breakers and hook in lathe and shaper tools. For slots see
http://www.harborfreight.com/5-piece...scs-69657.html

PAYDIRT ! Between you and Jim I now have enough info to build a fixture to
set the angles and index the EM's . Just made a boring head , also put the
finishing touches on a ball turner . I figger to make as much stuff as I can
to be self-sufficient as I can get ... and the idea to use a die grinder was
excellent , but maybe a router with a speed control ? I can visualize a
small surface grinder type setup based on a Porter-Cable laminate trimmer .
--
Snag