On Wed, 10 Sep 2008 06:37:09 -0800, Jon Anderson
wrote:
snip
That would require indexing the collet to get the stock at
the 45 degrees.
snip
=======
If you have some sort of mill with the required travel, the
easiest thing might be to do two pieces at a time.
Clamp/indicate a straight piece of bar stock on your mill table
[even a Bridgeport should do fine no cnc necessary] and clamp two
pieces of square aluminium against the guide, and run a 90 degree
included angle endmill between the two pieces. Rotate stock 3
times.
For sample end mill see
http://www.use-enco.com/CGI/INSRIT?P...PARTPG=INLMK32
http://www.use-enco.com/CGI/INSRIT?P...PARTPG=INLMK32

Good luck and let the group know how you make out.