Existential Angst wrote in
rec.crafts.metalworking on Wed, 18 May 2011 10:50:53 -0400:

Did you know that if you rotate a cutter with one or two teeth counter to
another rotating disk, at 1/2 the rpm of that disk, that you can generate
a
near-perfect polygon?? Holy ****..... You have to see it to believe
it..... brilliantly simple, profoundly elegant.... Mebbe Ig can sleuth
out
the vector geometry of this.
This page:
http://www.remsales.com/home/resourc...g_defined.html
has a good description of polygon turning.
--

Dan H.
northshore MA.