Good to know.
I scaled it down to .75 and slowed the feed rate down and she cut like a dream.
(Cutting Aluminum)
I need to set up the Z axis and Im golden.
anybody know of a good source for toothed pullys ?
the surplus place I invade daily is out of any of the size I need.
I will probably go to Grainger if I dont find a good online source.
Thanks again peeps.

Stock Drive, Google them. Good people to deal with, if they don't have it, you probably don't need it. They allso have a design wizard. You give it the pulley ratio, desired center to center. It will give you length, number of teeth, actual center to center.

OK, you win.

Thanks guys ..
All I care about right now is the Bore size.