You probably should work your way down slowly, checking along the way to make sure it's cutting OK. Start at around 18,000 and work down from there. What size bits are you using? small bits might need to spin faster than 12,000.
If your using steppers, you really can't damage them, unless you take them apart.
__________________
Gerry
Mach3 2010 Screenset
http://home.comcast.net/~cncwoodworker/2010.html
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management) |