We have a motionmaster 4 foot by 8 foot router with a 7.5 HP motor. It has a top RPM of 18,500. We cut plywood and 3/16 " plastic. We are getting real bad chatter marks on the edges of the plastic. I checked backlash and it is fine. The motor is new and the collet runs true. Any othe ideas that could cause this?
Thanks |