So it's time to replace the spindle in my Ebay parts CNC mill. I work on mostly small parts with 1/4" and under cutters so I decided on a fairly high RPM design using a brushless motor from the RC world to drive it. I have an industrial type controller but rated at only 500W, so I may just use an RC speed controller to operate it initially. I began today with the hope of getting along quick, but so far have made only a small dent in it. An almost perfectly good motor was stripped down to the parts I need.