Hey, I need to make a circuit to drive the spindle motor on my cnc mill. I have pieced together a circuit but electronics is not my strong point. I'd appreciate it if you guys could take a look and offer advice. Time is of the essence if Christmas presents are to get made The motor I am using is a 110 VDC 6 amp .8HP. The cnc control board outputs 0-10V based on the speed specified. Schematic is here: http://dl.dropbox.com/u/2399925/Mobile Photo Dec 4, 2009 10 32 24 AM.jpg I plan to implement a tach and run closed loop but that can be done later. Thanks!