[skmetal7]

Hey guys, I need help with setting up this combo. I have mach3 set up for the speed control, I used 6us for step pulse. I get a good voltage reading and the voltage changes from 0v-~11.8vdc when I change the spindle speed in mach3, I think I have the spindle board and control board connected properly, take a liik at the pics. red wire is pos. The problem is that the spindle runs at max rpms no matter what speed in mach or the voltage across p1 and p2. It turns on and off just fine, I have the accel set low for now and velocity all the way up.

Oh yeah, the little pot on the control board has no effect on adjusting the voltage, at all.