Well folks Board is here and got X,Y,Z running fine should have the Spindle control up today or tomorrow. Only problem is that the A axis is now not responding. I have a PM752 as the driver for the board and with the PCPPS V2 with charge pump it ran with the bridge cable connected to the 5V no problem. My problem is that it will lock with power now when I wire that to ground but I don't get any motion from it all now.

Does anyone know what the wiring would be for that driver board to Roy's System 4?

Thanks and yes I am e-mailing Roy as well.

Michael