I ended up with the System1v2 board, with System4 Spindle control from DIYCNC. I had used the 28v line for the Baldor Logic input to drive the System1v2 board, but not managed to get the x, y and z axis steppers working, so tried a separate psu (20v, 3a Laptop supply), and managed to get some motion...

I am in the process of converting a Novamill to Mach 3. I have the machine and the electronics, and am trying to preserve as much as possible. I have removed the Denstep board from the Baldor F391 board. I have bought a System1v2 board (DIYCNC) for the Stepper control, using the 96 way connector on ...

I have just acquired a Novamill, with Electronics and am looking at conversion to Mach3. The existing Electronics have a Denstep Controller (shows as D281 with V2.1 firmware - shows s/n 0C00271100 label on the processor) atop a Baldor F391 Optimised Control - s/n 0C00270971 - for the Stepper drives,...