I really need some help with this new cnc I just picked up.

Trying to get it running with Mach 3 but I’m having no luck at all, the bob is connected to my pc with a uc100, ive done all the installations correctly and I get both led’s when it’s connected.

The problem is setting up the motor outputs, I have no idea what pins are for what because I have no documentation. If anyone has any ideas please let me know.

Thanks