So this is my build of the MPCNC:
It’s running a modified version of grbl on a MKS BASE 1.5 RAMPS board.
I’ve modified the firmware to clone the X axis movement plan to the Extruder 0 stepper driver, and Y axis gets cloned to the Extruder 1 driver. This means that each motor has its own dedicated stepper driver and I don’t need to bother wiring up the axies in serial.
I need to mess about with it a bit more as the machine isn’t properly squared, but it’s working pretty well so far.
I’m currently on the search for a spindle as the recommended dewalt isn’t available in 240v.
A big thank you to Ryan for designing this. I was pretty impressed with how all the parts went together. It must have taken a lot of hours to get it all right. The centre gantry design is quite clever.