I’m using a MPCNC with ramps 1.4, but my 3D Printer broke down lately. So I was planing to do both Milling and Printing on my machine. I was wondering if it’d be possible to install two arduinos and ramps to the same Motors (everything but extruder). I’d build a switch to power only one of the ramps and would have two separate usb cables. My hope is to keep homing/autosquare on the mill and manually home one axis on the printer. Since my controller is quite cramped away, I think it would be easier to just change the setup(heated bed+hotend+extruder) flick the switch and use the printer usb cable instead of rewireing the ramps board. But the Stepper cables would be connected to 2 Stepper drivers at all time, even though just one is running. Same for the not duplicated axis endstops.
I hope I described my idea sufficient enough
Thanks for the help!