Original post by: Just Helping ,
The best way would be to use the extruder 2 output for the PWM it provides, since BoXZY does not use it in factory form. You could wire it right up, then you would just need to make a script in the firmware to control it based on whatever method you desire. Just keep in mind BoXZY has a CNC milling mode, so the script would need to be specifically connected to that mode. As it is, it disables all extruder pwm outputs in milling mode (when no head is plugged into the quick change harness).