The 3040 or 3020 CNC router is a popular Chinese machine used by many hobbyists — and for good reason. A rigid all-aluminum frame, decent stepper motors and pretty good resolution? It’s not a ...

Mach3 is the software being used to control the CNC Router. It communicates via parallel port with a 3-axis StepMaster motor driver board that can handle providing 24vdc to the stepper motors.