This is a CNC control box (work in progress) for the 3040.

This is a CNC control box (work in progress) for the 3040. I decided to use parts from an old PC case.

Components used:

  • ArduinoDue
  • Synthetos gShield
  • Chinese 400W spindle motor with driver board
  • 30V DC power supply for stepper motors (and temporarily the spindle motor)
  • shielded cables
  • some 3D printed 5mm washers to separate electronic boards from metal case

To do list:

  • wiring cable shielding to the metal case (and earth)
  • adding relay to control spindle ON/OFF with Arduino and g-code
  • emergency stop
  • 220V connections
  • connecting limit switches, spindle PWM, probe to Arduino pins
  • connecting 48V DC power supply for the spindle motor, after it arrives from China

Nice setup. I never thought about using an old PC case side to mount everything in.