The Arduino gShield is a complete hardware solution for Dank's CNC motion control system called grbl.  The gShield is also used in the Inventables "X-Carve" CNC machine.  The gShield is also a good choice for any Shapeoko based machine. 

• Description

  Create your very own Arduino-controlled 3-axis CNC machine with the gShield. The gShield for Arduino (formerly known as grblShield) is a complete hardware solution for Dank’s CNC motion control system called grbl. The gShield is compatible with the Uno and other 328p versions of the Arduino development platform. Version 5 is now compatible with running TinyG on the Arduino Due. The v5 power jumper simply allows the gShield to be run as a native 3.3v device from the Due, instead of a 5v device.
  

  
  Features:

  • 2.5 Amps per winding
  • 12-30 Input Voltage
  • Open Pin Pass Through
  • 8x Microstepping
  • Screw Down Terminal Voltage Input
  • Hardware 3x Axis (x,y,z)
  • 3x Robust TI DRV8818 Stepper Drivers

• Technical Details

  GShield Schematic

   Dimensions: 58mm x 78mm / 2.3" x 3.1"

  • Board Thickness: 2mm / .08"
  • Weight: 31g

  For questions and more information on the GShield, check out the Synthetos Forums!