The following are a few of the shield / boards that are compatible with GRBL. GRBL is G-Code interpreter that is able to run on small Atmel Micro-controllers like the controllers used on Arduino Boards.

Using GRBL (software) and these micro-controllers(Hardware) makes it very easy and affordable to build your own Computer Numerated Controlled Machines(CNC) .

Arduino CNC Shield – 100% GRBL compatible (USD25+ Exluding Arduino, Pololu Drivers , Shipping Included)

• Up to 4 Axis’s. (4th Axis can clone the X, Y, Z axis’s or run of the D12-D13 pins)
• Compatable with Pololu A4988 type drivers including the latest DRV8825 drivers.
• 12-36V Input Voltage. (Only the DRV8825 can run at 36V)
• Jumper to adjust micro stepping. Up to 1/16 micro stepper with A4988 and 1/32 with the DRV8825 drivers )
• Breakout pins for :
  • End stops , 2 per axis.
  • Spindle and Coolant control.
  • Abort / Hold / Resume
  • E-Stop

The Arduino CNC Shield is now available from our Ebay Store – http://stores.ebay.com/Protoneer

GRBL Shield – www.synthetos.com (USD70+ excluding Arduino,Shipping)

• 2.5 Amps per winding
• 12-30V Input Voltage
• 8x Microstepping
• 3x Axis (x,y,z)
• TI DRV8818 Stepper Drivers

Buildlog.net Stepper Shield – www.reactivesubstance.com (USD90+ excluding Arduino,Shipping

)

• Screw Terminals
• 4 axis
• Uses Pololu Drivers.

TinyG CNC controller – www.synthetos.com (USD130+ Excluding Shipping)

• On-board Micro-controller – Atmel ATxmega192
• 4-Axis
• TI DRV8818 Stepper Drivers
• 8x Microstepping