Grbl is a no-compromise, high performance, low cost alternative to parallel-port-based motion control for CNC milling. It will run on a vanilla Arduino (Duemillanove/Uno) as long as it sports an ...

The proprietary control of CNC machines results in the inability to control and enhance inputs because the program codes cannot be modified owing to their distribution by vendors in the compiled form.

Arduino-Nano-GRBL-Shield This CNC Shield was designed to replace a "Stepper Bricklet" from Tinkerforge. It is much larger in size, but the four screw holes are compatible in size and placement.

There’s extensive documentation, GRBL settings, and more pictures in their GitHub repo, too – in case you have a similar CNC and would like to learn about upgrading its controller board!

The machine uses a ‘grbl’ controller, which has an Arduino-based circuit that includes multiple outputs, including a powerful 24V pwm signal that is generally used to drive a 60-80W spindle motor.

Arduino UNO, GRBL Shield, Stepper motors and drivers, Servo motors, Gaming joystick, Aluminium Extrusions, GT2 timing belts, Nut bolts, threaded rod, POM Wheels, linear rails, etc.