The Arduino CNC Shield V3 is an expansion board for Arduino Uno, enabling control of up to four stepper motors for DIY CNC machines, laser engravers, and plotters.

• Expansion board for Arduino Uno.
• Controls up to four stepper motors (X, Y, Z, A axis).
• Utilizes GRBL firmware.
• Supports A4988, DRV8825, and other Pololu-compatible drivers.
• Features limit switch inputs, spindle/laser control, and emergency stop.