NEMA 17 motors with 4 wires scheme: #### A4988 wiring with NEMA 17 bipolar motors (4 wires) Both motors are wired to their own A4988 * VMOT/GND external power supply - GND can be shared with the rest ...

Uses Arduino Mega, Nema 17 stepper motors (1 for X axis, 2 for Y axis, 1 for Z axis) and hobby servo for operating the claw mechanism. 2 endstop switches for X and Y axes, 1 for Z axis. LED lights ...