What do I Need to Upgrade to AR4-MK3?

To upgrade your AR4-MK1 or MK2 to the MK3 version, you need two core components:

1. J6 Housing and Gripper Mount
   (This part adapts your existing arm to the new MK3 assembly)
2. Complete AR4-MK3 stepper motor, driver & power supply package
   (Order this factory-direct package from StepperOnline for guaranteed compatibility)