This was posted on Facebook, I haven’t tried it:
- Connect your computer to your snapmaker with the mini USB cable
- Open the snapmaker luban software and connect to the snapmaker through serial.
- Type in M502, then press enter (this resets the printer to factory default)
- Type M206 X-17 Y-8, then press enter (this sets the homing offset)
- Type M500, then press enter (this will save the new settings)