1. Machine cannot return to the starting position accurately after work is completed.
2. Two repeated carvings cannot coincide.
3. Can't carve out the same pattern as the one displayed on the software, with displacement and distortion.

1. The gear connecting the motor is loose.
2. Motor current too low。Motor do not have enough power to move. try Adjust motor current
3. Speed or acceleration is too fast.

Please noticed, not all screws are shown, this picture just is a tips.