Troubleshooting motor vibration and failure to rotate
1: Loosen the gap-eliminating nut appropriately and reinstall it without locking it too tightly.
2: Use grease to lubricate the z-axis screw and slide rail
3: Tighten the z-axis shock pad screws, reinstall the motor and wiring
4: Open the cover and check if there is resin leakage
If resin leakage: Open the cover, please provide internal photos to determine the damage in detail and confirm whether parts can be sent for repair.
If no leakage: After step 123, it should be solved (machine wiring is loose or lack of maintenance);
If still abnormal, replace a new screw motor + wiring + gap elimination nut