1. If the lead screw is piled up or stuck, you need to clean and re-grease it.
2. If you hear abnormal noise during the operation of the Z-axis lead screw motor, this may be a maintenance issue.
Dust-free cloth
Tweezers
Grease
1.Power on the machine, remove the printing platform and the material box, and place an A4 paper on the LCD screen to prevent foreign matter from falling on the exposure screen.
2.First reset the machine to zero, click "Move Z " - "Z axis zero point".