here are several main reasons why one or three axes of engraving machine do not move or move abnormally
1: Loose or faulty control card.
2: The drive of the corresponding shaft is faulty.
3: Corresponding axis stepper motor fault.
4: The corresponding coupling is broken or loose.
5: The corresponding screw rod is broken or the screw nut fails.
6: The sliding speed of the corresponding shaft fails.
7: Driver subdivision, current, and other settings are different from those in the software.