1. One axis or thre axises were all not moving, also sometimes not perfect-moving.

Solution:
(1) Controller card was loose; (2) The equivalent axis driver was wrong; (3) The equivalent axis stepper motor was wrong; (4) The equivalent coupler was breakaged/loosen; (5) The equivalent lead screw was breakaged/loosen; (6) The equivalent slider was wrong; (7) Driver’s MICRO/ELECTRICITY was different as in the software.

2. Z axis out of control

Solution:
(1) Controller card was loose/wrong; (2) Electrostatic interference; (3) Z axis’s Motor line fault; (4) Files route was wrong; (5) Transducer interference; (6) The computer was wrong; (7) Misoperation.

3. Mistake was bring

Solution:
(1) Controller card was wrong/loose; (2) Driver was wrong; (3) Stepper motor was wrong; (4) Motor line fault; (5) Electrostatic interference; (6) Data cable fault; (7) Files route was wrong; (8) The equivalent coupler was breakaged/loosen; (9) So fast High-speed; (10) Computer wrong/virus