¶ 1. Problem description
When the self-test is started, the XY return to zero position is incorrect after the platform rises, and the extruder crashes into the frame when the self-test program proceeds to the leveling step.
¶ 2. Cause analysis
(1) When the self-test is started, the XY return to zero position is incorrect after the platform rises, and the extruder crashes into the frame when the self-test program proceeds to the leveling step.
(2) XY motor cable is not plugged in properly, resulting in one of the XY motors not rotating or less rotation.
¶ 3. Troubleshooting and solutions
①：Check the wiring of the XY-axis motor
If the terminal is loose, plug it in again and click homing to observe whether the printer XY-axis homing is normal.
Check whether the wiring at the X motor is intact and whether the terminals are loose.
Check whether the wiring at the Y motor is intact and whether the terminals are loose.
②：drive or main board damage
If the motor wiring is intact, it is suspected that the main board and drive are damaged, please follow the 2505 Error Trouble Shooting to deal with it