¶ 1. Fault Phenomenon:
After powering on, a homing exception occurs during the device self-test.
¶ 2. Cause Analysis:
- During installation, the Z-axis motor cable position is easy to overlook. It is common to power on the device after installing the structural components without connecting the Z-axis motor cable, resulting in an error.
- The printhead heating bracket is installed at an angle, causing nozzle deformation and triggering the strain gauge error prematurely.
- Nozzle oozing causes a homing exception.
¶ 3. Troubleshooting
¶ 3.1 Z-axis motor troubleshooting solution:
Do not plug or unplug cables while the device is powered on. Before connecting any cables, turn off the power first.
Pull the hot bed platform forward and verify that the Z-axis motor cable is properly connected before powering on.
¶ 3.2 Printhead heating bracket misalignment troubleshooting solution:
- Ensure the nozzle is in the latched state and properly installed.
- Loosen the heat insulation pad screws and correct the tilt of the printhead heating bracket using the vertical alignment guide of the nozzle.
- Lightly pre-tighten the right-side screw before tightening the left-side screw (Note: do not tighten all screws at once, as this may cause deformation and tilting on one side).
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