*The Probe is a mechanical component of the Distance Sensor assembly.
Problem Description
When using the "Auto Measure" function, the software displays a "Probe Pop-up Failed" or "Probe Retraction Failed" error.
Why This Happens
The LX2 "Auto Measure" function relies on a mechanical probe—which is part of the Distance Sensor system—to detect surface height.
If the probe cannot move smoothly due to loose screws, misalignment, or obstruction, the system cannot complete measurement, resulting in the errors above.
Troubleshooting Steps
1. Verify Distance Sensor Calibration
Before proceeding with mechanical adjustments, ensure that the distance sensor has been calibrated correctly.
- Perform the distance sensor calibration by following the standard calibration procedure.
- If calibration cannot be completed successfully or the issue persists after calibration, proceed to Step 2.
2. Adjust the left limit rod to its highest position
- Power off the machine.
- Disconnect the laser module cables, distance sensor, and air hose.
- Remove the laser module from the machine.
Using an H2.5 hex key, remove the four screws securing the Laser Module Mounting Base, then remove the entire base.
Using an H2.0 hex key, loosen the limit rod screw. *Do not remove the screw completely.
Push the limit rod upward by hand to its highest position, then tighten the screw to secure it.
3. Reinstall the Laser Module Mounting Base
Reinstall the mounting base onto the machine and securely fasten it using the four screws.
4. Check the installation and locking status of the Laser Module
Install the Laser Module onto the mount from top to bottom.
Ensure that the bottom of the screw highlighted by the red circle is fully flush with the surface of the mount.
Press down the right-side handle to confirm that the Laser Module is properly locked in place.
5. Add a spacer if the issue persists
If the problem still occurs, attach a 0.5–1 mm thick spacer to the limit rod.
The spacer should have moderate hardness (neither too hard nor too soft).
Note
If abnormal noise is heard during Z-axis movement after installing the spacer, the spacer may be too thick. Reduce the spacer thickness and test the Z-axis movement again.