Issue Description

When this issue occurs, the laser head won't go back to the home position properly. You may see the laser head keeps crashing into the structure of the machine or simply won't work. If the machine is connected with XCS in the meantime, you may see a pop-up notification like below.

#1 Check the X-Axis Limit Sensor

#2 Check the Limit Spacer and Sensor Probes

When this issue is associated with the limit spacer or sensor probes, you may see one or more of the symptoms listed below.

• The laser head cannot reach the far left, and the limit spacer fails to get into the probes.
• The laser head repeatedly hits the left frame of the machine for approximately ten seconds.
• The X-axis homing signal indicator does not illuminate.

To address this, follow these steps:

1. Remove the magnetic cover of the laser head.
2. Inspect the limit spacer and sensor probes for signs of deformation. Straighten them if needed.
3. Check for any objects hindering the laser head's movement, such as cable ties or cables from the fire safety set. If any are present, arrange the cables.
4. Pull the laser head manually to verify whether the limit spacer could get into the probes.

#3 Check the Z-Axis Adapter Cables

1. Remove the magnetic cover of the laser head.

#4 Check the Cable or the Motor

1. Restart P2 and connect it through USB.
2. Open your browser and input the provided links in the address bar and hit enter to observe if you can effectively control the movement of the laser module.

• Move the laser module 100mm to the right:
  For Windows: http://201.234.3.1:8080/cnc/cmd?cmd=G91X100F10000&force=1
  For Mac: http://201.234.4.1:8080/cnc/cmd?cmd=G91X100F10000&force=1
   
• Move the laser module 100mm to the left:
  For Windows: http://201.234.3.1:8080/cnc/cmd?cmd=G91X-100F10000&force=1
  For Mac: http://201.234.4.1:8080/cnc/cmd?cmd=G91X-100F10000&force=1

3. If the browser returns "OK" but you are unable to control the laser module, please unplug and reconnect the X-axis motor cable as shown below, then repeat the above steps for testing.
4. If the issue persists, the cable of the motor or the motor itself might be faulty and should be replaced.

#5 Check the Cables of the Z-Axis Adapter Board

1. Please check the cables in the drag chain for breakage.
2. If you have a multimeter, please follow the steps in the tutorial video to remove the casing of P2, and check the electric connectivity of each wire of the 6-pin connector cable as shown below.

3. Please refer to the article to remove the casing of P2: https://support.xtool.com/article/949
4. If the cable is broken or damaged, please contact the after-sales team for cable parts and follow the link below to have the cable replaced.
   https://support.xtool.com/article/833

If None of the Above Works

If you have followed the instructions above and the issue is still not resolved, please read the article in the link below, collect the troubleshooting steps you have taken, and contact xTool tech support for further advice.