This article applies to:

xTool S1 with all laser modules.

Issue description

Upon powering on, if you see the z-axis with the laser module plummets to crash on the material, the x-axis lurches forward bumping into the side frame of S1, or the y-axis jolts forward hitting the front frame, follow this guide to troubleshoot the issues.

#1 Check and clean the limit sensors

• As S1's position limit is determined by photoelectric sensors, any dirt or dust on the sensor surface will deceive the sensors into falsely detecting a stop, resulting in a collision.
• Check if the X-axis, Y-axis, and Z-axis limit sensors are tainted. Clean the sensors with a blower, vacuum cleaner, or non-woven fabric, but avoid using liquids for cleaning. 

X-axis limit sensor: the left end of the x-axis gantry

Y-axis limit sensor: the top-left corner inside the machine.

Z-axis limit sensor: the bottom of the z-axis plate (bring down the laser module to see).

#2 Secure or replace the limit sensors

• Check if the fixing screws of the position limit sensors are loose. If so, reconnect the sensors and secure the screws.
• If the issues persist, replace the position limit sensors. Contact xTool Customer Service at support@xtool.com for replacements.

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