Nano Pro: Sudden Stop During Engraving

If your LONGER Nano Pro laser engraver suddenly stops while working, the issue is usually related to the USB connection or a triggered safety alarm. This guide explains the common causes and simple solutions to help you quickly restore normal engraving.

1. Check the USB Data Connection

A loose or damaged USB cable can interrupt communication between your computer and the laser engraver, causing the job to stop mid-process.

Solution:

• Reconnect the USB cable securely
• Replace the cable if it is worn or unstable
• Ensure a stable connection before starting engraving

2.Check Whether a Machine Alarm Has Been Triggered

The machine may automatically stop when a safety alarm is triggered, such as vibration, tilting, or unsafe operating conditions. When this happens, the red indicator light will turn on.

Solution:

• Remove the cause of the alarm (e.g., stabilize the machine)
• Wait for the alarm to clear and resume operation
• If the alarm persists, connect to your computer
• Open LightBurn or LaserBurn and enter $X in the console to reset the alarm

Conclusion

If the LONGER Nano Pro stops during engraving, the most common causes are USB connection problems or safety alarm activation.

Checking the cable connection and resetting the alarm with $X can usually help restore normal operation quickly. Maintaining a stable connection and safe working environment can also reduce engraving interruptions.