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Troubleshooting: Laser Keeps Firing During Travel Moves


Unexpected lines where they shouldn't be. Laser doesn't turn off when moving between cuts.


  • If you have a GRBL device, and your laser is still on when moving between shapes, like the image above, it most likely means you are using GRBL 1.1f or later, but do not have the controller in Laser Mode. Fix this by typing $32=1 in the Console Window and pressing Enter.
  • If you have a Ruida or other DSP controller and are seeing this happen, it is most likely a dying high-voltage power supply unit (PSU). The drive circuit that turns the laser power off and on tends to go first, before the part that controls the overall power level. Contact your laser's manufacturer for assistance on sourcing a replacement.