My laser module stopped and burned for a few milliseconds

When cutting, are the burn spots only in the corners?
If so, make sure your device profile is set to “GRBL” so laser power will automatically reduce according to the speed at corners and not “GRBL-M3” which does not support that mode.

• LWE

  : Not only in the corners, but also in the center and anywhere else, yes, my configuration is indeed correct in GRBL.