Traversal lines burning in my design

[Rick (Technical Evangelist)]

You have not said what you are using to drive your laser and the picture you show is covering the console window. I have not heard of the “cowboy21” laser before. Please update this, we provide this in your forum profile so we don’t have to ask each time you post.

You likely don’t have laser mode enabled in GRBL ($32=1), which would make the spindle PWM output ramp slowly instead of instantly, among other things. The spindle PWM output is used to set the laser power. This might be a helpful read (assuming you are running grbl): Common GRBL/GCode Setups - LightBurn Software Documentation

Laser not turning off between cuts? (burning during travel moves)

If you have a GRBL device, and your laser is still on when moving between shapes, like this: [image] 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 …