Toggle this switch to change the overall direction for Z moves. Most DSP systems have '0' as the highest point, with positive numbers moving the laser head further from the bed, however some systems reverse this. If you to not set relative mode, and do not set a material height, the default of 0 may cause LightBurn to raise your bed to a point where the workpiece could contact the head of your laser. For instance, if your laser's origin is in the back right corner, and the red dot is a bit further to the right than it should be, you can increase the x offset to move it to the left.Įnable Z Axis: turn this on to allow LightBurn to control the Z axis of your machine, IE the height of the laser above the workpiece.Įnabling Z control means that LightBurn will always emit Z values for a running job, and therefore requires that you set either the 'Relative Z moves only' toggle below, or a material height value on the main cut panel. Increasing the value will move the red dot further from the origin, and decreasing the value will move it closer to the origin. If your laser has a red-dot pointer that is not aligned with your beam, you can enable the Laser Offset value to compensate for this when framing and positioning.

If your laser output is mirrored horizontally or vertically, move the dot to the opposite corner, horizontally or vertically, depending on the direction that the output is mirrored, and that will correct it. If you have a DSP laser, like Ruida or Trocen, the origin is usually where the limit switches are placed, and will will be the corner the laser seeks when powered up. If you have a GCode based system, this is almost always at the front left, regardless of the location of your limit switches. This is the origin corner or 0,0 location for your laser. Note that this setting on GRBL & DSP devices does not affect the laser itself, it's just to tell LightBurn how large the work area of the laser is. Set this to the maximum X and Y travel for your laser. This is the working size of your laser bed. Device Settings Device Settings Table of Contents.

Lightburn grbl settings