This Lightburn file is for a generic 300 x 300 mm grid layout to help you align projects. It is suggested that you set origin at center after laying out your spoil board, then set Lightburn to “Start from current position” after you have positioned the laser on the center point.
Burn settings are for a 5 watt output laser.
There is a secondary “square” of 4.250″ for ceramic tiles. This can be removed, if desired.