Adapt code to suit the needs of Open Source Ecology
This script does 3 things. First, it takes out the z values generated by the DXF to G-code Converter (not needed in a 2-axis motion system at hand). Second, it starts a pierce by moving towards the center of a hole. Third, it rotates the torch around a small radius (.05") during preheating. The number of rotations is currently 8, but one should be able to modify this.