This is the first cut on fiber board. I had to make about 50 passes at full power to cut threw the 3mm depth. I used Inkscape & Laserengraver extension to capture the outline of a jpeg of the Jobs/Apple logo and then created the Gcode. Video showing the process with Inkscape to capture the outline and create the Gcode. After creating the Gcode in Inkscape I used G-code sender to send the NC file to the Grbl Arduino Uno to start cutting.