Newbie here. Bought a used Emblaser a4 and played around for a while before trying this with Pic Engrave Pro 5 with a 3w laser on a bamboo cutting board. The face is a logo for Mad Monster Magazine. I made this one night and then upgraded to the 4w the next day but now having issues getting the same result with the same settings - probably a focusing issue. But still learning so, no big deal. Thanks to everyone posting tips and tricks - they help a lot!