I tested the xtool p2 Desktop laser cutter on a slightly larger engraving.
Speed ​​600
Power 45
Duration of engraving 30 minutes.
Afterwards I waxed the board and it turned out really nice.
You can download this last supper file at this link: www.etsy.com/listing/14671324...
Also check the xTool machines on this link: www.xtool.com/?ref=u7DQYgFmoF...
Or this link if you are from Europe: www.xtool.eu/?ref=u7DQYgFmoFw...