Santa sitting with kittens reading a book on a slate coaster
prep your slate coaster if desired. I sprayed mine with just a matte clear coat before engraving. different coatings will affect the “pop” of the image compared to the slate
open the image in XCS and set your material to rock coaster.
check image sizing compared to your coaster.
reduce size to fit on the “flat area”, my coasters have a rough edge border i didnt engrave.
Ensure your image has been inverted before processing. align your machine and run software. I used the preloaded settings in XCS for rock coasters