I used one slate to run two different power tests on a test tile. One on each side. From a tile burn Grid This one really helped me understand the range of marks we can make on a slate. The following is the grid out of LightBurn and it was not as much help: There is quite a range of marking you can do. I feel that it will allow some interesting effects. I only needed one "tone for the project I am doing." I did one test slate at 2000mm/min and 40% power for my 10W laser. The design did not look right, so I changed the design slightly, and here is the finished project. Finished Slate Coaster Added Logo on the bottom I changed the speed to 1800mm/min and 40% power for the final project. It slightly deepened the engrave. The slate's top took about 16 minutes, and the bottom logo took 2 minutes. The setup is straightforward. In Lightburn, I created two concentric square boxes on one layer that I do not burn. These are for reference and alignment. One is at 100m