There is not very many steps to this project. I will have a lot more explanations.
Step 1: Engraving
To start out with anything. You will need a tape measure. You will use this to measure the rock so you can make the file to engrave the rock. Once the file is made for the rock to be engraved, you will place the rock into the laser bed. Make sure the head of the laser is exactly the same spot you have on the file. Once this is lined up, you are ready to start engraving the rock.