Laser Power Scale Test Pattern File for LightBurn - Test Your Laser's Power and Speed Settings. Included are grayscale fill and script letter test patterns. That's right, two test patterns included for the price of one! The test patterns were created in LightBurn and are scalable for use on any size material your laser bed will support. The power and speed ranges are a good fit for a diode type laser but adjustments can be made to work with CO2 lasers. Use the power scale on a test piece of material prior to engraving so that you can find the best settings to produce the cleanest products. I have used these power scale files for engraving ceramic tile with the Norton White Tile Method, and other materials including cork, slate and wood. If you're looking to produce professional results with your laser, these files will become a necessary tool in your production process. Update 5/31/2023: We have added an additional lower power range grayscale fill test for use on more sensitive materials (paper, cardboard, cork, etc) This can also be used on higher power machines to avoid the use of powers close to 100%