![[Other,Laser cut and engrave] Laser Engraved Black Acrylic Speed and Power Test Grid with QR Code](https://storage-us.atomm.com/resource/xtool/community/attachment/xtool-community/21914288-1976-49a1-8861-95ba24b28247.jpg?x-oss-process=image/resize,w_1200,h_900,limit_0/interlace,1/format,webp/auto-orient,1)

Just received my F2 and did a test card based off a similar layout that another creator did for the F1.
This is using IR settings for a black coated aluminum card. Includes QR code to the xTool materials listing. I did not bother doing one for blue diode as I think the IR is the preferred laser to use with metal. If people really want it and request it, I will do another for the blue diode laser.
As with any engraving of this type, you may find a clearer result to review, after wiping/cleaning the surface with a little alcohol or cleaning solution.