i saw this project online and loved it this was a test run i just used what i had at home to test instead of buying. 16 x 16 mirror with 3/4x2redoak used to make shadowbox i have d1pro40w mirror engraved at 50%power and speed 60mm/s 3 passes this took almost 5 hrs. to engrave but the engraving was awesome i will have to check other setting to see about faster results. for a trial project it came out very good and i will be building more but plan to buy shadowbox prebuilt and mirror that fits in it.