Summary

I originally made an engraved eagle on 3mm plywood. 80% power @ 350 speed, greyscale with 200 lines. Took 1 hr and 42 minutes.  Image was generated from AI - in the xcs program.  Wanted to get a better contrast, so I put about 3 layers of white acrylic spray paint on my plywood.   To reduce degree of burn and not knowing how many passes to remove paint, I reduced power- 50 & speed - 350 - greyscale and 100 lines, to see the effect on each pass done. Probably could have done only 3, because not much difference.