A discussion about engraving leaves on the LightBurn forum prompted an experiment with a seasonally appropriate motif:
Those ran at 500 mm/s with 8 to 10% power, respectively the fastest speed & lowest power for my 60 W CO₂ laser.
The mmmm material has obvious irregularities and doesn’t lie flat:
A closer look:
The line interval is an absurdly large 0.5 mm to keep the leaf from falling apart, as the laser burns almost completely through despite the low power.
I thought about scattering a bunch of these along the driveway, but came to my senses just in time …
The Smell of Molten Projects in the Morning 