Wood is one of the most suitable materials to engrave. When exposed to laser light tree turns brown when choosing type of tree can be a variety of shades.
Most often laser engraved tree surface burned out leaving those places dark. Choosing the tree species, gives different results like:
Oak – after engraving becomes a dark brown.
Alder – after engraving becomes a nice brown color.
Maple – engraving becomes brown.
Walnut – are dark wood and after the engraving remains similar color
Mahogany – engraving time gaining a light brown color.
Ash – nicely burned leaving dark brown engraving areas.
Birch – received brown.
Engraving result depends on the density of the tree. Engraving the painted wood, paint layer evaporate the until reach wood layer.