Great article and build. The only question I have is how does the author deal with the gases being produce by the piece while it's being engraved/burned.
A simple XY laser engraver/cutter
Build in 'Laser Cutter Builds' published by HPB, May 31, 2018.
A simple low-cost XY plane laser engraver/cutter inspired by the Much 4 laser build, with minimal parts and assembly time. Uses standard off the shelf components in almost 90% of the build with the exception of the axes motor and wheel mounts which need to be 3D printed.