Prusa MK3 laser engraver / cutter mod

Your mother warned you: **if you play with your laser, you will go blind!** Please google laser safety before even considering using one. They cause permanent damage beyond just blindness. The high energy can react with some materials to create toxic compounds like hydrofluoric acid (see Wikipedia for deadly consequences). Don’t do it!

If you are still reading, this is an example solution for use with Prusa Original i3 MK3. It may not work for other printers. But I will share my learni