CO2 Laser That Cuts Sheet Metal : 7 Steps (with Pictures) - Instructables
DIY laser cutter build
OpenBuilds - DIY build of a Co2 Laser cutter/engraver 12x24 working area. This build displays great instruction on how this laser cutter/engraver was developed. Make sure to check out the build here:
A Home Made Laser Cutter For $700 | Hackaday
AlgoLaser DIY KIT Laser Engraver with Honeycomb Laser Bed, 5W Output Power Laser Cutter Engraving Machine for Acrylic and Metal, 12000mm/min Laser Engraving Area 15.7"x15.7" - Walmart.com