Nice hack in converting a 3D printer to a laser cutter.
http://www.3ders.org/articles/20131104-turn-your-3d-printer-into-an-instant-laser-cutter.html
Nice hack in converting a 3D printer to a laser cutter.
http://www.3ders.org/articles/20131104-turn-your-3d-printer-into-an-instant-laser-cutter.html