By placing a thin film on top of a DVD (or any plastic CD shaped disc), and coating it with graphite oxide, you can literally print patterns of graphene using the laser in your DVD burner.

[Brain] wanted to mark some scissors with his Ortur laser engraver. The problem? The laser won’t cut into the hard metal of the scissors. His solution? Smear the scissors with mustard.

A Laser Cutter, sometimes called a 3D laser cutter, Laser etcher, or laser prototyping machine, is not to be confused with a Laser Printer (the thing that spits out paper with ink on it) or a 3d ...

However, relying solely on single-spot laser direct writing ... a process further enhanced by subsequent chemical etching.