Then something unexpectedly amazing happened. Maher El-Kady, a graduate student in chemist Richard Kaner’s lab at UCLA, wondered what would happen if he placed a sheet of graphite oxide—an abundant carbon compound—under a laser. And not just any laser, but a really inexpensive one, something that millions of people around the world already have—a DVD burner containing a technology called LightScribe, which is used for etching labels and designs on your mixtapes. As El-Kady, Kaner, and their colleagues described in a paper published last year in Science, the simple trick produced very high-quality sheets of graphene, very quickly, and at low cost.
Tiberius Brastaviceanu on 17 Mar 21"easily replicable design with stock components and minimal use of custom parts (unless they can be digitally fabricated with a RepRap class 3-D printer or CNC mill -e.g. limit to what is found in most fab labs and avoid high energy processes and a skilled machinist). The designers should seek to minimize cost and complexity while keeping throughput high (continuous if possible)."
