Portal 2s Want You Gone Played by CO2 Laser

Want You Gone by Jonathan Coulton played by a Coherent 250W CO2 laser onto two ceramic chips. Inspiration for this video obviously goes to chjade84. I d been fiddling with lasers and audio for awhile, so I thank you for the specific idea and challenge, the chips came out really well The big difference between our videos is that while he s using the laser as an actual instrument, I m using the resulting plume (ejected material) as a speaker. Same principle as a regular speaker, except I m using tiny explosions instead of a vibrating cone. Sorry, mono only for now :) I realized early on that trying to raster a bitmap would never work, because the galvo sweeps would cover the entire area regardless of pixel brightness and configuration. All you get is a gray rectangle. So I took a jpeg, ran a trace program to make it into a vector, imported that into the software, and started it running the program. Once the galvos were moving, I started the audio playing, w br, br,