Continuing the discussion from What are the most unique materials you plan to use?:
We have had a good discussion on the CDs themselves. What about the cases? A cheap source of material. It is polystyrene. What I note is that it burns being a hydrocarbon and leaves CO2 and water and soot. Flammable too. Anyone with laser experience use these?
Edit for clicking help: Here’s the link to take you to vimeo and all the other videos in his series “Can You Etch It”.