You can actually engrave plastic using a CNC laser engraver without any paint or ink. And here's how it works..
The laser beam is directed onto the surface of the plastic and it melts away in steps. The laser is turned on and off very quickly, so that only a small amount of material is melted at any time. This creates a series of concentric ridges around the outside edge of the hole
You can then use an engraving tool to cut out each shape, using less than 1% of your original material as waste
We've been using our CNC laser engraver for years now, and we're really pleased with how easy it is to use!
cnc laser engraver o plastic