I'm NOT using a YAG. I'm using a CO2 and acrylic. If I was using Plexiglass, I'd be using a YAG.
Wavelengths I have here in my labs (multiple sources for some):
410-700nm (a few)
632-635nm (a few)
All of these listed are Class IIIb or Class IV.
Some galvo-controlled, some with linear stages, some on multi-axis controllers. Our largest lasers here are bigger than most import cars.
Water makes acrylic bow the other way on stuff this thin. Did you know you can also use a light spray of water across the top by using an airbrush during cutting to improve the finish quality?
Ummm......I'm pretty well-versed in lasers. I design and build custom R&D laser systems for hp. I designed and built the system I used to do these. I'm just not really serious enough about this project to waste my time with any setup. Slap it on, cut it, and relax them in the oven for 10 minutes afterwards. Works great.