Wondering what materials you can cut. and what materials can you engrave? Can you engrave or cut into PVC
No PVC. PVC is bad.
There is loads of info available for googling regarding what is safe to cut with a C02 laser. This link has some good general guidelines:
community discussion here (and many, many more to be found if you use the forum’s search function):
Never cut or engrave on a material that you are uncertain is safe for CO2 lasers. You can harm yourself and/or the Glowforge. Vinyl and PVC is especially toxic to lasers.
Check out #4 and #1a:
But really it’s all pretty useful info, rummage around.