OK read before you jump on me LOL . I know its bad for the machine and your lungs ok , but heres the deal. I bought a pak of credit card size pvc cards. Didn't realize they were PVC when I bought them, wasn't paying attention to the description, and I didn't buy them with engraving them in mind. These are white cards, and I decided to engrave one to see what it looked like ,and wow they engrave really nice with a co2. there small cards and I probably would only engrave one on a rare occasion. But I really don't want to use my co2 so I'm wondering if one of those cheap diode lasers would engrave these cards. I'd put the machine outside and walk away from it while it did its thing. whats ya all think anyone tried PVC on a diode laser?