By the way, I thought that PVC (and ABS) are frowned upon in the lasering world, although they’re both listed in your library.
PVC can in fact be cut with laser, however, the thermal process produces hydrochloric acid that can corrode your laser system and heating it emits toxic fumes. ABS Emits cyanide gas.
Here’s a link to a PDF that lists dangerous materials for laser cutting and engraving.
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwiX5ertr7_5AhX9TDABHc3mBjgQFnoECAsQAw&url=https%3A%2F%2Fcpl.org%2Fwp-content%2Fuploads%2FNEVER-CUT-THESE-MATERIALS.pdf&usg=AOvVaw3Hkxs1y9K3h16BEz_FpvVY
Here’s a link to my post on testing plastics for chlorine before cutting (Beilstein Test): Detecting Chlorine In Materials To Be Cut
Jerry Kornbluth