Here's one part of a multipart vid using an 80W co2 laser.
https://youtu.be/GhHchkRLt7I
https://youtu.be/GhHchkRLt7I
Steve - That 80 Watts would be more impressive with a ZnSe expander.
My old star warz gun has two different expanders.
I set fire to a piece of cardboard in my basement from 35'. My wife was NOT impressed...
HM