Hi there.
I have a 40 watt GCC Spirit CO2 laser engraver and I am trying to cut through 1'4 plywood.
The problem I am having are the burnt edges of the cuts, they get all over your hands and are a mess.
I am using 100% power and a speed of around 1. I can cut through in 1 pass, but like I say, the edges are charred.
Any advice on how to eliminate the edge burns? I really didn't want to do multiple passes if I didn't have to.