I've cut plywood that thickness with a CO2 laser at 150 Chinese watts (closer to 140 SI watts). It takes several passes, and you would want a lens that makes a parallel beam. Most laser cutters come with a lens that focuses the beam to a point. That's good for thinner material, but not something this thick.
It's not great at it. Might have a lot of char. But it's possible.
I've cut plywood that thickness with a CO2 laser at 150 Chinese watts (closer to 140 SI watts). It takes several passes, and you would want a lens that makes a parallel beam. Most laser cutters come with a lens that focuses the beam to a point. That's good for thinner material, but not something this thick.
It's not great at it. Might have a lot of char. But it's possible.