Not having much luck actually cutting stuff out with the laser,
Really depends on the wattage of the laser. My first laser was a 25 watt, which was okay for light engraving, but sucked for everything else. I upgraded to a 400 watt, which will cut up to 3/4" thick, which I enjoy and use a lot. I also have a 60 watt, which will cut up to 5/32" with several passes.