Originally Posted by
Rodney Gold
The flutes in the corrugated carboard duct away the air assist and actually will promote flaming Be aware, you will get a charred edge on the cut whatever laser you use anyway.
The thickness of multilayer board will be an issue as the beam of the laser is focussed and it diverges away from the focal point. There is just a relatively small amount over and below the focus point where power density is ok for cutting , using longer focal length lenses will help , but will have an enlarged spot size. 10mm in carboard/paper consisting of multilayers will not be an easy task , the cut sides might have a curve as well , that follows the beam shape , thick stuff might cut like this )( and not like this ||. You would need quite a bit of power to have enough power density to cut properly. The cheaper glass tubes actually are worse as their spot sizes are large , a 75w RF co2 tube from synrad or coherent would be better, the beam quality is better. Maybe try a Reci glass tube?
I would imagine a reciprocating knife or some other system would be better than a laser for this application due to thickness