I did some cutting tests with aircraft plywood from local supplier and with some solid pine. Results are little bit puzzling. I hope someone could give me some tips.
My K40 is pretty much stock. I replaced table with something that is more correct level and I also added (really underpowered) air assist. I ran few 20mm lines and sawed material at mid point to see how deep laser really cuts with each power level.
For some reason after 20% there is very little change with cutting depth. Any ideas why this is happening and how to improve results? More powerful air assist help to push burn residues out?
I did these tests because this plywood seems to be really difficult to cut and i assume it has something to do with glue used between layers.