Sure enough, adding a small fan to blow across the wood made a significant improvement in cutting ability! I am now getting good cuts of the 3mm plywood with 8 passes on 100% power at 100 mm/min. I might still end up putting an air pump with nozzle on it, to better direct the flow right on top of the cut.
Next question...what software do you guys think is the best for cutting? I have only used T2Laser (trial).....wondering if there is anything else I ought to try before buying the T2Laser license?? Need to do something, as the trial restrictions on T2Laser are limiting what I can do....
Bencutlaser, it was created specifically for cutting. It is a superior product for cutting - as it takes into account cutting with grain and across grain. As nottingham posted you can select the laser power and speed for the lines/cuts.
When cutting elevate the material, I can cut through 3mm ply in 6 - 8 passes at 475mm/min without air assist, I keep the material elevated about 3mm