Laser cutting but taking many passes
I recently got my 4w Emblaser A3 and got it up and running pretty easily.
The main thing I want to cut is 1/8"(3mm) plywood, 3-ply Baltic Birch currently.
I can cut it but I am needing 8 passes at 500mm/minute to make cut all the way through consistently, and even then there are a couple of places where it doesn't go all the way through.
I have tried refocusing many times, I tried changing up the # of passes and feedrate but I still seem to need 8.
I am attaching the bottom side of some test circles.
Can anyone tell if it just seems to be a focus problem or if there's anything else I might be missing?
The power is set to 3 amps.
Indications from Darkly were that they were able to cut a similar material in 3-4 passes.