Rick, you are right, sorry.
Introduction: I’m running the laser on a Mac, at the first moment I’ve downloaded the Neje software but in the meanwhile i was waiting the machine I’ve start using Lightburn. When I’ve installed the neje software it excluded automatically Lightburn and I had to download it again. Did this I’ve tried to connect the laser to Lightburn and after many attempt I was able to do that ( also today when I connect it it takes some trials to connect but after this it works fine).
I’ve checked some video on YouTube finding out one of a guy from Slovenia, thinking that he was right I’ve changed the machine settings but I find out that some of that settings was wrong for me so I re change that settings and now the machine is not failing at positioning.
coming back at the point I’ve focused the laser and start trying to cut some 4 mm plywood but in some points, with 100% power and 300 mm/min 5 passes it was’t able to cut trough! And it took a lot of time to do also simple things like the laser is not at its whole power.