Hello. I have just assembled a cnc laser machine, this has a 15 W laser with a electronic box, I wired as by istructions the laser and fan to control box, TTL to laser box and Laseraxe control board and finally power to control box by coaxial jack and to the 7W plug on the Laseraxe board (not the one normally used for lower power laser).
Laser did not light up! I make some tests and it only lights up if directly wired to the 7W plug on Laseraxe control board, maybe the electronic box which control laser? I have misured no voltage on the laser plug on this box.