I got my Ortur LaserMaster 2 for 3 days. an it was easy to set up with the Lightburn software.
I tried to make a stamp of 2mm soft rubber. It worket out great with a speed of 1000mm/min and 35% power and adjusted the laser focus. I printed one stamps and it looked sharp and great.
But the next one, when i lookt at the laser when printing it semes the laserbeam start to grow and be out of focus. I stopped the printing and tried to adjust the focus. The focus dot (line) was as small as possible but it sems to be blurred 8-10mm around.
I tried to print out a new one with the same settinga and it was like it had melted a 4 mm track where the laser has gone.
I thought there maybe been some dirt on the lens and i removed it an it was fine but i cleaned it anyhow. After refocused i tried again and it was the exact same problem.
Can it be any software or hardware issues other than the laser diod that is broken?
Se attached pictures.