After some issues last week with my K40, it started to work. Yesterday I made a cutting board test for my father’s brithday. Today when I tried a second test, I’ve noticed that there’s ghosting or additional burn beside the center point. In picture you can observe that beside the expected point there’s a curved line.
I have cleaned all the mirrors, checked if centered, and all are fine
Cleaned the focal lens (the one on the bottom) and the mirror in the laser head (the top angled one) but no cracks or debris.
What can it be? I checked all Youtube advices and followed them accordingly, I have checked Don’s forum but I cannot find a simillar issue.
I will provide additional information if necessary but at the moment I cannot understand what’s happening.