Turns out a misaligned mirror made the laser hit the lens in a weird way, and then bouncing off something on the way out to produce this double line. Probably. What kind of strange troubleshooting have you done and what was the reason/fix?
Is the glass separating from the mirror layer or something? I’ve never seen anything like this but it reminds me of the double reflections you get from mirrors with thick glass.
Or maybe it’s so misaligned, the laser is hitting the edge of the mirror…?
The mirrors seem fine. I don’t really understand it but aligning the mirrors made it go away.
Could it be hitting the nozzle? That would be a very minor misalignment so it might be hard to notice
Could be. Is there an easy way to test that? For the mirrors we had pieces of paper to see where the laser hit.
To me this looks like it could be due to backlash. Did both lines appear at the same time, or are they from two different passes.
One pass. What does backlash mean? (I’m kind of new to this) Aligning the mirrors did stop it from happening again, but maybe that was accidental?
