I suspected the laser was not as powerful as when I got it. On non-proof grade 1/8" it would cut clean through at 175 full power.
Now I have to go 50 full power to cut through.
I got out the proofgrade draft board and loaded the gift of good measure. Before cleaning the lens it barely made a mark.
After cleaning the 3 lenses / mirrors I tried again. It still didn’t come close to cutting all the way through.
This is a pro on full power. It was a pretty smart idea having the proof grade available for troubleshooting.
This laser has not been used much, as I cannot believe I have worn out the laser.
I haven’t noticed anyone else posting results like this.
ps: I recently also tried cleaning the distance sensing red laser window, no change. (so that’s cleaning 4 different areas)