Fuzzy messed up photo engrave

Omtech 60W laser, Ruida 6442B-C
250 mm/sec
25% power
1/4" Baltic Birch, or Maple and Hickory solid wood, all the same
Engraving is as though someone sprinkled dust on it, pic enclosed
I am thinking it may be dirty mirrors. Am I maybe correct?


Dirty mirrors rob power, they don’t affect quality.

Thanks for reminding me.

This is one of the best videos I have seem to up your photo engraving game.

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