Jim Jakosh 
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Hi Alex, at 85% power and 150 mm speed, it engraves about .025" deep..so it is  a depth engraving to a degree!!
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Just asking JJ as I'm a great fan of Timbermate infills on laser engraving.  I strive for about 1mm deep so I can sand away without concern of bottoming out.

If your first cut is too short... Take the second cut from the longer end... LBD