When I burn a vector line art image I have found that when the laser is turned off and moves and then is turned on again to say 60%, it seems to ramp up briefly like 0.5 a second or less to 100% power then settle down to the desired 60%. This is causing a slightly bigger pit in the ABS im engraving at the very start of each section of the engraving.
I think its the laser power over shooting then settling down. I edited the gcode to see replace turning the laser off with a turn down to 5% for non etching moves using notepad ++ search and replace. Thinking it might be caused by the fact the laser is powered off. But still does it.
Have others seen this behaviour… Not a deal breaker but on fine high quality laser vector etches its annoying