Weird Engraving Issue on Acrylic... advice please!
Hi all! I've been engraving shapes on iridescent acrylic, and tried using two different lasers but with the same Lightburn settings (engraving at 800mm/sec speed, 20% pwr, line interval 0.1000 mm/ 254 lines per inch).
Despite using the same settings, I'm getting very different engraving outcomes. I engraved the one seen on the left with a Nova Thunder Laser (6 mm nozzle), and the one on the right I used a OneLaser XRF (3 mm nozzle).
I prefer the density of the right engraving (OneLaser) compared to the left (Thunder Laser), which feels lighter and hazy. I've played around with power/speed settings, and line interval, but haven't gotten anywhere close. Would anyone have suggestions on what settings I could modify to get my Thunder Laser to put out a result like the OneLaser engraving on the right?
HUGE thanks in advance!
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EDIT: I realized I missed some important details thanks your comments. Here's the laser power info:
OneLaser XRF: 38-watt RF metal CO2 laser tube (about the equivalent of a 60W glass tube)
Nova Thunder Laser: 60W
Engraving on Iridescent Acrylic (extruded). I use sheets from Houston Acrylic.