I can’t speak to the mechanics since I’m not a mechanical engineer. But it cut nearly completely cleanly at 14 passes. Definitely cut through no problem. It was clear acrylic, but the cut was… cloudy at the bottom of the cut. Almost looked like scratches. Basically it was a little bit of melt. I made several attempts to get a clean cut, but nothing I did made it clear. But really had no problem cutting through it though.
For that matter I once engraved 3/4" deep into 1" wood in a single pass. That was a little scary as it was a little… flamey. The air assist kept it at bay but, man, it was a scary run. I never did that again. Not even sure one can as the speed settings have changed since then. You used to be able to choose a much slower speed, but they (wisely) changed that.