Until yesterday I have been cutting and engraving 3mm methacrylate without problems with 60% power and 9 speed in a 60Watts laser.
Today trying to cut a box I have observed that the vectors come out jagged, that is, as if they were saws and the design sent is clean, with few nodes and well defined as you can see in the attached LightBurn capture.
The machine apparently is fine, the mirrors I think fine and the height of the cutting table the usual for this material.
Someone could tell me what I might be doing wrong?
Thank you very much for your wise advice.