@rustyssjones, the ramp is really to find how many passes would override the effects of curved materials.
I was trying glass like Tip for laser cutting complex designs // use glass but only had picture frame glass nearby…
So the ramp was a test for evaluating the effect of focusing errors.
In tetrapack milk packages there is often a 5mm focus variation
(it all started with the Snapmaker contest, will post results after meeting some zombie deadlines)
About Luban: reported the error and got an answer that next version it will be working. Probably one of those things no one noticed it stopped working.
About your model:
already have your .nc, you shared it already–THANKS–, and I have another suggestion:
mix the squares and the curves (a corner of the square with an arc) and it will address curves also
(theoretically the speed is the same, but in practice no)
and the cuts in the overcooked areas will be more solid (they burn away sometimes).
And please publish it in Thingiverse, many people will appreciate your effort,
and move on to other improvements.