A crown try on the chuck

With a kitchen paper tube.

cool, I need to try something bolean too

No bolean, just increased the height of the shape (Y axis) by .2 mm (no noticeable overlap) and it worked.
A test to see how Lightburn algorithm works. In my next cutting test, I’ll select the cutting direction from right (in my case) so that the piece doesn’t fall before all the cuts are made.