When Outlining, I want to be able to do a cutout of the part. Slotting AL doesn’t seem to be an option for my Sherline 5810, with a 3mm endmill, so I’m doing two passes, with a 0.5mm offset, to allow the chips to more easily clear. But the first 3mm wide pass should ideally be farther away from the part, and the 0.5 mm cut should be against the part, for best finish. But this order seems random, at least after one gets to the tabs. I’m getting usable parts, but wanted to report this.
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tabs will randomize cut order. it’s a known bug and not easy to resolve given that unclosed polygons do not have a proper concept of clockwise/counter-clockwise.