This is the same workspace I uploaded to the depth-first topic. Fortunately that gave me a reason to look twice because I’m not sure this toolpath would have worked.
It’s not the easiest thing to see. That two path loops stepping down a the vertical walls of a slot-like area that’s wider than the tool but still narrow relative to depth. The pic shows one of the paths missing from a couple of steps. Where it comes back at the bottom, that would require cutting through uncut material above – which might be extra challenging at the bottom of a deep slot.
slice-ok-preview-shallow.kmz (188.5 KB)
Shadow settings (true, skip, neither) had no obvious effect.
Slightly increasing the “leave stock” value solves this particular instance. Slightly decreasing “leave stock” still leaves a few missed circuits at the bottom, but at least doesn’t try to cut back under them. In other words, this behavior responds to small changes in ‘leave stock’ values.
Thanks again for making K:M available and continuously better.
edit: better with slightly larger ‘leave stock’ value:
You can see that it didn’t take much difference to make a difference.
