Hi @menno ,
today I was teaching Rhino to an Interior class and we were working on a stair made (hipotetically) of wood plank.
The main issue is in the lower part where the side frame is slighlty longer than the side part.
I tought to use FilletEdge to smooth a bit the corner but I got this error on some of the fillet.
I think is a known bug/issue but would be good if this can be solved for version 9.
At least add it to the pile of example where the FilletEdge struggle.
20251002_FilletEdge_bug.3dm (900.8 KB)
Splitting the parts to have the fillet working on the same width solves the problem but it requires multipolel extra steps.
Thanks for looking into it.
Riccardo
PS: this file is in V9 but I got the same exact result in V8.