Have a look at this image:
The result obviously doesn’t follow the preview, by quite some margin at that.
I suspect the reason is because the FilletEdge has to blend across an entire surface (highlighted in red below) within the polysurface:
Is this expected behavior? (Just curious for future reference.)
Does anyone have any suggestions here apart from the long workaround of untrimming both surfaces around the fillet and trimming and joining them together to perform the FilletEdge (without TrimAndJoin) and then trim to integrate the middle fillet once more?
chord.3dm (298.8 KB)
(Oh, and I’m using DistanceBetweenRails at 2mm for this.)