Why does Rhino have lots of issues in filleting complex surfaces while Solidworks usually fillets easily?

[maje90 (Riccardo Majewski)]

@jim

I posted this file 6 years ago when this thread first started :
FilletingTangents.3dm (339.9 KB)

It shows how to determine which surfaces need to be picked to create the fillets in a loop of tangent surfaces. If you change the fillet size from 1mm to say .5mm, you will get a completely different set of surfaces that are connected. The edges are completely irrelevant.
Making the strings of tangent fillets such as these would be easy to program, but McNeel doesn’t want to do it.

You are right. Manually is easy and fast, but boring to do as it feels totally automatize-able.
If both sides of the edge to fillet are tangent, it is doable with less than 200 rows of code:
(dirty code with many flaws, done for the lulz…)