Hi, V5
0.75 rad fillet bar to cylinder , all four places, yet FilletEdge fails, then explode and try for FilletSrf, it wont let me pick the bars surface, only part of it..
mergeSrf shows the surface as one, but FilletSrf says no it isnt.
I can never get on with FilletSrf as what appears a surface only sees part of it get selected then the next pick is the ‘mating surface’ so thats no use.
here is the rhino file. fillet 0.75 fails edge or srf.3dm (3.5 MB)