Question for fillet-edge on curve edge

[newer_student (PF)]

Hi, sorry for disturb
I have some problem about fillet-edge.

In this picture,Object A is my object that I want to fillet-edge. But after I fillet-edge the edge radius become Object B.
If Rhino can’t perfectly solve this problem, maybe Grasshopper can. I’m new to Grasshopper, and I know there’s a component called “Fillet Edge”, but I’m not sure how to connect the components properly.
Can anyone help me to solve this problem? (I’m aiming to find a Grasshopper-based solution.)

Thanks a lot

grasshopper question.gh (15.8 KB)

rhino question.3dm (268.6 KB)

[martinsiegrist]

Does this look any better?

[newer_student (PF)]

Yes,thank you very much I know how to fix this now. This solution base on rhino right? But you know how to use grasshopper to fix this?

[martinsiegrist]

So how would you solve it in Rhino?

[Ali_Najmaei]

The main reason you get an error on Fillet component is that fillet edge input accepts edge index that exists in your Brep , you shouldn’t connect your curve (edge) directly

[Ali_Najmaei]

This is the Grasshopper approach :

Fillet_edge.gh (13.5 KB)

[Tom_P]

which design / details are you trying to achieve ?
filletEdge will extend the underlaying Surfaces like this:

the resulting fillets will not intersect to give a nice result.

you can foul filletEdge with a trimmed surface that allows nice intersections:
start with curves that intersect (blue) and offer enough space for the radius of later filletEdge

extrude each curve separately and trim the surfaces (not the curves)

now filletEdge can find the correct surfaces …
so it s also a design / geometrical issue that has to be answered before we can discuss how to achieve it in gh.

kind regards - tom

[newer_student (PF)]

Thanks a lot

[newer_student (PF)]

Thanks for your explain