Sweep 1 rail failure

Hey

Can somebody help me to get Sweep 1 rail done? I have one closed curve for rail and T profile for shape but Sweep fails. In Rhino I can create it easily, but not in Grasshopper with the same curves - is there a problem with the T profile curve middle point location?

Frame T-bar.3dm (173.8 KB)

Works when the section curve is at the start end of the rail, so adjusted the rail Seam.


sweep1 _2024_Jul15a.gh (6.4 KB)

P.S. Rail and section curves are internalized so no need for Rhino file.

Thank You Joseph!

Seam component is new for me to use - You solved the problem :slight_smile:

Br Ants