Hi,

So im trying to turn that wireframe into a 3D surface,

I can't use revolution since the bundary isn't symetrical

I found this video where "boundary surface" is used to create a surface from 2 connected open spline, but mine are looped so i can't manage to make this work

I tried to split the splin so they will not curved into itself when lofted, the plan was to do as shown in the video for the 4 faces with tangent constraints on all edges, but even splitted in the sktech i can't manage to select a part of the spline in the loft command, it always select the whole sketch

Any idea on how to do this ?

Many thanks