Loft and rail problem, tangent

[atlantisLKQD4]

Hi

I'm trying to create a loft with a rail and it fails whatever I do with

Modeling Error: Rail(s) cannot be tangent to profiles!

The loft is to be between the profiles in sketches 1 and 2 and the rail it should follow is the arc in sketch 3.

The body will be one lug of a watch case and I need the loft to follow that arc to later blend in with the center section of the case that is not yet drawn in this example design.

Maybe I do something wrong but in general I think this should be a perfect example why to use a rail. Can someone help to get it to work?

Kind regards

Martin

[TrippyLighting]

Is this the geometry you are looking for ?

[atlantisLKQD4]

Not exactly, only the areas right of the blue arcs should be in the loft.

[TrippyLighting]

If you step through the timeline you should be able to follow how this was done.

I worked with surface lofts and a patch.

[TheCADWhisperer]

@atlantisLKQD4 

Examine the attached.

Edit:  I like @TrippyLighting solution better. (Examine from Front view.)

[davebYYPCU]

Need a bottom rail, to make anything work.

Split Trippy's body, with this surface patch.

Your very acute corner top point will annoy Loft.

Might help....