Suggestion(s) please??

 From:  DannyT (DANTAS)
4325.6 In reply to 4325.3 
Hi Felix,

What I can understand is if you're wanting one continuous surface you need to have continuous construction curves, at the moment you have corners where you have joined two curves to make one, this will also create separate surfaces like you're showing .
If you select the joined lines and turn on the control points (Edit>Show pts) you can see where the two curves join and create a corner, there is a control point.

Add two control points (Edit>Add pt) either side as close as possible to the corner point, zoom up real close, in doing that you won't loose much of the original shape, then delete the corner point.

Once you've done this with all the curves, when you create a surface it will be one continuous surface.

I've also attached a 3dm file, is this what you mean?