I am using Solidworks to model surfaces, which I create from splines. I have been successful so far with creating a boundary surface between 5 splines. Since increasing the resolution to use 10 splines I am getting an error "the feature could not be created as it would produce self intersecting geometry". As the splines themselves are not self intersecting I can only assume they are too complex for Solidworks - or I am doing something wrong!
Any ideas would be appreciated. I can get around this problem by creating two adjoining boundary surfaces, however its not ideal as the surface is not continuous at the join. I've attached the file for reference.