Hi everyone,
thanks for your help so far. I am pretty sure all the end points are snapped together. Some of the shapes are quite simple. The only thing I can think of is that the edges vary in height as they were drawn along a series of 3D locus at spot heights, I am not sure if this will prevent it being turned into a surface. I have attached a sample file, I just need all the surfaces to have a thickness of at least 1500mm, they can be flat on the bottom or follow the surface - what ever is easiest.
Thanks again.
JJ
JJ Watters 3D Surface Help.vwx