Firstly, thanks for trying to help me with this issue. I've used Hex 2 in the past and know my way around the program a bit, so I've done quite a bit of welding of edges and points.
However two curves which are seen in Hex as 2 separate curves, I don't see how they can be welded together.
Step one select both curves.
Step two, change to point selection.
Step three choose one point and select the weld function.
It doesn't work.Hex doesn't allow me to select points from two different curves.