<< @Tom - one thing I forgot to mention is that the way it works is it looks for endpoints within 0.00000001 of each other, not exactly equal. Usually it's not so good to compare floating point numbers for exact equality because it's normal for very very small differences to be there. But if you want you can adjust the tolerance value in the script>>

This tolerance should be by far enough in order to create perfectly smOoth surfaces out
of the curves.

The goal is to avoid bigger gaps as the surfaces created would have wobbling edges