Thanks arran, I tried that yesterday but it doesn't work.

I think I solved!
I write the solution in case someone needs it: Just pick up Isoparms from both surfaces and put them togheter in the...

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Because of my bad explanation, I attach two images "before and after"...

Hi, I have a problem with the attaching of two NURBS.
One has got SpansUV: 10, 4.
The other one has got SpansUV: 10, 20.

Both of them match perfectly in the 10 Spans coordinate.
When I try to...