Plate simulation

Hi.

I know this is a pretty simple thing to do, but I can not figure out the error.

I am trying to simulate a simple plate structure, similar to the paperstrip-clip on SpaceSymmetryStructure. I have set up a mesh, extracted lines and removed duplicates. 

The tried to set up bending resistance in the U and V direction, but there seems to be a problem with my lists or something. I guess I dont really know the structure need for the inputs. 

My springs is in a list, my bendlist in two different tree structures, but looking at example files, it doesn't seem to be a problem. I have tried the older plate and shell example file, but my version is too new I think.

Anyone who knows what I am doing wrong? And maybe can tell me the basic idea about the input structure?

Cheers Rasmus