Advanced 3D printing with grasshopper - spiralizing

Hi guys,

I have a problem with spiraling a fairly simple web pattern from the book “Advanced 3D-Printing with Grasshopper” for the print path. As recommended in the book, I am using the strategy from pages 96/97. Unfortunately, I only get a path that is no longer symmetrical (shown in green in the image). I just can’t find the error. I have attached the file. I would appreciate any suggestions for a solution.

Thanks!

Bildschirmfoto 2024-06-14 um 07.27.18

Woven_Spiralize.gh (36.0 KB)