Construction hull offset

Hi,

I am trying to construct an offset of a hull on different segments. The offset has to vary per surface (top, side, bottom). Now, if I manually offset the first segment, grasshopper fails to copy this to the other segments. Could someone point me in the right direction? Thanks in advance.

Felix
461 - Linesplan.3dm (285.7 KB)
spant test 12.gh (21.3 KB)