Help for universitary project

Hello Group, I’m asking for some help. My group and I are working for the first time in parametric: the project is constituted by a unique surface that, starting from the platform, generates benches and covers using slicing tecnique. So this is our problem: we fail to divide the surface, everytime we run into problems with the surface.
BRUTTO (13.9 K

please explain in detail what you are trying to achieve: what surface are you failing to divide? what is the outcome you expect?

you can embed screenshots the very same way you have embedded rhino and gh files

my mistake, sorry. i have to create a unique surface through the curves sections, then I have to slice it. creating a surface is the hardest part: we used loft but it doesn’t fit well