Problem With LunchBox

When i try to make a structure for this surface the panel sistem go out… for all kind of lunch box. I guess the problem is that the surface is consider like a “trimmed surface” but is the only way to get a shape like that. Please help me

You’d better understand how to deal with “Trimmed Surface” and it’s boundary first.


Thank you a lot !! i’ve just started with grasshopper so if you have others advices i appreciate :slight_smile: