Brep Join Issue

Hi There,

I have very simple geometry in grasshopper, all i want is to joint all of them together to obtain a closed brep but its not working. When I cap the object it gives an error and in the panel it says that 1 open brep and 1 Untrimmed Surface.

How to do this properly can you help? (10.8 KB)
Untitled.3dm (29.7 KB)

Forgot to add documents.


It’s the input of the Brep Join that needs to be flattened, not the output.

I STRONGLY advise using Merge component instead of putting several wires in one input, spaghetti-style. This allows you to detect those erros thanks to the wire display. (14.3 KB)