hello! does anyone know how to join these poly surfaces together into 1 closed surface so i can use it for grasshopper simulations? i tried the Join command but it didn’t work, thankyou so much
polysurface.3dm (4.7 MB)
Hi @shirakawachu,
Open polysurfaces have to be joined edge to edge. Your surfaces don’t butt up to one another like that to allow it to happen. I can’t interpret your intention from the model in its present state. Think about how you want the gaps between surfaces to be bridged, then make the additional surfaces necessary to achieve that.
To achieve a closed polysurface all edges of any constituent surface must be connected to edges of other surfaces. Also, exactly two surfaces must be connected along any stretch of an edge, no more, no less.
HTH
Jeremy
Hi McNeel 
Is this an actual license type or is this the 2025 version of Corporate?
“Rhinoceros 8.23 - OEM, build 2025-09-08 - (compiled Sep 8 2025)”
I don’t remember seeing OEM licenses before…
TIA, Jakob
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