Multiple curves of stairs steps to multiple surfaces

[Tarik_Suifil]

Hi Everyone,

there is a way please to create all the surfaces of the steps from the curves in one time ?

Thank you in advance

[leopoldomonzani]

stairs.gh (21,4 KB)

[giuseppe]

Welcome Tarik.

NURBS Surfaces (Srfs) are 4 sided topologies.

Looking at your model:

Each step (srf) has one shared edge where vertical and horizontal meet. You can not just window pick all the curves and call a surfacing command for all of them at once. Rhino can not understand how to sort the curves out .

A possible solution:

(1) Join the outer “stepping” curves into one composite curve. Same for the opposite side.

(2) Loft the composite curves.

[Tarik_Suifil]

Thanks a lot for your response. I resoleved with DUPBORDER command because I had already the geometry.