Enlarge mesh 30cm in all directions

Hello,

I just started learning rhino and I’m trying to enlarge my mesh 30cm in all directions.
The mesh represents some floors in a building and I’m trying to make a convex hull from this mesh wich is 30cm bigger in all directions than the original mesh.

I’ve already done this for objects (with VisualArq, see image), but wasn’t able to this for a mesh!

Many thanks,

Axel

Make mesh bigger.gh (58.1 KB)