Negative cast of a complex mesh

[AndersDeleuran]

I didn’t have a look at the model (on my phone), but the new Shrinkwrap feature sounds like it might be a solution here:

Rhino 8 Feature: ShrinkWrap

ShrinkWrap lets you create a wrapped mesh from mesh, NURBS geometry, SubD, and Point Clouds. Just about anything! ShrinkWrap meshes are ideal for creating: Meshes for 3D printing. A solid union mesh from multiple input objects. A solid mesh from 3D scan data fragments. Meshes without internal self intersections. Offset meshes for shell operations Reverse engineering workflows Point cloud meshes Valid closed meshes from broken or often hard to repair geometry. [0648] [ShrinkWrap] …