Reversed normals

Rhino Rhino for Windows
1

Hi, I have to 3D print a model, but some of the normals (Face of the model) got flipped. Is there an easy way to fix this?Mesh normal.3dm (11.4 MB)

2

Have a look at the UnifyMeshNormals command

3

Hi,

I tried that but that didn’t seem to work, could you take a look at my file to see if it works for you?

4

I opened it and found a bunch of unjoined meshes.
To be honest, I have no idea what it is supposed to represent.
I can’t make any sense of it.

Here’s a simple mesh sphere with three facets with their normals reversed:
image

If I run UnifyMeshNormals on it, then it looks right.
I changed my Rendered display to cull backfaces.
image