You can compute a thin offset of the mesh, in the direction of the weighted normals of
the points.
Note:
Auto-intersections are not managed.
From the section of the action bar, click Mesh Offset and select a mesh.
Select a mesh.
Modify the offset value with the ruler.
The direction of the offset is given by the sign of the value.
The offset is automatically computed.
Optional: Right-click and select Create shell.
A closed shell composed of the initial mesh, the offset mesh and the ribbon of
triangles joining them and giving its thickness to the surface is created.
Double-click anywhere in the work area to validate.
The element Offset Mesh.x is created.
Note:
If required, use Free Edges to create scans on the offset mesh.
and select a mesh.