Mesh > Mesh Offset

Offsets meshes to produce either regular meshes offset by a given distance, or STL-ready mesh objects.

To create a watertight STL mesh, the tool first duplicates the original mesh, then creates a mesh offset, removes any problem vertices, and finally joins the mesh offset to the original mesh’s duplicate.

Mesh Offset Control

Distance: Specifies the distance between the original mesh and the offset copy.
Output: Solid – The mesh is offset and joined to the original to produce a watertight STL-ready mesh. This is the default.

Offset – A simple offset mesh is produced.