Meshes and Surfaces - Autodesk AutoCAD 2013 Practical 3D Drafting and Design - page 412

Select surfaces or solids to sculpt into a
solid: Selection
Select surfaces or solids to sculpt into a
solid: Enter
Note
The SMOOTHMESHCONVERT variable controls the face smoothness when convert-
ing meshes (presented later in this chapter) to solids or surfaces.
Exercise 12.2
Let's apply this command to create a solid from the model created in the Exercise
12.1 section:
1. Open the drawing A3D_12_02.DWG .
2. To have an enclosed volume, the model must be capped below. So we
have to create PLANESURF involving all model base.