Shell

Shell adds a second layer over selected faces, set out by the Thick amount (e.g., selecting a head to make hair). The shell follows the curve of the surface under it, and its edges seal flush against the part below. Shell is under Surface on the Build tab.

Select faces, set Thick from 1 to 4 blocks, and select Shell. The selection clears, and the new shell becomes the chosen part. The shell gets the current color; if that color matches the part below, the shell gets a different color so you can see it. When Mirror is on, matching faces on the other side get a shell at the same time.

The shell piece

The shell is its own separate part:

• Move its rings using Adjust (e.g., moving its edge rings).
• Give it its own color or paint with Fill or Paint .
• Join it with Attach so the shell moves with the part below.

Shell works on faces of one part at a time. To change a shell’s thickness later, move its rings in Adjust, or select Undo and shell again with a different Thick.