To Create a 3D Solid Shell

1. Click Modify menuSolid EditingShell.
2. Select the 3D solid object.
3. Select one or more faces to be excluded from shelling and press Enter.
4. Specify the shell offset distance.

   A positive offset value creates a shell wall in a positive direction from the face. A negative value creates a shell wall in a negative direction from the face.

5. Press Enter to complete the command.