2004

442 | Chapter 17 Change Existing Objects
4 Select additional faces to be excluded or press ENTER.
5 Specify the shell offset valve.
A positive offset value creates a shell in the positive face direction; a
negative value creates a shell in the negative face direction.
6 Press
ENTER to complete the command.
Command line
SOLIDEDIT
Clean and Check 3D Solids
You can remove edges or vertices if they share the same surface or vertex
definition on either side of the edge or vertex. AutoCAD checks the body,
faces, or edges on the solid object and merges adjacent faces that share the
same surface. All redundant edges, imprinted as well as unused, on your 3D
solid object are deleted.
You can check to see if your solid object is a valid 3D solid object. With a valid
3D solid, you can modify the object without incurring failure error messages.
If the 3D solid is not valid, you cannot edit the object.
To clean up a 3D solid object
1 From the Modify menu, choose Solids Editing ➤ Clean.
2 Select the 3D solid object (1).
face selected shell offset = 0.5 shell offset = –0.5
1