Advanced Part Modeling Features - Inventor 2013 and Inventor LT 2013 Essentials - page 160

FIGURE 7.8 Using the guide rail allows the feature
to be more complex.

The use of the 3D sketch's Helical curve allows the profile to twist around
the path.

Creating a Shell

When parts are hollowed with a consistent wall thickness along a face, using the
Shell tool is much more efficient than building the walls separately.

Certification
Objective

1. Make certain that the 2013 Essentials project file is active, and then
open c07-06.ipt from the Parts\Chapter​7 folder.

2. Start the Shell tool from the Modify panel of the 3D Model tab.
The Shell dialog box (Figure 7.9) opens, and you will be prompted
to click the faces you want removed to create the hollowed shape and
to name a thickness for the remaining walls.

3. Select the yellow face to be removed, and set the Thickness value to
5 mm by dragging the arrow or entering the value in the dialog box.

4. Expand the dialog box by clicking the icon on the bottom of the
dialog box.

5. Click where the dialog box says Click To Add ; then click the green
face on the part, and set the value to 15 mm.

6. Click OK to create the shell feature, as shown in Figure 7.10.

You can also create a shell feature without a removed face to create a hollow
part, and you can select multiple faces to open up the part as much as needed.