Learning the Essentials of Part Modeling - Inventor 2013 and Inventor LT 2013 Essentials - page 85

3. Click in the space between the concentric circles.
4. Because Optimize For Single Selection is selected, Inventor now
wants you to click the path. Select the part of the lines and arc going
to the disk on top, as shown in Figure 3.22.
FIGURE 3.22 A preview of the first Sweep tool
5. Click OK in the dialog box to finish the tool.
This consumed the sketch that you used for the sweep path.
6. Expand the Sweep feature in the browser.
7. Right-click and make Sketch2 visible.
8. Start the Sweep tool, and use the inner circle for your profile.
9. Select the same path sketch.