Moving into the Assembly World - Autodesk Inventor 2010: No Experience Required - page 114

8. Finish the sketch.
9. Save the new fi le into the Parts folder as Duct.ipt .
10. Restore the home view so that the sketch is positioned in an isomet-
ric view.
11. In the Browser, expand the Origin folder, right-click XY plane, and
select Visibility from the context menu.
Doing so makes the XY plane of the part visible. You need to create
another sketch that is parallel to your fi rst sketch but set away from
it in the Z axis. Presently, the component has no geometry on which
you can create that sketch, so you'll need to create a plane.
On the Sheet Metal (and Model) tab is a Work Features panel. That
panel contains tools for creating your own planes, axes, and points
on which to base other geometry. To create a new work plane, all you
need to do is start the Work Plane tool, pick and drag from an exist-
ing plane, and specify the distance between them.
Because work planes are frequently created in order that sketches
can be placed on them, Inventor includes a special function that
you'll use now.
12. Press the S key on your keyboard.
This is a keyboard shortcut for creating sketches. You can also edit
a sketch by pressing S and then picking geometry belonging to the
sketch you want to edit.
13. Pick and drag from the edge of the origin XY plane on the screen to
the left until the Offset dialog reads 12.000. Then, release the mouse.
If the dialog shows something other than 12.000, type 12 to move the
plane into position. See Figure 3.2.
You've simultaneously created a work plane and a new, active
sketch on it.
14. Start the Circle tool from the Draw panel.
15. Click the sketch center. Using the display on the status bar at lower
right, click the screen again when the Radius is roughly 15in.
16. Using the same Dimension tool, click the circle. The tool automati-
cally offers you a diameter for the circle. Click again to place the
dimension; then, click the value and set it to 30 in the dialog.