Autodesk Inventor iDoor Tutorial
Page 4 - Adding Parameters and Starting the Stile
Profiles.
What we have so-far is a visual representation of the door
opening. The door itself will be created inside of this. Activate the
Layout sketch (double click on it) and find the Point
command on the
Draw Panel 
(on the Sketch tab, which should
be active). Click three times inside of the rectangle to create three
Points roughly as shown. Don't get anal about the
placement, just use the image below as your guide.
The
points will be used to create the planes that the stiles will be drawn on,
and will control the gaps on all four sides of the door. We will now use the
Insert_Gap parameter as well as Horizontal 
and Vertical 
constraints to precisely position the points. Starting with the lower right
point, add a dimension to both the horizontal and vertical lines using the
Insert_Gap parameter for both. The point will now be 1/16" from
the lines in both directions. The next step is to add a Horizontal
constraint between both of the lower points. grab the Horizontal
constraint
tool and click on both of the lower points to achieve this. Because the
right-hand point is fully constrained, the left one will move to match its
horizontal positioning. If you were to try to dimension the left-hand point
to the bottom line you would either get a message warning of an over
constrained condition; with an option to create a driven dimension, or, it
will just create a driven dimension (if you have the program set up that way).
The last of the three dimensions on the lower points is to add a dimension
from the left point to the left vertical line of the rectangle.
In this image you can see that there are only three dimensions required
for the lower points to be fully constrained. The fourth one is the
Horizontal
constraint placed between the points, and is not visible by
default.