Autodesk 235B1-05A761-1301 - AutoCAD MEP 2010 User Manual page 721

5 Select the work plane on the primitive that you want to align with the work plane selected in
the previous step.
Most of the primitives included with the software include multiple work planes. To select the
current plane, do nothing. To cycle through the planes on the primitive and make another
plane current, enter n (next), and press ENTER. As you cycle through the planes, notice how the
software repositions the primitive in the modeling area so the current plane on the primitive
aligns with the selected plane on your part.
NOTE This step aligns the centers of the selected planes so they match. As a result, the placement
of the primitive on the plane on your part depends on the location of the primitive on its own plane.
The primitives included in the software were created in the center of a horizontal plane.
6 If desired, change the orientation of the primitive:
If you want to...
flip the primitive so it is positioned on the other
side of the plane to which it is being added
rotate the primitive around the center of the
plane to which it is being added
insert a mirror copy of the primitive instead
7 When you have positioned and oriented the primitive as desired, press ENTER.
The software copies all of the modeling features in the primitive into your custom part. If the
units in the drawing that defines the primitive do not match the units in your part drawing,
the software also converts the units appropriately. You can now work with the part model as if
you had created all of the features manually.
In the model parameters of your part, the descriptions of the parameters that were derived from
a primitive include the name of the primitive. This makes it easier for you to differentiate
parameters when you have added multiple primitives, or a mixture of primitives and manually
added features, to the part model.
Model Parameters dialog
NOTE For a step-by-step example of adding primitives to a part model, see
Primitives on page 703.
Example: Building a Part Model from Primitives
The following procedure describes how to create a round-neck rectangular diffuser using
663. Assume you have created the part, specified its part configuration, and created the default work planes.
then...
enter f (flip plane), and press ENTER.
enter r (rotate). Move the cursor and click to specify the
angle change. Alternatively, you can enter the angle change
on the command line and press ENTER.
enter m (mirror), and press ENTER.
Building Parametric MvParts with Content Builder | 703
Example: Building a Part Model from
primitives on page