Load the Drawing
1. Type in: load '\me10\pd_demos\demo05.mi' [Enter]
If this file is not on your system, use Creo Elements/Direct Drafting to generate it. The cam profile is a single B-spline. Be sure to include all three point elements shown in following figure if you draw the part yourself.
2. Select Add Mult in ZONE and type in: all end [Enter] to load the entire part into the zone.
Demopart05
The goal of this example is to force the follower to stay in contact with the cam profile as the cam rotates. By setting up both the cam and the follower as rigid bodies, we dramatically reduce the number of constraints needed to implement this action, and can concentrate more on interaction between the two pieces.
The demo05.mi model is fairly simple. The only elements in the drawing that are needed specifically for parametrics are the construction line and the three point elements, which are used to facilitate placement of several Point On constraints.