Community Tip - Did you get called away in the middle of writing a post? Don't worry you can find your unfinished post later in the Drafts section of your profile page. X
Here is the video for the third part of the OCtober 24 session of ROBOTALK that discusses simulation. This video covers many of the features of the mechanism simulation capability in PTC's Creo Parametric.
This video covers the creation of the chain feature using a user defined function.