That also doesn't quite do what I want. This is an illustration of what I have:
http://img170.imageshack.us/my.php?image=followerillustrationfe9.jpg
As I rotate the cam, I want the follower to stay inside of the groove and slide back and forth.
Has anyone found a way to mate a barrel cam to a cam follower mounted on a linear slide in an assembly so as you rotate the cam, the follower moves linearly?