I have done research on cam follower mechanism.
Cam and follower mechanism is generally used in I. C. Engine to open and close valve of I.C. Engine.
My cam follower mechanism is different.
1. Follower is off set.
2. Force is applied through follower to cam and by using that force cam is rotated.
3. It creates Energy. (Difficult to believe)
I have changed prototype little bit. I use rubber ring on follower bearing which is in contact with cam. So it reduce noise and friction.
You can find prototype at