Figure 3. Front view of the crank shaft mechanism.
The main focus of my kinematic analysis was the head of the Peek-a Bear model. In order to to this, I first required to convert the three-dimensional mechanism inside of the model into a planar mechanism. I theorized the mechanism inside could be easily approximated and modeled as an off set crank slider.
Figure 4. Side View of Crank Shaft The Mechanism (modeled as a slider crank).