Walker Leg Constraints V2.0
Same video, higher quality. Rendered using the Internal Renderer instead of just OpenGL. I think the next thing I would like to do would be to break the leg away from the round section on top, and make it pivot at that point. Then, that round top section will go up inside the machine where it can turn on circular tracks to change the angle at which the leg points.
While purely asthetic, I would also like to add some working hydraulic pistons. 
–Lace