[Paul Copioli]

The last set of linkages (connecting the end effector) is a standard 4 bar linkage. The inside set of links is a 4 bar with the links crossed. This allows one motor to drive the entire assembly from the floor to the top ringer with no additional motors, pneumatics, or flip downs. We needed it to save the weight for the lifters. We wanted to do the 4 bar a la 2005, but it would have been too heavy to also have robot lifters.