Input: Pink Shaft
This is an application of the Schatz linkage which consists of 5 movable links. Center distance of revolute joints of two green grippers and the yellow cage are equal (= a). Center distance between pink and blue shafts = a*sqrt(3) = 1.732a The materials to be mixed are in the blue container with 3D complex motion.
See a real machine: https://www.youtube.com/watch?v=wDnzgJTs5Ik https://www.youtube.com/watch?v=iXAlw7MjAfI