Two armies with low members

摘要

It consists of: a two-sided force with a rectangular container, the upper part of which is two parts or two platforms, allowing lateral and reaction. These movements can be active or passive, sliding on the side rail. At the bottom, the platform has a lateral "U" channel, which is moved by two large volumes of one driving arm to generate alternating vanilla motion. In order to achieve dual motion, the two top platforms have two surfaces, the first platform has a passive motion, which is driven by an electric motor,The second platform has a user driven activity.