MechDesigner: Mercedes-Benz Wiper Blade Mechanism...How it works

www.psmotion.com
MechDesigner is used to model the Mercedes Windscreen Wiper Blade Mechanism. You can see in the simulation how it works - at least how I think it works! This is the 'full' version.
The design starts with a four-bar mechanism, then a six bar mechanism, then a slider crank is added, finally the gears - an eight bar mechanism with gears.