Trying to figure out how to model a cycloidal Propeller. Here is the concept im using.    

When the Socket (left side) is on the axis, the propeller blades to the left or right are at 90 degrees. As long as this socket is on the axis the blades on the axis will be at 90 degrees. What kind of Lever system do i need so that when my version's socket is on the horizontal axis, the blades will be at 90 degrees? Any Ideas? I have attached a partial Assembly. Also, here is the interactive animation showing one of these working. http://users.telenet.be/sleepbedrijf/VoithSchneiderPropellerDemoProgramm3%5B1%5D.swf

Harrison