so, I have to make a single-actuator walker for a class. it has to have two (unpowered) wheels, and two legs (it's a mechanism design class) here's the motor i have to use: http://www.pololu.com/catalog/product/71 i've drafted out a klann mechanism, and even made an assembly in solidworks http://imgur.com/8WbZb but it's too rickety when I build it! http://imgur.com/lDcE4 so rickety, that I can't test it. but i know (from manually manipulating it) that the nuts, bolts, and legs will interfere with each other so, two questions: how can I stabilize, and how can I prevent interference? thanks!