Okay, here's the problem. I need to have a bicycle chain interact with either a cog, sprocket or chain wheel...whatever you want to call it. The chain is built, the cog is built and the pedals work. I would imagine that it would be done via a path, with the chain following said path. However, I would like the pedals to drive the chain, via dynamics...if possible. Any suggestions or ideas. Are there any tutorials or case studies that anybody knows about? Thanks in advance!