V G wrote: > So, the drivetrain could be composed of a motor attached to a crankshaft > which drives the two "pistons" (on the top and bottom) up and down. > > This is sort of what I mean: http://www.animatedengines.com/stirling.shtm= l > > The "pistons" are then attached to the tentacles by rigid rods. > > How does this sound? Sounds like you need quite a garage to keep that kind of a car. Sorry for the off-topic, just could not resist it. :-) --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .