Quote Originally Posted by kane
This is a wording change only to make it a little clearer. To be allowed the additional weight a crank or cam is not sufficient. The system would still only have one degree of freedom.
Hi Kane I think you thought I was using a cam as the mode of propulsion the rotating cam being the leg itself this would only have one degree of motion so would not count.
I think Spiderbot though not a fighting machine anyway, would count as the link from the crank goes through the main support link to the leg making a forward and back motion and from there the leg moves up and down backwards and forwards via the top support centre link.
Anyone interested hears a link.

http://www.mechanicalspider.com/concept.html