Ok, thanks to the (few) but warm replies to my previous wip, here is a second animation, four spider legs now (Ok, only 3 are moving, I know)
http://www.selleri.org/Blender/movies/robot3.avi (DivX 5.0.2, only 427k, you can download it )
I’m mirroring them, building a body, etc. etc.
BTW: I got say 8/10 errors like
“clip overflow: clve clvl 41 22”
at each frame. What is that?