Hi Bernd and Ralph,
Thanks for the reply.
I am an electronic engineer by hobby and profession, and I always wanted to be able to build things that I could fit my electronics into. One example are the robots in my avatar. I first saw Microbot over in Detroit about 20years ago, and was amazed by how "clever" they seemed, assembling some plastic clip type thing. So I would like to try making something similar. Also a chap called Theo Jansen made an interesting walking robot using a clever mechanism. Also....
Far too many ideas, and not enough time. A time machine would be handy!.
Ken