This simple, easy to make robot was designed in Ancient Greece, and it is considered to be the first programmable device. With a few bits of wood, string, and a brick you can build your very own!
It uses a brick hanging from a piece of string for it's power, and is capable of moving forwards and backwards and steering.
Step 1: Making The Frame
The frame is made from a piece of wood, with four smaller bits coming off, poking out the front. One on each side, and two in the middle. To connect these, I used two pin-nails on each small bit of wood, coming down through the main strut. I also added a bit of PVA glue (wood glue).