2
votes
1answer
191 views

Robot that builds a copy of itself

I'd like to try building a robot that can build a copy of itself. Basically, I guess that involves: having some means of navigating around (i.e. wheels, tracks, something to move on) having some ...
1
vote
1answer
213 views

Pull back motor 552 x2

I have these wheels and want to find a set/booklet where it is used. No combination of the numbers give any result. It says Lego Group 2011 522 x2 Found it