2 ms·
I used to love motorised lego stuff. Building marble runs was my favourite...
by extasia 4y ago
I used to love motorised lego stuff. Building marble runs was my favourite...
- preinheimer 4y agoThe Great Ball Contraption (GBC) videos are pretty good: https://www.youtube.com/watch?v=VCmwskpxyCg https://www.youtube.com/watch?v=VCmwskpxyCg Really interesting ways to move balls around.