Four Flags (Knex Ball Machine)

A Knex ball machine I made in 2011.
8 paths, one network.



Video on Youtube: http://www.youtube.com/watch?v=XKY-kFFVRFU

Step 1: New(ish) Element: Wheel

Not exactly a new element, but I've never seen this particular wheel before, so I thought you might like a few pictures.