Upload
Login or register
Anonymous comments allowed.
#11 - russianmario
Reply 0
(01/13/2013) [-]
Wait how does it change directions then?
#12 to #11 - eyedonteven
Reply 0
(01/13/2013) [-]
See the gear at the bottom with a long beam attached? the beam will follow the path of the gear and when it reaches half way, it will come back.