loading
Picture of Train Seesaw


A motorized "Brio type" train climbs this seesaw--and its weight flips it down the other side.  The track (actually it's a channel) is 3D printed and can be customized as to angle, radius, length and color.

http://www.thingiverse.com/thing:65965



 

Step 1:

Picture of
Start by printing track.  I left holes to screw the track to plywood.