About this 3D model

This is a seesaw and track (channel) for Brio type trains. Video at: http://youtu.be/9aOEwNhrwgk Full instructions at: http://www.instructables.com/id/Train-Seesaw/ The train will be modified and this will become the "Froggy Express" at Froggy World--hopefully to be shown at the 2013 San Mateo Maker Faire.