This is a recreation of the Turtle ride at Mountain Park in Holyoke, MA. The ride was a miniature version of the Tumble Bug manufactured by Traver Engineering.

The truck is attached to the post at the center of the track, with the ends of the truck resting on the track rail. The cars are glued onto the circular platforms at the ends of the truck. The ramp is placed next to the flat track.

This was created for my Mountain Park model: http://www.karenandjay.com/mtpark/mpmodel/mpmodel.html