How to make a 3D origami wagon

(page 15)

27th picture of 3Dbnorigami wagon

27.

Turn the origami wagon model over.

Prepare to pull two edges following the arrow direcrions.

28th picture of 3Dbnorigami wagon

28.

Pull two edges following the arrow directrions of the step #27.

Prepare to apply four flat-folds (unfold).