Creative DIY 3D Wooden Puzzle Marble Run Assembly Model Building Block

Marble run machine is also known as Cog Coaster. Its a roller coaster ride for marbles. This machine runs manually without any motors. The running mechanism is motion transfer using gears to lift to a height and then gravity takes over so the marbles again reaches the same position where they can be elevated again. Two paths have been designed in this machine wherein path changer alternatively directs the marble in two routes. In the swirl, centrifugal force comes into action, the marble doesn't fall off the swirl though on one side there is no support. Since this force is active it keeps the marble to be in constant contact with the swirl. Its an infinity loop machine till we power it, the marbles will constantly run all over. Colourful marbles running all over is fun to play. The marble run saga is also a great gift for your loved ones on birthday.