Marblevator, Rube Goldberg Style

How many mechanical components are necessary to lift a marble from the end of a marble run track to the beginning? Well in "Marblevator, Rube Goldberg Style" I added as many as I could to create this Rube Goldberg / Erector Set themed Marblevator. The marble lift incorporates quite a few mechanical components including a cam arm, scotch yoke, rack gear, pinion gear, clevis arm and clevis, a clevis track for the clevis to follow, a pivoting clevis to coordinate arm movement, an arm to which a ma…

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