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  • TeddyB9 commented on ASCAS's instructable Coin Sorting Machine (Runs On Gravity)8 months ago
    Coin Sorting Machine (Runs On Gravity)

    The straws form a rail that the coin slides on. As long as the distance between the two straws is shorter than the diameter of the coin then it will continue to roll through the rail without falling because of the support of the stabilizing rail (top straw). When the distance between the straws flares to be bigger than the diameter of the coin then it will fall through the gap because nothing is stabilizing the coin.

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