Pendulum Rolling Ball Clock

Using simple wood pieces, gears, and wire, Turnvater Janosch invented a completely mechanical pendulum rolling ball clock.

Enjoy!

A homemade mechanical rolling ball clock (english, deutsche Version)

The clock runs for 12 hours, driven by a weight of 2.5 kg sinking approx. 1 meter during that time.

Every minute a marble is lifted up and goes down a marble run with three flipping traps that count marbles for minutes, five-minute-steps and hours.

The timekeeping element is a second-pendulum with a pinwheel escapement.

The clock achieves a drift of less than 1 second per day.

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