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This Great Ball Contraption has a straight line mechanism via planetary gears. The stepper ball feed timing has a fine-adjustment through a differential.
Piece together a rotary feeder and an oscillating gate that work in harmony to ensure a seamless journey for the balls through the system.
With over 1000 pieces, this set invites you to explore the fascinating workings of planetary gears and a complex lifting mechanism.
For all orders exceeding a value of 100USD shipping is offered for free.
Returns will be accepted for up to 10 days of Customer’s receipt or tracking number on unworn items. You, as a Customer, are obliged to inform us via email before you return the item.
Otherwise, standard shipping charges apply. Check out our delivery Terms & Conditions for more details.
