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$10.00
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$13.50
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$34.50
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$17.00
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$7.00
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$7.50
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$8.50
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$7.00
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$57.50
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$17.00
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$12.50
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$17.50
These motion parts are designed to make things move. Motors provide the rotational power; gears, sprockets, and wheels transmit and transform that power; and bearings help reduce friction. A useful motion system consists of many of these parts working together. The diagrams below depict a few basic motion assemblies. Explore the subcategories for more information or visit the Tech Resources page for detailed building guides.