Contrary to popular media depictions of them, robots don't have to be multi-billion-dollar, hyper-complex sentient organisms capable of superhuman feats of dexterity and strength. Since a robot is primarily a machine able to perform a task on its own, a simple, entertaining robot can be built right in your own home, using materials and tools you most likely have lying around.
- Skill level:
- Moderately Easy
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Things you need
- Double-sided sticky tape
- Cell phone/pager motor
- 3-volt coin cell battery
Snip the head off a toothbrush and lay it with the bristles down. Make sure to leave about 1/2 inch of toothbrush neck still attached to the head for balance.
Lay a strip of double-sided sticky tape down on the flat upper surface of the toothbrush head to create a mounting surface for the other components.
Position the motor lengthwise on the toothbrush head, opposite the snipped-off neck and far enough from the edge that the turning shaft of the motor won't impact the toothbrush when it turns.
Set one of the motor's wires down flat against the sticky tape where the battery will be.
Place the battery on top of the wire firmly to create a connection.
Bend the other wire to contact the top of the battery, and the motor will begin to vibrate, scooting your robot rapidly across any smooth surface you set it on.
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