Up next in How to Do Fun Tech & Science Projects (52 videos)
Teach your children technical skills and science in fun ways with the tech and science projects in this Howcast video series.
You Will Need
- 3-ft. insulated 22- or 24-gauge wire
- 1 D-cell battery
- Wire strippers
- Permanent marker
- 1 plastic cup
- 2 disk magnets
- 2 large paper clips
- 2 large rubber bands
- 4 alligator cable clips
Coil the wire around the battery
Coil the wire around the D-cell battery several times. Remove the coil and wrap the ends around two sides of the coil to hold it in place. Leave 3 inches of wire lead on each end.
Strip and coat the wire ends
Strip both ends of the wire coil leads. Hold the coil vertically and coat one half of one lead with a permanent marker. Apply a second coat of ink.
Place the magnets
Turn a plastic cup upside down and place one disk magnet on top while putting the other inside the cup, against the roof, to hold both magnets in place.
Straighten the paper clips
Straighten the outside ends of both paper clips to form a "P." Attach the paper clips to the cup using 2 large rubber bands to build a cradle for the wire coil.
Balance the coil in the paper clips
Balance the coil inside the paper clip cradle loop. Adjust the height so the coil just misses the magnets when it spins. Attach an alligator cable clip to each paper clip just above the rubber band.
Connect the battery
Connect the D-cell battery to the coil using the other two alligator clips. Be sure one end is connected to the positive side and the other the negative side of the battery. Give the coil a gentle spin.
Adjust the motor
Adjust the balance of the coil and the distance between each paper clip cradle. Experiment with the configuration until you have a working motor.