How to Make Your Homemade RC Car

Written by erin grady
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How to Make Your Homemade RC Car
Building a remote-control car at home can be a bonding experience for you and your children. (Ryan McVay/Lifesize/Getty Images)

Homemade remote-control, or RC, cars are fun toys for children of any age. As your kids' enthusiasm for remote-control cars continues to grow, consider introducing them to the joy of building their very own RC cars. Building a remote-control car at home takes some time and concentration, but you and your children will enjoy playing with the final product.

Skill level:
Moderately Challenging

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Things you need

  • Steel plate, 1 foot by 6 inches
  • 4 steel screws
  • Phillips-head screwdriver
  • Powdered graphite
  • 4 washers
  • Adjustable wrench
  • 4 steel bolts
  • 2-way radio frequency motor
  • Wire strippers
  • 4 resistors
  • Rubber cement
  • Electrical drill
  • 4-inch steel rods
  • Rotating steel head with 1-inch-diameter electrode
  • RC car kit

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    Instructions for Building the Body

  1. 1

    Check your remote control-car kit. Make sure there are 2 axles, 4 wheels and a housing for the remote-control device.

  2. 2

    Clamp the axles onto the steel plate. Make sure the axles are the correct places; the front axle is typically the one with the pivoting ends. Screw the clamp until it is secure.

  3. 3

    Cover the ends of the axles with powdered graphite and insert the wheels. Hold each in place by placing a washer on the end of each axle.

  4. 4

    Bolt the radio electric motor to the front corner on the passenger side of the steel plate. Use the wire strippers to take the coating off the end of the motor's lead wire. Attach the lead wire to the copper ring on the right side of the front axle. Crimp the ends of the wire around the copper ring.

  5. 5

    Strip the coating off the motor's steering wire, which will be either red or green. Crimp the ends of the steering wire around the knob on the bottom right of the front axle.

    Instructions for Building the RC Device

  1. 1

    Use rubber cement to glue 2 pairs of resistors to the inside wall of the housing for the remote- control device. Leave about 1 inch of space between the resistors.

  2. 2

    Drill a 4-inch hole through the wall of the housing in between the 2 resistors, or about 1/2 inch away from each resistor. Slide the 4-inch steel rod through the hole.

  3. 3

    Snap the rotating steel head with electrodes to the end of the bar inside the remote control housing. Snap the plastic knob from the remote-control kit to the end of the steel rod outside the housing. This is the device that will steer the car.

  4. 4

    Strip the coating from the end of the trigger wire and crimp the ends of the wire around 1 pair of resistors. Close the remote-control housing by snapping the halves together and screwing the antenna to the top of the remote-control device. The RC car is now ready for use.

Tips and warnings

  • Order your RC car kit from a reputable online source or hobby shop.
  • Purchase the radio frequency motor from a hardware store.
  • Always supervise children while completing the project.
  • Follow the directions closely.

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