How to make a homemade electric RC mini robot

Written by alex zang
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How to make a homemade electric RC mini robot
If you have the time, you can build an RC robot that flies. (remote control, image by Greg Pickens from

An RC robot is remote controlled by the user to perform certain actions. While robot kits that contain pre-made parts to assemble your own robot are available, you can also build one out of materials you have lying around your house. For the pieces you don't have, you can buy them or salvage off other toys and robots. Remember, the more complicated the robot you design, the more difficult it will be to build without a robot kit.

Skill level:

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Things you need

  • Pencil
  • Paper
  • Cardboard
  • Wood (optional)
  • Scissors
  • Power drill
  • Super glue
  • Block of wood
  • Velcro
  • 9-volt battery
  • Elastic band
  • Soldering gun
  • Solder

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  1. 1

    Sketch designs for your robot using a pencil and paper. Keep the design as simple as possible in order to keep costs low. Make sure to do several blueprints using a consistent scale. This will save you time later.

  2. 2

    Create wheels for your RC robot. You can either salvage wheels from another toy or you can cut wheels out of a piece of cardboard or block of wood.

  3. 3

    Buy two servo motors. You can find a servo motor at a local hobby shop, or online at sites that sell robot building supplies.

  4. 4

    Attach your wheels to the servo by connecting the servo horn, which comes with the servo motor, to the wheel by screwing it in. You'll need a power drill if you're screwing into wood. Then thread the servo horn with the attached wheel onto the servo output.

  5. 5

    Mount a block of wood between the two servos. You can do this by drilling in screws or by using super glue. This block of wood will serve as the base for your homemade RC robot.

  6. 6

    Glue a piece of Velcro to the top of the block of wood and a separate piece of Velcro to the 9-volt battery. Attach the battery to the top of the block of wood using the Velcro. Another option is to use an elastic band that wraps around the block of wood and the 9-volt battery.

  7. 7

    Attach a remote control receiver to the wooden block. You can screw it in if your receiver gives you the option, or you can glue it, tape it or use an elastic band.

  8. 8

    Connect the wires from the servos to the remote control receiver. You may be able to twist them on, or you may have to solder them.

  9. 9

    Connect wires from the servos and the remote control receiver to the battery, which will power your homemade RC robot.

  10. 10

    Turn your robot on and test it out. If it doesn't work, check to make sure all of the connections are secure. Your remote control might also need batteries.

Tips and warnings

  • You may be able to find designs for more advanced robots online.

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