Four legged robot walker

Make a little walking robot with four legs

Age
9+ yrs
Time
30–45 min

What do you need?

Materials

  • 3 mm plyboard
  • Wooden skewers
  • Wood glue (or hot glue)
  • Geared motor
  • Candle wax
  • 2 AA battery holder with switch
  • 2 AA batteries

Tools

  • Laser-cutter
  • Soldering iron

Steps

1

Cut the wood

  • Use the laser cutter to cut out the wood.
2

Solder the motor

  • Solder the leads from the battery holder to the motor.
  • Put batteries in the holder and test the motor.
3

Assemble the body

  • Assemble the body lof the robot. Make sure the pieces all align at the bottom.
  • Place the motor inside the body. Make sure to have the red lead towards the middle of the body.
  • Close up the body with the other side plate.
4

Wax and apply spacers

  • Apply some wax to the spacers before sliding them over the motor axle on both sides.
5

The crank

  • Assemble the crank as shown on the photo.
  • Attach the crank to the motor axle. Make sure that the cranks are offset. Of one is pointing up, the other should be pointing down.
  • Add the rear spacers. They should align with the outer spacers on the front.
6

Assemble the legs

  • Assemble the legs as shown on the photos. Make sure to have one to be the mirror image of the other.
7

Add the legs to the body

  • Add the legs to the body and locj it all in place with the wooden spacers.
8

All done!

  • Your walker frame is done. You can expand on the design by adding parts to make it look even cooler!