sound triggered tri wheel fan car

by maxamum May 28, 2013

Balsa wood hand crafted car. Powered by little bits dc motor on the front wheel with a little extra speed from a fan bit on the back of the car. Car is trigger by the sound trigger bit.

Bits used: dc motor , fan, power , sound trigger, wire

Difficulty: Intermediate



  1. 1

    cut out sides of car you want and a 6 by 6 bottom

  2. 2

    glue all sides to bottom

  3. 3

    cut out a circle hole in middle and a square hole in front for front wheel

  4. 4

    put circuit together starting with power then sound trigger , fan , wire, dc motor and put all bits on top of car with double sided tape but dc motor put that next to square hole in front.

  5. 5

    slip wire through the circle hole in car and connect to the dc motor.

  6. 6

    put wheel on dc motor in the front and cut 2 2 inch pieces of square balsa wood and put the 2 back derby wheels in and glue to back of car and you are ready to go.

Bits used (5)


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Other Materials Used (4)

  • derby car wheels 1
  • flat and square balsa wood 1
  • glue 1
  • paint 1

Tools (4)

  • Drill
  • Glue
  • ruler
  • xacto knife and saw

Other files

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