Fast Electric Circle Car for Cheap

Introduction: Fast Electric Circle Car for Cheap

About: I am an engineer focused on recycled batteries, electric vehicles and renewable energy. I am always working on engineering projects I can’t stop.

Fast indoor car made from recycled material.

See the video of the car driving below.

I made this 3 wheeled car so It drives quickly in circles.

Materials needed
Pulley wheel
Used laptop 18650 rechargeable battery (or other battery)
Hot glue
Bottle caps 3 or 4
Broken bike inner tube

Step 1: Building the Car

I decided to build a 3 wheel car but it would be easy to build a 4 wheel car.

I found that bike inner tubes from thin tires can be cut in strips and fit perfectly over plastic bottle caps.

First glue the pulley wheel and bottle cap to the middle of a short skewer. Cut out a piece of cardboard for the car body. Cut out a slot for the back tire. Cut straw pieces and put them on the ends of the skewer. Glue the straws to the body with the pulley belt on the wheel. Glue skewers onto the cardboard to strengthen it. Glue the motor to the cardboard and make sure the pulley belt is straight and has the right tension. Glue one bottle cap to a skewer. Slide a straw over the skewer then glue the other cap to the other end. Wire the battery and motor with a switch. Glue the straw at an angle on the cardboard if you want the car to drive in circles. Glue the battery to the cardboard.

Explore Science Contest

Participated in the
Explore Science Contest

Be the First to Share


    • Puzzles Speed Challenge

      Puzzles Speed Challenge
    • "Can't Touch This" Family Contest

      "Can't Touch This" Family Contest
    • CNC Contest 2020

      CNC Contest 2020