In this instructable i will show how to make a simple rubberband powered car using cardboard.
Step 1: 1. Materials
5- Small tubes( like used ball pen refills).
6- Pencil and ruler.
7- Hot glue or any other glue.
Step 2: 2. the Axles
Step 3: 3. the Axle Carriers
Make four such pieces.
Step 4: 4. the Body
Step 5: 5. the Wheels
Step 6: 6. Assembly
Take the other axle, put two refill pieces on it and glue it to the front end of the body. Again make sure that the axle turns freely.
Now put on the wheels. Put the ends of the axle into the hole of the wheel. Secure it using glue.
Finally take the free end of the rubberband and hook it on the two notches at the front. Secure it using glue.......and its done.
Step 7: 7. Launching
Now place the car on the ground holding the wheels and release it. As soon as you release it, the stored potential energy is converted into kinetic energy whick moves the car forward.
Step 8: 8. Modifications
To increase power, use stronger rubberband or use more than one rubberbands. Also make the body stronger by attaching another layer or cardboard.
To increase distance, use a longer rubberband and also make the car longer to fit the rubberband properly.
So make some cars, race them and have fun.