Rubber Band Operated Wooden Car

There were left over wooden blocks while doing furniture. I was thinking of how to convert them into something useful for kids. The idea of rubber band operated wooden car is the solution for the same. This is very Simple model. This is simple example of converting potential energy into kinetic energy.

1. One Pine wood block of 10x3x2 centimeters.
2. One Pine wood block of 18x4x2 centimeters
3. Ball pen refills
4. Polish Paper
5. Automatic drill machine
6. 4cm diameter hole saw with attachment.
7. Wood Polish
8. Hacksaw

Take a Pine wood block of 10x3x2 centimeter.

1. Make two holes from two c.m. from two ends. Make sure the diameter of hole should be match with the diameter of the pen refill (which we are going to use as an axle).
2. Finish the block using polish paper.

1. Design a slot at one end as shown in first photograph.
2. Cut a slot as shown in second photograph.
3. Polish this block using wood polish.

Take a Pine wood block of 18x4x2 centimeters. Make holes on wooden block using hole saw attaching to automatic drill machine. See the above photographs for reference.

1. Finish wheels using polish paper.
2. Apply wood polish on all four wheels.

1. Take 2 ball point pen refills of the hole diameter.
2. Cut them into required length (In this case - 8.2 cm long)

1. Car without wood Polish.
2. Car side view after Applying wood Polish.
3. Car back view after Applying wood Polish.

1. Insert small nail at rear axle (of ball pen tube). These nails will be used to hold rubber.
2. Take a rubber and put it around two nails. Turn rear axle so that you will have rubber band winding on rear axle.