What I want to show you here is a particularly handsome hand-made tutorial for a rubber band-powered car, which can use the strong elasticity of the rubber band to Run quickly.
Children who like this small technology can follow the tutorial below.
Prepare some materials and tools in advance, including plastic wrap tubes, disposable chopsticks, CDs, wooden buttons, straws, etc.
Paste a wooden button on one side of the center of the disc.
Then stick the button on the other side.
Prepare a few CDs in advance, and then handle them in the same way.
Punch a hole in the other end of the plastic wrap tube.
Then put on the rubber bands, align them and punch out the other three holes.
p>Cut the disposable chopsticks into appropriate sizes and insert them into the holes of the cling film tube. They can be used as tire pumps.
The straws are also cut to the appropriate size and length.
p>
Then put it directly on the disposable chopsticks, and then Install some CDs as tires.
The four tires are made in the same way. Note that the axles of the rear two tires need to be longer.