Tuesday, 24 July 2012
A New Model
A New Model
We decided to change our whole model because our first model used heavy materials. Using heavy materials made our structure move very slowly. Since our first body was small in length, our wheels were close together. In our new model we will use different materials which will have less weight than the first one]
We decided to change our whole model because our first model used heavy materials. Using heavy materials made our structure move very slowly. Since our first body was small in length, our wheels were close together. In our new model we will use different materials which will have less weight than the first one]
Improvements we made to the Square-6
To improve our structure for the Square-6, we made our wheels steadier. To accomplish this, we put elastic bands on both sides of each CD. When we did this, the wheels did not wobble anymore.
Monday, 23 July 2012
STEPS TO MAKING THE SQUARE-6
1. Put three straws through the wholes of each CD.
2. Put a bamboo stick through one of those three straws.
3. Add two more bamboo sticks to the sides to make a square and tape them.
4. Put two more bamboo sticks in the middle facing horizontal to to make the structure steady.
5. Place a small piece of cardboard in the middle of the structure to place the blown balloon.
Thursday, 19 July 2012
Tuesday, 17 July 2012
Improvements for Our Next Model
The biggest mistake that we did was using heavy materials like a pencil and a tissue box and building the structure with wheels that were close together. The eraser made the pencil heavier. The eraser on one side did not keep the structure balances and make it very instable.
The other small mistakes that we made were:
* Using a long straw
* Using a heavy body, which means that in our next model, we should cut of the top of the tissue box and give it less weight.
* The pencil gives the structure more weight. This means that in our next model, we should use barbecue sticks instead of the two pencils.
* The wheels are unstable and move slowly. In our next model, we should separate the distance between the CD’s and the tissue box.
*The tape we used for the small cardboard pieces to hold the pencil and the CD together were too tight, which resists the movement of the car.
* The hole in the smaller cardboard were two small. Therefore, we need to make the whole larger so that the wheels could move more freely and faster.
Steps to Make the B-Box
1. Cut off one of the smaller sides of the tissue box.
2. Take the plastic paper off the middle rectangle of the tissue box.
3. Cut 8 small square cardboard pieces.
4. Make 2 holes on each side of the tissue box.
5. Tape the cardboard pieces to the CD to cover up the holes.
6. Put the 2 CD’s through each pencil.
7. Put the pencil through the whole in the side of the tissue box.
8. Tape the end of the balloon to the straw.
9. Take the taped-balloon and straw and tape that to the open side of the tissue box.
Monday, 16 July 2012
Saturday, 14 July 2012
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