Car Size: Length 275 mm Width 140 mm Height 285 mm
Weight: 378 grams
Wheel Size: 40.5 mm front wheel 40,5 mm back wheel
Pully size: 25 mm
List of Components:
1 Pully $1.00
2 Axles $1.00
4 Wheels $ 3.00
1 Balsa Wood Sheets $ 1.00
Motor $5.00
Solar panel $5.00
Battery $2.00
Paper Pot, wires, pipe cleaners, straw, Velcro stickers (Recycled)
Crayola marker as track wire holder (Recycled from old marker)
2 Rubber bands $0.50
1 Ping pong ball (from pay set)
Battery Holder $ 1.35
Succulent $2
Total Value $21.85
Design:
Items we used:
One 1/8 balsa wood
Pully
Four 1-inch thin plastic wheels
One long cardboard pole
Two Rubber bands
One Solar panel
One motor
Two wires
One battery holder
Hot glue
Velcro stickers
Quartz
Succulent
Paper cup
Pipe cleaners
Metal axel
Straws
Alligator clips
Tape
Crayola marker
Theme:
Our theme is “Lord of the Rings”
What we are aiming for :
We are aiming for design and innovation
Problems:
The rubber band was becoming too tight or too loose and so the car did not go straight and far. The actual problem was that the pully kept on wobbling, so even the new rubber bands that would fit perfectly would break. Another problem was that the car did not move straight, because the axel was not in a straight line.
Solution
Our solution was to hot glue the pully to the axel to make it rotate without wiggling and the rubber bands fitted perfectly. About the second problem, we adjusted the direction of the axel with many trials till it started moving straight
Things I am proud of
We are proud of our car design with the Lord of the Ring theme showing Mordor with Barad-dûr. We are also proud of our little succulent in the middle of the car which shows our love for the environment.
Extra
Inside Barad-dûr we kept some quarts that can make the tower buzz by putting the pipe cleaners in there.
This is an incredible design. The name and the plant caught my attention right away! What a creative concept. Well done!
Thank you so much for your comment!!
-Abhay