Racing Car: Older Design

This was one of our older design (in fact the design before our final one). The body was wider, so the car used longer axles. However, this was not an effective design because when the weight was placed onto the car, the weight pushed down on the axles, bending them. This made the car very slow or even prevented the wheels from turning entirely.

From this design, we were able to figure out our mistakes/misunderstandings of concepts. We learned from them and created a car that crossed the finish line in about 5.6 seconds!

This car moved more slowly. Its average time was about 9 seconds. (Our final design really improved!)

Older design.

Our old gear mechanism. Not much has changed, except for the fact that we placed the elastic pulley system on the other side of the blue Lego piece. 

This design was not very effective. (It took about 8-9 seconds to cross the finish line.)