Simple Machines

 

 

Wooden Crank, Finbarr, Zach and Ian

 

This project was to challenge us by building 4 simple machines. We built simple machines to a specified mechanical advantage of 6 for the lever, wheel and axil/crank and an inclined plane and a mechanical advantage of 2 for the pulley. This was a challenging project and pushed are mines to the limit.  It was challenging because we had to make marks labeling where to apply force and make it so it could reach the appropriate mechanical advantage.

For the wheel and axle we were tied for 3^rdwith 70% efficiency. For the inclined plane we tied for 3^rd with 36.5% efficiency. With the lever we came in 1^st with 73% efficiency. Lastly for the pulley we came in 4^th with 73% efficiency. It was very difficult to pick a winner due to the disqualification of some of the teams on their machines.

On the wheel and axle we calculated wrong and did not get to the mechanical advantage of 6. Because of this we were rushing to get a new wheel on for the wheel and axle and were slightly off. The same thing happened to are inclined plane that is why we got such low efficacy. We could have fixed these problems by taking more time on the calculations and not on the building itself.