Think do test packet.
Yesterday we created a basic pendulum from the instructions. It did have some problems though. It was not stable enough, and it was not tall enough which made it weak. I plan to add 2x20 pieces to make it taller and tires on the bottom to stabilize it. Also i am going to make the piece that holds the tire longer so it can swing back farther.
Criteria: The elevator must lift 3-4 small objects at a time or a single object of equal weight. The elevator must use a pulley. The elevator must include a platform or container to hold objects being lifted. The elevator should include a mechanism to lift and lower the platform manually.
1/12/17 CHALLENGE TWO: We must create a pulley system that can lift three blocks three inches high.