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| Drawn Pulley System Idea |
Step By Step:
1. Tape two wooden sticks and one plastic straw to the table, with the plastic straw placed in the middle of the two wooden sticks.
2. Place a spool of thread on each wooden stick.
3. Pull thread from spool 2(right) and wrap it once around the plastic straw then connect and tape it to the end of spool 1 (left).
4. Pull thread from spool 1 and tape the end of it to one of the paper cups.
5. Take a separate 3m piece of thread and attach one end to the outside of spool 2 and the other end to a paper cup.
6.Fold a 1" piece of tape around the end of the wooden sticks and also the plastic straw. (These will be used as "stoppers" to keep the thread from falling.)
7. Place the beans in the paper cup on the right.
8. Finally, we add the marbles to the left cup, making a counter weight system. The weight being added to the left side will act as a motor and cause the pulleys to rotate, winding the thread and making the right cup holding the beans move upward 3m.
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| First Set up and Trial The first trial worked but with some minor difficulties. For our second set up we used a table top slightly higher than the one in the picture above. We also attached fishing line from the cup on the right to spool 2 in place of the thread to prevent tangling as it winds up.  Lights... Camera... Action! As you can see, the beans in the cup were able to be moved 3m using our pulley system design. :) |
