Decision Matrix
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Gantt Chart
Brain Storm List
Pulley-Screw-Lever
Pulley-Screw-Wedge
Wheel/Axle-Screw-Lever
Wheel/Axle-Screw-Wedge
Pulley-Screw-Wedge
Wheel/Axle-Screw-Lever
Wheel/Axle-Screw-Wedge
Sketchs and Calculations
Test Results and Modifications
1. The axle wasn't aligned correctly
2. Gear kept locking up
3. Turning the switch off didn't work so we changed it to turn the switch on
4. The wedge needed weight to pull down the switch
2. Gear kept locking up
3. Turning the switch off didn't work so we changed it to turn the switch on
4. The wedge needed weight to pull down the switch
Final Design
Conclusion
1. The wheel and axle was the easiest because it was the most simple and straight forward and the number was small.
2. The screw was the hardest because that one dealt with the highest numbers.
3. We had a high input force which was very inefficient but because we couldn't calculate the AMA and only the IMA we didn't have an exact value
4. We could add a longer axle as supposed to attaching 2 together
2. The screw was the hardest because that one dealt with the highest numbers.
3. We had a high input force which was very inefficient but because we couldn't calculate the AMA and only the IMA we didn't have an exact value
4. We could add a longer axle as supposed to attaching 2 together