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Chinese Windlass
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This was a group project at OsloMet where we had to make a crane that could lift a 5kg weight with a 6N counter weight.
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- Printables
- Category
- Engineering
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- Creative Commons — Attribution — Noncommercial — NoDerivatives
Parameters:
Rc = 40 mm
r₁ = 15 mm
r₂ = 8.6 mm
Mechanical gain:
G = 2Rc / (r₁ − r₂)
G = (2 × 40) / (15 − 8.6)
G = 12.5
Required gain:
G = 5 / 0.6 = 8.3
Since 12.5 > 8.3, the design provides sufficient mechanical advantage to lift the required 5 kg load.