Making a Powerful Lego Hoist (re-edit)

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6 old videos re-edited into one.
The aim is to make one Lego motor (Power Functions Medium) pull a weight scale with great force using only Lego parts and a string. The video demonstrates mechanical advantage in the form of gear reduction and pulleys. Enjoy!

Original vids:
pulleys
gears
pulleys+gears 1
100kg
pulleys+gears 2
rock
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