Making a Powerful Lego Hoist (re-edit)

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