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    • Testing Lego pulley systems   gears    • Testing Lego gear systems for hoisting   pulleys+gears 1    • Testing Lego gear and pulley systems - part 1   100kg    • Lego Motor Lifts 100kg   pulleys+gears 2    • Testing Lego gear and pulley systems - part 2   rock    • Lego Motor Lifts a Rock (88kg/195lb)