Lego hoist lifts 195-pound rock. 1:30 video:
https://www.youtube.com/watch?v=Ra2enBbzwWQ
Previously:
https://www.homemadetools.net/forum/...222#post116006
https://www.homemadetools.net/forum/...906#post129406
https://www.homemadetools.net/forum/...458#post135642
https://www.homemadetools.net/forum/...964#post133843
https://www.homemadetools.net/forum/...780#post105366