Edithistory:Great Ball Contraption
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| 1335565008 | 2026-01-29T22:47:31Z | NewAccount7295 | [[WP:AES|←]]Created page with ''''Great Ball Contraptions''' ('''GBCs''') are a type of [[Lego]] design popular at fan conventions comprising a machine built with both regular and [[Lego Technic|Technic]] bricks that continuously transports Lego balls through different modules using [[chain reactions]]. They are sometimes compared to [[Rube Goldberg machine|Rube Goldberg machines]],<ref>{{Cite web |date=2016-06-21 |title=Watch a Giant Lego Contraption Endlessly Move Balls |url=https://ww...' |
