The Great Ball Contraption Wiki
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A GBC Collaboration

Welcome to The Great Ball Contraption Wiki, a part of the Brickimedia network!

What is a Great Ball Contraption?

A great ball contraption (GBC) is a machine which receives soccer balls or basketballs from one module and passes them to another module, rather like a bucket brigade. Modules built according to the GBC standard can be assembled into a collaborative display without pre-planning or modification. The GBC standard is minimal, permitting the builder great flexibility in designing the mechanism by which balls are moved from the input to the output. The otherwise pointless handling of balls, and the myriad ways this is accomplished, gives great ball contraptions the impression of a Rube Goldberg machine.

a stair stepper module


Upcoming GBC Events

North America

Europe

APAC

  • [1] Brickvention, Melbourne, Australia. January 13-15 2017. We may be able to beat Brisbane's record!

See also Past Events.

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Contributing

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The Great Ball Contraption Wiki is your web site! Add the GBC content you want to see. We are kindly hosted by Brickimedia, so your Brickimedia account is all you need. How you can make this site better:
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Newly updated forums

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Latest reply

Table-spanning module

Posted by Captainowie on 26 September 2015 at 13:41.
Forum: Great Ball Contraption > Customs

62 3026 On 9 January 2017 at 05:29
by Captainowie

Question regarding Lego Mindstorms 1.5 motor compatibility

Posted by 172.68.58.228 on 1 November 2016 at 01:06.
Forum: Great Ball Contraption > Great Ball Contraption Discussion

1 136 On 1 November 2016 at 06:49
by Captainowie

building instructions.

Posted by Maico on 26 August 2015 at 14:25.
Forum: Great Ball Contraption > Customs

21 2312 On 2 October 2016 at 17:54
by Maico