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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

• Frequently asked questions
• About this wiki
• Getting started

Upcoming GBC Events

North America

• Brickworld Michigan, September 23 & 24, 2017
• Brickworld Fort Wayne, October 14 & 15, 2017

Europe

• Festijn met Bouwsteentjes, Americahal, Apeldoorn, NL, September 9-10, 2017
• Skaerbaek Fan Weekend, Skaerbaek Fritidscenter, Skaerbaek, DK, september 23-24, 2017
• Bricks en Trains, Sporthal Maxx, Hoogeveen, NL, September 30 - October 1, 2017
• Brick Mania Seneffe, Seneffe, B, October 7-8, 2017
• LEGO World NL, Jaarbeurs, Utrecht, NL, October 18-24, 2017
• Festijn met Bouwsteentjes, IJsselhallen, Zwolle, NL, October 27-29, 2017
• Planet Brick Wetteren, Wetteren, B, November 4–5, 2017
• Brick Mania Antwerpen, Waagnatie, Antwerpen, B, November 25–26, 2017
• Festijn met Bouwsteentjes, Brabant Hallen, 's Hertogenbosch, NL, December 16-17, 2017

APAC

• BrisBricks Brisbane LEGO Fan Expo 2017 - 30th September to 2nd October 2017, Chandler Arena, Sleeman Sports Complex, Brisbane QLD, Australia.
• Brickvention 2018. January 20-21 2018, Royal Exhibition Building, Carlton VIC.

See also Past Events.

Browse

• List of great ball contraption resources
• Building Techniques
• Lift mechanism
• Widget
• Modules

Contributing

www.greatballcontraption.com QR Code

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/ShoutWiki account is all you need. How you can make this site better:

• Spread the word!

• Share the link: http://greatballcontraption.com
• Display the QR Code.

• Check out the Forums, especially the Community Discussion.
• Browse the Something needed category.
• Read the Manual of Style for guidelines on editing articles.