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From The Great Ball Contraption Wiki
A GBC Collaboration

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

  • Brickworld Chicago, 2019
  • BrickFair Chantilly VA, August 2019 brickfair.com
  • BrickCon Seattle WA, October 2019
  • Brickdays Lincoln, November 2019
  • BrickCan Richmond BC Canada, May 2020



See also Past Events.

Edit events



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