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



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 account is all you need. How you can make this site better:
  • Spread the word!
Newly updated forums



Latest reply

Lowering the barrier to entry

Posted by ALittleSlow (administrator) on 2015-03-26 at 00:07:18.
Forum: Great Ball Contraption > Great Ball Contraption Discussion

5 215 On 2015-07-23 at 16:07:03
by ALittleSlow (administrator)

Page for "GBC standard"

Posted by Codyn329 on 2015-03-18 at 02:04:58.
Forum: Community > Community Discussion

12 302 On 2015-07-23 at 10:12:43
by Captainowie


Posted by Maico on 2015-07-19 at 13:25:58.
Forum: Great Ball Contraption > Customs

0 5