Lego GBC by Lawrie George

Lego GBC or Lego Great Ball Contraption is a form of Rube Goldberg machine where the aim is to move Lego sports balls from one machine to another.

The standard defines the rate of ball flow as well as the input and output bin sizes, and by having a standard it allows anyone to build a GBC module that they can then bring to collaborative displays.

Getting Started

Resources for getting started in Lego GBC.

GBC Modules

GBC modules I have built.

GBC Instructions

GBC modules with instructions.

Recent Posts

Brick Around The Block 2020

January 14th, 2021|Comments Off on Brick Around The Block 2020

Brick Around The Block was a unique take on Lego shows in that all the displays outside in peoples yards while attendees walked the neighborhood looking at them. The GBC layout was no exception [...]

Lego GBC Batch Counter

November 5th, 2020|0 Comments

Lego GBC Batch Counter is a Lego Great Ball Contraption Module built for the Great Ball Pit - Challenge 2020, and is a module designed to output a batch of exactly 13 balls (or [...]

Bricks by the Bay Vision 2020 (Virtual)

August 31st, 2020|Comments Off on Bricks by the Bay Vision 2020 (Virtual)

Bricks by the Bay took their show online this year and I got to present some highlights of my GBC loop like my lowered GBC section to the attendies. [...]

Coordinating GBC Shows

Coordinating GBC layouts can be a lot of fun and a lot of work, see the links below for my notes on the equipment and collateral needed for running GBC shows.

Coordinating GBC Shows

All the supporting modules, equipment, and collateral needed to run a show.

GBC utility Modules

Lego GBC Utility Modules including Reservoirs, Trains, Bridges, and Returns.

GBC Gear

GBC Gear including instructions, stickers, postcards and more.