LEGO GBC | Great Ball Contraption
Another website with LEGO GBC information and links.
Getting Started You’ll need power function motors and a power supply. The can be purchased from https://shop.lego.com. I’d recommend starting by copying someone else’s design; several modules are listed below.
And you’ll need LEGO soccer balls, which are about $1 a piece.
May 28, 2025
#LEGO
#GBC
#Power
#9v
#Technic
Slow Scissor Stepper GBC Module
This GBC module consists of a large stair run by a scissor lift that slowly lifts balls up and over. This is the first module I’ve fully designed and tested; it is reliable and the motor can be run in either direction.
May 28, 2025
#LEGO
#GBC
#Power
#9v
#Technic
GBC Speed Regulation
This page will cover how to control the speed of your great ball contraption (GBC) modules. First the traditional 9V train controller will be covered followed by instructions on creating a cheaper, custom controller like the one above for about $10 each.
June 25, 2019
#LEGO
#GBC
#Power
#9v