
LEGO Great Ball Contraption (GBC) 20 modules
The Great Ball Contraption ( GBC) is a concept invented by Team Hassenplug: set up some kind of standardized interface for LEGO® based modules to enable them to interact, in this case to pass a ball. Based on this standard, LEGO® builders distributed all over the world are able to build their particular modules to take part in this special kind of LEGO Oriented Architecture (LOA).
IMPRESSIVE work and time invested to make this working!