Two LEGO GBC (Great Ball Contraption) modules, Techbricks.nl version of Philippe E. Hurbain's Jigsaw and Archimede Screw. The Great Ball Contraption ( GBC) is a concept invented by Team Hassenplug: set up some kind of standardized interface for LEGOŽ based modules to enable them to interact, in this case to pass a ball. Based on this standard, LEGOŽ 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).Two LEGO GBC (Great Ball Contraption) modules, Techbricks.nl version of Philippe E. Hurbain's Jigsaw and Archimede Screw. The Great Ball Con...alles »Two LEGO GBC (Great Ball Contraption) modules, Techbricks.nl version of Philippe E. Hurbain's Jigsaw and Archimede Screw. The Great Ball Contraption ( GBC) is a concept invented by Team Hassenplug: set up some kind of standardized interface for LEGOŽ based modules to enable them to interact, in this case to pass a ball. Based on this standard, LEGOŽ 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).«