
30
Part of the GBC standard is accepting batches of up to 30 balls at once but a lot of modules actually fail at doing so...
The most comprehensive listing of Great Ball Contraption modules
Part of the GBC standard is accepting batches of up to 30 balls at once but a lot of modules actually fail at doing so...
GBC module inspired by the original Pac Man arcade cabinet. Successor to the Monkey Pong module, built in the same form...
GBC module inspired by the old Donkey Kong Arcade Machine by Nintendo. Can be run as a normal inline module or in...
Great Ball Contraptions (GBC) are intricate LEGO machines that transport small balls through creative mechanisms and modules.
This catalog is the world’s most comprehensive resource for GBC modules, featuring hundreds of modules from dozens of builders, a lot of them with build instructions. Whether you’re a seasoned builder or just discovering the hobby, you’ll find hundreds of unique designs to explore and build.
Start browsing to discover the amazing variety and ingenuity of the global GBC community.
If you build GBC modules, join our Discord server and get in touch with other GBC builders just like you!