Spinput GBC

Great Ball Contraptions (GBCs) are a staple of most LEGO conventions, the idea is simple create: a mechanical device to move balls from point A to point B, with a certain set standard. Then sit back and watch a) balls go flying b) kids be mesmerized for hours. It’s a challenging feet of engineering to create a mechanism that can withstand hours of continuous operation, typically the most prized honour for a GBC builder is the ‘Most Reliable’ award (or some variant). Unlike a lot of LEGO builds we see on The Brothers Bricks, aesthetics is not primary goal.

But sometimes, someone steps forward and combines all the above, and makes it beautiful, just cause. For example, Benjamin Corey (Bricktech) built this gorgeous GBC at BFVA this year:

You can watch it in action here:

You can also check out the whole GBC video from our friends at Beyond the Brick.