Best of BrickNerd - Article originally published October 20, 2022. If you have ever been to a LEGO convention, you are probably familiar with the noise of hundreds of LEGO balls rattling through a continuous chain of mechanical madness. But do you actually know where the tradition originally came from? As a GBC (great ball contraption) builder myself, I was quite curious about this question because I didn't even have the answer. So I did some research and this is what I found. Let's go back in time to see where the idea of GBC came from and how it all started. Ping Pong Ball Handoff It all started with a ping pong ball. In 2004, The Lafayette LEGO Robotics Club (LafLRC) created a challenge called the “Ping Pong Ball Handoff”. The idea was simple: receive a ping pong ball from the robot to your left and pass it to the...

