After doing many years of Great Ball Contraptions we knew we were missing one crucial and never seen before module: The GBC Funnel! It is impossible to make a proper funnel with normal LEGO parts as the shapes are just too complex. That’s why we decided to make our own!

Which GBC Funnel to choose?

We have 3 types available, all both in a Left and Right version. Many of our GBCs use the GBC Funnels as an additional optional part to make the GBCs even more fun and engaging to watch. You can see the difference in behavior between the GBC Funnels in the videos below. Please check on the product page of the GBC you want to build which type and version is required. Get yours today and start rolling.

• GBC Funnel XL – Because the GBC Funnel XL is so big it can handle many GBC Balls at the same time and keeps them spinning for many rounds. The shape fits the LEGO banana gears perfectly which is both satisfying and handy.

• GBC Funnel Gravity Well – Due to the unique shape of the GBC Funnel Gravity Well, the GBC Balls can be manipulated and deflect the ball path, resulting in wacky curves. In size this GBC Funnel meets the middle between the XL and Turbo Spin which gives the best trade off between GBC Ball Quantity and speed.

• GBC Funnel Turbo Spin – The inner shape of the GBC Funnel Turbo Spin is designed to redirect more energy from incoming GBC Balls so it can handle faster spins in turbo style 😎 It’s also the smallest and lightest GBC in the GBC Funnel family which makes it very easy to implement in the smaller GBCs. Because it’s so light, less supports are required, making it really easy to even incorporate it on too high to support locations.

Below you can find a complete list which shows which GBC Funnels go into which GBC.

100% LEGO Compatible

Our GBC Funnels are unique 3D printed parts with a complex shape which gives a complete new spin to your GBC Balls. As the LEGO Technic builders that we are, we know what to look for when designing new parts and how to make the building experience with GBC Funnels great! During development we tested many, many prototypes to get to this perfect shape and feel. By doing so we were able to create a beautiful slick cone shape design which works perfectly for GBC Balls. A smooth input transition makes sure that every ball enters the GBC Funnel perfectly to preserve the most energy out of it. Depending on the input ramp and the speed of the balls, they can spin up to 10 rounds before falling through the center hole. We added many connection possibilities on all sides to make sure that you can easily attach the GBC Funnels in many different and diverse ways. In this way the GBC Funnels are 100% LEGO compatible.
The GBC Funnels are made from high quality material and printed with a very precise layer thickness and a decent infill. This results in a beautiful solid part with a perfect cone shape. It is always good practice to level your GBC Funnel as good as possible as this gets the maximal potential out of every GBC Ball rolling onto it.

See which GBC Funnels go where

List of GBCs which use the GBC Funnels

Preview

Rebuild your LEGO sets ...

Explore the wonderful world of Great Ball Contraptions and start engineering with our building instructions (Preview) right away! Get many more build and play hours from the LEGO set you already have! All our models are so called Alternate Builds, which are models entirely made from parts of an existing LEGO set. This makes it really easy to get yourself started today with the greatest feat of LEGO engineering there is. But it is so much more than that.

Learn more on our building instructions

The GBC Funnels all over the world