It has never been easier to build a complete Great Ball Contraption (GBC) loop yourself! The GBC 55 Spring Launcher features 3 modules which brings GBC Balls from one side to the other. The GBC can be used as a self contained loop or participate in a GBC layout.
This GBC is entirely built using only parts from the LEGO 42139 All-Terrain Vehicle set and can be referred to as Alternate Build of the 42139. This GBC makes sure you master the GBC building techniques and tricks so that you eventually also can build your own GBCs. By default the whole machine is powered by hand but it can easily be upgraded with any LEGO motor (more information in the building instructions).
3, 2, 1 LIFT OFF!
The GBC 55 Spring Launcher is a nifty little GBC that has its very own charm.
Building Instructions Preview
Try before you buy. We completely understand. See the building instructions previews on the left or try one of our free building instructions.
Upgrade your GBC 55 Spring Launcher
In the building instructions is explained how to easily upgrade the GBC 55 Spring Launcher with various parts.
Power & Automate
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Get the accessories
We have GBC Balls, handy electronics products and fun accessories available. Take a look at all our accessories!
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