GBC 55 Spring Launcher – 42139 Building Instructions

€14.95


Difficulty level: Easy - Medium - Hard

Detailed building instructions of the GBC 55 Spring Launcher made from parts of the existing LEGO 42139 All-Terrain Vehicle set.

Including:
– Full HD PDF building instructions (Preview)
– Explanation & understanding of mechanisms
– Fine tuning tips & tricks
– Premium support 💎

Not Including:
– The required LEGO set 42139. Available at    Amazon.com   &   ebay.com   &   LEGO.com   & Bricklink  & ToyPro
– GBC Balls  →  Choose color
– (Optional) Technic Motor for LEGO  →  Learn more or Add to cart

Building Instructions soon available.
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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

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


To enhance the fun and play and to take the GBC 55 Spring Launcher one step further we have optional parts available.
In the building instructions is explained how to easily upgrade the GBC 55 Spring Launcher with various parts.




Power & Automate

Unfortunately LEGO set 42139 doesn’t include a LEGO motor. For that reason, the GBC 55 Spring Launcher is by default powered by hand. However we designed pre-designed motor mounts so you can easily upgrade the GBC 55 Spring Launcher with any of the LEGO Motors available and make it go on it’s own.
How cool is that!

   Learn more!







Get the accessories

In need of GBC Balls or you want to get rid of batteries? Don't look further.
We have GBC Balls, handy electronics products and fun accessories available. Take a look at all our accessories!

Get the accessories



The GBC 55 Spring Launcher all over the world

Have you build our GBC 55 Spring Launcher yourself, with your friends or family? Film and share as we would love to see it!

Upload today  &   Check all other Fan Builds







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If you don't have the required LEGO set there is still a chance you can build our models by using parts you already have. Most technic models use a lot of the same and/or replaceable parts. When watching the video and checking upon the building instructions you can easily see which parts can be replaced if you desire so.
What cool color designs can you come up with?!

Unfortunately the part list of the GBC 55 Spring Launcher is not available yet. Please check the part list of the original LEGO set.







The change log will be available once the building instructions are released.















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