Looking for a new building challenges and want to have new extensions to the original LEGO 42042 Crawler Crane Machinery theme?
Then our GBC 42042 Pack – Machinery Sites is definitely the right choice for you!
While building learn more about physics, mechanics, gearing, forces, timing, logic, mechanisms and so much more crazy engineering madness you can do with LEGO. It doesn’t really matter if you are a GBC beginner or pro builder. Our models will show and teach you step by step building techniques and tricks in building great GBCs so that in the end you can eventually build your very own epic GBCs! How cool is that!
This GBC 42042 Pack consists out of all our 42042 C Model GBC building instructions on which you get instant extra discount.
To make sure you directly can start rolling, you can also get our GBC balls which are guaranteed to work perfect in all our GBCs. Having enough GBC Balls for your GBCs is important to make the ball flow go consistent and smooth looking.
See the GBC Machinery Sites in action!
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.
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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