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GBC 10 Funfair – 42042 Building Instructions

(16 customer reviews)

19.95


Difficulty level: Easy - Medium - Hard

Detailed building instructions of the GBC 10 Funfair made from parts of the existing LEGO 42042 Crawler Crane set.

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

Not Including:
– The required LEGO set 42042. Available at    Amazon.com   &   ebay.com   &   LEGO.com   & Bricklink
– GBC Balls  →  Choose color
– (Optional) USB Power Box - Power Functions PF/PF  →  Learn more or Add to cart

It has never been easier to build a complete Great Ball Contraption (GBC) loop yourself! This GBC is entirely built using only parts from the LEGO Technic Crawler Crane 42042 set and uses 95% of all the pieces that come with it. It can also to be referred to as the model C of the 42042 Crawler Crane. This module makes sure you master the GBC building techniques and tricks so that you eventually also can build your own GBC. The whole machine is powered by one LEGO motor which comes with the LEGO 42042 Set.

 

 

 

Mechanical automation to its max

 

 

The loop of the GBC 10 Funfair contains 5 Modules and features in the center the big Ferris Wheel Module. But before we come to that let’s start at the beginning.
The GBC Balls starts at the Horizontal Mover Module which takes one ball at a time and then automatically turns them over 180 degrees to drop them into the next module. To make this work we designed a really effective return/pause mechanism which automatically changes the direction of the Horizontal Mover arm. The next module is the Conveyor Belt Module which brings the balls up to the Flip Flop Module. This module separates the balls equally over 2 bins. When a bin is filled up to 8 balls it will automatically empty itself and release the balls back into the loop.

The GBC Balls then go into the big Ferris Wheel Module which is fully mechanical automated. The ferris wheel has 4 cabins each holding 1 ball. The timings mechanisms, which releases one ball in one cabin, uses a specific gear ratios to get the timing right every time. The timing of entering balls into the cabins comes quite precise but when you have the timing just correctly everything works like a charm. After 3/4 of a revolution on the wheel the balls drop of and continue the loop by starting at the begin point again.
Batteries can easily be replaced. If you are out of batteries you can also power the whole GBC manually by turning the yellow handle.


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 10 Funfair


To enhance the fun and play and to take the GBC 10 Funfair one step further we have optional parts available.
In the building instructions is explained how to easily upgrade the GBC 10 Funfair with various parts.


USB Power Box

Never in need of batteries ever again! Power the GBC 10 Funfair with our USB Power Box.
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 10 Funfair all over the world

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16 reviews for GBC 10 Funfair – 42042 Building Instructions

  1. Ralf Ter beke

    Love this build. Had so much fun with it.

  2. Rik Mentink

    The building instructions are relatively clear, though when the build is finished I spent an equal amount of time fine tuning and changing the model to make it work. The machine blocks on multiple sub parts and balls keep falling out. It’s fun to build but I expected more of this contraption.

  3. Michael Lam

    HaHa , Final complete this GBC 10 from V7 today , no problem now , all function is work perfect . going to make GBC 9 , GBC 15 , GBC 11, GBC 14 or GBC 12 ……….. every module is VERY COOL !!!!!!

  4. Tan

    Much Appreciate the build. The creativity just amazes me!

  5. jolugoma

    With the recent update (the update to v7), everything works flawlessly.
    https://youtu.be/M0nMZ2B3L3U

  6. jolugoma

    Con las recientes modificaciones, todo es mas fácil.
    With the recent update (the update to v7), everything works flawlessly.
    https://youtu.be/M0nMZ2B3L3U

  7. Michael Lam

    Learn many skill from this model …. very Cool

  8. Michael Lam

    I build this with my 9 years son , he say this is very Cool !!!!!

  9. Johan

    I am building the GBC10 with my 5 yo son. It is a lot of fun.

  10. Alexandre

    Built it with my two children (4 and 10 years old). Received my balls today and fine tuned all the machinery this evening. They keep on saying “waw”, “cool”, “waw”… And so am I ;-) Very impressive conception. I’m so satisfied and curious about getting into a bigger GBC I just bought another instruction (GBC12). Maybe will I try to connect both… Thanks !

  11. Shawn

    I built this last weekend and got the orange balls today from PV. So much fun during and after the build process

  12. Lucas

    I did it. got it working
    Great that they are in pdf so they work flawless on my tablet

  13. 勝凱

    Defi worth building this. love it

  14. Mark

    Service from PV Productions has been excellent with great communication. I have received the instructions but haven’t built the GBC yet. I will post another review of the build once completed. It looks great… I may stop building the original crawler crane so that I can build this!

  15. Patrick

    Wow, just wow!

  16. John

    My grandson and I had so much fun building this together.

Add a review

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?!









v1 08-10-2016: Launch

v2 30-11-2016: Fixed double parts + Color correction

v3 06-01-2017: Added extra explanation lever system

v4 17-04-2017: Updated to new standard

v5 19-05-2017: Major update. The complete build where the GBC balls would exit the Ferris Wheel Module changed. To make the changes from v4 to v5 please follow the steps of the building instructions from page 35 till 70. We also made some big improvements on the connection issues in the timings mechanism for the Ferris Wheel Module and the direction change mechanism.

v7 01-06-2017:
We included the length numbers for axles, beams and other parts. A high requested feature which is really useful while building. Make sure to get this update.

v8 27-11-2017: We improved the building experience by showing the steps in more logical order with extra side information when needed. Now the building instructions have consistent page numbering. We incorporated a security feature which adds a password to the building instructions and links it to your account.

v9 22-12-2017: Updated watermarks & increased image size for a better building experience.

v10 26-06-2018: Update building instructions to new standard. Fixed step order on multiple places. Fixed double parts. See page 55, 147 (step 9).

















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