You’ll love to replicate the latest entry in the GBC4ALL series! The Robot Arm ball machine designed by the LEGO GBC builder Phi. L is equipped with an amazing articulated arm with incredible rotations. Thanks to a sophisticated gearing system, the central arm of this GBC module collects the balls in the reception bin and takes them to the top of the machine. The balls then go down a spiral staircase to the exit. As always with the GBC4ALL modules, this LEGO ball machine is easy to build with children, easy to motorize or to connect with other GBC modules of the series, and is made of easy-to-obtain LEGO TECHNIC bricks. The ingenious mechanisms of this Great Ball Contraption module will fascinate your children and teach them some basic mechanical concepts. Don’t wait any longer and discover this compact little GBC wonder through the ready-to-build kits available on Planet GBC.
Original design by: GBC4ALL
Number of parts: 379
Complexity for building: 
Price for Building: €, cheap
The spectacular Robot Arm, last GBC module from GBC4ALL series
Discover the GBC4ALL series, incredible LEGO ball machines
Buy 04-Robot Arm as a Ready-to-Build LEGO set
04-Robot Arm– from GBC4ALL
- Set with ALL bricks required
- 100% Genuine LEGO bricks
- Price includes Building Instructions
- Available on our partner website BuildaMOC.com
Note: picture illustrating the presented product is given as an indication to help you in your choice and is not contractual
 |
04-Robot Arm – from GBC4ALL
Building Instructions + Parts List 4,00€
|
|
>> More information |
|
Planet GBC Building Instructions and Ready-to-Build LEGO sets are just waiting for you !
Buy your GBC balls without breaking the bank !!
Quercetti marbles - 100 balls refill
GBC-compatible balls
Best Price6.90 EUR
Buy NOW
Buy cheap motor to run your Lego GBC !!
L-Motor - compatible LEGO Power Functions
GBC-compatible motors
Best Price3.71 EUR
- 30% discount
5.31 EUR
Buy NOW
Buy cheap USB-Rechargeable Battery Box, with speed adapter, to run your Lego GBC !!
USB-rechargeable battery box - compatible LEGO Power Functions
GBC-compatible battery
Best Price15.48 EUR
- 30% discount
22.12 EUR
Buy NOW
Share this Planet GBC article on your favorite social media!
wondering how many balls are included when you buy this as a set. The balls in your pictures are coloured differently than Lego has ever officially produced. Wondering if those are the balls that are included(if so, how can you claim your set is 100% official lego?).
hi Craig,
three LEGO balls are included in each GBC4ALL sets.
Balls are orange or white (depending on the set) and are genuine LEGO balls (respecting the rule about set 100% official LEGO)
In the videos, I indeed sometimes use Quercetti balls, a cheaper alternative to LEGO balls (on Amazon: https://amzn.to/3gcZFGx).
I do this to have a better contrast in the video editing.