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GBC Beginnings: The Birth of LEGO Great Ball Contraptions - BrickNerd - All things LEGO and the LEGO fan community
LEGO GREAT BALL CONTRAPTION (BRICKCON 2018) | LEGO Ball Machine Collaboration at BrickCon 2018 (More LEGO GBC at https://www.greatballpit.com/) | By Beyond the Brick | Facebook
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Lego ball-carrying device: 5 rings' full of industrial robot feeling that delivers balls endlessly with a robot arm - GIGAZINE
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2022 in LEGO GBC: Mighty Modules and Laudable Loops - BrickNerd - All things LEGO and the LEGO fan community
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