Behold the Lego Great Ball Contraption (GBC), dreamed, designed and built by a 21 year-old Japanese college student who goes by the name of Akiyuki, (Akiyuky if you want to search him on YouTube).
Taking over 600 hours of work, this robotic wonder is the perfect blend of engineering and art as the 31 meters of 17 intricately built stages hypnotically and seamlessly operate with the sole existential purpose of moving tiny plastic soccer balls and basketballs in a perpetual loop.
It was designed using Lego Mindstorm, which is a line of Legos bundled with various programmable CPUs, sensors, and motors to create fully functioning robots. Akiyuki’s creation utilizes a large sized robotic arm, but that is just a drop in the bucket of whimsy that is the GBC.
This contraption is a clicking, clacking, cacophony of claws, clamps, conveyors, catapults, carousels, cranes, carts, cogs and coils that would make Willy Wonka and Pee-Wee cry on each other’s shoulders in shame.
But the best way to experience this machine is to watch the video for yourself. Better get a snack first though, it’s a long trip. You’d probably have to watch it again to catch everything too.
If you’d like to learn more about the GBC you can visit Akiyuki’s blog. It’s in Japanese but has many videos and photos outlining the various components.
Source: Lego Technic via Irorio (Japanese)

LEGO “ball contraption” at Japan Brickfest is hypnotizing in its mechanical efficiency 【Video】
Hatsune Miku collaborates with Hokusai’s art in new Vocaloid ukiyo-e illustration series [Pics]
Japan now has human refrigerators inspired by Japanese vending machines
Teen girl in Japan refuses to be victim, personally escorts train pervert to police for arrest
Starbucks Japan releases new Discovery Series collection celebrating local regions and traditions
Studio Ghibli releases anime T-shirts that pay homage to one of Hayao Miyazaki’s most personal films
Is Japan’s tourism boom slowing down? Foreign visitor numbers fall for first time in five years
Mass murder plot stopped by friend of Akihabara mass murderer
Evangelion beautifully reimagined as iconic classical Japanese folding screen art series [Photos]
Cup Noodle unveils first-ever cold-water instant ramen in Japan
Starbucks Japan adds new Frappuccino, Tea, and Chillax Soda to its limited-edition summer menu
Studio Ghibli has a new anime out, and there’s only one place in the world where you can see it
Family Mart opens new “Famima” flagship store in Tokyo that’s like a tourist attraction
Uniqlo looks back to the very start of Pokémon with new black-and-white pixel art T-shirts[Pics]
Japanese government ID card and app to be required for certain Pokémon card purchases next month
Japan reacts to Donald Trump’s “Islamic Republic of Japan” remark
Three new starter Pokémon Jets to fly in Japan, first begins carrying passengers this month
Solid gold Hedorah kaiju from the Godzilla series is now available to pre-order
Japan announces sudden 400-percent increase in visa fees for foreigners entering the country
Japanese ninja certification exam attracts 131 candidates from Japan and abroad
Salomon releases Japan-exclusive Mt. Fuji hiking gear that doubles as an amazing souvenir
Japan triples departure tax, foreign tourists and locals now must pay more to leave country
Japan launches first overnight Shinkansen bullet train between Tokyo and Osaka this summer
Studio Ghibli store Donguri Republic announces opening of first-ever store in America
Japanese sweets shop sells an ohagi so exquisite it sells out by noon
Sanrio Character Poll announces winners, Hello Kitty absent from top 10 in many countries
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Starbucks Japan releases new drinkware and goods for Valentine’s Day
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Japan’s newest Shinkansen has no seats…or passengers [Video]
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
Japan reportedly adding Japanese language skill requirement to most common foreigner work visa