3D print the Nippon Budokan

A free, printable model of the Nippon Budokan's octagonal hall and sweeping roof, with the parkland, water and roads around it in Tokyo, generated from real map data in your browser.

Free, in your browser. Exports a slicer-ready 3MF.

A white 3D print of the Nippon Budokan, an octagonal hall under a wide sweeping roof with a ball at its peak, set in parkland beside water with roads and low buildings around it.
Studio render of an exported 3MF: Nippon Budokan on a 600 m square of Tokyo.

About the Nippon Budokan

The Nippon Budokan, shortened in everyday use to the Budokan, is an indoor arena located in Chiyoda, Tokyo, Japan, and its name means Japan Martial Arts Hall. It was originally built for the first Olympic judo competition, at the 1964 Summer Olympics, and its opening ceremony took place on October 3, 1964. It sits within Kitanomaru Park, at the heart of Tokyo, near the Imperial Palace. The octagonal structure is 42 meters (138 ft) high, holds 14,471 people, and is modeled after the Yumedono (Hall of Dreams) at Hōryū-ji in Nara.

Martial arts competition is its chief purpose, and the national championships of judo, kendo, karate and aikido are held there annually. For a time it was also popular as a stage for professional wrestling in Japan. Other events there include the Women's Volleyball World Championship of 1967. For the 2020 Summer Olympics it staged the judo and karate competitions, and for the 2020 Summer Paralympics it staged judo.

The arena has also become famous as a music venue, described as among the world's most outstanding. The first rock group to perform there was the Beatles, with five 30-minute concerts in the days from June 30 through July 2, 1966. ABBA's final live performance took place there in March 1980. Bob Dylan's Bob Dylan at Budokan (1979) and Cheap Trick's Cheap Trick at Budokan (1978) were both recorded there, and the venue is popular for live albums because of its good acoustics, its large size and audiences known for being quiet during performances.

How it prints

Make this print opens the generator on a 600 m square around the landmark. Buildings print at close to true scale, so the landmark grows with the print size.

Landmark height and scale at three print sizes
Print size Landmark height Scale
160 mm default 13 mm 1:3,750
200 mm 16 mm 1:3,000
256 mm 20 mm 1:2,344
  • Nippon Budokan model, North view North
  • Nippon Budokan model, East view East
  • Nippon Budokan model, South view South
  • Nippon Budokan model, West view West
Wide eaves and fine roof lines
The sweeping octagonal roof overhangs the walls and carries many fine ridge lines. Layers of 0.12 to 0.16 mm keep the lines crisp, and a larger print size keeps more of them.
Small ball at the peak
A small ball sits at the very top of the roof. Printing slowly and letting layers cool helps it, and Print friendly adapts it to the print scale.
One piece with the ground
The Nippon Budokan is joined to the ground in the exported file, and the four-side check found no floating parts, so nothing needs gluing.
Pick the detail for your nozzle
In the Buildings settings, set Landmark detail to Print friendly to adapt thin parts and small details to the print scale. Full detail keeps every modeled feature, for larger prints or a finer nozzle.
Colors
Buildings, roads, water and ground arrive as separate filament slots in the 3MF. The Nippon Budokan takes the building color.
File format
You get a 3MF for Bambu Studio, OrcaSlicer or PrusaSlicer. Any of them can save it as STL if you need one.

About this model

The Nippon Budokan is one of more than 2,300 landmark models in Mini Skyline. They are made with AI, and each one is checked from four sides in its real surroundings before release. Everything around it is built from OpenStreetMap and Overture map data. If you would rather print the shape from map data, turn off Landmark models in the Buildings settings.

Common questions

Is there a Nippon Budokan STL I can download?

Mini Skyline builds the file for you in your browser and exports 3MF, which every major slicer opens. If you need an STL, open the 3MF in your slicer and export it from there.

How big can I print it?

Any print size from 40 mm across. The Nippon Budokan grows with the print: about 13 mm tall on the default 160 mm print. For a model larger than your printer bed, Project Mode splits the area into tiles.

Is it free?

Yes. Generation runs in your browser, with no account and nothing behind a paywall.

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