Atomium 3D model
A free, print-ready model of the Atomium in Brussels, Belgium. Download it on its own with a name plate, or print it standing on the real terrain around it.
- Location
- Brussels, Belgium
- Height
- 102 m
- Completed
- 1958
- Designed by
- André Waterkeyn, with architects André and Jean Polak
- Print size
- 100 × 89 × 120 mm at the default height
- Supports
- Tree supports recommended
About the Atomium
The Atomium was built for the 1958 Brussels World's Fair. Its nine steel-clad spheres, joined by tubes, form the unit cell of an iron crystal magnified 165 billion times.
What the model includes
The nine spheres, the tubes between them along the cube edges and diagonals, and the supports.
It is built from simple closed solids, so it slices cleanly and stands flat. In the download window you can set the height from 30 to 250 mm and add a base plate with the name in raised letters. The mesh has about 8,716 triangles, small enough to open in any slicer.
Print the Atomium on its real terrain
Map data stores most buildings as a flat outline with a height, so the Atomium would normally print as a plain block. In TerraPrinter, this model takes its place automatically. It is turned to match the outline in the map data and stands on the real elevation, with the streets, water and buildings around it.
More 3D landmarks
Questions
Is the Atomium 3D model free?
Yes. You can download the Atomium as an STL or 3MF for free, without an account, and print it as many times as you like.
What size should I print the Atomium?
At the default height of 120 mm it measures 100 × 89 × 120 mm. Pick any height from 30 to 250 mm before downloading. Thin parts like spires and antennas print better at 100 mm and up on a 0.4 mm nozzle.
Do I need supports?
Yes, use tree supports: parts of the Atomium overhang with nothing underneath.
Can I print the Atomium with the city around it?
Yes. "Print on its terrain" opens TerraPrinter with the area around the Atomium selected. When you generate the model, this landmark replaces the plain block from the map data and stands on the real terrain with the surrounding streets and buildings.





