Berner Altstadt

This is a 3D model of Berner Altstadt, Switzerland, at 1:10'000.

It measures 15.0 × 10.0 × 1.8 cm and covers real terrain between 496 and 571 m above sea level — heights are at true scale, with no vertical exaggeration.

WHAT'S IN IT

- Terrain from swissALTI3D: 0.5 m source data on a 0.5 m model grid

- Computed at 0.050 mm print grid, finer than the 0.2 mm a nozzle can show — so that buildings, trees and bridges survive the raster

- 6,385 buildings from swissBUILDINGS3D

- 49 bridge sections kept above the terrain

- 13 watercourses made to run downhill

- Place name and scale engraved into the underside

PRINTING

- The model is one closed, watertight body — 9,975,112 triangles

- 0.1–0.2 mm layers. Adaptive layer height suits relief well — fine on the ridges, coarse on the flats

- Base is 4 mm thick under the lowest point

- A separate drop-in frame is included: 15.6 × 10.6 cm, 6 mm tall. The model drops in from above and rests on an inner ledge — print it in a second colour

DATA

Built from the open geodata of swisstopo, the Swiss Federal Office of Topography:

- swissALTI3D (terrain)

- swissBUILDINGS3D (buildings)

- swissTLM3D (water bodies, bridges)

This data is free to use, including commercially, and derived works may be shared — provided the source is credited:

© Data: swisstopo

Made with Manifold, which turns swisstopo geodata into printable models.