3MF (3D Manufacturing Format)
Open Beta将三维建筑导出为 3MF——面向三维打印的现代标准。可在单个 ZIP 文件中保存颜色、材质和场景。在现代切片软件中推荐使用，优于 STL。
主要特点
关于 3MF 格式
3MF is an open 3D printing format from the 3MF Consortium, conceived as a replacement for STL. Inside it is a ZIP archive with an XML model, so a single file holds not only triangles but also colors, separate scene objects and metadata. Modern slicers — PrusaSlicer, Cura, Bambu Studio, Orca — read it out of the box.
A map is exported to 3MF for printing a physical model: a city district on a base, an architectural context model, a teaching aid. Compared with STL the gain is practical: buildings arrive as separate objects with colors by development type, and the slicer sees them individually instead of as one fused mesh.
The output is a single .3mf file: buildings extruded from OSM outlines by height or floor count, and a solid base plate under them so the model stands flat on the bed and needs no supports. The geometry is built in real-world meters and centered on the selected area — the final size of the model is set by the scale in the slicer.
打开 3MF 文件的程序
以下程序可以打开、编辑和处理从 OSM2CDR 导出的 3MF (3D Manufacturing Format)（.3mf）文件：
格式规格
- 开放标准
- 支持 3D 坐标
- 无损（无质量损失）
- 存储要素属性
- 输出：1 个文件
- 3D Manufacturing Format .3mf (3MF Consortium). Modern STL alternative with materials and metadata. PrusaSlicer, Cura, Bambu Studio.
谁在使用 3MF 地图
如何导出 3MF
导出后如何打开
- PrusaSlicer, Cura, Bambu Studio or Orca Slicer — File → Open/Import, then set the scale to fit your bed: the model arrives in real meters.
- Check before printing — look at the thinnest buildings: if a wall is thinner than a couple of nozzle widths, increase the scale or take a smaller area.
- 3D Builder (included with Windows) — quick viewing and editing: delete extra objects, check that the model is watertight.
- Blender or Fusion 360 — open the .3mf if the model needs finishing: trim the edges, add a caption or mounting points.
- Color printing — building colors are stored in the file, but they only come out on multi-material printing; on a single-color printer they are simply ignored.
3MF 格式的热门地图
常见问题
与其他格式比较
相关格式
经常一起导出
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