.amf File Extension
.amf file contains, which applications open it, and how Poly supports this 3D format. File extension details for .amf
Full Support| File type | Additive Manufacturing Format |
|---|---|
| MIME type | |
| Encoding | XML text, optionally compressed |
| Operating systems | Windows, macOS, Linux |
| Opens with | Cura, MeshLab |
| Poly support | Yes. Poly recognizes valid Additive Manufacturing Format files and makes supported geometry and scene metadata available. |
| Indexed by Poly | Yes. Poly indexes the filename and creates visual similarity information for supported 3D content; available metadata is shown in details. |
| Preview in Poly | Yes. Poly previews supported Additive Manufacturing Format geometry and scene content. |
| Poly agent | Yes. An optimized rendition of the 3D object or scene is provided to the agent, allowing compact yet information-rich multimodal interaction with 3D files. |
What kind of file is a .amf?
AMF is an XML-based additive-manufacturing format. It can describe objects, materials, colors, lattices, and curved triangles, allowing more manufacturing information than a plain STL surface. The file may be compressed for distribution. The suffix normally uses the model/x-amf MIME type.1
How do I open a .amf?
Cura and MeshLab are practical applications for inspecting or preparing Additive Manufacturing Format geometry. Export to GLB for compact interactive delivery, or 3MF when additive-manufacturing metadata is the priority.
Poly support for .amf
Poly previews supported geometry, makes the filename searchable, and provides visual similarity for supported 3D content. Available mesh and scene metadata appears in the details panel. An optimized rendition of the 3D object or scene is provided to the agent, allowing compact yet information-rich multimodal interaction with 3D files.
| Construct | Poly handling |
|---|---|
| Geometry | Objects, volumes, triangles, and curved-triangle data |
| Materials | Material and color assignments may be represented |
| Manufacturing | Lattice and metadata constructs may be present |
| Poly limitation | Optional AMF constructs may not all appear in the preview |
Download the original when you need editing, simulation, print preparation, or exact project round-tripping.
History and alternatives
ASTM published AMF as an additive-manufacturing format intended to extend the information carried by STL. 3MF is a related modern choice when a broader manufacturing package and ecosystem are required. 1
Choose glTF or GLB for interactive scenes, OBJ for straightforward mesh exchange, and 3MF for manufacturing packages. Convert with a format-aware application and verify materials, scale, transforms, and resource paths afterward.
Footnotes
- ASTM International. Additive Manufacturing Format, F2915. ↩ ↩2