Specification
3MF Specifications
The 3D Manufacturing Format (3MF) is a 3D printing format that allows design applications to send full-fidelity 3D models to a mix of other applications, platforms, services and printers. The 3MF specification allows companies to focus on innovation, rather than on basic interoperability issues.
The specification is now recognised as an International Standard: ISO/IEC 25422:2025 — Information technology: 3D Manufacturing Format (3MF) specification suite, under ISO/IEC JTC 1.
// Key facts
Published Extensions
Specification Suite
All specifications are freely available. 3MF members have agreed to make necessary patent claims available on a royalty-free basis.
| Specification | ISO/IEC 25422 | ISO PDF | Latest Rev. PDF | GitHub | Description | Updated |
|---|---|---|---|---|---|---|
| 3MF Core Specification | v1.3.0 | v1.3.0 | v1.4.0 | GitHub | Core 3MF Mesh Specification | 02/27/2025 |
| Beam Lattice Extension | v1.2.0 | v1.2.0 | GitHub | Beam lattice structures as graph of nodes and beam diameter | 02/27/2025 | |
| Boolean Operations Extension | v1.1.0 | v1.1.0 | v1.1.1 | GitHub | Boolean operations for shape modification | 04/03/2025 |
| Materials and Properties Extension | v1.2.1 | v1.2.1 | GitHub | Full color and multi-material definitions | 02/27/2025 | |
| Production Extension | v1.1.2 | v1.1.2 | GitHub | Non-object resources & attributes to the build section for uniquely identifying parts | 02/27/2025 | |
| Secure Content Extension | v1.0.2 | v1.0.2 | GitHub | Encryption mechanism to protect the 3MF content files | 02/27/2025 | |
| Toolpath Extension | v1.0.0 | GitHub | Machine toolpath data for additive processes | 09/17/2026 | ||
| Volumetric Extension | v0.8.0 | GitHub | Support for voxel and/or implicit data within 3MF files | 02/27/2025 |
// Testing
Test Suites
// Consortium
Membership
3MF members have agreed to make their necessary patent claims available for implementations of the 3MF Core Specification and all public extensions on a royalty-free basis.
The 3MF Consortium is a Joint Development Foundation Projects, LLC series — an affiliate of the Linux Foundation.
