3MF 3D
CAD & 3D3MF packages manufacturing-oriented 3D data. It may contain geometry/units plus slicer-specific project settings. Distinguish standard model information from application-specific print settings.
- What it is used for
- Exchange of 3D geometry, units and additional information
- What the file contains
- Binary data
All sections, questions and sources
Content reviewed： · Editor：Kai
Opening steps
Choose your environment or purpose to see its steps.
Menu labels and support vary by app, OS and version. Preserve the original before making changes.
Troubleshooting by symptom
- Missing settings elsewhere: proprietary project settings differ from standard model data.
- Missing color/material: inspect extension and importer support.
- Unexpected print settings: compare supplied printer/nozzle/material values with your equipment.
- Printer settings change: inspect project-setting import choices.
- Colors/settings disappear elsewhere: inspect extensions and application-specific configuration support.
- Cannot print the saved 3MF directly: consult whether the machine needs sliced instructions.
3MF → STL / slicing output
- Select the intended model in compatible software and export separately.
- For printing, slice for your printer and inspect layers/material use.
- Distinguish geometry conversion from project saving and verify resliced output for your machine.
STL normally loses equivalent units, color and project settings.
Standard models and slicer projects
3MF may hold models alone or application-specific project data. Distinguish model import from opening a project.
Opening in another application does not guarantee all settings/extensions transfer.
Source for these steps：3MF Consortium · 3MF Specifications / Prusa Research · Supported file formats
Checks before printing
Match your printer, nozzle, material and build area and inspect layer previews.
Retain the original and separate the locally adapted project from machine output.
Source for these steps：3MF Consortium · 3MF Specifications / Prusa Research · Supported file formats
Related-format differences
| Format | Main role | Selection notes |
|---|---|---|
| 3MF | 3D model / accompanying data | Inspect project-setting support |
| STL | Primarily geometry mesh | Settings generally need separate handling |
| G-code | Machine instructions | Generate for the target machine |
Handling and security
Review supplied project settings/instructions and match them to your printer/material before printing.
Questions and answers
Is every 3MF a slicer project?
Some contain only model data.
Do settings transfer between all apps?
Proprietary settings/extension support can differ.
Does STL conversion retain color?
Ordinary STL does not.
Is 3MF equivalent to G-code?
Model/information storage differs from machine instructions; consult slicer and machine workflows.
Are settings identical across all slicers?
Support for proprietary data/extensions varies; review machine settings and reslice.
Format facts: name, steward and MIME type
- Formal name
- 3D Manufacturing Format
- Steward / specification
- 3MF Consortium
- MIME type
- Depends on the producer or server; an extension alone does not establish a MIME type.
Primary and official sources
- Standard3MF Specifications
Entry point to core 3MF and extension specifications.
3MF Consortium · Link checked： - Software documentationPrusaSlicer — Supported file formats
Documents 3MF projects and STL/STEP/OBJ import behavior.
Prusa Research · Link checked： - Software documentationSupported file formats
Slicer formats and 3MF project handling.
Prusa Research · Link checked：