Convert X (DirectX) to 3MF Online — DirectX to 3D Printing (Beta)
Convert X (DirectX) files to 3MF (3D Manufacturing Format) for 3D printing with modern slicers like PrusaSlicer, Bambu Studio, and Cura. This bridges legacy DirectX game assets with modern additive manufacturing workflows. 3MF is the ISO/IEC 21067 standard for 3D printing, replacing STL as the preferred format for color and multi-material prints.
Last updated Mar 2026
Beta — 3MF support is experimental. Some models may not convert correctly.
Data Loss — Converting X (DirectX) to 3MF will not preserve animations.
Drag X (DirectX) file here, or click to upload
Supports .x files up to 150MB
Usually under 3 seconds — depends on file size.
What You Should Know
What Changes During Conversion
Geometry (triangles) is preserved. Basic material colors are converted to 3MF color resources. Skeletal animation, Frame hierarchy, and texture references are discarded. The output is a 3MF package ready for slicer import, but without print-specific metadata (supports, infill, orientation).
Print Readiness
Game engine models are designed for rendering, not printing. Common issues include non-manifold geometry, zero-thickness walls, open meshes, and inverted normals. Most modern slicers can auto-repair minor issues, but complex problems may require manual repair in MeshLab or Meshmixer before printing.
X (DirectX) vs 3MF: Quick Comparison
| Feature | X (DirectX) | 3MF |
|---|---|---|
| Primary Domain | Game engines / visualization | 3D printing / manufacturing |
| Materials | Basic diffuse/specular | Print-oriented (colors, resources) |
| Animation | Skeletal animation | Not supported |
| Print Metadata | None | Full (settings, supports) |
| Packaging | Single file (text/binary) | ZIP container (OPC) |
| Era | Late 1990s–2000s | 2015+ (ISO standard) |
Convert X to 3MF for 3D printing with color support. For simpler printing, convert to STL. For modern digital use, convert to GLB.
When to Convert X (DirectX) to 3MF
3D Printing Legacy Game Assets
Fabricate physical models of characters, vehicles, and props from legacy DirectX games. Convert to 3MF for the best slicer compatibility and material color support.
Physical Prototyping
Convert legacy DirectX CAD visualization models to 3MF for physical prototyping. 3MF provides better print fidelity than STL for models with color information.
Game Collectibles
Create physical collectibles from classic DirectX-era games. 3MF preserves color information that STL would lose, enabling multi-color printing on capable printers.