Sample CAD & 3D Files

Sample CAD & 3D Files for Testing

Download free sample files for CAD software, 3D printing, and BIM projects. Perfect for testing viewer compatibility, 2D/3D rendering, mesh geometry integrity, and data exchange.

DWG

AUTOCAD

Native Drawing

Standard binary format for AutoCAD. Test high-precision 2D and 3D architectural data.

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DXF

EXCHANGE

Drawing Exchange

Open vector format for CAD interoperability. Best for testing data translation between apps.

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STL

3D PRINT

Stereolithography

Universal format for 3D printing. Test mesh triangulation and slicer software compatibility.

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OBJ

MODEL

Wavefront 3D

Standard 3D geometry format. Test vertex data, texture mapping, and 3D rendering.

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IFC (BIM / OpenBIM)

ARCHITECTURE

Building Information Modeling

The global open standard for BIM. Test structural data exchange, metadata, and architectural object property sets across different software platforms.

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Providing high-quality CAD and 3D resources from AutoCAD DWG/DXF to OpenBIM IFC standards.

Technical CAD & 3D Resources

Testing 3D rendering engines, Slicer software (like Cura or PrusaSlicer), or BIM viewers requires geometrically complex dummy files. Our library provides clean, error-free models to help you validate mesh topology, texture mapping coordinates (UVs), and interoperability between different CAD systems.

  • 3D Printing: Use our STL and OBJ files to test manifold integrity (watertight meshes) and slicing speeds.
  • BIM Exchange: Our IFC samples contain rich metadata (IFC classes) to test data loss during import/export in Revit, ArchiCAD, or Blender.
  • Vector Precision: High-fidelity DXF/DWG files for testing plotter accuracy and CNC machine pathing.

Geometry & Data Types

Category Formats Data Structure Best For
CAD Vector DWG, DXF Curves & Lines (NURBS) Architecture, Engineering, CNC Machining.
3D Mesh STL, OBJ Polygons (Triangles) 3D Printing, Game Dev, Rendering.
BIM Data IFC Object-Oriented + Metadata Construction management, Facility data exchange.

3D & CAD FAQ

Are the STL files manifold (watertight)?

Yes. All our 3D printing samples are checked for non-manifold edges and holes, ensuring they are ready to slice without repair tools.

Which AutoCAD version are the DWG files?

Our DWG files are saved in a widely compatible version (typically AC1027 – AutoCAD 2013) to ensure they open in both legacy and modern software versions.