QW‑Modeller — Free CAD for QuickWave
Parametric, FreeCAD‑based modeller for building 3D, 3DP, and V2D (BOR) EM projects for QuickWave. Download via email and start preparing full simulation scenarios with no license required.
All “Download” buttons scroll to the download box at the bottom. Please use lowercase in your email address.
What is QW‑Modeller?
- Workbench on top of FreeCAD (OpenCascade kernel)
- Free to use for complete QuickWave projects
- 3D, 3DP, and BOR (V2D) project preparation
- Pairs with QW‑Simulator & Optimiser
Highlights
- Parametric design with variables & Spreadsheet
- Ribbon tools for antennas, waveguides & heating
- DXF/STEP/IGES in; QuickWave projects out
- Launch simulations and post‑process directly
Good to know
- No license required for modelling
- Works with QuickWave 2017+
- FreeCAD & OpenCascade under the hood
- Ideal for education & research setups
X-band Magic-T Coupler
Waveguide hybrid coupler modeled parametrically; ports & symmetry planes configured for QuickWave runs.

Patch Antenna Array
Array generator/ribbon with spacing, feed, and beam-steering variables; export to QuickWave in one click.

Axisym. Two-Reflector Cassegrain (V2D, BOR)
Axisymmetric geometry defined as profiles; BOR mesh and ports prepared for fast V2D studies.

Resources
We consolidated useful links here. “Supported formats” opens a quick reference.
Supported Formats — Quick Reference
Source: QW‑Modeller help. Use File ▸ Open, File ▸ Import, File ▸ Export, or CAD import/export menus as noted.
File Open
- QW‑Modeller project: .QWPro
- FreeCAD project: .FCStd
- Alias Mesh: .obj
- Autodesk: .dwg, .dxf
- BREP: .brep, .brp
- Binary Mesh: .bms
- Collada: .dae
- Common airfoil data: .dat
- IGES: .iges, .igs
- Images: .bmp, .jpg, .png, .xpm
- IFC: .ifc
- Inventor V2.1: .iv
- OFF mesh: .off
- Open CAD: .oca, .gcad
- PLY points: .ply
- Point format: .asc
- Povray: .pov, .inc
- STEP: .step, .stp
- STL mesh: .stl, .ast
- SVG as geometry: .svg
- Stanford Triangle Mesh: .ply
- VRML V2.0: .wrl, .vrml, .wrz
- Python: .py, .FCMacro, .FCScript
File Import (into current project)
- Alias Mesh: .obj
- Autodesk: .dwg, .dxf
- BREP: .brep, .brp
- Binary Mesh: .bms
- Collada: .dae
- Common airfoil data: .dat
- IGES: .iges, .igs
- Images: .bmp, .jpg, .png, .xpm
- IFC: .ifc
- Inventor V2.1: .iv
- OFF mesh: .off
- Open CAD: .oca, .gcad
- PLY points: .ply
- Point format: .asc
- Povray: .pov, .inc
- STEP: .iges, .igs (via CAD Import)
- STL mesh: .stl, .ast
- SVG as geometry: .svg
- Stanford Triangle Mesh: .ply
- VRML V2.0: .wrl, .vrml, .wrz
- Python: .py, .FCMacro, .FCScript
File Export
- Alias Mesh: .obj
- Autodesk: .dwg, .dxf
- BREP: .brep, .brp
- Binary Mesh: .bms
- Collada: .dae
- IGES: .iges, .igs
- IFC: .ifc
- Inventor V2.1: .iv
- OFF mesh: .off
- Open CAD: .oca
- PDF: .pdf
- STEP: .step, .stp
- STL mesh: .stl, .ast
- Stanford Triangle Mesh: .ply
- SVG: .svg
- VRML V2.0: .wrl, .vrml, .wrz
- WebGL: .html
Import CAD
- STEP: .stp, .step
- IGES: .igs, .iges
- BREP: .brp, .brep
Export CAD
- STEP: .stp, .step
- IGES: .igs, .iges
- BREP: .brp, .brep
QW-Modeller
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