Brackets and mounts
NACA 4412 Wind Tunnel Wing
- Bounding box
- 80.0 × 10.2 × 150 mm
- Engine
- 3D Printing B-rep
- Parameters
- 4
- Published
- November 9, 2026
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The prompt
Create a single-piece, 3D-printable aerodynamic wing for a school wind tunnel experiment. **Airfoil profile:** - NACA 4412 - Accurate NACA 4412 airfoil geometry. - The wing must have a smooth aerodynamic surface. **Exact dimensions:** - Chord length: 80 mm - Wingspan: 150 mm - Wing surface area: 120 cm² - Constant airfoil profile along the entire wingspan. **Mounting hole:** - One continuous cylindrical hole running through the entire wingspan. - Hole diameter: 3.2 mm. - Hole positioned at exactly 25% of the chord length. - This means the hole centre must be 20 mm behind the leading edge (nose). - The hole must run parallel to the wingspan. - The hole must be straight and open at both ends. - It must accommodate an M3 threaded rod. **3D printing requirements:** - Print as one single solid part. - No separate components. - No supports inside the mounting hole. - Preserve the exact external dimensions. - Ensure the hole is not blocked by internal geometry. - Export as one STL file in millimetres. **Important:** The airfoil must retain its accurate NACA 4412 shape. Do not approximate it with a simple rounded or elliptical wing profile.
Parameters
| Name | Value | Range |
|---|---|---|
| Chord length | 80 mm | 40 – 200 |
| Wingspan | 150 mm | 50 – 400 |
| Mounting hole diameter | 3.2 mm | 2 – 6 |
| Hole centre, % of chord behind LE | 25 % | 12 – 40 |
Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.
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