Brackets and mounts
NACA 0012 Roller Airfoil Assembly
- Bounding box
- 29.5 × 299.6 × 9.5 mm
- Engine
- Precision B-rep
- Parameters
- 16
- Published
- September 28, 2026
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The prompt
Generate a clean, manifold 3D STEP/IGES assembly file of a modular mechanical airfoil assembly matching the following parametric design constraints. 1. WING BODY (Component 1): - Profile: Symmetrical NACA 0012 geometric coordinates. - Dimensions: Chord Length (X-axis) = 32mm, Symmetrical Extrusion Wingspan (Y-axis) = 298mm. - Features: Cut a continuous rectangular pocket out of the upper leading edge surface centered at X = 1.6mm (x/c = 0.05). Pocket depth = 2.5mm, extending uniformly along the entire 298mm span. - Mounting Interface: Extrude a horizontal cylindrical pass-through hole parallel to the Y-axis. Center the axis of this hole exactly at X = 8.0mm (25% quarter-chord position) from the leading edge apex. 2. PASSIVE CYLINDER ROLLER (Component 2): - Geometry: Concentric hollow cylinder tube. - Outer Diameter = 5.0mm, Inner Diameter = 3.2mm. - Length = 296mm (centered inside the wing body pocket to leave a 1.0mm mechanical clearance gap on both end walls). 3. CENTRAL ROTATION SHAFT (Component 3): - Geometry: Solid precision cylindrical dowel pin pin. - Diameter = 3.0mm, Length = 298mm. - Alignment: Positioned concentrically along the central axis of Component 2. 4. ASSEMBLY CONSTRAINTS & JOINTS: - Mate the Central Rotation Shaft (Component 3) concentrically into the center bore of two miniature R188 ball bearings press-fitted into counterbore seats inside the wing body side pocket faces. - Axis of rotation for the cylinder must remain completely parallel to the wingspan axis. Style output as a clean, low-polygon engineering model with distinct material shaders: matte gray plastic for the wing body, polished silver steel for the shaft, and a high-visibility gloss red finish for the rolling cylinder.
Parameters
| Name | Value | Range |
|---|---|---|
| Chord Length (X) | 32 mm | 10 – 100 |
| Wingspan (Y) | 298 mm | 50 – 600 |
| NACA Thickness Ratio | 0.12 ratio | 0.06 – 0.2 |
| Pocket Center (X) | 1.6 mm | 0 – 20 |
| Pocket Width (X) | 12 mm | 2 – 30 |
| Pocket Depth (Z) | 2.5 mm | 0.5 – 6 |
| Through-Hole Axis (X, 25% chord) | 8 mm | 1 – 30 |
| Through-Hole Diameter | 3.2 mm | 1 – 8 |
| Roller Outer Diameter | 5 mm | 2 – 12 |
| Roller Inner Diameter | 3.2 mm | 1 – 10 |
| Roller Length (Y) | 296 mm | 20 – 590 |
| Shaft Diameter | 3 mm | 1 – 10 |
| Shaft Length (Y) | 298 mm | 20 – 600 |
| Bearing Outer Diameter | 9.5 mm | 4 – 20 |
| Bearing Bore | 3 mm | 1 – 10 |
| Bearing Width / Seat Depth | 3.2 mm | 1 – 10 |
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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