Gears and transmission
3-Blade Windmill Rotor v2 (8 mm shaft hub)
- Bounding box
- 156.8 × 179.3 × 29.2 mm
- Engine
- Precision B-rep
- Parameters
- 18
- Published
- November 7, 2026
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The prompt
3-blade windmill rotor with twisted, tapered, cambered blades and a streamlined hub that slides onto the gearbox's 8 mm aluminum output shaft and locks with two M3 set screws
Parameters
| Name | Value | Range |
|---|---|---|
| Rotor diameter | 200 mm | 100 – 400 |
| Number of blades | 3 | 2 – 6 |
| Blade chord at root | 24 mm | 14 – 40 |
| Blade chord at tip | 12 mm | 8 – 30 |
| Blade thickness at root | 3.4 mm | 2 – 6 |
| Blade thickness at tip | 1.6 mm | 1.2 – 4 |
| Camber (fraction of chord) | 0.06 | 0 – 0.1 |
| Design tip-speed ratio | 3 | 1.5 – 6 |
| Design angle of attack | 8 deg | 2 – 14 |
| Maximum pitch at root | 36 deg | 20 – 60 |
| Blade pitch-axis height on hub (fraction of hub length) | 0.55 | 0.3 – 0.8 |
| Blade root embed into hub | 3 mm | 1 – 6 |
| Hub outer diameter | 22 mm | 18 – 30 |
| Hub length (shaft engagement) | 16 mm | 10 – 20 |
| Spinner nose height | 9 mm | 4 – 20 |
| Hub bore for 8 mm shaft | 8.2 mm | 8 – 8.6 |
| Set-screw tap hole (M3) | 2.5 mm | 2.2 – 3.2 |
| Gap between hub and cover boss (reference shaft) | 4 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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