Enclosures and housings
3-Blade RC Boat Propeller D38 P1.4
- Bounding box
- 35.1 × 30.7 × 12.0 mm
- Engine
- Precision B-rep
- Parameters
- 14
- Published
- November 1, 2026
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The prompt
Generate a 3-blade marine propeller for an RC boat. The overall outer diameter must be exactly 38 mm with a pitch ratio of 1.4. Create a cylindrical central hub with a center bore hole of exactly 4.2 mm in diameter to accommodate a 4 mm metal drive shaft. Ensure the blade geometry is hydrodynamically accurate, with a smooth and continuous twist from the hub to the tips. Optimize the 3D mesh topology to be fully solid, manifold, and suitable for FDM 3D printing. Output the final model as an STL file.
Parameters
| Name | Value | Range |
|---|---|---|
| Outer Diameter | 38 mm | 20 – 80 |
| Pitch Ratio (P/D) | 1.4 ratio | 0.6 – 2.5 |
| Blade Count | 3 count | 2 – 6 |
| Shaft Bore Diameter | 4.2 mm | 2 – 10 |
| Hub Diameter | 10 mm | 6 – 20 |
| Hub Length | 12 mm | 6 – 30 |
| Hub End Chamfer | 0.6 mm | 0 – 2 |
| Root Chord | 8 mm | 3 – 20 |
| Mid-Span Chord | 10.6 mm | 3 – 25 |
| Tip Chord | 4.2 mm | 1.5 – 15 |
| Root Thickness | 2 mm | 0.8 – 6 |
| Mid-Span Thickness | 1.5 mm | 0.6 – 5 |
| Tip Thickness | 0.7 mm | 0.4 – 3 |
| Camber Ratio (m/c) | 0.04 ratio | 0 – 0.12 |
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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