Enclosures and housings
4-Spoke Flywheel 150mm
- Bounding box
- 150.0 × 150.0 × 15.0 mm
- Engine
- Precision B-rep
- Parameters
- 7
- Published
- November 5, 2026
Download
Free to download and use. See the terms.
The prompt
Create a precise, dimensionally accurate 3D CAD model of a mechanical flywheel for 3D printing. IMPORTANT: All dimensions must be in MILLIMETERS (mm). The model must be created at an exact 1:1 real-world scale. Do NOT resize, approximate, or modify any specified dimensions. EXACT DESIGN SPECIFICATIONS: 1. OUTER RIM: - Outer diameter: EXACTLY 150 mm. - Inner diameter: EXACTLY 110 mm. - Axial thickness: EXACTLY 15 mm. - Circular and symmetrical rim. 2. SPOKES: - Exactly 4 spokes. - Equally spaced at 90-degree intervals. - Spoke width: EXACTLY 8 mm. - All four spokes must connect the central hub to the outer rim. - Spokes must be symmetrical and structurally connected. 3. CENTRAL HUB: - Outer diameter: EXACTLY 25 mm. - Central shaft hole: EXACTLY 3 mm diameter. - Shaft hole must pass completely through the hub. - Shaft hole must be perfectly concentric with the flywheel. 4. MODEL REQUIREMENTS: - Create one complete, unified solid body. - No disconnected components. - No unnecessary holes or decorative features. - Maintain the exact specified dimensions. - Ensure the model is watertight and manifold. - Use clean mechanical geometry suitable for FDM 3D printing. 5. EXPORT REQUIREMENTS: - Export a high-resolution STL file. - Also provide a STEP (.STP) file for further CAD editing. - Preserve millimeter units during export. - Ensure the exported model maintains the exact 150 mm outer diameter. - Do not automatically scale the model. Before exporting, verify all dimensions and confirm that the model matches every specification above. The final output must be a printable 3D mechanical flywheel, not a rendering or a 2D drawing.
Parameters
| Name | Value | Range |
|---|---|---|
| Rim Outer Diameter | 150 mm | 80 – 300 |
| Rim Inner Diameter | 110 mm | 40 – 280 |
| Axial Thickness (rim, spokes, hub) | 15 mm | 4 – 60 |
| Number of Spokes | 4 count | 3 – 12 |
| Spoke Width | 8 mm | 3 – 30 |
| Hub Outer Diameter | 25 mm | 10 – 60 |
| Shaft Bore Diameter (through) | 3 mm | 1.5 – 25 |
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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