Enclosures and housings
Hollow TPU Tire with Chevron Tread
- Bounding box
- 30.0 × 30.0 × 15.0 mm
- Engine
- Precision B-rep
- Parameters
- 9
- Published
- October 27, 2026
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The prompt
Create a hollow 3D-printable tire with the following exact dimensions (millimeters): - **Outer diameter:** 30 mm, including tread peaks. - **Center bore:** 20 mm diameter, straight through the entire part. - **Radial wall thickness:** 5 mm. - **Axial width:** 15mm. - **Shape:** Symmetrical cylindrical tire with a centered through-hole. **Outer tread:** Add a simple, repeating triangular arrow/chevron tread pattern around the outer circumference. Keep the pattern shallow, evenly spaced, and suitable for flexible TPU. Recess the tread grooves inward so the maximum outer diameter remains exactly 30 mm. **Rounded edges and printability:** Chamfer both outer circular edges with a 45° bevel, approximately 1 mm wide. Add a small R0.3 mm fillet where possible without compromising the 45° bevel. Avoid sharp external edges and unnecessary overhangs. **3D printing requirements:** Optimize the geometry for TPU filament and FDM 3D printing, with the tire lying on its side and the center axis parallel to the build plate. Avoid supports wherever the geometry permits. Keep the central bore straight, unobstructed, and dimensionally accurate. Create one watertight, manifold solid. Do not add hubs, spokes, extra holes, text, or decorative elements.
Parameters
| Name | Value | Range |
|---|---|---|
| Outer Diameter (tread peaks) | 30 mm | 16 – 80 |
| Center Bore Diameter | 20 mm | 4 – 60 |
| Axial Width | 15 mm | 4 – 50 |
| Tread Groove Depth | 0.8 mm | 0.2 – 2 |
| Chevron Count | 16 count | 4 – 40 |
| Chevron Angle | 20 deg | 0 – 45 |
| Groove Width | 1.2 mm | 0.5 – 3 |
| Edge Chamfer (45 deg) | 1 mm | 0.2 – 2 |
| Edge Fillet Radius | 0.3 mm | 0.1 – 0.8 |
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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