Brackets and mounts
SIWELLA V1 Protective Cap
- Bounding box
- 20.5 × 20.5 × 38 mm
- Engine
- 3D Printing B-rep
- Parameters
- 9
- Published
- November 12, 2026
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Free to download and use. See the terms.
The prompt
Create a precise parametric CAD model of Part No. 2 — SIWELLA V1 Protective Cap. PART TYPE: Removable cylindrical protective cap for a reusable miswak holder. EXACT DIMENSIONS: * Total length: 38 mm * Outer diameter: 18.4 mm * Inner diameter: 18.1 mm * Wall thickness: 1.2 mm * Insertion depth: 12 mm GEOMETRY REQUIREMENTS: 1. Create a hollow cylindrical cap. 2. The cap must be closed at the top and open at the bottom. 3. Maintain a uniform wall thickness. 4. Create a flat internal top surface. 5. Add a small internal insertion stop at 12 mm depth. 6. Add a slight internal lead-in chamfer of 0.3 mm at the opening. 7. Round the external top edge slightly for a premium appearance. 8. Keep the external surface smooth and minimalist. 9. No metal parts, springs, clips, logos or unnecessary decorations. 10. Design as one single watertight solid. FIT REQUIREMENTS: * Designed to fit over the SIWELLA V1 main body. * Main body outer diameter: 18 mm. * Cap internal diameter: 18.1 mm. * Nominal diametral clearance: 0.1 mm. * The cap must be removable by hand without excessive force. MANUFACTURING: * Suitable for FDM 3D printing. * Material: PETG. * Use millimeters. * Preserve exact specified dimensions. * Export as STL and OpenSCAD source. PART NAME: SIWELLA_V1_PROTECTIVE_CAP_02.
Parameters
| Name | Value | Range |
|---|---|---|
| Overall cap length | 38 mm | 20 – 80 |
| Mating holder body diameter | 18 mm | 10 – 40 |
| Diametral sliding clearance | 0.1 mm | 0.05 – 0.5 |
| Side wall / top thickness | 1.2 mm | 1 – 4 |
| Depth of the internal insertion stop | 12 mm | 5 – 30 |
| Bore diameter above the insertion stop | 14 mm | 8 – 17 |
| Opening lead-in chamfer | 0.3 mm | 0.2 – 1 |
| External top edge radius | 1.5 mm | 0.5 – 4 |
| External bottom edge chamfer | 0.6 mm | 0.2 – 2 |
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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