Enclosures and housings
Chewable Pen Attachment Assembly
- Bounding box
- 75.0 × 15.0 × 40.0 mm
- Engine
- Precision B-rep
- Parameters
- 14
- Published
- August 10, 2026
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The prompt
Create a 3D mechanical assembly for a chewable pen attachment, with 4 separate parts. 1. Main flexible capsule: - Vertical hollow cylinder, coaxial with Z. - Outer diameter: 15 mm. - Height: 30 mm. - Wall thickness: 0.60 mm. - Add a rounded dome at the top. - Add a regular grid of circular through-holes on the cylindrical wall only. - Keep the dome solid and unperforated. 2. Upper rigid protrusion: - Centered on the capsule axis. - Height: 10 mm. - Smaller diameter than the 15 mm capsule. - Extends upward from the capsule center. 3. Lower rigid base: - Coaxial with the capsule. - Designed to attach securely to a standard pen. - Create a cylindrical through-opening for the pen. - Keep the pen interface concentric with the capsule. 4. Transition: - Create a clean circular transition between the 15 mm flexible capsule and the rigid lower base. - No unwanted intersections. Total capsule + upper protrusion height: 40 mm. Use separate solid bodies for the flexible capsule and rigid parts. Preserve all dimensions exactly. Do not invent or change the 15 mm, 30 mm, 10 mm or 0.60 mm dimensions. Make the geometry suitable for prototyping and export as STEP/STL.
Parameters
| Name | Value | Range |
|---|---|---|
| Layout Gap | 20 mm | 10 – 50 |
| Capsule Outer Diameter | 15 mm | 10 – 30 |
| Capsule Wall Thickness | 0.6 mm | 0.4 – 3 |
| Capsule Overall Height (incl. dome) | 30 mm | 20 – 50 |
| Hole Diameter | 0.8 mm | 0.2 – 3 |
| Hole Rows | 6 | 1 – 20 |
| Hole Columns | 12 | 1 – 36 |
| Hole Margin (from top/bottom edges) | 2 mm | 0.5 – 5 |
| Protrusion Diameter | 12 mm | 5 – 14.5 |
| Protrusion Height | 10 mm | 5 – 20 |
| Base Outer Diameter | 15 mm | 10 – 30 |
| Base Height | 10 mm | 5 – 20 |
| Pen Opening Diameter | 8 mm | 4 – 12 |
| Transition Height | 3 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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