Brackets and mounts
Parametric Forearm Shell
- Bounding box
- 76.2 × 64.0 × 200.3 mm
- Engine
- Precision B-rep
- Parameters
- 12
- Published
- October 24, 2026
Download
Free to download and use. See the terms.
The prompt
Generate a valid precision CAD model. Return the required structured object with exactly these fields: `title`, `param_schema`, and `script`. Do not return plain text, Markdown, or explanations. Create a parametric 3D-printable forearm shell: - Length: 200 mm along the Z axis. - Open C-shaped cross-section. - Wall thickness: 2.5 mm. - Wrist circumference reference: 180 mm. - Elbow circumference reference: 200 mm. - Slightly tapered along its length. - Two longitudinal mounting flanges along the open edges, with aligned screw holes. - Ventilation holes distributed along the shell. - Rounded edges. - Keep the interior clear for future components. - All major dimensions must be editable parameters. The model must be a real solid CAD geometry suitable for FDM 3D printing, not a rendered image. Include a parametric construction script and a parameter schema. If the requested geometry cannot be generated, return a structured error object instead of plain text.
Parameters
| Name | Value | Range |
|---|---|---|
| Length (Z) | 200 mm | 50 – 500 |
| Wrist Circumference | 180 mm | 100 – 400 |
| Elbow Circumference | 200 mm | 100 – 400 |
| Wall Thickness | 2.5 mm | 1 – 10 |
| Slit Width | 6 mm | 2 – 30 |
| Flange Thickness | 4 mm | 2 – 12 |
| Flange Width | 15 mm | 5 – 40 |
| Screw Hole Diameter | 4 mm | 2 – 10 |
| Screw Hole Count | 3 count | 1 – 8 |
| Vent Hole Diameter | 6 mm | 2 – 15 |
| Vent Hole Count | 4 count | 0 – 12 |
| Vent X Offset | -20 mm | -40 – -5 |
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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