Brackets and mounts
Parametric PCB Enclosure - Snap-Fit Housing + Lid
- Bounding box
- 95.4 × 86.4 × 49.6 mm
- Engine
- Precision B-rep
- Parameters
- 30
- Published
- October 27, 2026
Download
Free to download and use. See the terms.
The prompt
Design a parametric 3D CAD enclosure for my electronic PCB. - External dimensions: 91 × 82 mm. - Two separate solid parts: bottom housing and removable top lid. - Internal components reach approximately 40 mm above the PCB. Make the enclosure tall enough to provide 3–5 mm clearance above the tallest component. - Add internal guide rails so the PCB slides into the housing from the top, like a CD. No PCB screws. - The lid must be removable upward and secured with reusable snap-fit clips, without screws. - Create exactly one side opening for the existing USB-C connector, aligned with its actual position. No other side openings. - Initial wall thickness: 2 mm. - Make dimensions, clearances, rails and clips editable. - Design for FDM 3D printing. - Output editable solid CAD geometry, with separate base and lid, suitable for STEP export. - Do not invent PCB dimensions or USB-C coordinates. Use adjustable parameters where measurements are missing.
Parameters
| Name | Value | Range |
|---|---|---|
| Outer Width (X) | 91 mm | 60 – 200 |
| Outer Depth (Y) | 82 mm | 50 – 200 |
| Wall Thickness | 2 mm | 1.2 – 5 |
| Floor Thickness | 2 mm | 1.2 – 5 |
| Outer Corner Radius | 3 mm | 0 – 8 |
| PCB Thickness | 1.6 mm | 0.8 – 4 |
| Tallest Component Above PCB | 40 mm | 5 – 100 |
| Clearance Above Tallest Component | 4 mm | 3 – 5 |
| PCB Width (Y) | 70 mm | 20 – 140 |
| Guide Rail Width | 2.5 mm | 1 – 6 |
| Guide Rail Depth | 3 mm | 1 – 8 |
| Rail-to-PCB Clearance | 0.4 mm | 0.1 – 2 |
| USB-C Opening Width | 10 mm | 3 – 30 |
| USB-C Opening Height | 4.5 mm | 2 – 15 |
| USB-C Position Along Wall (+X wall) | 0 mm | -60 – 60 |
| USB-C Height Above Base | 5 mm | 1 – 30 |
| USB-C Opening Corner Fillet | 1 mm | 0 – 3 |
| Snap Clip Count (even) | 2 pcs | 2 – 8 |
| Clip Finger Width | 8 mm | 3 – 20 |
| Clip Spacing (multi-clip) | 20 mm | 8 – 60 |
| Snap Engagement Depth | 0.8 mm | 0.2 – 2 |
| Snap Fit Clearance | 0.2 mm | 0.05 – 1 |
| Catch Height | 2.5 mm | 1 – 6 |
| Catch Depth Below Housing Rim | 5 mm | 1.5 – 20 |
| Lid Plate Thickness | 2 mm | 1 – 6 |
| Lid Skirt Thickness | 2 mm | 1 – 6 |
| Skirt Engagement Depth | 10 mm | 4 – 30 |
| Lid-to-Housing Clearance | 0.2 mm | 0.05 – 1 |
| Cantilever Finger Height | 7 mm | 3 – 20 |
| Flexure Slot Width | 1 mm | 0.4 – 3 |
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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