Brackets and mounts
Raspberry Pi 4 Dual Relay Enclosure
- Bounding box
- 200.0 × 150.0 × 65.0 mm
- Engine
- Precision B-rep
- Parameters
- 29
- Published
- November 11, 2026
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The prompt
Create a professional, industrial-style 3D-printable enclosure for a Raspberry Pi 4 Model B (2GB RAM) and two 5V 2-channel relay modules. Dimensions: 200 × 150 × 65 mm. Construction: Separate base and removable lid. Base thickness: 3 mm. Wall thickness: 2.5 mm. Lid thickness: 2.5 mm. Rounded corners: 5 mm radius. Four Raspberry Pi mounting posts compatible with M2.5 screws. Features: Precisely aligned openings for all Pi 4 ports: 4 USB, Ethernet, 2 micro-HDMI, USB-C and audio jack. Access to GPIO and microSD. Separate mounting space for both relay modules. Cable entry and internal wire management. Symmetrical ventilation slots on lid and sides. Four screw-mounted lid positions. CRITICAL: Use verified Raspberry Pi 4 mechanical dimensions and port coordinates. Never guess or diagonally misalign port openings. Keep relay mounting positions adjustable until their dimensions are known. Appearance: Premium matte-black industrial design, clean geometry, rounded edges and professional finish. Create an editable CAD assembly and separate base/lid STL files plus STEP export. Validate dimensions, component clearances and port alignment before declaring the model complete.
Parameters
| Name | Value | Range |
|---|---|---|
| Enclosure Length | 200 mm | 100 – 400 |
| Enclosure Width | 150 mm | 80 – 300 |
| Base Height | 62.5 mm | 30 – 120 |
| Wall Thickness | 2.5 mm | 1 – 6 |
| Floor Thickness | 3 mm | 1 – 8 |
| Lid Thickness | 2.5 mm | 1 – 6 |
| Pi Board X Offset | 5 mm | 2.5 – 50 |
| Pi Board Y Offset | 5 mm | 2.5 – 50 |
| Pi Board Length | 85 mm | 60 – 100 |
| Pi Board Width | 56 mm | 40 – 70 |
| Pi Mounting Hole Spacing X | 58 mm | 40 – 70 |
| Pi Mounting Hole Spacing Y | 49 mm | 30 – 60 |
| Pi Standoff Height | 5 mm | 2 – 15 |
| Pi Standoff Diameter | 6 mm | 3 – 10 |
| Pi Screw Hole Diameter | 2.5 mm | 1.5 – 4 |
| Lid Boss Diameter | 7 mm | 4 – 12 |
| Lid Screw Hole Diameter | 3.2 mm | 2 – 5 |
| Relay Zone X Offset | 110 mm | 80 – 140 |
| Relay Zone Y Offset | 20 mm | 5 – 80 |
| Relay Module Length | 50 mm | 20 – 80 |
| Relay Module Width | 25 mm | 15 – 50 |
| Relay Pad Height | 2 mm | 0.5 – 6 |
| Relay Gap | 30 mm | 5 – 50 |
| Relay Mounting Hole Diameter | 2.5 mm | 1.5 – 4 |
| Vent Slot Width | 4 mm | 1 – 10 |
| Vent Slot Height | 20 mm | 5 – 40 |
| Vent Slot Count | 5 pcs | 1 – 10 |
| Cable Entry Width | 20 mm | 5 – 40 |
| Cable Entry Height | 12 mm | 5 – 30 |
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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