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How to Design a Custom PCB Enclosure for Your Electronics Project

2026-09-27 06:00:00 | pcba-mkr

 

A custom enclosure protects your PCB and gives your product a professional finish.

Key Design Considerations:
1. Clearance: Leave 3-5mm gap between PCB and enclosure walls.
2. Mounting: Use brass heat-set inserts for M3/M2.5 screws.
3. Connectors: Cutouts must match USB, DC, antenna, switch positions.
4. Ventilation: Add vents for heat dissipation.
5. Access: Openings for buttons, displays, and LEDs.

3D Printing Tips:
- Use PETG or ABS for durability. PLA for prototypes.
- Design holes 0.2mm larger than screw diameter.

For production, consider sheet metal or injection molded enclosures.