Custom Electronic Device Enclosures: From Prototype to Production

By Mike Moussa, PE — Every electronic device needs a home. Here’s how we design and build custom enclosures that protect your electronics, look professional, and are ready for manufacturing.

Why Custom Enclosures?

Off-the-shelf enclosures almost never fit perfectly. They’re either too big (wasted space = wasted money), too small (redesign your PCB), or missing the cutouts, mounting features, and access points you need. A custom enclosure costs less than you think and looks 10x more professional.

What We Design Around

PCB dimensions and mounting holes — send us your board files (Gerber, STEP, or just dimensions) and we design the enclosure to fit
Connector locations — USB, HDMI, Ethernet, power, antenna — all get precise cutouts
Display windows — clear covers for screens, LEDs, or status indicators
Button access — tactile buttons, membrane switches, or touch-through panels
Thermal management — ventilation slots, heat sink mounting, fan cutouts
EMI/RFI shielding — conductive coatings or metallic enclosures when electromagnetic compatibility matters
IP ratings — sealed designs for water and dust protection (IP54 to IP67)
Mounting — wall mount, DIN rail, panel mount, desktop, or handheld

Enclosure Manufacturing Options

3D Printing (1-100 units)

Fastest path to a working enclosure. Print in ABS, Nylon, or Polycarbonate with snap-fit closures, integrated standoffs, and all cutouts. Sand and paint for a professional finish, or use SLA for smooth surfaces right off the printer.

Cost: $20-150 per enclosure depending on size
Lead time: 2-5 days

CNC Machined (1-500 units)

Machine from solid blocks of aluminum, ABS, or polycarbonate for a premium look and feel. Anodize aluminum for a professional finish. Best for rugged/industrial devices.

Cost: $50-300 per enclosure
Lead time: 5-10 days

Urethane Cast (20-200 units)

Production-quality plastic enclosures from silicone molds. Looks and feels injection-molded at a fraction of the tooling cost. Multiple colors and textures available.

Cost: $30-80 per enclosure + $500-1,000 mold
Lead time: 7-14 days

Injection Molded (500+ units)

When you’re ready for volume. We design the enclosure with injection molding in mind from the start — proper draft angles, uniform walls, gate locations — so the transition to tooling is smooth.

Cost: $3,000-15,000 tooling + $1-10 per part
Lead time: 4-8 weeks for tooling

Design for Electronics: Things Most Shops Miss

We’re engineers, not just modelers. We design enclosures that actually work:

PCB standoffs at the right height — so components don’t hit the lid
Cable strain relief — so yanking a cable doesn’t rip the connector off your PCB
Assembly-friendly design — snap fits, slide rails, or minimal screws for easy production assembly
Light pipes — guide LED light from the PCB to indicator windows on the surface
ESD protection — grounding features and conductive paths where needed
Label and branding areas — flat surfaces positioned for labels, silk-screen, or laser engraving
Battery compartment — with door, latch, and polarity markings for consumer devices

What We Need from You

PCB files or dimensions — STEP file is best, but a dimensioned sketch works too
Connector list — what plugs in and where
Environment — indoor/outdoor? Handled daily or permanently mounted?
Volume estimate — 10 units or 10,000? This determines the manufacturing process
Aesthetics — does it need to look consumer-grade, or is industrial/functional fine?

Get a Quote

Send us your PCB dimensions and we’ll quote the enclosure design and first prototype. Most enclosure projects go from first conversation to first prototype in under 2 weeks.

📧 info@partsnap.com | 📞 (214) 449-1455 | Send Your PCB Details