3D Printed Electronics Enclosure Ideas: Project Boxes, Pi and Arduino Cases, Cable Management

A 3D printed electronics enclosure turns a loose board into a finished project, and it skips injection-mold costs that can run around $50,000, according to Slant 3D, a YouTube channel run by an engineer who prints enclosures for a living.

DigiKey, the electronics distributor’s YouTube channel, has maker Becky Stern describe her approach as a hollow box with holes in the right places. 3DSage, a YouTube channel about printing projects, built a standard case system that fits breadboards and small PCBs.

This roundup covers the most useful prints for electronics makers, with design tips from those creators.

Best 3D Printed Electronics Enclosure Projects

Prices checked on Amazon Oct 16, 2026. I may earn a commission from links, at no cost to you.

Project boxes

• Parametric project box generators (enter board size, get a box)
• Waterproof boxes for outdoor sensors (PETG or ASA)
• Snap-fit boxes for ESP32 and small boards

Single-board computer cases

• Raspberry Pi cases (with fan, screen or NAS drives)
• Arduino Uno and Nano cases
• Mini rack and cluster mounts

Cable and power management

• Under-desk cable trays and grids (3D printed cable clips)
• PC cable combs and GPU support brackets
• Power-brick holders and charger docks

Shop helpers

• Soldering helping-hand bases and spool holders
• Component organizers (Gridfinity)
• Wire label tags

Design Tips for Electronics Enclosures

• Add standoffs in the print; printed standoffs can be beefier than molded ones
• Leave air paths for parts that get warm
• Use snap-fits or heat-set inserts instead of self-tapping screws (threads and inserts)
• Print a fit test of the port cutouts first

Filament for Electronics

Safety: Do not house mains-voltage wiring in a printed box unless the design and material are rated for it.

Best Printers for Enclosures

What YouTube Creators Found About 3D Printed Electronics Enclosures

These are findings from popular YouTube videos, paraphrased from their transcripts and credited. They are the creators’ experiences and claims, not my test results.

• Slant 3D (Slant 3D: “Why You Should 3D Print Your Electrical Enclosures”) says the biggest reason to print enclosures is skipping injection-mold costs that can run around $50,000. He also argues printed standoffs can be made beefy enough that a technician cannot snap them off while driving a screw.
• The YouTube channel DigiKey with Becky Stern (DigiKey: “Creating Project Enclosures – Electronics with Becky Stern”) suggests prototyping in takeout containers or shadow boxes, and describes her 3D strategy as a hollow box with holes in the right places.
• 3DSage (3DSage: “Let’s 3D Print Electronic Cases”) made a standardized case system with a battery frame and a snap tooth closure that fits breadboards and small PCBs.
• On Reddit, makers say PLA works for cool-running boards, but they switch to PETG or ASA for anything that stays warm.

Hands-On Electronics Cases

Frequently Asked Questions

What filament is best for electronics enclosures?

PETG for most; PLA for cool, indoor boards; ASA for heat or sun.

Can I make a waterproof project box?

Water-resistant, yes, with a good lid design or gasket and PETG/ASA. Test it before trusting it.

How do I close a printed enclosure?

Snap-fits, sliding lids or screws into heat-set inserts.

Is there a project box generator?

Yes. Search “parametric project box” on MakerWorld or Printables.

Sources

• Slant 3D: “Why You Should 3D Print Your Electrical Enclosures”
• DigiKey: “Creating Project Enclosures – Electronics with Becky Stern”
• 3DSage: “Let’s 3D Print Electronic Cases”
• Amazon product listings for the printers linked above, October 16, 2026

Related: 3D Printed Cable Clips | 3D Printed Threads, Nuts and Bolts | Gridfinity for Beginners | Useful Things to 3D Print for Your Home