A cyberdeck is a homebuilt handheld computer, and it has quietly become one of the best teachers in the maker world. Maker MadHias recently shared a new one: a portable deck built around a full-size Raspberry Pi 5, a high-resolution display and a swappable power bank, with the printable files posted free on MakerWorld. It is a fun build on its own, but the more useful part is what the design choices tell you about printing enclosures for any electronics project.
The first choice is the board itself. MadHias skipped the Compute Module route, which needs a custom carrier board and costs more, and designed around a standard Pi 5 instead. That is the same trade-off you face every time you print a case: designing around common, cheap, easily replaced hardware means your printed shell stays useful when a part dies. The second choice is power. The deck runs from a 5V 3A power bank for portability, but the official Pi power supply can be swapped in for heavy loads without unscrewing anything. Serviceability designed in from the start, rather than bolted on later.
The third choice is the one most beginners miss. The Mini HDMI ports are left fully accessible so an external monitor can be plugged in at any time. A sealed, beautiful case that buries a port you need in six months is a case you will end up cutting open with a knife. Before you slice anything, list every port, button, LED and vent you might want to reach, then design the shell around that list.
To print a case like this well, a few habits do most of the work. Use PETG rather than PLA for anything enclosing a Pi 5 or a battery, because a small sealed shell traps heat and PLA softens early. Set 4 perimeters and 0.2 mm layers so the walls have real strength. Leave about 0.3 mm of clearance per side on every port opening, and print a small test coupon of just one USB cutout before committing to a six-hour shell. Orient each part so its largest flat face is on the bed, which kills most support requirements. And use brass heat-set inserts at the screw bosses so the case survives being opened repeatedly.
Try it on your printer. You do not need to build a whole cyberdeck to practise this. Print a simple two-part box for a spare Pi or microcontroller, dial in your port clearances, and press in your first heat-set insert. Once those three things work, every enclosure after it gets easier. If you need PETG that behaves predictably or hardware to finish the build, browse the filament and maker gear at Flarelab.
Frequently asked questions
Do I need a big printer to make a cyberdeck case?
No. Most handheld shells are split into two to four parts that each fit inside a 220 x 220 mm bed. Splitting the model also lets you orient every piece so its flat face sits on the bed, which is what actually gets you clean port cutouts.
Should I print an electronics enclosure in PLA or PETG?
PETG is the safer pick for anything holding a Raspberry Pi 5 or a battery. PLA starts softening around 55-60 degrees Celsius, and a small sealed shell with a hot board inside can get there on a warm day. PETG holds its shape roughly 20 degrees higher.
How much clearance should I leave around USB and HDMI cutouts?
Start at 0.3 mm per side and adjust from there. Elephant's foot on the first layers and slight over-extrusion both eat into openings, so a cutout modelled at exactly nominal size almost always prints too tight.
What is the easiest way to get strong screw holes in a printed case?
Brass heat-set inserts. You press them in with a soldering iron at about 200 degrees Celsius and get a real metal thread you can open and close dozens of times, instead of a printed hole that strips on the third disassembly.
Originally spotted via Adafruit. Project by MadHias, files on MakerWorld. Rewritten and expanded by the Flarelab team.
Originally published at flarelab.com.
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