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Enclosures & cases
Snap-lid enclosure for an Arduino Uno
A protective box for an Arduino Uno with openings for the USB-B port and barrel jack, and a lid that clicks on without screws. The Uno measures 68.6 x 53.3 mm with four irregular mounting holes; the base uses 3.2 mm posts at those points, 2 mm walls and 1 mm clearance. The lid has a 0.3 mm interference snap lip and an optional slot above the header rows so jumper wires can leave the box. Print both halves open side up. Open the ready-made model free, resize it on your phone or computer, then download a print-ready STL, 3MF or G-code sliced for your printer, free.Opening the ready-made model and downloading it as STL or 3MF are free, no card; AI changes use credits, from Maker at $7.99 a month.No printer? We print this part and ship it to your door. See its priceUpdated
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Adjust
Change its numbers in the viewer for free, or ask the AI in the chat: wall thickness, hole size, the thing it clips onto. AI changes use 2 credits per request (1 for a quick edit, 3 for a redesign), paid with a plan from Maker at $7.99 a month.3Print
Download a watertight STL or 3MF free, with your numbers and hand edits, or G-code sliced for your printer at the same price. After an AI change the download is included in every plan (4 credits without one).
Dimensions of the ready-made model (editable)
| Parameter | Value |
|---|---|
| pilot hole for M3 screw, no thread | 3.2 mm |
| snap interference reduces gap on inner side | 0.3 mm |
| from base floor top | 4 mm |
| outer clearance diameter for 2.1mm barrel jack body | 9 mm |
Example prompt
Create a snap-fit enclosure for an Arduino Uno (68.6x53.3 mm). Base with 2 mm walls, 1 mm clearance, 25 mm height, 3.2 mm standoffs at the Uno hole pattern. Cut-outs for USB-B and 2.1 mm barrel jack. Lid with 0.3 mm snap lip and a 50x8 mm header slot.
Fit notes
SpeakCAD lets you decide what leaves the enclosure and where: a slot for a shield's headers, a hole for a sensor cable, or a window for the on-board LEDs. Describe it, preview it in your browser, and tweak the snap tightness if your filament runs a little large.
Questions people ask about a snap-lid enclosure for an Arduino Uno
A protective box for an Arduino Uno with openings for the USB-B port and barrel jack, and a lid that clicks on without screws. The Uno measures 68.6 x 53.3 mm with four irregular mounting holes; the base uses 3.2 mm posts at those points, 2 mm walls and 1 mm clearance. The lid has a 0.3 mm interference snap lip and an optional slot above the header rows so jumper wires can leave the box. Print both halves open side up.
Click Open it free on this page and create a free account (no card): the ready-made model opens in your browser, on your phone or computer, nothing to install. Change its numbers in the viewer for free and download a watertight STL or 3MF free, or G-code sliced for your printer at the same price. An AI change in the chat uses 2 credits per request (3 for a redesign), and the download after it is included in every plan (4 credits without one). Start with Maker: 50 credits a month for $7.99, cancel anytime.
On this page: open the ready-made model free in a SpeakCAD account (no card), change any dimension in the viewer, then download the STL or 3MF free, or G-code sliced for your printer at the same price.
A shared STL is modelled for someone else's measurements. Here you open the ready-made model free, change it to your measurements in the viewer, then download a file sized for the part you actually own, free as STL or 3MF.
Yes. SpeakCAD slices the part on its servers with OrcaSlicer and your printer's official profile (380+ printers, including Bambu Lab, Prusa, Creality and Elegoo), and you download the G-code (a sliced .gcode.3mf for Bambu Lab printers). G-code sliced for your printer costs the same as the STL: included in every plan, free for a part you shaped by hand, 4 credits without a plan for a part with AI work in it. Pick your printer on the printers page to see its profile.
No. SpeakCAD runs in the browser on your phone or computer: the chat, the 3D engine and the live viewer load in the tab. The only file you download is the finished STL, 3MF or sliced G-code.
Print it your way
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