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Enclosures & cases
ESP32-C3 SuperMini case with BME280 sensor vents
A tiny room sensor enclosure for an ESP32-C3 SuperMini board (22.5 x 18 mm) paired with a BME280 breakout (about 15 x 12 mm). The board slides into 1 mm rails inside a 34 x 26 x 16 mm shell with a USB-C opening on one end, while the sensor sits in a separate pocket behind a wall of 1.2 mm horizontal louvres so air moves across it without heat from the ESP32 skewing the reading. Walls are 1.5 mm, the lid presses on with a friction lip, and a 4 mm hole on the back takes a screw or a 3M strip. Print the shell open-side up with no supports. 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 |
|---|---|
| press-fit clearance | 0.25 mm |
| height of rails above base floor | 3 mm |
Example prompt
Model a small two-part sensor enclosure 34 x 26 x 16 mm with 1.5 mm walls, internal 1 mm rails for an ESP32-C3 SuperMini board 22.5 x 18 mm, a USB-C cutout, a separate 16 x 13 mm pocket for a BME280 breakout behind 1.2 mm louvred vents, a press-fit lid and a 4 mm rear screw hole.
Fit notes
Sensor housings need to match your exact breakout, not someone else's. In SpeakCAD you describe the boards, preview the enclosure in the browser, switch the pocket for a SHT31 or add a hole for a photodiode in the chat, and download the STL for ESPHome or Home Assistant builds.
Questions people ask about an ESP32-C3 SuperMini case with BME280 sensor vents
A tiny room sensor enclosure for an ESP32-C3 SuperMini board (22.5 x 18 mm) paired with a BME280 breakout (about 15 x 12 mm). The board slides into 1 mm rails inside a 34 x 26 x 16 mm shell with a USB-C opening on one end, while the sensor sits in a separate pocket behind a wall of 1.2 mm horizontal louvres so air moves across it without heat from the ESP32 skewing the reading. Walls are 1.5 mm, the lid presses on with a friction lip, and a 4 mm hole on the back takes a screw or a 3M strip. Print the shell open-side up with no supports.
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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