Some renders show this model in another colourway.

Snap-lid board enclosure

A soft, rounded case for an Arduino Uno, an ESP32 or a Pico, with a lid that snaps on.

Uno case, closed: 80 x 66 x 23 mm
Esp32 case, closed: 61 x 38 x 23 mm
Print time: 3.6 h on 4 plates
Filament: 103.1 g

Colourway

Mistletoe green main
Jade white second
Gold accent

About the design

Each case is sized from its board's own drawings, so the USB and power openings line up and take moulded cable plugs, each framed in one wall below the seam. The lid snaps onto two clips hidden inside the base and lifts off at a thumb notch, and the reset and boot buttons flex in the lid itself. Small windows show the LEDs, a framed grille lets the board breathe, and the Uno has a second lid open over its headers. Boards with header pins sit on slotted rails, nothing needs supports, and the only screws are the Uno's own four.

What you can change

Board (Uno R3, ESP32-DevKitC, Pico)
Headers soldered or not
Wall, floor, corner radius and chamfer
Clearances round the board and the plugs
Snap clip length and depth
Flexing buttons
Grille, LED windows and header windows
Keyhole slots and a zip-tie loop

Specifications

Uno case, closed: 80 x 66 x 23 mm
Esp32 case, closed: 61 x 38 x 23 mm
Pico case, closed: 58 x 31 x 23 mm
Clip strain: 0.28 %
Button beam strain: 0.9 %

Printing

Plates, print hours and filament grams for each Bambu Studio project
Project	Plates	Hours	Grams
Snap-lid board enclosure, PLA Basic	4	3.6	103.1
Total	4	3.6	103.1

Times and weights come from the Bambu Studio 02.08.02.61 slice at 0.20 mm layers. Each figure is rounded on its own.

In the room

Some renders show this model in another colourway.

Credits and licence

The layout (a snap lid, buttons that flex in the lid and one framed grille) follows PLAUK's ESP32-WROOM-32 (USB-C) Box with Lid (https://makerworld.com/en/models/186291, CC BY 4.0). Every case is rebuilt from its board's drawings, and no file of PLAUK's is used.