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Dev board enclosure maker

Printable two-part case for a Pi, Arduino, ESP32 or your own board

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Dev board enclosure maker with its default settings

Screenshot of the tool as it opens; it is a real capture, not a mockup.

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What is it?

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What it makes

Two binary STLs in millimetres: a base with rounded corners, standoffs sized for M2, M2.5 or M3 heat-set inserts or self-tapping screws (or cradle clips for boards without holes), and port openings placed from the board's layout; and a lid with a snap-fit lip or screw holes, optional vent slots and your own cutouts, already turned over for printing. Ports that stick out past the wall get open-top slots so the board drops in, and tabs on the lid fill them. A design JSON records every setting.

How to use it

  1. Pick a board. The Raspberry Pi 4 is the default; Custom board starts from a blank outline.
  2. Check the board against the real thing with calipers, and fix anything under Board data: outline, holes, ports and tall parts.
  3. Set the wall and floor thickness, clearance, room above the tallest part and standoff height, then choose the screw size and whether it goes into inserts or self-tapped holes.
  4. Turn ports on or off and adjust their openings; add buttons, LEDs or cable glands under Extra cutouts.
  5. Choose a snap-fit lip or screw posts, vents and wall-mount ears, then your printer and nozzle.
  6. Clear anything red in Checks, then download the base STL, the lid STL and the design JSON.

Build notes

  • Board presets follow the makers' mechanical drawings where they exist (Raspberry Pi, Pico datasheet, Arduino reference, Feather spec, Espressif guide). Hole patterns are firm; some jack and header positions on the Uno, Feather and DevKitC are approximate. Measure yours.
  • Hole sizes: inserts M2 3.2 mm, M2.5 3.6 mm, M3 4.0 mm; self-tapping pilots M2 1.6 mm, M2.5 2.1 mm, M3 2.5 mm. Printed holes run small, so test one.
  • The wall check takes line width as 1.125 × the nozzle and wants at least two lines.
  • Geometry is built with @jscad/modeling (MIT), then welded and checked so every edge is shared by exactly two faces.
  • Works fully offline once opened; nothing is fetched.