techmannih/usbc-charger

This code defines a detailed electronic hardware design for an 85-265VAC to USB-C PD 18W wall charger, including the schematic layout and physical component placements such as connectors, filtering inductors, capacitors, resistors, protection diodes, and an isolated power module, all integrated with 3D models and mechanical enclosures.

Version: 1.0.7
License: unset
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.agents/skills/tscircuit/elements/enclosurefdmbox.md

# `<enclosure.fdm.box />`

Generates a two-part 3D-printable enclosure around a board: a base and a lid with
a friction-fit lip, sized from the board plus clearances, with an opening cut for
every aperture the enclosed parts declare.

Place it as a sibling of the board, inside an
[`<assembly.device />`](./assemblydevice.md), and point it at the board:

## Example

```tsx
import { assembly, enclosure } from "tscircuit"

export default () => (
  <assembly.device name="widget">
    <board name="B1" width="52mm" height="36mm">
      {/* parts, some carrying <enclosure.cutoutaperture /> */}
    </board>
    <enclosure.fdm.box boardRef=".B1" />
  </assembly.device>
)
```

Every dimension is optional. Width, height and depth are inferred from the board
and its parts unless given -- and the inferred depth grows, when needed, until
the lid and its lip clear every side-wall opening.

## Seeing inside it

Nothing to author. Enclosure parts render see-through by default, so the board
and its parts stay visible while you check the openings against them.

How a part is *shown* is a property of looking at it, not of the part, so it is
not a prop and does not appear in the circuit JSON: the geometry and every
export are identical either way. In the 3D viewer, **Appearance → Enclosure**
cycles the assembled base and lid together through see-through -> solid ->
hidden. Independent base/lid controls are deferred until Circuit JSON carries
an explicit role for each printed part.

## Props

Commonly used: `boardRef`, `width`, `height`, `depth`,
`wallThickness`, `floorThickness`, `lidThickness`, `standoffHeight`,
`boardClearance`, `topHeadroom`, `lidLipDepth`, `disableCutouts`

`topHeadroom` is the empty distance from the PCB's top surface to the inside of
the lid -- it is **not** clearance above the tallest component. Omitted, the box
may grow to clear parts that declare enclosure apertures. Set explicitly, it is
taken literally and aperture-owning parts stop growing the box; other tall parts
are not inferred, so check their CAD height yourself.

## References

- Props: [EnclosureFdmBoxProps](https://github.com/tscircuit/props/blob/main/lib/enclosure/fdm/box.ts)
- Solver: [@tscircuit/create-fdm-enclosure](https://github.com/tscircuit/create-fdm-enclosure)
- See also: [`<enclosure.cutoutaperture />`](./enclosurecutoutaperture.md), [`<assembly.device />`](./assemblydevice.md)