# Licence - Creative Commons Attribution-ShareAlike 4.0 International

Release 2026-08-19. Applies to every file in this package, including each mesh listed
in `MANIFEST.json`.

## Who designed this

D-Central Technologies designed this part. The interface geometry, the CAD, and the
mesh in this package are our work, and D-Central Technologies is the licensor.

## What you may do with it

This design is open source. D-Central Technologies releases it under the Creative
Commons Attribution-ShareAlike 4.0 International licence:
https://creativecommons.org/licenses/by-sa/4.0/

Under that licence you may, for any purpose, commercial purposes included:

- download the files and keep them;
- print the part, in any quantity;
- sell the parts you print;
- modify the geometry, and print or sell the modified part;
- redistribute the files, original or modified, on any platform you like.

No permission request. No fee. No registration. No per-seat licence.

## What you owe in return

Two conditions, and only two:

1. **Attribution.** Credit D-Central Technologies as the original designer, keep this
   notice with the files, and link back to https://d-central.tech/3d-models/ where
   that is practical. Say if you changed something.
2. **ShareAlike.** If you distribute a modified version of the geometry, licence your
   version under CC BY-SA 4.0 as well. Derivatives of an open part stay open.

The full legal text at the link above governs. Nothing written here narrows the rights
CC BY-SA 4.0 grants you; where this summary and the licence text differ, the licence
text wins.

## Scope of the design

This part is airflow-interface geometry. It fits the hardware named in `MANIFEST.json`
and on the product listing, and that named list is the whole of it. It is not an
electrical enclosure, a fire barrier, a fan-delete device, or a guard, and it is not a
guarantee of airflow, temperature, noise, hashrate, or equipment life. Print it in the
material named in `MANIFEST.json` and follow `INSTALLATION_AND_SAFETY.md`.

## Trademarks

This licence covers the design. It does not grant rights in the D-Central name, the
D-Central logo, or our trademarks. Hardware names in these files identify the equipment
the part interfaces with; those marks belong to their owners.

---

D-Central Technologies - https://d-central.tech/
Download centre: https://d-central.tech/3d-models/
Fund the next design: https://d-central.tech/fund/
