# CR-BYOB: reconstructing the Creality Scan Bridge

> CR-BYOB reconstructs Creality Scan Bridge behavior in an Android app, letting Creality Scan discover a USB-connected scanner over a network. Its Java source handles scanner capture, bridge discovery and streams, with documentation for the communication paths and device compatibility.

- Type: Case study
- Targets: Protocol
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-08
- Added to the catalog: 2026-11-09
- Original resource: <https://github.com/NickLD/CR-BYOB>
- Primary source: <https://github.com/NickLD/CR-BYOB/blob/4e90ba3bfaead8a12d9c17b1c86d4a72bc1fba3f/README.md>
- Catalog page: <https://awesomerea.org/resources/cr-byob-case/>
- Record JSON: <https://awesomerea.org/resources/cr-byob-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/cr-byob-case/index.md)

## Requirements & limits

- **Prerequisites:** An Android 8 or newer phone with USB host and USB 3, a powered USB 3 hub, and a compatible Creality scanner are required.
- **Testing evidence:** CR-Scan Otter and Ferret Pro are reported tested; many other listed scanners remain untested.
- **Limits:** The bridge network services have no authentication and are intended for trusted networks.
- **License:** Licensed under MIT.

## Primary sources

1. <https://github.com/NickLD/CR-BYOB/blob/4e90ba3bfaead8a12d9c17b1c86d4a72bc1fba3f/README.md>
2. <https://github.com/NickLD/CR-BYOB/blob/4e90ba3bfaead8a12d9c17b1c86d4a72bc1fba3f/docs/README.md>

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## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.