https://github.com/queengooborg/opentag3d

Open source RFID standard for 3D printer filament spools
https://github.com/queengooborg/opentag3d

3d-filament 3d-printing nfc open-source open-standard rfid standard

Last synced: 4 months ago
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Open source RFID standard for 3D printer filament spools

• Host: GitHub
• URL: https://github.com/queengooborg/opentag3d
• Owner: queengooborg
• License: gpl-3.0
• Created: 2025-08-07T05:05:02.000Z (10 months ago)
• Default Branch: main
• Last Pushed: 2025-12-16T17:00:34.000Z (6 months ago)
• Last Synced: 2025-12-20T07:57:02.828Z (6 months ago)
• Topics: 3d-filament, 3d-printing, nfc, open-source, open-standard, rfid, standard
• Language: HTML
• Homepage: https://opentag3d.info/
• Size: 11.5 MB
• Stars: 17
• Watchers: 1
• Forks: 0
• Open Issues: 2
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
![OpenTag3D: Open Source Filament RFID Standard](./assets/images/logo.svg)

![Current OpenTag Version (see `_config.yml` for the current version)](https://img.shields.io/badge/dynamic/json?url=https%3A%2F%2Fraw.githubusercontent.com%2Fqueengooborg%2FOpenTag3D%2Frefs%2Fheads%2Fmain%2F_data%2Fspec.json&query=%24.version&style=for-the-badge&label=OpenTag%20Version)

RFID tags for 3D printer filament is becoming more prevalent, with every printer manufacturer trying to launch their own RFID standard, both closed and open source. With the ever-growing list of conflicting standards, the 3D printing industry needs a centralized standard that is not controlled by any single company, more than ever. OpenTag3D strives to be that standard as a community-driven specification.

OpenTag3D defines standards for the following:

- **Hardware** - The specific underlying RFID technology

- **Mechanical Requirements** - Positioning of tag on the spool

- **Data Structure** - What data should be stored on the RFID tag, and how that data should be formatted

- **Web API** - How extended data should be formatted when an optional online spool lookup is requested

## View Specification

The specification is hosted on the [OpenTag3D website](https://opentag3d.info/spec). Alternatively, you may view the raw Markdown file [here](./spec.md).

## Backers

OpenTag3D is backed by various companies that are implementing OpenTag3D into their printers, filament, add-ons, etc. See the list of companies [on the About page of the website](https://opentag3d.info/about#backers).

Want to join the list? [Open an issue here!](https://github.com/queengooborg/OpenTag3D/issues/new?template=backer.yml)