Contribute
Open Filament is public — no account needed to browse, search, export or identify spools.
Improvements land on GitHub: pull requests for code and catalog data, issues for bugs and ideas.
Everyday use needs no login. Operator tools stay off the main menu.
For filament and printer brands
Want open, measured profiles and real exposure? Get in touch — samples and loan printers welcome, within the limits below.
Printers we can test on today
We currently calibrate only on these three printers (nozzle sizes in brackets):
- Creality K2 Plus (0.2 / 0.4 / 0.6 / 0.8 mm)
- Creality Ender 3 (0.4 mm)
- Flashforge AD5X (0.4 mm)
Filament or resin samples must be printable on one of these printers. If they are not (for example resin, or a material that needs another machine), ship a suitable printer together with the material.
Filament manufacturers
Send samples for calibration on the printers above. We measure, publish open profiles on Open Filament, and may film parts of the process for YouTube — useful exposure for lesser-known brands, the channel, and this site.
Printer manufacturers
You may ship printers for testing and profile work — especially when your material needs a machine we do not have yet.
Loan printers are returned only if you explicitly request return and include a prepaid return shipping label with the shipment. Without both a clear return request and a return label, the printer will not be sent back.
A YouTube channel with calibration footage is in the works. No channel link yet — we will add it here when it goes live.
Please email first. Do not ship parcels until we confirm the shipping address and what to send.
How to help
- Fork the repository on GitHub.
- Add or fix filament data, printer data, docs or code locally.
- Open a pull request. Maintainers review and merge.
- Or open an issue if you found a bug or want to propose something first.