Terms of Use
ParaMat is a free, open reference of 3D-printing filament settings, operated by
Sunnyday Technologies. By using it you agree to these terms.
No warranty — verify before you print
All values are aggregated consensus suggestions derived from public, openly licensed
sources. They are provided “AS IS”, without warranty of any kind, express or implied —
including fitness for a particular purpose. They are a starting point, not a guarantee:
filaments vary by batch, printer, and environment.
- Always verify with a small calibration print (temperature tower, flow test) before committing.
- Never exceed your filament's or your printer/hotend's manufacturer-rated limits.
- You are solely responsible for the settings you apply, including anything you write to an
NFC/RFID tag or import into a slicer. ParaMat and Sunnyday Technologies are not liable for
failed prints, material waste, or equipment damage.
Licenses
- Aggregated output data (what the tool shows and exports): CC BY 4.0 — attribute “ParaMat / Sunnyday Technologies”.
- Tool code: MIT, on GitHub.
- Upstream sources retain their own licenses (Open Filament Database·MIT, Cura materials·CC0,
slicer profile repos·AGPL-3.0 — used as aggregated statistics, never redistributed verbatim).
Privacy
Short version: no accounts, no cookies, no trackers, no personal data. Your shelf stays on your device and cameras are processed locally. Browser usage counters are opt-in; MCP tool calls are counted automatically only as anonymous monthly aggregates. All aggregates are public.
What stays on your device
- My filaments (shelf) — stored in your browser's localStorage only. It is never
uploaded. Export/backup is a file download you control; “Share” builds a link containing the
data, which is only transmitted if you send that link to someone.
- Barcode scan & label OCR — camera frames are processed entirely in your browser
(html5-qrcode, Tesseract.js). No image or video ever leaves your device. QR codes are parsed
for identity only; embedded URLs are never opened.
Browser usage counts (opt-in, off by default)
- If you tick “Share anonymous usage counts”, opening or exporting a material sends a single
event:
{event, brand|product, family, goal} — nothing else.
- We store only per-month counters per (event, material). We do not store your IP
address, user agent, or any identifier, and we set no cookies. There is nothing to link
events to you or to each other.
- The entire aggregate is publicly
readable — you can see exactly what we see. Untick the box to stop at any time.
- Exception: tapping “🚩 Flag it” on a result sends the same anonymous, aggregate-only
event even without the opt-in — it is an explicit action you take, and it's how we count
which materials need investigating. It carries nothing personal.
- Purpose: a neutral, cross-brand picture of which filaments the community actually uses,
published openly.
Agent and MCP usage counts
- Calls to the public ParaMat MCP tools are counted automatically as aggregate monthly events so agent usage is visible separately from browser activity.
- MCP telemetry never stores search text, barcode values, IP addresses, user agents, MCP client names, session identifiers, or any other per-user identifier.
- For a successful settings or barcode lookup, the counter includes the matched material identity and family. Searches and misses use generic labels only.
- Declared synthetic/load-test calls are stored under separate
test_* events and are not presented as community activity.
Hosting & third parties
- The canonical site is static and served by Cloudflare Pages; a GitHub Pages mirror may also be available. MCP and aggregate counters run on Cloudflare Workers. These services see standard request metadata in transit under their own privacy policies; ParaMat telemetry does not persist that metadata.
- The scanner and OCR libraries load from CDNs (unpkg, jsDelivr) only when you use those
features; those requests are subject to the CDNs' policies.
- Enhanced read (testing) downloads open OCR models (PP-OCRv4, PaddleOCR project,
Apache-2.0) to your device on first use (≈16 MB, cached by your browser) plus the
ONNX Runtime Web engine from jsDelivr. All recognition runs on your device — the photo
never leaves it.
Contact
Questions or corrections: GitHub issues
or paramat3d@sunn3d.com.
This page is a plain-language summary written in good faith; it is not a substitute
for legal advice.
