Methodology
Prices
Prices sync daily from brand stores and marketplaces via automated pipelines (Shopify/WooCommerce store APIs and page extraction). Each price is stored with its source, currency, and timestamp; anomaly detection flags suspicious jumps before they reach the site. Price history on a filament page is the raw daily record, not interpolated.
Deals
A deal is a store's own discount: current price versus the store's listed compare-at price. We exclude implausible discounts (over 70% off, or items under $5) because they're usually data errors or per-unit pricing tricks, not real deals.
HueForge TD values
TD (transmission distance) values come from brand-published data and community measurements, stored with a confidence level and source. Values without a verifiable source are marked unverified.
Printer compatibility
Compatibility verdicts check three things against your printer: whether the material is on the manufacturer's official supported list, whether abrasive filaments meet a hardened filament path, and whether the filament's required nozzle temperature is within the printer's maximum. A caution is a flag to check further, not a hard no.
Affiliate links and independence
Store links may be affiliate links (see the affiliate disclosure). Commissions never influence prices shown, deal rankings, compatibility verdicts, or TD values — all of those are computed from the data pipeline with no manual placement.