Prusa CORE One Gets Official 400C Hotend Upgrade

Prusa Research started shipping its HT Hotend Upgrade for the CORE One family this month, giving desktop owners a path to high-temperature materials that used to require industrial machines. The quick-swap nozzle assembly bolts onto existing CORE One, CORE One+, and CORE One L printers without tools and pushes the maximum nozzle temperature from 300C to 400C.

That temperature jump adds PEKK-CF, PPS-CF, PPSU, and PPA-CF to the material menu, all of which demand sustained heat that the stock hotend cannot maintain. Prusa also promises better layer adhesion and stronger parts when printing ASA, PA, and PETG at the upper end of their temperature ranges.

The upgrade installs in under a minute. Owners can buy the official kit from Prusa's e-shop or download print-it-yourself files from Printables.com for a lower-cost DIY path. Pricing runs around €259 depending on region.

This matters because desktop printers have been closing the gap with industrial systems, but material selection remained the dividing line. A CORE One with the HT hotend can now handle aerospace-grade and automotive-grade filaments without a separate machine. For users who already invested in the CORE One ecosystem, the upgrade is cheaper than buying a dedicated high-temperature printer.

Prusa first showed the HT hotend at Formnext 2025. It's now in stock and shipping.