Getting Started with 3D Printing
Article author:
Eolas PrintsArticle published at:
June 17, 2026
Most desktop 3D printers top out around 290–300 °C at the nozzle and have little or no chamber heating. That's fine for PLA, PETG, even ABS — but it locks out the high-performance engineering polymers that aerospace, medical, and industrial work depends on. The Prusa Pro HT90 is built specifically to break that ceiling, and it does so at a fraction of the price of traditional industrial high-temp machines. Here's what it is and who it's for.
What Makes It Different: Heat, and Lots of It
Two numbers define the HT90. Its swappable high-temperature toolhead reaches 500 °C, and its actively heated chamber reaches 90 °C. Together, those unlock materials that warp, delaminate, or simply won't melt on a normal machine: PEEK, PEKK, PPS, PSU, PES, and PEI (Ultem) — the last of which is heavily used in aerospace for its flame resistance and strength-to-weight. The hot chamber is the critical part: high-temp polymers shrink dramatically as they cool, and only a uniformly heated chamber keeps a large part from cracking or lifting mid-print.
Key Specifications
| Architecture | Delta kinematics |
| Build volume | Ø300 × 400 mm (cylindrical) |
| Max nozzle temp | 500 °C (high-temp toolhead) |
| Chamber | Actively heated, up to 90 °C |
| Toolheads | High-temp + high-flow, both included, magnetically swappable |
| Air handling | Closed-loop HEPA recirculation |
| Control | Klipper, Input Shaper; full offline operation available |
| Made in | Prague, EU |
Two Toolheads: Production and Prototyping in One Machine
The HT90 ships with two magnetically swappable print heads. The high-temperature head (500 °C) handles the engineering polymers above. The high-flow head performs best at 300 °C and can lay down around 1 kg of PETG or ABS in roughly 8 hours — so the same machine that produces a PEEK bracket in the morning can run fast PLA or PETG prototypes in the afternoon. Swapping takes seconds. For a workshop or lab, that means one printer covers the full development cycle rather than needing separate machines.
Who It's For
- Engineering and manufacturing: functional end-use parts, jigs, fixtures, and chemically- or heat-resistant components in PA, PC-CF, and PPS.
- Aerospace and defence: PEI (Ultem) and PEKK parts, with optional fully offline operation and a removable Wi-Fi module for air-gapped, IP-sensitive environments.
- Medical and research: autoclavable and biocompatible high-performance polymers for implants, tooling, and lab equipment.
- Production bureaus: a single machine that prototypes in PLA/PETG and produces in high-temp materials.
Why It Matters Commercially
Industrial high-temperature printers have traditionally cost many times more than a desktop machine. The HT90 brings genuine PEEK/PEI capability to a desktop-sized, EU-made printer at a dramatically lower entry point — designed and manufactured in Prague, with the offline operation and data security that aerospace, defence, and medical buyers require. For businesses that currently outsource high-temp parts, bringing that capability in-house can pay for the machine quickly.
Available from Eolas Prints — Authorised Prusa Reseller
The Prusa Pro HT90 is a genuine Original Prusa machine supplied with full manufacturer warranty and EU support, shipped from Spain. As an authorised Prusa reseller, we also support business and B2B buyers with installation, training, and maintenance agreements — ideal for engineering teams, research labs, and institutions. Contact us for a quote or to discuss your application. For the full range, see our Prusa buyer's guide.