Original Prusa® Pro HT90

Ultra-fast prototyping

Stop burning weeks on external lead times. Create prototypes, iterate, and produce functional end-use parts using advanced materials like ABS or PC-CF.

Producing end-use parts

Switch to the magnetically attached high-temp toolhead, and deploy small to mid-sized parts with high-temp polymers like PEEK, PEKK or PEI.

100% offline, 100% safe

Protect your intellectual property with optional fully offline operation and a removable Wi-Fi module. Keep design files, process settings, and production data inside your environment.

Simple workflow

With HT90, producing even complex geometries is straightforward, without requiring dedicated 3D printing specialists.

Rapid prototyping

Prototype in standard materials like PLA, PETG, or ASA in just hours. Bypass outsourcing delays and validate ergonomics and mechanical fit fast enough to run multiple design cycles in a single shift.

Industrial strength

Achieve production-grade results with advanced engineering polymers like PA-CF, PC-CF, and PA11. High-performance composites provide the structural stiffness and industrial toughness.

End-use production

Switch to the high-temp toolhead and unlock the capability to print PEEK, PEKK, and ULTEM – small-to-mid-sized components with the extreme thermal and chemical resistance needed for aerospace and medical applications.

PLA / PETG

Basic polymers for fast, cost-effective design iteration and functional parts. Validate ergonomics and finalize designs in a matter of hours.

NOZZLE 200-250°C / BED 60-90°C

ASA / ABS

Industry standard for tough, impact-resistant parts. The actively heated chamber maintains a perfectly stable environment for stress-free prints.

NOZZLE 240-265°C / BED 100-110°C

TPU / TPE / PEBA

Elastic materials bridging the gap between rubber and plastic. Perfect for gaskets, grips, vibration dampers, and wearable components.

NOZZLE 210-240°C / BED 40-60°C

PC-CF / PA-CF

Carbon fiber-infused composites resisting extreme wear and mechanical stress. Printing these highly abrasive materials is seamless on the HT90.

NOZZLE 260-280°C / BED 100-110°C

PEEK / PEEK-CF

Aerospace-grade polymers with extreme thermal and chemical resistance. Ideal for lightweight, mission-critical parts replacing metal.

NOZZLE 380-420°C / BED 130-155°C

PEKK / PPSU / PSU / PEI

The highest tier of advanced engineering thermoplastics. Replace metal with strength at a fraction of the weight.

NOZZLE 350-500°C / BED 120-155°C

3D Printing Industry

"HT90 achieved an impressive score of 88.22/100, demonstrating strengths in accuracy, repeatability, ringing suppression, and flow rate."

Voxelmatters

"The print was completed without any issue at all. There was no warpage, and the model stuck perfectly on the plate."

reddot

"With its clear, strictly functional design, the Prusa Pro HT90 3D printer is built for precise performance in demanding scenarios."

Prusa Filament Drybox

From $285.90

A hermetically sealed box for storing and printing moisture-sensitive filaments: PEI, PEEK, PEKK, PSU. Feeds the HT90 directly during printing, maintaining low humidity throughout the print job.

Memmert UF30 Dryer

From $3,199

A high-performance laboratory drying oven (20–300 °C) for precise filament drying before use. Reduces moisture to optimal levels for PEEK and PEI. The same equipment used in polymer research.

What materials can the HT90 print reliably?

With the high-flow head: PLA, PETG, ABS, ASA, TPU, TPE, PEBA, PA, PC, and carbon/glass-fiber composites. With the high-temp head and 90 °C chamber: small to mid-sized parts with PEEK, PEKK, PPSU, PSU, and PEI (Ultem). Both heads use Revo nozzles for fast swapping.

Can the HT90 print PEI (Ultem)?

PEI (Ultem) is printable on the HT90, but with important caveats. The 90 °C chamber is below PEI's glass transition temperature (217 °C), so larger parts may be more prone to warping or adhesion issues. Best results come from small to mid-sized geometries with careful process tuning. For higher repeatability in PEI at scale, systems with hotter chambers may be more appropriate. The HT90's strongest high-temp material is typically PC-CF.

Can Prusa Pro HT90 really print PEEK?

PEEK follows a similar logic to PEI on this machine. While the 500 °C nozzle easily handles the melt, the 90 °C chamber is below PEEK’s glass transition temperature (143 °C). This means that while the HT90 is excellent for small to mid-sized PEEK components, larger geometries may experience warping or internal stress. For users requiring massive, high-volume PEEK production at scale, a dedicated high-temp oven system might be more suitable.

What is the difference between the high-flow and high-temp print heads?

The high-flow head (up to 300 °C) is optimized for speed — PLA, PETG, ASA, ABS, TPU, carbon composites. It uses a standard Revo Ø0.4 mm nozzle. The high-temp head (up to 500 °C) is designed for engineering polymers — PC-CF, PEEK, PEKK, PEI, PSU. It uses a hardened Revo Ø0.6 mm nozzle. Switching takes seconds thanks to a magnetic connection, but requires the printer to be powered off. The high-temp head prints slower due to the higher thermal requirements of the materials.

How does delta kinematics compare to CoreXY?

In a delta printer, only the print head moves — the bed stays fixed. This means higher acceleration without the bed-ringing artifacts that appear in CoreXY machines at high speeds. Combined with Input Shaper, the HT90 achieves 250 mm/s with exceptional dimensional accuracy. Three loadcell sensors ensure perfect first-layer adhesion regardless of bed thermal expansion.

Do I need to vent the printer or build a dedicated enclosure?

No. The integrated HEPA and activated-carbon filtration handles particulates and VOCs produced when printing high-temperature materials. The HT90 is designed to run in a normal engineering office or lab environment without dedicated exhaust infrastructure.

How do I keep PEEK and PEI filament dry enough to print?

These materials absorb moisture quickly and will produce brittle, porous parts if printed wet. The Prusa Filament Drybox feeds the printer hermetically during printing. For pre-print drying, the Memmert UF30 laboratory oven handles temperatures up to 300 °C with precise control. Budget approximately $1,400 for the oven and $200 for the drybox — both are available from Prusa as accessories.

How does the price compare to other PEEK-capable printers?

The HT90 starts at $11,999 fully assembled. Comparable PEEK-capable platforms often start around $30,000–$50,000, and many include annual service costs. A realistic HT90 setup with a lab oven, drybox, and UPS is often around $14,000 — still substantially below many alternatives.

How does the HT90 compare to the Bambu Lab X1E?

The Bambu Lab X1E (~$1,500) is a system for engineering materials like PPS-CF and PPA-CF, but it cannot print PEEK, PEKK, or PEI — its hotend is around ~300 °C and the chamber is around ~60 °C passively. If your workflow genuinely requires high-performance polymers such as PC-CF, PC-GF, PEEK or PEKK for aerospace, medical, or defense applications, the HT90 is one of the few options near this price band.