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The Prusa Pro HT90 is a delta kinematics 3D printer with a cylindrical build area (Ø300 × 400 mm). It is specifically designed to maximize the potential of advanced materials such as ABS, ASA, PCCF and PA. Its heated chamber, which reaches up to 90 °C, and the innovative cooling system provide exceptional layer adhesion and print quality.

The HT90 allows you to print large objects without any warping, bad overhangs or layer delamination. In addition, the Input Shaper technology enables ultra-fast printing prototypes from PLA, PETG and similar materials, all of which can be easily printed even with a closed chamber.

Equipped with a replaceable print head with a high-temperature nozzle that can reach 500 °C, the HT90 also handles demanding materials such as PEEK, PEKK, PPS, PSU, PES, PEI (Ultem) for small to medium-sized objects. This makes it the most affordable 3D printer for high-performance filaments. The built-in recirculation loop constantly purifies the air inside the chamber through a HEPA filter. Both High-Flow and High-Temperature print heads are included in the package.

The printer is easy to set up and configure and offers both a fully featured offline operation for maximum security and a robust online print management system.

Features

Get the most out of your materials

The HT90 is designed to maximize the potential of materials such as ABS, ASA, PA, PCCF, Flex and more. Its 90°C heated chamber provides exceptional layer adhesion and print quality, enabling easy production of large objects without warping or layer delamination. The innovative servo flap redirects airflow to precise areas of the model within milliseconds, allowing the HT90 to print flawless overhangs with minimal supports without overcooling the printed object.

The most affordable printer for high-end filaments

The high-temperature print head, high-performance thermal coating, and actively heated chamber make the HT90 the most affordable 3D printer capable of handling advanced materials. Print small to medium-sized objects from filaments such as PEEK, PEKK, PPS, PSU, PES, and even PEI (Ultem), a material widely used in the aerospace industry.

From aerospace to medical

Thanks to its ability to handle a wide range of materials, the Prusa PRO HT90 is the preferred choice for many different industries. Print engine parts and coolers, medical implants and functional parts of machines, valves, pipes, chemical resistant components, durable heat and cold resistant parts and much more. No project is too demanding for the HT90.

Innovative rapid cooling solution

The unique air management system is designed for real-time airflow control and optimal print quality with all materials. The print fan is on the side of the printer and forces air through a tube directly into the lightweight print head, while the high-speed flap redirects its flow within milliseconds, faster than a normal cooling fan can. This allows for significantly improved overhang printing while the layers in the rest of the print do not suffer from overcooling.

Additionally, a closed air recirculation system with a HEPA filter keeps the chamber free of ultrafine particles, while an automatic intake flap controls temperatures for materials like PLA and PETG, allowing you to print them with the chamber closed. Key components are located outside the heated chamber, extending their lifespan.

Large and precise

Achieve unparalleled precision with the Prusa PRO HT90! We've tuned the print profiles so you can design precise parts and work with great accuracy. The print volume is a full cylinder with a diameter of 300 mm and a Z-axis of 400 mm. The printer has a small footprint, which is further enhanced by a vertical sliding door to save more space.

Replaceable printheads

The print head is held in place by magnets. Simply remove it from the arms, disconnect the cable from the top of the printer and replace it with a different model. The High-Flow print head with a quick-swap 0.4 mm Revo nozzle is the perfect choice for rapid prototyping with materials up to 300 °C. In contrast, the High-Temp head with an abrasion-resistant quick-swap 0.6 mm Revo nozzle reaches up to 500 °C and enables printing with materials such as PEEK, PEKK or PEI (Ultem). Both print heads are included with the HT90 and the hardware is compatible with all Revo nozzles with diameters from 0.25 - 0.8 mm.

Actively heated chamber with HEPA filter

The printer's actively heated chamber with a closed HEPA and carbon filter recirculation circuit can reach up to 90°C, providing an optimal environment for even the most demanding materials. Print large, robust objects from ABS/ASA without negative side effects such as warping or layer separation, use PLA for rapid prototyping, and create durable objects from PEEK or PEI.

High speed, great print quality

The HT90 delivers smooth, dimensionally accurate prints without the artifacts typical of CoreXY or Cartesian 3D printers. This is because the movement of the direct drive extruder is controlled by a coordinated shift of three lightweight arms, while the printed objects remain stationary. Equipped with Klipper firmware and Input Shaper technology, the HT90 achieves ultra-fast speeds while maintaining top print quality across the entire cylindrical print area.

Always perfect first layer

Three high-precision load cell sensors measure the distance between the nozzle and the print sheet with exceptional accuracy. This allows the printer to automatically achieve an absolutely pristine first layer, regardless of the print surface you choose, without the need for manual adjustment.

Easy setup, automatic calibration

Once you have unpacked the HT90, you can start printing in minutes. The entire setup process is quick and accompanied by easy-to-follow instructions. Everything is controlled using a large 7'' touchscreen. Finish the automatic calibration, load a filament of your choice, and start printing!

Maximum security with offline mode

We understand the importance of security in industrial applications. While the HT90 offers a comprehensive external print management system and monitoring, the printer is fully prepared for complete offline operation. You can even disconnect the Wi-Fi module from the printer. We do not collect information about your prints or your printer's surroundings. Whether you are developing a new generation of space shuttle or simply printing tools for your workshop, no organization should be interested in this information.

Robust remote control system

You can access two fully featured remote print control systems depending on your requirements. The HT90 offers both local and remote control modes - in local mode the printer can only be reached from local networks, but you can also add it to Prusa Connect, our secure remote printing system, so you can access it from anywhere. Furthermore, you can benefit from the built-in camera for print monitoring and chamber lighting. It is also possible to connect an external USB camera.

Accessories

Many of the exclusive materials are hygroscopic, meaning they quickly absorb moisture from the air. To prevent degraded print performance, filaments must always be kept dry. For this purpose, the HT90 can be purchased with either a Drybox or a full-scale industrial filament dryer.

Prusa Pro Filament Drybox

Memmert UF30 tumble dryer

The Memmert UF30 is a high-performance laboratory oven made of high-quality, hygienic, easy-to-clean stainless steel. It is the perfect solution for precise drying of filaments, with temperatures adjustable between +20 and +300 °C. Most high-performance materials are highly hygroscopic, meaning they absorb moisture from the environment.

This severely degrades their performance, even to the point of making them completely unprintable. With the filament dryer, you can easily reduce the moisture content to optimal levels. Once the filament is properly dry, you should place it directly into the Prusa Pro Filament Drybox to prevent repeated moisture build-up. The volume of the UF30 chamber is 32 liters.