Prusa Research

Prusa Research a.s., commonly referred to as Prusa, is a Czech company that produces 3D printers, and was the world's second largest 3D printer manufacturer in 2020.[2]

It was founded in 2012 by Josef Průša, a developer in the RepRap project which has a strong emphasis on open-source hardware. In the past, all printers produced by the company were open source – their design plans were fully available online and anyone could use them, for example to improve an existing printer.[3] Some examples are the Prusa i3, Prusa Mini and Prusa XL.

As of 2023, the company started partially abandoning this open-source concept due to competition from others[4] (including their open-source software being used by competitor Bambu Lab [5][6]

Software

Prusa Research also develops its own software.

PrusaSlicer

Prusa Research software products includes the open-source PrusaSlicer (GNU Affero General Public License v3.0[12]), based on Alessandro Ranellucci's Slic3r, a well-known 3D model preparation program that is no longer being updated with new features and settings. In PrusaSlicer, profiles can be created for any 3D printer on the market, meaning that one does not need to own a Prusa printer to use the program.

Prusa EasyPrint

Prusa EasyPrint is a lightweight web-based tool for online slicing 3D models. It processes models in the cloud using the PrusaSlicer, making 3D printing easily accessible from any device. It offers basic model manipulation and print settings, specifically designed for ease of use by beginners and professionals.[13]

Prusa Connect

Prusa launched Prusa Connect. An online management system for printers and print farms. It allows to control the machine and send printjobs and files remotely. The predecessor of PrusaConnect is PrusaLink which was a LAN only based system. As of 2025 you can connect the Prusa Core One, MK4 and higher, Prusa MINI, Prusa XL, Prusa HT90, Prusa CW1S and with the help of a Raspberry Pi even the older models such as the MK2 and derivatives and the MK3 lineup. The Prusa Connect also works in collaboration with the app.[14]

Prusa App

Along with the introduction of the Prusa MK4S series, Prusa also released its native mobile app for monitoring and basic control of its PrusaConnect connected printers. It is also used for initial printer setup and belt maintenance. The app also features Printables integration and the ability to print models directly from a mobile phone with the newly introduced EasyPrint feature.[13]

Printables

Printables.com is an online library of 3D models developed by Prusa, where users can share their models, alterations to other models, called Remixes, and publish their printed results under the author's original model. It thus competes directly with platforms such as MakerWorld from Bambu Lab or Thingiverse. The EasyPrint feature is now available for Prusa printers, enabling cloud slicing for printing from mobile devices or less powerful computers.[15]

type	Private
industry	3D printing
founded	2012
founder	Josef Průša
num employees	1,000 (2024)‡R1R‡

Hardware

Original Prusa Trademark