Prusa Research

Prusa Research is a Czech technology company focused on desktop and professional 3D printing. It was founded in 2012 by Josef Průša, a developer associated with the RepRap project, a community-driven initiative that promoted accessible, self-replicating and open-source 3D-printer technology. The company became widely known for turning RepRap principles into reliable, commercially supported printers that could be assembled, repaired, modified, and upgraded by their owners. The company’s best-known product family is the Original Prusa line of fused deposition modeling printers. Important generations include the Prusa i3 family, the MK3 and MK3S series, the MK4 and MK4S, the compact Prusa MINI+, and the large-format Prusa XL. Prusa also produces CoreXY machines, including the XL and CORE One, as well as the Prusa SL1S resin printer using stereolithography technology. Its products are sold both fully assembled and as kits. Kit sales reinforce the company’s maker-oriented identity while allowing users to understand and service their machines. Many printer components are themselves manufactured through 3D printing, and Prusa operates a substantial internal printer fleet to produce parts and test hardware. For much of its history, Prusa Research emphasized open-source hardware. Printer designs, documentation, and software were made available so that users could study, adapt, repair, or build upon them. The company also used the “Original Prusa” trademark to distinguish its official products from third-party printers derived from publicly available Prusa designs. This combination of openness, community participation, upgradeability, and customer support helped establish Prusa as one of the most influential brands in consumer and prosumer 3D printing. Prusa’s business scope extends beyond printer hardware. The company develops PrusaSlicer, an open-source slicing application based on Slic3r. PrusaSlicer prepares digital models for printing and supports profiles for a broad range of machines, not only Prusa printers. The company also offers Prusa EasyPrint, a browser-based cloud slicing tool; Prusa Connect and the earlier PrusaLink system for remote printer and print-farm management; and a mobile application for monitoring, setup, and basic control of connected printers. Printables.com provides a community platform where users publish models, remixes, and print results, making the service an important part of Prusa’s ecosystem. The company’s positioning has become more complex as competition in consumer 3D printing has intensified. Competitors have adopted or benefited from open-source software and design concepts, while newer firms have promoted highly automated, enclosed, and networked printers. From 2023 onward, Prusa Research began moving away from a position in which every product was fully open source. The Prusa CORE One, introduced in 2024, represents this transition: it is a CoreXY printer that is not fully open source. The company nevertheless continues to maintain open-source software and a strong repair, upgrade, and community orientation. As of 2025, Prusa’s portfolio includes the MK4S, MINI+, XL, CORE One, and SL1S printers, multi-material accessories such as the MMU3 and INDX, professional systems developed with Trilab under the Prusa PRO name, and a connected software and model-sharing ecosystem. The brand serves hobbyists, educators, engineers, designers, small businesses, print farms, and professional users seeking an established platform with extensive documentation and upgrade paths.

Prusa Research emerged from the RepRap movement, an influential open-source 3D-printing project that encouraged experimentation, community development, and the construction of machines capable of producing many of their own parts. Josef Průša, who was involved in RepRap development, founded the company in 2012 in the Czech Republic. The business initially built on the RepRap-derived Prusa i3 design and developed a reputation for producing accessible kits and assembled machines with extensive public documentation. The Prusa i3 became a significant platform in the desktop 3D-printing community because its design could be studied and modified by users and other manufacturers. Prusa Research commercialized successive generations while retaining a close relationship with makers and open-source developers. The company’s approach combined community-accessible designs with a branded, supported product line. The “Original Prusa” name was used to identify official products and distinguish them from third-party machines based on publicly available Prusa concepts. During the 2010s, the company expanded from a small maker-oriented operation into a major international manufacturer. The MK-series printers, particularly the MK3 generation and its successors, became central products for hobbyists, educators, designers, engineers, and small production operations. Prusa supported customers with replacement parts, firmware and software updates, upgrade programs, and both kit and assembled configurations. The company also used its own printers extensively to manufacture components, validate designs, and refine production processes. Prusa Research expanded its portfolio beyond traditional Cartesian FDM printers. The Prusa MINI provided a smaller-format option, while the Prusa XL introduced a large-format CoreXY platform. The company also developed the SL1S resin printer and multi-material accessories, including the MMU3 and INDX. In parallel, it built software and online services around the hardware. PrusaSlicer, based on Slic3r, became a major open-source slicing application capable of supporting profiles for many printer brands. PrusaLink and later Prusa Connect added local and cloud-oriented control for individual machines and print farms. Printables.com became the company’s principal model-sharing platform. Users can publish original models, remixes, and photographs of completed prints. The platform places Prusa in competition with other large repositories and communities, including Thingiverse and newer manufacturer-backed services. Prusa EasyPrint extended the workflow into browser-based cloud slicing, while the Prusa App added mobile monitoring, setup assistance, maintenance functions, Printables integration, and mobile printing workflows. The company’s open-source identity came under pressure as the desktop 3D-printing market became more competitive. Other manufacturers adopted or benefited from open-source software and concepts associated with the wider RepRap ecosystem, while newer competitors emphasized automation, speed, integrated cameras, enclosed chambers, and cloud connectivity. From 2023, Prusa Research began partially moving away from its earlier practice of making every printer fully open source. The Prusa CORE One, launched in 2024, marked an important example of this change because it is not fully open source. By 2025, Prusa Research offered a broad portfolio spanning consumer, prosumer, and professional applications. Current products included the MK4S, MINI+, XL, CORE One, and SL1S, along with multi-material systems and the Prusa PRO line developed with Trilab. The company remained associated with repairability, upgradeability, community documentation, and open-source software, even as its hardware strategy incorporated more proprietary elements.

• 2025

  Portfolio includes consumer, professional, software, and community products

  [1]Prusa Researchen.wikipedia.org

  Prusa’s reported portfolio includes the MK4S, MINI+, XL, CORE One, SL1S, Prusa PRO systems, PrusaSlicer, Prusa Connect, EasyPrint, the Prusa App, and Printables.

• 2024

  Prusa CORE One launches

  [1]Prusa Researchen.wikipedia.org

  The company introduces its second CoreXY printer, the CORE One, which is not fully open source.

• 2023

  The company begins partially revising its open-source approach

  [1]Prusa Researchen.wikipedia.org

  Prusa Research begins moving away from a policy in which all of its printers were fully open source.

• 2020

  Prusa is among the world’s largest 3D-printer manufacturers

  [1]Prusa Researchen.wikipedia.org

  Prusa Research is described as the world’s second-largest 3D-printer manufacturer during 2020.

• 2012

  Prusa Research is founded

  [1]Prusa Researchen.wikipedia.org

  Josef Průša establishes Prusa Research in the Czech Republic after participating in the RepRap open-source 3D-printing project.

A maker-oriented and engineering-focused 3D-printing brand combining dependable hardware, strong documentation, repairability, upgrade paths, community participation, and open-source software. Its historic differentiation was open hardware; more recent products balance that heritage with proprietary elements and greater competition in automated desktop printing.

• FDM 3D printer

  Original Prusa MK4S

  The MK4S is a current Cartesian desktop FDM printer in Prusa’s main Original Prusa family. It follows the MK-series platform and is offered as a kit or assembled machine. The product represents Prusa’s established approach of combining documented hardware, serviceability, upgrades, and a broad user community.

• Compact FDM 3D printer

  Original Prusa MINI+

  The MINI+ is a compact Cartesian FDM printer intended for users who need a smaller machine footprint. It extends Prusa’s product range into entry-level and space-constrained use cases while retaining compatibility with the company’s software and connected services.

• Large-format CoreXY FDM 3D printer

  Prusa XL

  The Prusa XL is a large-format CoreXY printer designed for bigger parts and more demanding workflows. It is one of Prusa’s principal large-machine platforms and can be combined with multi-material capabilities, making it relevant to prototyping, education, design, and small-scale production.

• Enclosed CoreXY FDM 3D printer · 2024

  Prusa CORE One

  The CORE One is Prusa’s second CoreXY printer and was introduced in 2024. It reflects the company’s move toward a newer generation of enclosed, higher-performance desktop machines. Unlike the company’s earlier fully open-source products, the CORE One is not fully open source.

• SLA resin 3D printer

  Prusa SL1S

  The SL1S is Prusa Research’s resin-based SLA printer, complementing its larger FDM portfolio. It serves applications requiring resin printing characteristics and gives the brand a presence beyond filament-based additive manufacturing.

• Multi-material printing accessory

  MMU3

  The MMU3 is a multi-material and multicolor accessory that can be purchased separately for compatible Prusa printers. It expands the capabilities of supported machines by allowing users to work with multiple filaments in one print workflow.

• Multi-material printing accessory

  INDX

  INDX is a newer Prusa multi-material accessory intended to extend multicolor and multi-material printing capabilities. It forms part of the company’s effort to make advanced material workflows available within its printer ecosystem.

• 3D-printing software

  PrusaSlicer

  PrusaSlicer is an open-source application for preparing digital 3D models for printing. It is based on Slic3r and supports profiles for a wide range of printers, allowing people to use the software even when they do not own a Prusa machine.

• Cloud printer-management software

  Prusa Connect

  Prusa Connect is an online system for managing individual printers and print farms. It supports remote control and print-job submission for compatible machines and extends the earlier LAN-focused PrusaLink approach.

• Cloud slicing software

  Prusa EasyPrint

  Prusa EasyPrint is a browser-based tool that processes models in the cloud using PrusaSlicer technology. It provides basic model manipulation and print settings for users who want to prepare jobs from a browser or less powerful device.

• 3D-model community platform

  Printables.com

  Printables.com is Prusa’s online library and community for printable 3D models. Members can share original designs, remixes, and photographs of completed prints. Its integration with Prusa software and mobile tools makes it a central part of the company’s broader hardware ecosystem.

• Professional 3D-printing systems

  Prusa PRO

  Prusa PRO is a professional product line developed with Trilab. Reported systems include the Prusa Pro HT90, Prusa Pro SLX, and Prusa Pro Medical One, extending the company’s activities into specialized and professional additive-manufacturing applications.

• 2024

  Launch the Prusa CORE OneProduct launch

  Background

  Prusa expanded its CoreXY range as the desktop 3D-printer market increasingly emphasized speed, enclosure, automation, and competitive feature sets.

  Action taken

  The company introduced the CORE One, its second CoreXY printer and a product that is not fully open source.

  Aftermath

  The CORE One became a visible example of Prusa balancing its open-source heritage with proprietary product development and contemporary market competition.

  Source

• 2023

  Partially revise the fully open-source hardware modelStrategy

  Background

  Prusa Research faced increased competition in desktop 3D printing, including competitors using or benefiting from open-source software and related design concepts.

  Action taken

  The company began to move away from making every product fully open source while continuing to maintain open-source software and its community-oriented ecosystem.

  Aftermath

  The change became particularly visible in later hardware, including the CORE One, while Prusa retained its historic association with repairability, upgrades, documentation, and open-source development.

  Source

• 2019-10-12

  Prusa Research announces the Original Prusa Mini 3D printer[2]Prusa Research宣布推出Original Prusa Mini 3D打印机windowscentral.com

  Reported: 2019-10-12

  Prusa Research announced a new FDM printer called the Original Prusa Mini, a smaller printer designed for beginners and schools.

1. 1Prusa Researchen.wikipedia.org
2. 2Prusa Research宣布推出Original Prusa Mini 3D打印机windowscentral.com