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Original Prusa Enclosure

If you chose the option with the LED Strip and/or  Advanced Filtration System we will automatically add the needed PSU for $37.99 (already included).
The PSU can power both  Advanced Filtration System and LED Strip at once so only one PSU will be added.
All add-ons are also separately available for purchase here.

Original Prusa Enclosure is an accessory for your 3D printer that houses your Original Prusa i3 MK3S+ or MK4 and provides a stable printing environment. The Enclosure helps to reduce odors from certain materials, lowers noise, can be equipped with useful addons for increased safety and/or the possibility to run the printer in public spaces and helps with printing advanced materials due to the passive heat coming from the heatbed (prevents warping). There is enough headroom above the printer inside the enclosure to mount the MMU2S unit.

Everything is included in the package, including plastic parts, so you don’t need to print anything on your own. The only exceptions are the optional LCD supports and handles (seen in some photos) and the silver PSU retainer. In case you would like to mount the display outside of the enclosure, you can simply print the LCD supports at any time. Assembly instructions are available online. A 3D printer is not a part of the package.

Main Features

original prusa enclosure fro the rear

High-Quality Components

The frame along with the top and bottom panels are made from metal, the side panels are made from PETG plastic. The solid robust design allows several enclosures to be stacked on top of each other and secured using screws. The frame features mounting elements for the installation of various add-ons and tidy cable management.

MK3S+ inside Prusa enclosure

Print Advanced Materials

The enclosure creates a stable printing environment with increased temperatures, shields the printer from drafts and blasts of cold air and reduces the build-up of dust on moving parts. This is perfect for printing demanding high-temperature materials which are otherwise prone to warping - such as PC CF, Nylon, PP and more.

enclosure loscking meachanism

Safety Features

Install an optional lock to prevent unauthorized access to your 3D printer - ideal solution for schools, hackerspaces and other public places. An optional filtration system (HEPA filter, 99.9% efficiency) prevents the spread of ultra-fine particles (UFPS).

enclosure mounting points

Upgradable and Expandable

The enclosure can be further upgraded and expanded with official add-ons (both paid and free) and it is also ready for your DIY projects. You can design your own brackets, holders and other accessories to tailor the enclosure exactly for your needs. A dedicated section will be available at after release.


Technical Parameters

  • Dimensions with the LCD mounted outside: 530 mm (w) × 545 mm (h) × 715 mm (d)
  • Dimensions with the LCD inside: 530 mm (w) × 545 mm (h) × 640 mm (d) At least 250 mm is required in front of the enclosure for the doors to fully open
  • Enclosure type: Passive, heating provided only by the 3D printer’s heatbed
  • Weight: 10,6 kg (23.4 lbs)
  • Max stackable units: up to 5 (with more than 3 enclosures, anchoring to a wall is recommended)
  • The basic package contains: All components required to build the enclosure (frame parts, transparent side panels, top and bottom panels, mounting material, printer frame brace), temperature sensor, and documentation. Handles and optional 3D-printed accessories seen in some photos are not included in the package.
picture of original prusa enclosure dimensions

ADD-ONS (Currently offered)

advanced filtration system of the prusa enclosure

Advanced Filtration System

The filtration system is useful when you print materials such as PC Blend Carbon Fiber and other materials that produce particles during printing. The filtration system will be also compatible with the “Smart Box” electronics, one of the future add-ons. Please note that enclosures with the Filtration System have extended lead times!

white LED iluminating mk3s+ in enclosure while printing

White LED Strip

You can install an optional white LED strip into the enclosure to light up your 3D printer. The strip is powered by a separate PSU which will be added to your order automatically. The LED strip is programmable, however, this functionality will become available only after the release of the Smart Box add-on.

closeup of enclosure lock and key

Mechanical Lock

A standard mechanical lock that fits in the door of the enclosure, so you can keep your 3D printer safely locked. A perfect option for schools, universities, hackerspaces and other institutions and businesses. This lock uses a standard key. However, we're also working on an electrical lock paired with an RFID reader.

blaze cut fire suppression system mounted inside the enclosure

BlazeCut Fire Suppression System

A self-contained tube-style fire suppression system. The system is manufactured in Europe and uses an extremely effective, clean, and safe extinguishing medium. The system operates automatically and independently of any power supply by detecting higher temperatures. Please note, that due to the shipping restrictions and costs, delivery from Prusa is available only to addresses within the EU. For the US customers it's recommended to order from our partner Printed Solid. Other countries please find your dealer here.

PSU cable quick release being conected

PSU Cable Quick-release

The enclosure is designed to allow easy removal of the printer together with the PSU. However, if you plan to remove the printer more often, you can purchase this cable quick-release connector and remove only the printer. Please note that only black PSUs from Delta are supported. If you have the silver PSU, you have to upgrade it first.

3d printed tool holder conected to the enclosure via mountingpoints


The enclosure is designed to be further extended with additional printed parts, electronics, cameras, and more. A number of useful 3D printed accessories can be found at

Future ADD-ONS

The following addons will be released later this year. We will share more details once they are closer to release.

Smart Box

Optional electronics that serve as an interface between the MK3S+ and various add-ons, mainly the advanced filtration system. The Smart Box will allow communication with various additional equipment, such as advanced thermal sensors, RGB LEDs, humidity meters, a microparticle sensor and also an electronic lock. All the devices can work together, so, for example, when the printer finishes a job, the RGB LEDs will signal the print is done. However, the door will remain locked and the advanced filtration system will increase the power to maximum RPM to clean the air in the chamber quickly. Once the sensors detect the conditions are optimal, the electronic lock is automatically released.

We’re currently preparing the following add-ons:

  • Smart RGB LEDs
  • Electronic lock
  • RFID reader
  • Advanced temperature sensors
  • Humidity sensor
  • Microparticle sensor

Introducing Original Prusa Enclosure: Modular box for your 3D printer.

Enclosures mainly help with stabilizing the inner environment and raising ambient temperatures, which is vital for printing materials such as ASA, PC-CF, PP, and others that have a tendency to warp. We also prepared a handful of add-ons that cater to any of your specific needs.

The Original Prusa Enclosure is shipped disassembled as a kit.

            Estimated leadtime 1 week
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            Why the Original Prusa 3D Printer?

            • 1

              Great Support

              We are providing full 24/7 customer support with live chat and e-mail in several languages.

            • 2


              If you buy our 3D printer, you can upgrade it later to the new version, no need to buy a new model.

            • 3

              Ready to print settings

              In PrusaSlicer you can set everything you want. It's very easy to use and gets new features regularly.

            • 4

              Best Assembly instructions

              Pictured to the smallest detail with all fasteners and mechanical parts having 1:1 drawing.

            • 5

              Fun to Assemble

              Assembling the kit is an excellent first step to the world of 3D printing. Get fun and knowledge!

            • 6

              Quality Garanteed by Josef Prusa

              We operate 700+ printers running 24/7. We need high-quality for our own use – and we design our machines to meet these criteria.



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