Original Prusa MK4S 3D Printer | Original Prusa 3D printers directly from Josef Prusa

10 min read Original article ↗

Add-ons

 

MMU3

MK4S can be enhanced by an optional add-on that allows your single-extruder printer to print with up to 5 colors (materials) at the same time. Load the five colors of your choice, slice the object in PrusaSlicer, start the print, and let the MMU3 do the rest.

With all-new plastic parts, reinforced metal parts and firmware built from the ground up, the MMU3 delivers stunning multi-material prints faster and more efficiently than its competitors. With 25-35 seconds per filament change and optimized nozzle cleaning, the prints are beautifully fast and reliable, and you don’t have to worry about cleaning piles of wasted filament scraps from around your printer all the time.

The MMU3 is up to three times more efficient in managing filament waste compared to other single-nozzle multi-material systems, bringing substantial cost savings.

MMU3MMU3

The high-flow nozzle in the MK4S allows for much faster printing. However, when using the MMU3, the standard nozzle makes much more sense. Why? While the MMU3 works fine with a high-flow nozzle, the increased volumetric flow results in higher filament waste during printing. In other words, the MMU3 delivers the best performance, the same speed and the highest efficiency (lowest waste) when combined with the standard nozzle in both MK4 and MK4S.

So, if you order a standalone MMU3 for the MK4S you will receive it along with the standard nozzle. In the MK4S/MMU3 bundle, you will receive both nozzles in the package - the standard one as well as the high-flow nozzle. For assembled MK4S in a bundle with MMU3, the standard nozzle will be pre-installed on the printer as the default.

EnclosureEnclosure

Enclosure

If you want to print more advanced technical materials on your MK4S, you’ll find the Enclosure really handy. It stabilizes the printer environment, eliminates drafts and odors, and makes the printer even more silent.

An enclosure is not necessary for every type of filament. Most of common materials, such as PLA, PETG, and even some advanced ones (like PCCF) do not require an enclosure. However, once you need to print with more advanced materials, such as ASA, ABS, PC and similar, the Enclosure is the best option to achieve increased temperatures in a stabilized environment, plus, the optional high-performance filtration system will take care of ultra-fine particles.

The Original Prusa Enclosure is available with a range of useful add-ons, such as the Advanced filtration system with HEPA filter, LED strip, Mechanical Lock or Fire Suppression System. You can add these addons manually to the shopping cart. Find out more in the Enclosure Addons section on our e-shop.

Sample Prints

 

Applications

 

HouseholdsHouseholds

 

HobbiesHobbies

Hobbies

Whether you're maker, cosplayer, pop-culture fan, gamer, modeller or board-game player, MK4S can open up new possibilities for you.

On Printables.com, you can share your designs and makes with others or download 3D models for free. Join us!

 

Manufacturing

Original Prusa 3D printers are used in industries worldwide as efficient, easy-to-use, and reliable 3D printing workhorses.

Our cost-effective solution with simple maintenance is a perfect choice for everyone - from start-ups to the large international companies!

ManufacturingManufacturing

 

EducationEducation

Education

Join the tens of thousands of schools, universities, and other educational institutions worldwide that have adopted 3D printing! Explore the vast possibilities of this essential, state-of-the-art technology.

Read more case studies and examples of usage of the Original Prusa printers in education.

 

Architecture & Design

A quick and affordable way to create refined models with intricate detail. Free up the time of your skilled designers and let the 3D printers do the hard work.

Check out the videos and articles about leading designers and artists using our 3D printers in their work.

ArchitectureArchitecture

 

AutomotiveAutomotive

Automotive

Modern-day automotive industry faces many challenges - from disrupted supply chains to rapid technology development and constant changes. 3D printing brings the necessary efficiency and flexibility.

Here are examples of where our 3D printers helped with the production and prototyping in the automotive industry.

Technical Parameters

 
Measurements
Build Volume250 x 210 x 220 mm | 9.84 x 8.3 x 8.6 in
Filament diameter1.75 mm
Layer height0.05-0.30 mm
Printer dimensions (without spool)7 kg, 500×550×400 mm; 19.6×21.6×15.7 in (X×Y×Z)
Electronics
MainboardCustom 32-bit xBuddy electronics with STM32
Stepper DriversTrinamic 2130
Stepper motorsPrecise 0.9° X,Y stepper motors (prevents VFA)
Extruder
ExtruderNextruder, Direct Drive, E3D V6 compatible (with adapter)
Extruder electronicsCustom breakout board for connecting fans, thermistors and other parts.
Filament pathAluminum heatsink, all-metal hotend
Drive systemNextruder Planetary Gear System, 10:1 gearbox ratio
Cooling fanHigh-performance turbine, 360° cooling system
NozzleHigh-flow Prusa Nozzle brass CHT - 0.4 mm
Max. operating temperature
Max nozzle temperature290 °C / 554 °F
Max heatbed temperature120 °C / 248 °F
Controls
LCD screen3.5″ graphic 65k color screen
ConnectivityNFC receiver, optional ESP Wi-Fi module (delivered with the printer)
Print mediumUSB drive / LAN / internet via Prusa Connect
Sensors
Advanced sensorsFilament sensor, Loadcell sensor, Power panic, 4 high-precision thermistors (genuine Semitec) + fan motors RPM monitoring
Print surface
Print surfaceMagnetic heatbed with removable PEI spring steel sheets
Calibration
Bed calibrationAutomatic, Mesh Bed Leveling (only on print area)
Materials
Supported materialsPLA, PETG, Flex, PVA, PC, PP, CPE, PVB and when using the Original Prusa Enclosure with filtration add-on ABS, ASA, HIPS, PA
Power
PSU240W, custom made by Delta with Power Panic HW
Power consumptionPLA settings: 80W / ABS settings: 120W
 

Basic package includes:

Warranty note

Consumable parts, such as print sheets (smooth, textured, etc.), are not covered by the warranty since their coatings are expected to deteriorate over time, unless the failure is due to a defect in materials or workmanship. Cosmetic damage, which includes, but is not limited to, scratches, dents, cracks, or other aesthetic damage, is also not covered. Only sheets defective upon delivery are covered by the warranty.

The Original Prusa MK4S is recognised for its consistently reliable performance. Independent tests have confirmed its excellent print quality (crowned "The Best Printer for Quality” by CNET), accuracy, speed, and ease of use. In TechRadar words: "If you're looking for the best in print quality, reliability, and future-proofing, the Original PRUSA MK4S is a top choice."  It’s also the first consumer 3D printer to receive UL GREENGUARD Certification, meeting their strict safety standards.

Built to Last

 

We design and build the printers not just for you, but also for us! We operate a massive 700-machine 3D print farm consisting entirely of our 3D printers. They run 24/7 and produce parts for other printers. The first test our printers need to endure is our print farm. Before we launched the MK4, the testing units accumulated over 1.000.000 print hours on our farm.

Check out the extensive behind-the-scenes look at our factory!

YouTube video player

Developed & Build in the EU

The Original Prusa MK4S, like its predecessors, is designed and built in Prague, Czech Republic. We’re aiming to use as many locally sourced parts as possible. We develop and manufacture our own filaments, resins, electronics and much more - all in the heart of Europe!

Everything under one roof

   
    PrusaSlicerPrusaSlicer

    PrusaSlicer

    An open-source, feature-rich, frequently updated tool that contains everything you need to export the perfect print files for your 3D printer. All official printer and material profiles (over 180 in total) are created and tested in-house to ensure the best possible printing experience! PrusaSlicer is based on Slic3r by Alessandro Ranellucci.

    PrusamentPrusament

    Prusament

    We were not satisfied with the quality of filaments on the market, so we started manufacturing our own! Prusament offers top-class manufacturing precision, perfect color consistency and a wide range of materials from PLA to PCCF. Every Prusament material has an in-house tested profile in PrusaSlicer.

    Printables.comPrintables.com

    Printables.com

    You don’t have to be a designer to use a 3D printer! Our database of hundreds of thousands of free 3D models is just a click away. Printables.com website is actively developed, so go ahead and get amazing prints by talented creators and even official printable accessories for a variety of popular products thanks to Printables Brands.

Printer & Prusament Discount

 

prusamentsprusaments

Program for Original Prusa MK4S owners

Our discount program for the Original Prusa MK4S printer owners gives you a 10% discount on 30 selected filaments per year. Most importantly including our high-precision filament, the Prusament! Besides that, you also get a 10% discount for the next five units of assembled MK4S 3D printers.

How does it work?

To enter the discount program, you only need to purchase your first Original Prusa MK4S printer for the full price. After the printer is delivered to you, your Prusa account automatically applies the 10% discount. Make sure to be always logged into your Prusa account, to have the discount applied.

CORE One+ vs MK4S vs XL Comparison

 
 

Original Prusa MK4Original Prusa MK4

Original Prusa MK4S

Prusa CORE OnePrusa CORE One

Prusa CORE One

Original Prusa XLOriginal Prusa XL

Original Prusa XL

Build volume

250 x 210 x 220 mm |
9.84 x 8.3 x 8.6 in
250 x 220 x 270 mm |
9.8 x 8.6 x 10.6 in
360 x 360 x 360 mm |
14.17 x 14.17 x 14.17 in
FrameAluminium extrusions and frameAll-steel exoskeletonAluminium extrusions and steel sheets
Printer variantsAssembled or kitAssembled or kitAssembled or Semi-assembled
Multi Material PrintingYes, with optional Multi-material Upgrade (MMU3)Yes, with optional Multi-material Upgrade (MMU3). MMU3 for the Prusa Core ONE is now available! Explore all the possible upgrade paths..True multi-material printing with up 5 independent toolheads
ChamberNo (optional Enclosure as a separate add-on)YesNo (optional Enclosure as a separate add-on)
Chamber temperature controlNoYesNo
Max chamber temperature45 °C / 113 °F (in the Enclosure)55 °C / 131 °F45 °C / 113 °F (in the Enclosure)
Max hotend/heatbed temp.290 °C / 120 °C (554 °F / 248 °F)290 °C / 120 °C (554 °F / 248 °F)290 °C / 120 °C (554 °F / 248 °F)
Provided nozzleHigh-flow Prusa Nozzle brass CHT - 0.4 mmHigh-flow Prusa Nozzle brass CHT - 0.4 mmPrusa Nozzle brass 0.4 mm
Provided steel sheetSmooth PEISmooth PEISatin
MainboardCustom 32-bit xBuddy electronics with STM32Custom 32-bit xBuddy electronics with STM32Custom 32-bit xBuddy electronics with STM32
ExtruderNextruder, Direct Drive, E3D V6 compatible (with adapter)Nextruder, Direct Drive, E3D V6 compatible (with adapter)Nextruder, Direct Drive, E3D V6 compatible (with adapter)
Stepper motors0.9° X,Y Stepper motors0.9° X,Y Stepper motors1.8° Stepper motors
Bed heatingWhole heatbed (no matter the size of the object)Whole heatbed (no matter the size of the object)16x Individual heatbed tiles, energy-efficient when printing small objects
First layer calibrationFully automatic (thanks to the Loadcell sensor)Fully automatic (thanks to the Loadcell sensor)Fully automatic (thanks to the Loadcell sensor)
Advanced sensorsFilament sensor, Loadcell sensor, Power panic, 4 high-precision thermistors (genuine Semitec) + fan motors RPM monitoringFilament sensor (2x), Loadcell sensor, Power panic, 5 high-precision thermistors (genuine Semitec) + fan motors RPM monitoring + Door sensorFilament sensor (2x), Loadcell sensor, Power panic, 4 high-precision thermistors (genuine Semitec) + fan motors RPM monitoring
Built-in LightingDisplay RGB status barChamber light, bed RGB status bar, display RGB status barChamber light, display RGB status bar
LCD screen3.5″ graphic 65k color screen, touch control3.5″ graphic 65k color screen, touch control3.5″ graphic 65k color screen, touch control
Firmware update interfaceUSB drive, Prusa Connect, Prusa Mobile AppUSB drive, Prusa Connect, Prusa Mobile AppUSB drive, Prusa Connect, Prusa Mobile App
Remote ControlYes, via Prusa Connect and/or Prusa Mobile AppYes, via Prusa Connect and/or Prusa Mobile AppYes, via Prusa Connect and/or Prusa Mobile App
CameraOptional addon, standalone solutionOptional addon, in-chamber solutionOptional addon, standalone solution
Advanced Filtration SystemOptional addon for the EnclosureOptional addonPart of the Enclosure
GPIO BoardOptional addonOptional addonNo
AccelerometerOptional addonOptional addonYes
ConnectivityEthernet, NFC receiver, removable ESP Wi-Fi module (delivered with the printer)Ethernet, NFC receiver, removable ESP Wi-Fi module (delivered with the printer)Ethernet, NFC receiver, removable ESP Wi-Fi module (delivered with the printer)
Print mediumUSB drive / LAN / internet via Prusa Connect or mobile Prusa AppUSB drive / LAN / internet via Prusa Connect or mobile Prusa AppUSB drive / LAN / internet via Prusa Connect or mobile Prusa App
Input shaperYesYesYes
PhaseSteppingNoYesYes
Printer kit price729 USD / 819 EUR (VAT incl.)949 USD / 1049 EUR (VAT incl.)1999 USD / 2099 EUR (VAT incl.)
Assembled printer price999 USD / 1099 EUR (VAT incl.)1199 USD / 1349 EUR (VAT incl.)2499 USD / 2599 EUR (VAT incl.)
 Prusa CORE OneOriginal Prusa XL