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Original Prusa MK4 kit

Original Prusa MK4 is built around our new 32-bit connected architecture and the next-generation extruder (Nextruder). It lays down a perfect first layer every time without Live Adjust Z and it has support for high-speed printing with Input Shaper and Pressure Advance. We also improved the safety features even further. Plus, there are a ton of useful things, such as quick-swap nozzles, built-in support for remote printing and webcams, and many more. And it’s still beautifully quiet.

  • The successor to the award-winning 3D printing workhorse Original Prusa MK3
  • Effortlessly fast and silent 3D printing. Check out the sub-20 minutes Benchy video on MK4
  • Fully automatic first layer calibration thanks to the Load Cell sensor
  • Perfect first layer without hassle - no print sheets profiles, no tinkering, no Live Adjust Z!
  • Nextruder – our new extruder with a custom breakout board and smart features
  • Safety features like filament sensor and power panic that won't let you down
  • Easy maintenance, quick-swap nozzles, and removable print sheets
  • Support for a wide range of materials, incl. PLA, PETG, Flex, Nylon, ASA, PVA, PC, PP, composites and more
  • Color LCD screen with simple-to-navigate UI and quick access to all important functions
  • Ethernet and Wi-fi connection
  • Made in the EU, hassle-free warranty, 24/7 live chat support
  • Open-source

Check out the announcement article!

The next-gen extruder (Nextruder) and 32-bit connected platform provide many quality-of-life improvements like remote printing, quick-swap nozzles, and customizable UI with a one-click printing option, and much more.

The package includes a Smooth PEI print sheet.

By purchasing the MK4 Kit, you also gain a 5% discount on selected filaments.

Main Features

High-speed printing with ease

High-speed printing with ease

Thanks to our own implementation of Input Shaper and Pressure Advance technologies in the MK4’s firmware, the printer can eliminate resonance in prints and predict the flow of the filament. The result is a decrease in print time by up to 70% compared to MK3. What's more, the printer is very quiet even at these speeds - check out the sub-20-minute Benchy video

Perfect First Layer on a First Try

Perfect First Layer Out of the Box

Thanks to the precise Loadcell sensor, MK4 can lay down a perfectly smooth and consistent first layer automatically without any user input. At the beginning of a print, the printer taps the sheet with the nozzle in a grid-like pattern to measure the distance and then calculates the correct offsets. The result is a perfect first layer on every surface, without manual adjustments.

The Nextruder with Breakout Board

The Nextruder with Breakout Board

Extruder is the heart of every 3D printer. And this is a special one. On most 3D printers today, replacing extruder components is a rather complicated process. With the new connector break-out board inside the Nextruder, all of the parts, such as fans, heaters, thermistors, etc., are connected directly there. If you need to swap anything, it takes just a minute.

32-bit xBuddy Mainboard

32-bit xBuddy Mainboard

Our new xBuddy board is a 32-bit STM32-powered mainboard with many great features. It has several unique hardware-based safety protection systems, communicates with four thermistors, has all important ports (Ethernet, Wi-Fi, works with USB-A flash drives) and more. The entire board was designed, manufactured, and tested in-house.

Exceptional Print quality

Exceptional Print quality

The MK4 comes with redesigned, more robust plastic parts and new precise 0.9° stepper motors (0.9° / step; low inductance) on the X and Y axes that help eliminate Vertical Fine Artifacts on prints. Plus, there are thicker 10mm rods on the Z-axis. The result is, that prints look better than ever and even printing with “problematic” filaments like Flex is a breeze.

Color LCD screen and simple UI

Color LCD screen and simple UI

MK4’s display supports G-code thumbnails, QR codes and other elements that make using the printer so much easier. We also redesigned many of the existing menus and added a customizable footer panel. Directly under the LCD, there is an RGB status bar to signalize the current status of the printer. Next to the LCD, there’s a USB-A port for standard USB flash drives.

Quick-Swap Nozzles

Quick-Swap Nozzles

Thanks to two quick-release thumbscrews on the side of the body of Nextruder, which holds the nozzle in place, you can swap nozzles easier than ever. The MK4 is using special nozzles with an all-metal filament guide (no PTFE tubes anywhere), which improves the overall reliability of the printer. Simple Nextruder-to-V6 adapter is available.

3d model in prusaslicer

Slice with PrusaSlicer

Our internally developed multiplatform slicer comes with in-house made and fully tested profiles for all of our 3D printers and a wide range of filaments. With built-in tools, such as organic supports, cutting, automated object distribution, ironing and many others, you will turn your 3D models into print files in no time!

seven diferent color filaments next to each other

Support for a wide range of Materials

The MK4 is fully compatible with a wide range of various types of materials. No matter whether you want to print something for fun from PLA and flexible materials, or you need to produce durable prototypes from PETG, ASA, Polycarbonate and Polypropylene - the MK4 can handle them without any problem.

Prusa Connect and Connectivity Options

Prusa Connect and Connectivity Options

MK4 is, along our other 3D printers, fully supported by Prusa Connect, which allows you to control the printer via internet. You can drag-and-drop G-Codes into the browser window to upload print files first into the cloud (each user gets 1 GB for free) and then transfer it into the printer’s USB storage and start the print remotely. All communication is encrypted.

Applications

Households

What you can print with the MK4? Almost anything! Check out the inspiration and free 3D models for kitchen, living room, home decor and garden on Printables.com.

You can also browse amazing models from designers from all over the world submitted in thematic contests.


Households
 

Hobbies

Hobbies

Whether you're maker, cosplayer, pop-culture fan, gamer, modeller or board-game player, MK4 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!


Manufacturing
 

Education

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.


Architecture
 

Automotive

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

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
MainboardCustom 32-bit xBuddy electronics with STM32
Stepper DriversTrinamic 2130
Stepper motorsPrecise 0.9° X,Y stepper motors (prevents VFA)
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
Nozzle diameter

0.4mm (default) / other nozzle diameters supported

Max nozzle temperature290 °C / 554 °F
Max heatbed temperature120 °C / 248 °F
LCD screen3.5″ graphic 65k color screen
ConnectivityOptional ESP Wi-Fi module (delivered with the printer)
Print mediumUSB drive / LAN / internet via Prusa Connect
Advanced sensorsFilament sensor, Loadcell sensor, Power panic, 4 high-precision thermistors (genuine Semitec) + fan motors RPM monitoring
Print surfaceMagnetic heatbed with removable PEI spring steel sheets
Bed calibrationAutomatic, Mesh Bed Leveling (only on print area)
Supported materialsPLA, PETG, ABS, ASA, Flex, HIPS, PA, PVA, PC, PP, CPE, PVB, NGEN, composites and more
Printer dimensions (without spool)7 kg, 500×550×400 mm; 19.6×21.6×15.7 in (X×Y×Z)
PSU240W, custom made by Delta with Power Panic HW
Power consumptionPLA settings: 80W / ABS settings: 120W

* 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.

Basic package includes:

  • Original Prusa MK4 kit 3D printer
  • Double-sided Smooth PEI Print Sheet
  • Free sample of Prusament PLA ~ 2x25 g
  • 3D Printing Handbook
  • USB drive with sample prints (G-codes)
  • Toolset: Uni-wrench, 13-16 wrench, Philips screwdriver, Nose pliers, Allen and torx keys
  • Alcohol-saturated wipes, acupuncture needle
  • Spoolholder
  • Spare parts package
  • Prusa lubricant for bearings
  • A pack of Haribo gummy bears
  • Manufacturing protocol

Add-ons

Ready for multi-color printing with MMU3

MK4 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. The MMU3 contains five filament insertion points. Load the five colors of your choice, slice the object with MMU3 profile in PrusaSlicer and start the print. The system automatically selects filament using the selector, loads it into the Nextruder and the MK4 starts printing. When it’s time to change the color or material, it also happens automatically.

The MMU3 is the latest edition of Multi Material printing device by Prusa Research. The firmware has been rewritten completely, we have redesigned the plastic parts, added more robust metal parts, improved the electronics and updated the filament buffer. All of these changes have improved the reliability and user comfort to levels where MMU has never been before.

MMU3


Enclosure

Enclosure available

MK4 is *fully compatible with the Original Prusa Enclosure. If you want to print more advanced technical materials on your MK4, you’ll find the Enclosure really handy. It stabilizes the printer environment, eliminates drafts and odors, and makes the printer even more silent.

The Enclosure is available with a range of useful add-ons, such as a filtration system, locking mechanism and more - check out the announcement article and the Enclosure section on our e-shop.

Sample Prints

MK4 sample print
MK4 sample print
MK4 sample print
MK4 sample print
MK4 sample print
MK4 sample print
MK4 sample print
MK4 sample print
MK4 sample print

6 reasons to buy the MK4

1

Great User Support

We offer 24/7 tech support via live chat and email in seven languages. Our printers come with detailed instructions and guides for easy assembly and maintenance. You can also visit our knowledge base, community forum, Facebook groups and official Blog, where we publish useful 3D printing tips and tricks, contests and more!

2

Fun to Assemble

The MK4 assembly kit is an excellent first step into the world of 3D printing. You will get to know your 3D printer inside out and find out how it works! The assembly is quite easy, requires no soldering, all cables are cut to length and ready to be plugged in. The assembly instructions are easy to follow and all of this makes the kit very friendly to younger builders, too!

3

Built-in Safety Features

Original Prusa 3D printers are well-known for their reliability and safe operation. Every part of our printers is thoroughly tested in-house. The MK4 is equipped with four thermistors and comes with a custom-built high-quality Delta power supply. The printer can recognize issues with heating and stop operation to prevent damage.

4

Open-source and Community Friendly

All parts of our printer are open-source, which means we publish all source codes and blueprints online. The community around our products is huge and the feedback is overwhelmingly positive - don't believe us? Check out Facebook groups and YouTube videos! There's so much to do with your 3D printer - buying it is just the beginning!

5

Quality Guaranteed by Josef Prusa & Prusa Research

Prusa Research is a 3D printing company based in Prague, Czech Republic. It was founded in 2012 by Josef Prusa, one of the core RepRap developers, as a one-man startup and grows to a 700+ team now. We develop our own hardware and software, invent, improve, tinker, experiment and do all sorts of awesome stuff. Read more on this page.

6

Upgradability

One of the most popular features of the Original Prusa concept is upgradability. When you buy our 3D printer, you can upgrade it later to a newer version, so you don't need to buy a whole new model every two years like, for example, your phone or laptop. We also keep supporting our 3D printers with regular firmware updates that bring new features!

Printed Solid

Service and Repair Center for USA

 
Printed SOLID Logo

Printed Solid Service Center USA: I would also like to share that we have created a new Repair Center at our subsidiary branch - Printed Solid to accelerate the repair of our Original Prusa Printers within the USA. Please take a look at our Knowledge Base in detail.

 

Discount program for Original Prusa MK4 kit owners

Our discount program for the Original Prusa MK4 kit printer owners gives you a 5% discount on 30 selected filaments per year. Most importantly including our high-precision filament, the Prusament!

How does it work?

To enter the discount program, you only need to purchase your first Original Prusa MK4 kit printer for the full price. After the printer kit is delivered to you, your Prusa account automatically applies the 5% discount. Make sure to be always logged into your Prusa account, to have the discount applied.

MK4 vs MK3S+ vs MINI+ Comparison

 Original Prusa MK4 Original Prusa MK4Original Prusa i3 MK3S+ photo Original Prusa i3 MK3S+Original Prusa MINI+ Original Prusa MINI+

Build volume

250 x 210 x 220 mm | 9.84 x 8.3 x 8.6 in250 x 210 x 210 mm | 9.84 x 8.3 x 8.3 in180 x 180 x 180 mm | 7 x 7 x 7 in

Max hotend/heatbed temp.

290 °C / 120 °C (554 °F / 248 °F)

290 °C / 120 °C (554 °F / 248 °F)

280 °C / 100 °C (536 °F / 212 °F)

MainboardCustom 32-bit xBuddy electronics with STM32

Einsy RAMBo 8-bit board

Custom 32-bit Buddy electronics with STM32

Stepper DriversTrinamic 2130Trinamic 2130Trinamic 2209
Stepper motorsPrecise 0.9° X,Y stepper motors (prevents VFA)Regular 1.8° X,Y stepper motorsRegular 1.8° X,Y stepper motors
MMU3 support

Yes

Yes

No

Extruder electronicsCustom breakout board for connecting fans, thermistors and other parts.

No

No

Filament path

Aluminum heatsink, all-metal hotend

Aluminum heatsink, all-metal hotend

Aluminum heatsink, all-metal hotend

Drive systemNextruder Planetary Gear System, 10:1 gearbox ratio

Direct drive

Bowden system with 3:1 gearing

First layer calibrationFully automatic (thanks to the Load Cell sensor)Manual adjust ZManual adjust Z
Quick-Swap nozzle system

Yes

No

No

LCD screen3.5″ graphic 65k color screen

Monochromatic LCD

2.8″ graphic 65k color screen

Bed calibrationAutomatic, Mesh Bed Leveling (only on print area)

Automatic, Mesh Bed Leveling

Automatic, Mesh Bed Leveling

One-click Printing

Yes

No

Yes

Status LEDs

Yes

No

No

Input shaper

Yes

No

Yes

Filament SensorYes (built-in Hall sensor)

Yes (IR)

Optional upgrade

Loadcell sensor

Yes

No

No

Advanced sensorsFilament sensor, Loadcell sensor, Power panic, 4 high-precision thermistors (genuine Semitec) + fan motors RPM monitoring

3 thermistors + SuperPINDA, fan RPM sensors

3 thermistors + SuperPINDA, fan RPM sensors

Power panic

Yes

Yes

No

Ethernet connection

Yes

Via Raspberry Pi

Yes

Wi-Fi connection

Optional ESP Wi-Fi module (delivered with the printer)

Via Raspberry Pi

Separate upgrade ESP Wi-Fi module

Prusa LinkIntegrated

Via Raspberry Pi

Integrated
Print mediumUSB drive / LAN / internet via Prusa ConnectSD card (LAN / internet via Raspberry Pi)USB drive / LAN / internet via Prusa Connect

Firmware update interface

USB driveUSB port via PCUSB drive

Kit price

799 USD / 889 EUR (VAT incl.)649 USD / 719 EUR (VAT incl.)429 USD / 459 EUR (VAT incl.)

Assembled printer price

1099 USD / 1199 EUR (VAT incl.)899 USD / 999 EUR (VAT incl.)459 USD / 489 EUR (VAT incl.)

The MK4 is the latest edition of our flagship 3D printing workhorse. It combines the reliability and safety features of its predecessors with high-speed performance enabled by Input Shaper support. It brings plenty of new features like a perfect smooth first layer thanks to the Loadcell sensor (no manual adjustments needed).


    Online Assembly Manual, Power Cable (US), Handbook (EN) (change)

    In stock

    Preparation time: 1-3 business days.

    $799
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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

      Upgradability

      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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