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Original Prusa i3 MK3S + kit
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Original Prusa i3 MK3S + kit

Original Prusa i3 MK3S + kit

By Prusa  Ref: PRU001

The Original Prusa I3 MK3S + is the successor of the award-winning Original Prusa i3 MK2 3D printer. With the rebuilt extruder, a plethora of sensors and the new magnetic

MK52 heatbed with replaceable PEI spring steel print sheet


The Original Prusa i3 MK3S+ is the latest version of our award-winning 3D printers. We have upgraded the MK3S with a brand new SuperPINDA probe for improved first layer calibration, added high-quality

Misumi bearings and various useful design tweaks to make the printer easier to assemble and maintain. The MK3S+ includes all the proven features of the previous models,

including the heatbed with removable PEI spring steel print sheets, automatic Mesh Bed Leveling, filament sensor, power loss recovery (power panic) and safety features.

And it is still as silent as ever!

The MK3S+ is available as an assembly kit, which is the best way to get to know your new 3D printer. Assemble it screw by screw to learn truly everything about its design and how it works!

You can also get it fully assembled and factory tested, so all you need to do is to unpack it and plug it in.

Thanks to all of these (and many other) features, the MK3S became the “Best 3D Printer” according to ALL3DP. The MK3S is also the highest-rated3D printer, and the “Editor’s Choice”, in the

prestigious MAKE:MAGAZINE’s Digital Fabrication Guide 2019. The MK3S is also featured in TechRadar's Best 3D printers of 2021 as The best all-around 3D printer.NY Times wrote that "...of

the 11 printers we’ve tested over the past five years, the Prusa i3 MK3S printer has produced the largest and best-looking prints." According to ZDNet, the MK3S is "The best pro-sumer

3D printer under 1000 USD."

The functionality of the MK3S+ can be further enhanced by our unique Multi-Material Upgrade 2S for printing with up to 5 filaments simultaneously.


  • Removable magnetic spring steel sheet with PEI surface(*)
  • Brand newEINSY RAMBomotherboard
  • SilentTrinamic driverswith 256 microstepping
  • Maximum travel speed up to200 mm/s
  • Sensorless homing for X and Y axes
  • Detection andrecovery of shifted layers
  • Improved frame rigiditywithaluminumextrusions
  • Power loss detection and recovery
  • Better cooling from both sides of the object
  • Optional WIFI withOctoprint interface
  • Bondtech extruder drive- filament is driven from both sides
  • IR filament sensor
  • Automatic loading offilamentwhenfilamentis inserted
  • Both extruder cooling fan and print cooling fandetect RPM. When extruder fan is blocked,

the printer will stop to prevent damage of extruder. The same applies for the print cooling fan.

  • Extra silentNoctua fan
  • New P.I.N.D.A. 2 probe withincluded thermistor- faster temperature calibration

* Consumable parts, such as PEI sheets (smooth, textured, etc.) are not covered by warranty as the

coatings are designed to diminish over time unless failure has occurred due to a defect in materials or workmanship.

Cosmetic damage, including but not limited to scratches, dents, cracks or other cosmetic damage is also not covered by the warranty.

Only defective sheets on arrival are covered by warranty.


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Spring steel sheets are easy to maintain and make removing the printed object from the print surface a breeze. We offer three types of print surface: smooth, textured and satin to cover all your needs when printing from a wide range of different materials - most of which do not require any special separation layers or surface preparation.


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The MK3S+ features an aluminum extrusion Y-axis assembly. Thanks to the milled dural frame, the MK3S+ is stable, rigid, and easy to assemble. Combined with our internally developed extruder featuring Bondtech gears and the E3D V6 hotend, the MK3S+ can print high-quality objects up to 210 mm in height.


Thanks to the SuperPINDA probe, the MK3S+ can use the Mesh Bed Leveling process to compensate for microscopic imperfections of the print sheet, and inconsistencies caused by the assembly and stacking of the manufacturing tolerances of various parts. Achieving a great-looking first layer is quick and easy.


Are you afraid of a blackout ruining your 48-hour print? Worry no more - the MK3S+ can deal with that! The printer can fully recover from the loss of power and continue printing exactly where it left off. It detects power interruptions and shuts down the heatbed and extruder heating, and saves the last known location.


The MK3S+ further enhances the reworked extruder from the MK3S. The built-in filament sensor uses a reliable trigger system, which detects whether a strand of filament is inserted into the extruder. It can detect any type and color of filament and is not susceptible to mechanical wear.


Thanks to the Trinamic 2130 drivers and super silent fan, the MK3S+ supports the stealth printing mode, which makes the printer extremely quiet. Even in the normal printing mode, the MK3S+ is quieter than most 3D printers on the market. In the normal mode, the MK3S+ can achieve a print speed of more than 200 mm/s!


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 advanced support generation, cutting, automated object distribution, ironing and many others, you will turn your 3D models into print files in no time!


The MK3S+ 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 MK3S+ can handle them with ease.


We develop firmware for all of our 3D printers and test every new version thoroughly before release. Ongoing development and regular updates ensure that our machines are packed with useful features, such as print sheet profiles, automated calibration, Mesh bed leveling,


    • Build volume: 25×21×21 cm (9.84"×8.3"×8.3")
    • Layer height: 0.05 - 0.35 mm
    • Nozzle: 0.4mm default, wide range of other diameters/nozzles supported
    • Filament diameter: 1.75 mm
    • Supported materials: Wide range of thermoplastics, including PLA, PETG, ASA, ABS, PC (Polycarbonate), CPE, PVA/BVOH, HIPS, PP (Polypropylene), Flex, nGen, Nylon, Carbon filled, Woodfill and other filled materials.
    • Max travel speed: 200+ mm/s
    • Max nozzle temperature: 300 °C / 572 °F
    • Max heatbed temperature: 120 °C / 248 °F
    • Extruder: Direct Drive, Bondtech gears, E3D V6 hotend
    • Print surface: Removable magnetic steel sheets with different surface finishes, heatbed with cold corners compensation
    • Safety features: IR filament sensor, high-quality Delta PSU with Power Panic, 3 thermistors, RPM monitoring
    • LCD Screen: Monochromatic LCD


      • Controller: EINSY RAMBo 8-bit board with Trinamic 2130 drivers (256 microstepping), co-developed with Ultimachine, sensorless homing for X and Y axes
      • Mesh Bed Leveling: Advanced high-quality SuperPINDA sensor (Super Prusa INDuction Autoleveling sensor)
      • Print sheet profiles: Firmware supports print sheet profiles to store Live Z calibration data to enable quick switching between different print sheets.
      • Filament sensor: IR sensor built-in, supports filament auto-loading. Print pauses when filament runs out.
      • Power Panic: Hardware-based, single G-code line accuracy
      • Ethernet connection: via Raspberry Pi (optional)
      • Wi-Fi connection: via Raspberry Pi (optional)
      • Advanced sensors: 3 thermistors, fans RPM monitoring, SuperPINDA
      • Calibration: Automatic, Mesh Bed Leveling, SelfTest
      • Print medium: SD card (16 GB card included)
      • Firmware update: via PC (USB cable)
      • PSU: Custom-made Delta PSU with hardware-based power panic
      • Advanced features: Automatic filament loading, steel sheet profiles, Octoprint compatibility and more
      • New features introduced through firmware upgrades