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Original Prusa i3 MK3 3D printer

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The Original Prusa I3 MK3 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 powder coated PEI spring steel print sheet we believe that we've developed our best 3D printer yet!  

This is a fully assembled printer. If you're looking for DIY KIT, you can find it here.

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JUST ANNOUNCED! PREORDER! We expect to start shipping in November!

$999.00

  No tax

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The Original Prusa I3 MK3 is the successor of the award-winning Original Prusa i3 MK2 3D printer. Our previous model is the winner of "3D PRINTER SHOOTOUT 2017" in prestigious MAKE: Magazine and for almost a year it's the best 3D printer according to 3Dhubs.com. But the new MK3 is even better! With the rebuilt extruder, a plethora of sensors and the new magnetic MK52 heatbed with replaceable powder coated PEI spring steel print sheet we believe that we've developed our best 3D printer ever!

WHAT WE ARE PROUD OF...

The most significant new features of Original Prusa i3 MK3

FILAMENT SENSOR

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Our optical filament encoder detects not only the presence of a filament but also its movement. This means we can recognize running out of the filament, pause the print and ask the user to insert a new spool. We can also detect stuck filament and offer the user a cold pull to clean the nozzle and continue the print.

THERMISTORS

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MK3 has two new thermistors. The first one is measuring ambient temperature on the electronics and helps us to detect board or connector failures. The second one is embedded in the P.I.N.D.A. 2 probe, and it allows us to compensate temperature drift, so the first layer will always be spot on!

POWER PANIC

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Did you ever accidentally tripped over your extension cord and lost a 20-hour print? MK3 will save you! The printer can fully recover from the loss of power. A special sensor detects power interruption and immediately shuts down the heatbed and extruder heating.

NOCTUA FAN

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To increase the reliability of the printer, we have added sensors to the cooling fans. In the case of an extruder cooling getting stuck with a piece of filament, both fans can now measure RPMs and notify a user about the problem. And one more thing - the nozzle cooling fan is now made by Noctua and it's super silent!

EINSY RAMBO

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We co-developed the new EINSY (named after Einstein) RAMBo motherboard together with Ultimachine, and we believe, it is the most advanced 3D printer board out there. It still has many tricks up its sleeve. A neat trick is the monitoring of power. This enables us to detect blown fuses.

TRINAMIC DRIVERS

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Trinamic2130 drivers with 256 microstepping are extremely quiet. At least in silent mode. In normal mode, which is still quieter than 99% of the available printers, they can also detect lost steps. This has significant implications. The printer can detect shifted layers, rehome and continue the print without a problem!

NEW Y-AXIS

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The most requested feature was an improved frame rigidity. We are now introducing the reworked Y axis from aluminum extrusion. It provides the same rigidity as some other printers while providing the sleek look of our milled Dural frame. The frame is also optimized to add 10 mm of Z height totaling at 210 mm.

MAGNETIC PEI SHEET

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The new MK52 Magnetic HeatBed has embedded high curie temperature magnets inside. These hold replaceable alloy spring steel sheets powder coated with PEI. PEI is directly on metal, so when you crash the nozzle into it, metal can dissipate the heat and prevent the surface damage.

BONDTECH EXTRUDER

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The extruder is now upgraded to a genuine Bondtech drive gear. It grips the filament from both sides, increasing the push force of the filament and making it more reliable, especially for flexible filaments. When we are at the extruder, the print cooling fan now cools part from two sides, increasing the overhang performance.

Read more about features of our brand new Original Prusa i3 MK3 in the article at PrusaPrinters.org


Check out the official announcement video!


THE INTERNET ABOUT MK3

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MK3 receives two editor's Choice ribbons at World Maker Faire 2017 in New York. Thank you!

"This machine really excited the team with how incredible it was." - more info

MAKE: Magazine

"This is a true successor to the Original Prusa i3 MK2 released just 18 months ago." - more info

ALL3DP.com

Prusa Introduces New Original Prusa i3 MK3 3D Printer with Lots of New Features - more info

3Dprint.com


SEE THE MK3 IN ACTION!

MK3 interview with Josef by Thomas Sanladerer

MK3 interview with Josef by 3D printing nerd

Josef's improvised presentation of MK3 features

EINSY RAMBO interview with Josef


FULL FEATURES LIST

NEW FEATURES

BASIC FEATURES

  • Magnetic PEI powder coat spring steel sheet
  • Brand new EINSY RAMBo motherboard
  • Silent Trinamic drivers with 256 microstepping
  • Faster printing: 200+ mm/s
  • Sensorless homing for X and Y axes
  • Detection and recovery of shifted layers
  • Improved frame rigidity with aluminium extrusions
  • Power loss detection and recovery
  • Better cooling from both sides of the object
  • Optional WIFI with Octoprint interface included
  • Bondtech extruder drive - filament is driven from both sides
  • Optical filament flow sensor with filament presence and movement detection
  • Automatic loading of filament when filament is inserted
  • Detection of jammed extruder with pause print
  • Both extruder cooling fan and print cooling fan detect RPM. When extruder fan is blocked, printer will stop to prevent damage of extruder. Same applies for the print cooling fan.
  • Extra silent Noctua fan
  • New P.I.N.D.A. 2 probe with included thermistor - faster temperature calibration
  • Room ambient temperature sensor
  • Great build volume11.025 cm3 (25 x 21 x 21 cm or 9,84 x 8,3 x 8,3 in)
  • Integrated LCD and SD card controller (8GB included)
  • 0,4mm nozzle (easily changeable) for 1,75 mm filament
  • Layer height from 0,05 mm
  • Automatic mesh bed levelling
  • Heatbed with cold corners compensation – for warpless 3D printing from any material
  • Automatic skew axes compensation
  • Hassle free PEI print surface - no glass, no glue, no ABS juice
  • Supported materials – PLA, ABS, PET, HIPS, Flex PP, Ninjaflex, Laywood, Laybrick, Nylon, Bamboofill, Bronzefill, ASA, T-Glase, Carbon-fibers enhanced filaments, Polycarbonates...
  • Easy multicolor printing based on layer height
  • 1 kg (2 lbs) silver PLA filament included

Data sheet

3D printers MK3

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Original Prusa i3 MK3 3D printer

Original Prusa i3 MK3 3D printer

The Original Prusa I3 MK3 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 powder coated PEI spring steel print sheet we believe that we've developed our best 3D printer yet!  

This is a fully assembled printer. If you're looking for DIY KIT, you can find it here.