The Original Prusa i3 MK3S is the "Best 3D printer" according to All3DP.com and MAKE: Magazine, where MK3S also received "Editor's Choice" as the highest-rated 3D printer in 2019 Digital Fabrication Guide. The MK3S features a rebuilt extruder, numerous sensors, and various smart features. Plus, a new magnetic MK52 heatbed with replaceable PEI spring steel print sheet. Dozens of various tweaks and upgrades improve the reliability and ease of use. MK3S‘s functionality can be further expended with the unique Multi-Material Upgrade 2S addon for printing with up to 5 materials simultaneously.
WHAT WE ARE PROUD OF...
The most significant new features of Original Prusa i3 MK3S
The new MK52 Magnetic HeatBed holds a replaceable alloy spring steel sheet with a PEI surface. You can choose between two types of sheets - smooth PEI sheet (default option, already available) and textured powder coated PEI (this will be available later).
With the MK3S we are 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.
SILENT & FASTER PRINTING
Thanks to the new Trinamic2130 drivers and Noctua fan, the MK3S is extremely quiet in the stealth mode. But the MK3S is quieter than 99 % of the available printers, even in the Normal mode. In normal mode, we have also increased the printing speed. Now you can achieve more than 200 mm/s!
Have you ever tripped over the extension cord and lost a 20-hours print? MK3S will save you! The printer can fully recover from the loss of power. It detects power interruption and shuts down the heatbed and extruder heating. After restoring the power, you can continue with printing.
With MK3S we are introducing a completely reworked extruder with a new filament sensor. The new sensor is using the optical sensor which is triggered by a simple mechanical lever. This sensor doesn’t care about the optical properties of the filament (it can be completely invisible) and cannot die because of mechanical wear.
RECOVER SHIFTED LAYERS
The new EINSY RAMBo motherboard with Trinamic drivers not only makes the MK3S silent but it also can detect skipped steps and layer shifting. This is a big step forward in the reliability of the printer and the user comfort. You can say goodbye to ugly prints!
The extruder has now upgraded with Bondtech drive gear. It grips the filament from both sides, increasing the push force and making the printer more reliable. This is useful especiallyfor flexible filaments. Also, the print fan now cools part from two sides, increasing the overall performance.
P.I.N.D.A. 2 PROBE
MK3S has two new thermistors. The first one measures ambient temperature on the electronics, preventing MINTEMP errors in rooms with 15°C or less. The second one is embedded in the new P.I.N.D.A. 2 probe to compensate for temperature drift. So the first layer will always be spot on!
E3D V6 NOZZLE
E3D V6 is market-leading all metal hotend well known for its high-temperature performance. The MK3S utilizes a custom heatbreak developed together with E3D. The reliability has proved in our Multi Material upgrade and continues to deliver great performance in surprisingly small form factor.
Read more about features of our brand new Original Prusa i3 MK3S in the article at PrusaPrinters.org
Check out the official announcement video!
THE INTERNET ABOUT MK3/S
"MK3 - highly recommended. I'm really looking forward to everything this printer does becoming standard everywhere." - more infoThomas Sanladerer
"In short. What I don't like about this printer? The rubber feet. What I like? Absolutely everything else!" - more info3D Maker Noob
"With it's combination of useful new features, along with the reliability and quality of the prints, this is a 3D printer that, especially in the kit form, offers a great price-performance ratio." - more infoGreatScott!
"Using this 3D printer has been a joy and an education. (...) The Original Prusa i3 MK3 is highly, thoroughly, and unreservedly recommended." - more infoALL3DP.com
SEE THE MK3/S 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 (FEBRUARY 2019 EDITION)
- Removable magnetic spring steel sheet with PEI surface
- 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
- IR filament sensor
- 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, the 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 volume – 11,025 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
- Kit box dimensions: 11 kg, 42×43×24 cm; 16.5×16.9×9.5 in (L×H×W)
- Printer dimensions (without spool): 7 kg, 50×55×40 cm; 19.6×21.6×15.7 in (L×H×W)
- Power consumption: PLA settings: 80W / ABS settings: 120W
WHY DO YOU WANT ORIGINAL PRUSA I3 KIT?
We are an established company founded in 2012, and we work hard to help you start 3D printing as soon as possible. We are providing full 24/7 customer support with live chat and e-mail in several languages. There are also unofficial user groups on Facebook, where makers help each other. You will never be alone in the big world of 3D printing!
The kit comes along with a forum support where our ever growing community can always help, or you can even get in touch with Jo Prusa himself at the very same spot! Check out the forum and regularly updated Knowledge Base!
With 3D printing, buying a printer is just a beginning!
Fun to assemble
Assembling the kit is an excellent first step to the world of 3D printing. You will understand the principles of printer construction and get a huge advantage when you need to solve possible problems and replacements later.
But don't worry. Assembling is quite easy! You don't have to solder at all to build our kit. You don't even have to own a soldering iron. All our cables are cut to length and with professionally crimped connectors. And from the electronics standpoint, the hardest thing will be plugging the connectors to the motherboard.
All of this makes the kit very friendly to younger builders :-)
Best assembly instructions and free 3D Printing handbook
We didn't want to leave anything to chance, so our assembly instructions are pictured to the smallest detail.
All fasteners and mechanical parts have 1:1 drawing so you can easily find them, and there is no chance of you picking a wrong one. You don't have to be MIT graduate to assemble our kit ;-)
Our fastest customer built the kit in 4 hours! Will you beat him?
Ready to print settings
We provide high print settings with the printer, so you don't have to dive into complex new programs the second you finish the build. You can start printing right away, and this gives you a great head start!
These settings are great for all kinds of objects, not just for a couple of prepared showpieces. After a while, when you're familiar with the printer, you can, of course, dive into tinkering ;-)
We are developing our own slicing software. In Slic3r Prusa Edition you can set everything you want. PrusaControl on the other side is focusing on casual users, and it's very easy to use. But of course, we also have the settings for the third party slicers like Simplify3D, Cura, etc.
One of the most popular features of Original Prusa i3 concept is upgradability. If you buy our 3D printer, you can upgrade it later to the new version, so you don't need to buy the whole new model every two years as you get used to for example with your phone or laptop. :-)
Upgrades are a great way not only for saving money, but also to learn about the construction of the printer's hardware. We are constantly improving our technology. A few years ago there was the Original Prusa i3 3mm which was upgradable to the Original Prusa i3 Plus 1.75mm (MK1). This printer can become MK2S thanks to the next big upgrade and then you can go even for the latest MK3S (or MK2.5S if you wish).
Ready for the Multi Material Upgrade 2S
Original Prusa i3 MK3S Multi Material 2S is the unique consumer option to print with up to 5 different materials simultaneously. MMU2S comes with a redesigned body and a new filament loading mechanism. Instead of the previous Bowden system. The motorized selector head has a F.I.N.D.A filament sensor and a built-in blade, which prevents filament jamming.
Multi-material could be your next step in the 3D printing world and MK3S is completely ready for the upgrade.
BTW: Do you know, that you can easily print soluble interface supports with Multi Material upgrade? We have a pretty smart solution for you - check out the video!
Quality guaranteed by Josef Prusa & Prusa Research
Prusa Research is a 3D printing company based in Prague, Czech Republic. It was founded by Josef Prusa, one of the core developers of the Open Source project RepRap, in 2012 as a one-man startup and grows to a 160+ team now.
The open-sourced Prusa i3 design is according to 3DHubs the most used 3D printer in the world.
Today we are shipping more than 6000 Original Prusa i3 printers per month to over 120 countries directly from Prague.