Original Prusa i3 MK3S+ kit

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 we believe that we've developed our best 3D printer yet!  

This listing is a DIY KIT for self-assembly. We also offer a fully built and tested 3D printer.

Warning for US customers: If you select the combination with both steel sheets, your order will exceed $800 (with shipping) and you may be charged with customs duties. More info

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Orders have a leadtime of 3-4 weeks. Check out the shipping table.



$749.00

  No VAT

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INTRODUCING THE ORIGINAL PRUSA I3 MK3S+ 3D PRINTER!

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-rated 3D 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.



Our printers have received many awards over the years and we keep working hard to make them even better!


WHAT’S NEW IN THE MK3S+

SUPERPINDA PROBE

SuperPINDA probe features a hiqh-quality sensor for a fully-automatic Mesh Bed Leveling process. Before every print, the MK3S+ probes the bed in several places and creates a virtual heightmap of the print area. This process ensures that the first layer will always be spot on!

MISUMI BEARINGS & MORE

The MK3S+ features a new set of metal clips for the genuine MISUMI bearings on the Y-axis. The belt tensioning mechanism on the X-axis was reworked and the X-end plastic parts reinforced. The filament path in the extruder was altered for better support of flexible filaments.

DOZENS OF TWEAKS

With all the cumulative upgrades from the entire MK3’s life cycle on board, the MK3S+ is the best version of our award-winning 3D printer so far. Genuine Gates belts, Bondtech drive gears, EINSY RAMBo motherboard, IR filament sensor, and many other features are the reason why the MK3S+ is the perfect 3D printing workhorse.


WHAT WE ARE PROUD OF...

The most significant features of Original Prusa i3 MK3S+

REMOVABLE PRINT SHEETS

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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.

HIGH-QUALITY PARTS

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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.

MESH BED LEVELING

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.

POWER LOSS RECOVERY

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.

FILAMENT SENSOR

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.

SILENT AND FAST

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!

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

SUPPORT FOR PLENTY OF MATERIALS

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.

OPEN-SOURCE HARDWARE & FIRMWARE

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, advanced diagnostics, remaining print time estimation, Octoprint support and more!

READ MORE ABOUT THE FEATURES INTRODUCED BY THE MK3S+ UPGRADE HERE, AND CHECK OUT THE ANNOUNCEMENTS OF THE MK3S AND THE ORIGINAL MK3.


Check out the official announcement video!

Original Prusa i3 MK3S assembly timelapse


THE ORIGINAL PRUSA I3 MK3/S/+ REVIEWS

ANIWAA review

"The MK3S is capable of delivering consistent quality prints and PrusaSlicer does a great job at prepping STL files, [it's] an excellent 3D printer that can provide professional-grade results." Read more (EN)...

PC MAG REVIEW

"The preassembled version of the Original Prusa i3 MK3S is a cinch to get up and running, is easy to operate, and has a good slicing program. It produced consistently beautiful prints in our testing, with no misprints." Read more...

THE NEW YORK TIMES REVIEW

"Of the 11 printers we have tested over the past five years, the Prusa i3 MK3S printer has produced the largest and best-looking prints." Read more...

STIFTUNG WARENTEST: 3D DRUCKER TEST 2020

Test winner: Best device in the test, very versatile, can print in multiple colors. Processes almost everything there is in filament: PLA, ABS, PETG, Nylon, Flex and more." Read more... (translated from German)

HACKSPACE UK REVIEW

"You can get under the hood and tinker with this or change that, but you don’t have to. MK3S is a printer that ‘just works’ for beginners, yet is still powerful enough for advanced use. 10/10” Read more...

CHIP (DE) REVIEW

"As the test shows, the Prusa Research Original Prusa i3 MK3S did a lot right. It is well processed, has many great features and the printing costs are very low. Especially the print quality is excellent.” Read more (DE)...

FORBES: THE BEST 3-D PRINTERS OF 2019

"Designers that rely on 3-D printing as part of their livelihood use Prusa printers to turn out consistent, quality results. These kits contain expertly chosen parts, with an eye on recent technological upgrades.” Read more...

ALL3DP MK3S REVIEW

"We tested it using its default settings and found it extremely capable. Its print quality is truly exceptional and it’s an easy-to-use, straightforward machine.” Read more...

TECHRADAR REVIEW

"If you're looking for your first 3D printer, you like to tinker, or you run a business and want a good reliable machine then look no further than the Original Prusa i3 MK3S.” Read more...

WINDOWS CENTRAL REVIEW

"The team at Prusa Research have made something special with the MK3. If you only ever own one printer, make it this one. Of course, once you buy it you will want more of them, and that's ok too.” Read more...

3D MAKER NOOB MK3 REVIEW

"In short. What I don't like about this printer? The rubber feet. What I like? Absolutely everything else!” Watch the video...

ALL3DP MK3 REVIEW

"Using this 3D printer has been a joy and an education. (...) The Original Prusa i3 MK3 is highly, thoroughly, and unreservedly recommended.” Read more...

MAKE: MAGAZINE MK3 QUICK LOOK

"This has a lot of really exciting features that are pushing what the industry is going to be doing.” Watch the video...

THOMAS SANLADERER: MK3 REVIEW

"MK3 - highly recommended. I'm really looking forward to everything this printer does becoming standard everywhere.” Watch the video...

GREATSCOTT!: MK3 REVIEW

"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.” Watch the video...

3D PRINTING NERD - MK3 UNBOXING / 3D PRINTING / FIRST IMPRESSIONS

"Josef Prusa and Prusa Research sent over a fully assembled Prusa i3 mk3 3d printer for me to test out and show off on the channel.” Watch the video...

MAKER'S MUSE: MK3 REVIEW

"The smarts, the removable print surface and dependable quality make it perfect for design and prototyping.” Watch the video...

3D INSIDER: MK3 REVIEW

"It is without a doubt the best 3D printer under $1,000 (...) It offers outstanding quality for a reasonable price and comes with a truckload of features.” Read more...


FULL FEATURES LIST (DECEMBER 2020 EDITION)

BASIC INFORMATION

  • 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

ADVANCED FEATURES

  • 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

6 REASONS TO BUY THE MK3S+

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 MK3S+ 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 texts are translated into 8 languages. 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 MK3S+ is equipped with three 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

READY FOR THE MULTI MATERIAL UPGRADE 2S

Multi Material Upgrade 2S is our unique add-on option for printing with up to 5 different filaments simultaneously. Multi-material could be your next step in the 3D printing world and the MK3S and MK3S+ are completely ready for the upgrade! MMU2S also allows you to print a soluble support interface - check out the video!


6

UPGRADABILITY

One of the most popular features of the Original Prusa i3 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!


...AND MANY OTHER REASONS!

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.

See the assembly manual for yourself!

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. PrusaSlicer is a feature-rich, frequently updated tool that contains everything you need to export the perfect print files for your Original Prusa 3D printer. But of course, we also have the settings for the third party slicers like Simplify3D, Cura, etc.


Discount program for Original Prusa i3 kit owners

Our discount program for the Original Prusa i3 kit owners gives you a 5% discount on subsequent orders of selected filaments, including the high-precision Prusament!

How does it work?

To enter the discount program, you only need to purchase your first Original Prusa i3 kit for the full price. After the i3 kit is delivered to you, your Prusa account automatically applies the 5% discount on the selected filaments. So next time you'll be stocking up on filaments you can take advantage of the 5% discount :-). Make sure to be always logged into your Prusa account, to have the discount applied.


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 600+ 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.


Original Prusa i3 MK3S+ Original Prusa MINI+ Original Prusa i3 MK3S+ Multi Material Upgrade 2S

Build volume

25 x 21 x 20 cm | 9.84 x 8.3 x 8 in18 x 18 x 18 cm | 7 x 7 x 7 in25 x 21 x 20 cm | 9.84 x 8.3 x 8 in

Layer height

0.05 – 0.35 mm0.05 – 0.25 mm with 0.4 mm nozzle0.15 – 0.35 mm

Max travel speed

200+ mm/s200+ mm/s200+ mm/s

Max hotend/heatbed temp.

300 °C / 120 °C (572 °F / 248 °F)

280 °C / 100 °C (536 °F / 212 °F)

300 °C / 120 °C (572 °F / 248 °F)

Mainboard

Einsy RAMBo 8-bit board with Trinamic 2130 drivers co-developed with Ultimachine

Custom 32-bit Buddy electronics with STM32 and latest Trinamic 2209 silent stepper drivers

Einsy RAMBo 8-bit board with Trinamic 2130 drivers co-developed with Ultimachine

MMU2S support

Yes

No

Yes

Extruder

Direct drive

Bowden system with 3:1 gearing

Direct drive

LCD screen

Monochromatic LCD

2.8″ graphic 65k color screen

Monochromatic LCD

Print surface

magnetic heatbed with removable PEI spring steel sheets

magnetic heatbed with removable PEI spring steel sheets

magnetic heatbed with removable PEI spring steel sheets

Filament diameter

1.75mm

1.75mm

1.75mm

Number of materials (simultaneously)

115

Nozzle diameter

0.4mm (default) / other nozzle diameters supported

0.4mm (default) / other nozzle diameters supported

0.4mm (default) / other nozzle diameters supported

Supported materials

Any thermoplastic including Nylon and Polycarbonate

PLA, PETG, ASA, ABS, Flex

Any thermoplastic including soluble supports - PVA, BVOH...

Filament sensor

Yes (IR)

Optional upgrade

Yes (mechanical)

Power panic

Hardware-based, single G-code line accuracy

Future software upgrade, single layer accuracy

Hardware-based, single G-code line accuracy

Ethernet connection

Via Raspberry Pi

Yes

Via Raspberry Pi

Wi-Fi connection

Via Raspberry Pi

Separate future upgrade (ESP Wi-Fi module)

Via Raspberry Pi

Advanced sensors

3 thermistors + SuperPINDA, fan RPM sensors

3 thermistors + SuperPINDA, fan RPM sensors

F.I.N.D.A

Farm mode

No

Yes (upcoming feature)

No

Calibration

Automatic, Mesh Bed Leveling

Automatic, Mesh Bed Leveling

Automatic, Mesh Bed Leveling

Print medium

SD card

USB drive / LAN

SD card

Firmware update interface

USB port

USB drive / LAN

USB port

Power supply

240W, custom made by Delta with Power Panic HW

160W, external adapter by Mean Well or Delta depending on the region

240W, custom made by Delta with Power Panic HW

Kit price

749 USD / 769 EUR (VAT incl.)349 USD / 379 EUR (VAT incl.)299.00 USD / 299 EUR (VAT incl.)

Assembled printer price

999 USD / 999 EUR (VAT incl.)

399 USD / 419 EUR (VAT incl.)

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E-shop link

Reviews

Grade 
10/27/2020

wow...

I have never seen a printer go over a year with 4-5 different transitions of locations just to print perfectly without any required work or calibration to be redone.

I have easily convinced four other people already to go with PRUSA Mk3s when they asked which brand was the best. With an $800 price tag, the PRUSA blows away nearly all of the competition of printers that costs double what the PRUSA does.

  • 31 out of 32 people found this review useful.
Grade 
10/16/2020

Won over by QUALITY

After delivery of the kit, I took my time reading all the material and going online to view assembly suggestions, etc. Time well spent. Though not necessary, the provided instruction book was everything I really needed. A great deal of effort was put into the preparation of this manual. I strongly urge future kit builders to read all the instructions, and NOT be tempted to assemble by picture alone. The manual even states this. Trust me, you will save yourself much frustration by following this advice. After the assembly, and then using the included handbook for configuration and calibration I was pleasantly surprised that the first check of everything was OK. ALL WAS VERIFIED. Happy beyond compare. Did several first layer calibrations and then several sample prints. I can't adequately describe how pleased I was with the results. To any one that wonders if purchasing a Prusa is worth it, YES. Hands down compared to the 4 other knock offs I have purchased, upgraded and tinkered with. None of them even after multiple enhancements can even come close to what my i3 MK3S kit does when properly calibrated and assembled. As other's have stated, I too will be a long term Prusa customer. Thank you for providing a product that lives up to the legend you have created with quality.

  • 18 out of 18 people found this review useful.
Grade 
10/15/2020

Awesome Device, Great Project

Doing the assembly myself was a very satisfying way to learn about 3D printing. I'm not an engineer, but I like to tinker and this project was a great investment for me. I took 14 hours and 30 minutes, but I was being very careful because I wanted to be sure I knew what I was doing with each step. You have to be patient and careful, but it's an enjoyable accomplishment to get it all together and start printing. This is my second 3D printer, and it's a big upgrade. The quality, precision and size of the prints is impressive. I've got a lot to learn, but I'm really excited about it after about six weeks post assembly. I highly recommend this product and the project - but be prepared for it to be a big project.

  • 6 out of 6 people found this review useful.
Grade 
10/08/2020

Goodbye Ender 3 Pro, Hello Prusa i3 MK3S!

I performed dozens upon dozens of upgrades on my Ender 3 Pro like Direct Drive, BlTouch ABL, SKR Mini V1.2 and Touch Screen, etc. No matter what, I still wasn't getting the quality I wanted, and no matter what I did, I couldn't get parts to stop warping. I felt like I was genuinely going insane, as I had poured hours upon hours of work into making it "better."

I got my i3 MK3S kit last weekend, and after 4 days of on and off assembly, I can confidently say that the price of this machine is heavily justified. I got the print quality I wanted immediately, and switching between materials is incredibly straightforward.

Thank you Josef Prusa and the entire Prusa Team for creating a magnificent printer. I won't be buying a non-Prusa printer ever again.

  • 26 out of 26 people found this review useful.
Grade 
09/21/2020

Unpacked, built, started, worked!

Building this 3d printer kit is a real experience. The detailed manual will guide you step by step through the process and leaves no room for guesses.

After building this printer, I started the first prints and they finished with no problems.

Since then, I started printing parts for the enclosure, then tools, holders - small and large items in PLA and PETG (Prusament) and had no single failure or problem.

Well done!

  • 8 out of 8 people found this review useful.
Grade 
09/19/2020

Good printer, but I recommend the assembled version

Ordered the kit and definitely must say it was exciting and partly fun to build it. I've only build computers before so this was a challenge! But according to the calibration afterwards I was doing it pretty precisely.

However, I must say it's really annoying to get the nuts in the 3D printed parts sometimes. It's much better if they are loose. The screw pull technique sadly doesn't work everytime, so only my hammer was able to get it in the nut trap (be very careful though!). All the metal parts were relatively easy and straightforward to assemble! If the 3D printed parts were already prepared, this would have been really easy! I can understand that they want to save money and stuff, but seriously, if I knew this before I'd have ordered the fully assembled version.

After assembling (took me about two days, because I wanted to be very very careful) the calibration was pretty much straightforward! Sadly, I'm still no 3d printer expert, so I wasn't sure if I was doing everything correct...I did what the manual and the handbook said, calibration was alright but it still didn't print correctly.

It took me some tries and I had to readjust the PINDA sensor a few times which was a hassle because of the 3d printed part, but I think it's now relatively going well, even though there are some issues with the first layers sometimes and I'm struggling to identify the issue. I doubt it's the printer's fault though.

My old 3d printer was having similar issues, so I hope I'll be able to solve these.

The first correct print was in good quality, similar to what my Monoprice Voxel did. I just hope this printer lasts longer. All of the security measures are definitely a pro, and the specs itself are better than other printers.

Anyway, because of the quality of the 3d printed parts for the printer itself I cannot give 5 stars, but it's really incredible how nice everything works, even if a noob like me builds it.

  • 10 out of 16 people found this review useful.
Grade 
09/15/2020

The "fire-and-forget" printer

This will be a short review. I started with a mistake by buying the rough textured sheet with the kit instead of the smooth one. As I mostly print PLA, I had lots of issues with prints getting loose and the problems resulting of that. Since I noticed that this was a mistake and I ordered the smooth one, prints stick like hell and I now can start prints and walk away, letting the machine run for days without being concerned. It's just great. So - please do better than me and read the description of the two sheets, so you can pick the correct one - or order both.

  • 16 out of 16 people found this review useful.
Grade 
09/06/2020

Took my 3D Printing To A New Level!

I purchased my MK3S Kit after seeing a few prints from a friend that had one. Now that I’ve completed the assembly and have been printing like a madman for several days, here’s the key value points:

ASSEMBLY (Kit vs Built): I didn’t have many issues assembling this kit. There are several opportunities for making mistakes, but if you actually read and follow the steps you will be fine. I spent about 12 hours of actual assembly. It requires only a basic mechanical skill. If you’ve done other DIY projects around your home with screws, nuts, etc. you’ll be fine. More important is patience and attention to detail. The included manual is great, but I used the online one as they update that more frequently, and you can see additional pictures you can zoom in when you need clarification.

INITIAL SETUP: The setup routine is quite easy to follow and complete. It does most of the tasks you’ve traditionally had to do manually (bed level, X/Y/Z calibration, hotend and bed temp tests, etc.) I ran in to a few issues when calibrating the bed level where the nozzle would grab the paper. As documented in their manual, the PINDA needed adjustment. I’ve had to do this twice and in both cases I had to adjust the Z level during the first layer calibration to about -0.600 to get a decent smoosh, but once set there’s few cases you’ll need to adjust it.

PRINT QUALITY: I’ve printed about 15 objects by now trying out Prusament PLA (came with printer), PETG, ASA, and a few non-Prusament PLAs. The Prusament gives the quality of premium filament at nearly the cost of standard filament. Other filament worked fine, but you’ll need to calibrate the temp and flow rates for best results. The removable/flexible sheet makes print removal a ‘snap’, Layer lines are less noticeable that anything I’ve printed before. In fact, I don’t have to sand these prints.

PROS: Well-documented assembly instructions, solid design and quality components, Removable/flexible steel print surfaces, easy/automated setup, flexible produces quality prints with less effort and tweaking, great support/community, most replacement parts are printable. Great Prusa Sc1cer software, larger print area than most in this price range.

CONS: PINDA Sensor is ‘touchy’ to get the right height, ‘stealth’ mode isn’t all that quiet, (kit) assembly may lead to gummy-bear addiction.

SUMMARY: This printer is better than I expected for the price. I’d recommend it as an intermediate (or step-up) printer for anyone with basic 3D printing knowledge. Overall quality is great and it’s a feature-packed printer. As most parts are printed, replacement parts are easy to obtain. Their customer service is great (I had a Chat about my order), and there’s a large support community. Firmware and Sl1cer updates replace the need for new hardware and boards (or printer).

  • 12 out of 12 people found this review useful.
Grade 
07/25/2020

Absolutely worth it, 100%, no questions

Got the kit, assembled in ~6-7 hours total. Manual was very easy to follow and comments/pictures online also helped when I was unsure. First time building a 3D printer myself and came the other side without fear of something not done right. First print after automated calibration came out perfect (PLA), everything after came out perfect. Super easy to use, extremely high quality results even on large/long prints. Works great with PrusaSlice and Simplify3D. Successful as well with PETG, not a single problem. Works great and very stable with Octoprint as well, unlike some other printers like MP SelectMini I had before.

I had on my 4th print an extruder jam caused by a model that had too many small features at 0.1mm layer height, which allowed heat creep. Followed disassembly instruction on KB, was up in running again in 30 minutes. PTFE tube was totally jammed/filled. THERE WERE SPARE PTFE TUBES IN THE BOX! Cannot believe that everything that needs a spare has multiple spares. There is not
a more turnkey printer kit than this.

You cannot regret buying this printer. You will learn a ton about how it works, it prints fast, quiet and very smooth, and KB/support are awesome. Highly recommended.

  • 16 out of 16 people found this review useful.
Grade 
07/23/2020

Very good and reliable printer

After using over 10 different 3d printers, including various methods, including FFF. This one easily beats them all. I'm taking into consideration some top brands like HP, Ultimaker, Stratasys. There's no way to beat the value and quality of Prusa for me. Big up and hope to see and buy more from these lovely Czech peeps :)

  • 9 out of 10 people found this review useful.

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Original Prusa i3 MK3S+ kit

Original Prusa i3 MK3S+ kit

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 we believe that we've developed our best 3D printer yet!  

This listing is a DIY KIT for self-assembly. We also offer a fully built and tested 3D printer.

Warning for US customers: If you select the combination with both steel sheets, your order will exceed $800 (with shipping) and you may be charged with customs duties. More info

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