Original Prusa MK4S 3D printer assembled

Detailed product description

The Original Prusa MK4S will reliably handle any of your projects. It is based on the successful MK4 model, which has won the hearts of 3D printing enthusiasts and the recognition of large companies, and is even more precise and faster. Thanks to the new 360 ° cooling, High-flow nozzle and significantly improved firmware, you can print your 3D models quickly and in the best quality.

Package contents: Original Prusa MK4S, Steel printing plate with smooth PEI surface, Tool set: Wrench, wrench 13-16, pliers, Allen and Torx wrenches, Spoolholder, 3D printer manual, Prusament PLA Prusa Galaxy Black 1kg, Alcohol wipes, acupuncture needle, USB drive with sample prints (G-codes), Prusa bearing grease

Ideal for professionals and beginners

Whether you're new to 3D printing or have years of experience, the MK4S is the machine for you. Thanks to its intuitive controls, even a complete beginner can easily handle it. But at the same time, it performs so well that it is the perfect choice for professional workshops. Getting started with the MK4S is a breeze - you unpack the printer, plug it in, perform a quick calibration and print your first model within a quarter of an hour!

Unbeatable print quality

Although the MK4S is our fastest printer yet, it never sacrifices print quality for speed. Thanks to its finely tuned firmware, print profiles and high-quality components, it prints reliably accurate models even at high speeds. This is confirmed by the perfect 30/30 print quality score on TechRadar.

Perfect dimensional accuracy

Your models should print exactly as you designed them. Especially if they have to fit together exactly. Thanks to the extraordinary precision of the printing, this is no problem with the MK4S. Take a look at the accuracy comparison from the CT scan:ň

360° Cooling – Print without supports

With the MK4S, you need significantly fewer supports, which means you can print faster and use less material. The powerful 360° cooling allows you to print up to 75° overhangs without supports, saving you a lot of time and printing costs. It also makes it easier to print flexible materials like TPU, which are difficult to remove supports from.

Strong and durable prints

MK4S prints can really withstand a lot. The new cooling and powerful nozzle ensure perfect layer adhesion, making your printed models strong and durable. The MK4S has a number of print profiles, so you can choose between higher speed or maximum strength.

Perfect surface

The MK4S print profiles aim for a flawless surface – you can count on the resulting print to be beautifully smooth and free of defects. You can adjust the level of detail yourself using the build layer height. This allows you to print everything from highly detailed models (with a 0.25mm nozzle) to larger objects where details are not so important.

Seamless operation

You can also manage your printer remotely. The MK4S has Wi-Fi with NFC setup and a LAN port, so you can control it from anywhere using Prusa Connect or the Prusa mobile app. For maximum security, the MK4S can also operate completely offline. We believe that no organization should be interested in your print data, whether you are developing a new space shuttle or just printing toys for the kids or fun models for friends. That is why you can find our printers in companies that are leaders in their field, such as universities and research institutions around the world.
Our machines are also primarily designed to operate completely offline - without any drawbacks or limitations. You can share data with our technical support and connect your printer to the Prusa Connect remote print management system, but this decision is entirely up to you. Our code is open-source, so you can always check that we are not cheating and do not want to steal your files, even when you connect to the Internet.

Advanced Materials

The MK4S can handle most filaments. You can choose the best one for your creations: PLA, PETG, ASA, PC-CF or even flexible TPU! Thanks to the direct drive extruder, it processes it without any problems and you can create great flexible models! To get the most out of your printing materials, enclose your MK4S in the Enclosure box.

Accessories for enthusiasts

The MK4S is compatible with two new accessories for enthusiasts and modders. The first is a GPIO “hackerboard”, which allows you to control external electronics using G-codes, and the second is an accelerometer, an accessory for those who have heavily modified their Nextruder. The following accessories are also suitable:

• MMU3
  The MK4 printer can also be expanded with an optional accessory, which allows the printer with a single extruder to work with up to five colors (materials) within a single print. Simply insert your five selected filaments, "slice" your model in PrusaSlicer, start printing and the MMU3 will take care of the rest.  With redesigned plastic parts, reinforced metal parts and a new, completely rewritten firmware, the MMU3 can produce amazing color prints faster and more efficiently than similar solutions on the market. The MMU3 also has optimized nozzle cleaning and it takes 25-35 seconds to change filament - this makes printing with the MMU3 fast and reliable, and you no longer have to bother with cleaning up a lot of wasted filament. The MMU3 is up to three times more economical in filament handling compared to other multi-material systems with a single nozzle - less wasted plastic, more printing! The high-flow nozzle in the MK4S allows for faster printing, but when using the MMU3, the standard nozzle makes much more sense. It also works with the MMU3 high-flow nozzle, but the increased volumetric flow rate results in more filament waste when printing. In other words, the MMU3 provides the best performance, the same speed and the highest efficiency (lowest waste production) in combination with the standard nozzle, both on the MK4 and MK4S.
• Enclosure
  If you want to print more advanced technical materials on the MK4, you will need an Enclosure. The Enclosure will provide a stable environment for the printer, protect the print from drafts, eliminate the smell of the filament and further dampen the already very quiet sound of the printer. An enclosure is not necessary for all types of filament. Most common materials such as PLA, PETG, and even some advanced ones (such as PCCF) do not require an enclosure. However, if you need to print with more demanding materials such as ASA, ABS, PC, etc., an enclosure is the best choice to achieve the necessary elevated temperatures and stabilized environment. An optional accessory – a high-performance filtration system – also takes care of ultra-fine particles. A number of useful optional accessories are also available for the Original Prusa Enclosure, such as an advanced filtration system with a HEPA filter, extra lighting - an LED strip, a mechanical lock or a fire protection system.

Open design – easy maintenance

We design our machines to withstand continuous operation with minimal downtime. The open bed-slinger design is the result of 10 years of development and allows easy access to all parts without the tedious disassembly of the entire printer. No welded or glued parts – everything can be easily disassembled (and reassembled) using a set of Allen keys.

Nextruder & 32-bit platform

The Original Prusa MK4S printer is built on an in-house developed 32-bit embedded platform and is equipped with a new generation extruder - Nextruder.

Technical parameters:

Dimensions
Maximum print dimensions - 250 x 210 x 220 mm | 9.84 x 8.3 x 8.6 in
Filament diameter - 1.75 mm
Layer height - 0.05-0.30 mm
Printer size (without spool) - 7 kg, 500×550×400 mm; 19.6×21.6×15.7 in (X×Y×Z)

Electronics
Motherboard - 32-bit STM32 xBuddy motherboard
Stepper motor drivers - Trinamic 2130
Stepper motors - Precise 0.9° X,Y stepper motors (prevention of "VFA" surface defects)

Extruder
Extruder - Nextruder, direct drive ("Direct Drive"), E3D V6 compatible (using adapter)
Extruder electronics - Special breakout board for connecting fans, thermistors and other components.
Filament guide - Aluminum heatsink, full metal hotend
Drive system - Nextruder planetary gearbox, ratio 10:1
Cooling - High-performance turbine, 360 ° cooling system
Nozzle - Prusa Nozzle brass CHT - 0.4 mm
Max. operating temperature
Maximum nozzle temperature - 290 °C / 554 °F
Maximum bed temperature - 120 °C / 248 °F

Controls
LCD screen - 3.5″ graphic display with 65 thousand colors
Connectivity options - NFC receiver, optional ESP Wi-Fi module (supplied with printer)
Printing media - USB disk / LAN / internet via Prusa Connect

Sensors
Advanced sensors - Filament sensor, Load Cell sensor, power panic recovery, 4 high-precision thermistors (original Semitec) + fan speed monitoring

Printing surface
Printing surface - Magnetic bed with replaceable printing plates

Calibration
Printing bed calibration - Automatic, Mesh Bed leveling (only on the printing surface)

Materials
Supported materials PLA, PETG, Flex, PVA, PC, PP, CPE, PVB and if you use the Original Prusa Enclosure with an additional filter system, ABS, ASA, HIPS or PA

Power
Power supply - Custom-made 240W, with hardware support for power panic recovery
Power consumption - PLA: 80W / ABS: 120W

NOTE: The warranty does not cover consumable parts such as printing plates (smooth, textured, etc.). Their surface gradually wears out naturally during printing without necessarily being a defect in the material or manufacturing process. The warranty does not cover scratches, dents and other cosmetic defects. The warranty only covers plates that were defective upon receipt.