The Original Prusa i3 MK3S+ 3D printer is a novelty from the well-known European brand Prusa Research.

MK3S+ Review

This self-assembly kit is an upgraded version of the popular Original Prusa i3 MK2S and features high and consistent 3D print quality with the new MK52 extruder and platen and interchangeable PEI sheets. Added new sensors for filament and 3D printing emergency stop, which makes working with this 3D printer even more convenient. A sensor for measuring the speed of rotation of coolers allows you to avoid overheating of the nozzles and the extruder heatsink. The Original Prusa i3 MK3S+ 3D Printer is an excellent high quality 3D printer for great results in 3D printing. Let’s have a look at the detailedPrusa i3 MK3S+ review below.

The Original Prusa i3 MK3S+ 3D Printer DIY Kit is a new development from Josef Prusa, best known for the Original Prusa i3 MK2S version, which received excellent reviews from users. The new MK3 model features important changes that improve print quality and make 3D printers easier to use.

The first interesting feature of this model is the heated 3D printing table MK52 Magnetic HeatBed. It is equipped with the ability to install interchangeable alloy steel sheets with a PEI surface. The mat is highly flexible and magnetic, making it quick and easy to change, saving time waiting for the model to cool down. As standard, the 3D printer table comes with a textured PEI powder sheet. Smooth PEI sheet and Gloss CoI PEI powder sheet are available separately.

There have been significant changes in the design – now the Y-axis is represented by an aluminum profile, which makes the structure even more rigid and stable. At the same time, the frame along the Z-axis is increased by 10 mm and is 210 mm.

The Original Prusa i3 MK3S+ 3D printer is now even more powerful thanks to the new EINSY RAMBo motherboard, the most advanced motherboard of our time, which also takes the reliability of the 3D printer to a new level: the detection of missed steps and layer shifts in 3D printing helps to identify errors and correct them immediately . At the same time, the Trinamic2130 stepper motor drivers ensure incredibly quiet operation during 3D printing, and increased print speed allows you to print incredibly fast – more than 200 mm / s.

The Original Prusa i3 MK3S+ kit is equipped with an optical filament presence sensor: it detects the presence or absence of a plastic filament. If no filament is detected during printing, the printer will stop printing and ask you to insert a new spool of filament. An important filament jam detection feature has also been added, after which the printer reports the need to clean the nozzle to continue quality work.

Additional features

There is an emergency stop sensor in case of power loss (Power Panic), which also increases the reliability of the Original Prusa i3 MK3S + 3D printer. If a power interruption is detected, the sensor turns off the heating of the print bed and extruder, leaving a reserve of energy to raise the print head. After power is restored, printing can be continued again.

For 3D printing, a more reliable Bondtech extruder is used: now the plastic filament is captured from both sides, which increases the pressing force and makes working with flexible filaments much easier. New less noisy, but at the same time powerful Noctua coolers have been installed that provide uniform cooling of the printed part on both sides, as well as a sensor to measure their rotation speed. This avoids overheating of the nozzles and radiator during operation.

Another feature of the MK3 model is the presence of two additional thermistors. The first one measures the ambient temperature, thus avoiding the MINTEMP error that often occurs in rooms with temperatures below 15 ° C. The second one is integrated into the PINDA 2 induction sensor in the Z direction and allows you to compensate for the influence of the temperature of the printing table on the height of the sensor, thereby improving the quality first layers of printing. As for thePrusa i3 MK3S+ price, it starts from 799 USD. If you don’t know Prusa i3 MK3S+ where to buy it, use reliable online shop.


  • FDM printing technology
  • Printing area 210×210×250 mm
  • The thickness of the layers with which the printer prints is 0.05 – 0.35 mm. (50 – 350 microns)
  • Calibration: automatic 9-point XYZ / oblique axis compensation
  • Maximum print speed 200+ mm/s
  • Sensors: 4 thermistors, fan sensor, stalled extruder, sheared layers
  • Plastic loading diameter 1.75 mm
  • Support for models from Autocad, Solidworks, Kompas, 3Dmax, Archicad, Zbruch, Cinema4D, Scatchup and others. The model is exported from the program in STL format.
  • Program for preparing the model for printing Cura, Replicator G and others.
  • Table heating: With cold corner compensation for even cooling of the printed model
  • Number of extruders 1pc (Bondtech)
  • Operating temperature of the extruder 190 – 260 °C
  • Extruder nozzle diameter 0.4 mm (can be replaced with other diameters)
  • Working environment temperature 8 – 40 °C
  • Support for USB, SD-card
  • Consumables Plastics PLA, ABS, PET, HIPS, Flex PP, Ninjaflex, Laywood, Laybrick, Nylon, Bamboofill, Bronzefill, ASA, T-Glase, Carbon Fibers, Reinforced Threads, Polycarbonates, etc. (thickness 1.75mm)
  • Supported file type .stl, .obj .gcode, .amf, .dae
  • Operating systems Windows XP, Win Vista, Win7, Win8, Win10, Linux, MacOS
  • Display 5″ LCD
  • Input voltage 50…60 Hz
  • Power 110/220 W
  • Power supply 12V
  • Printer dimensions 420 x 420 x 380 mm
  • Weight 6.5 kg
  • Purpose Personal
  • Country Czech Republic

To sum up

An upgrade of the Original Prusa i3 Mk3S desktop FDM 3D printer with a number of improvements, mainly related to the calibration system and extruder. Calibration is carried out at nine points using the SuperPINDA sensor, which takes into account the thermal deformation of the stage. The direct extruder has been redesigned to improve the reliability of bar feeding, especially when working with flexible materials, the reliability of the filament sensor and the serviceability of the Bondtech feed mechanism. The device is offered both in assembled form and as a kit for self-assembly.

Prusa i3 MK3S+ price is $1099

Helen 3d editor

Helen’s passion is 3D Technology. She always loved hi-tech but 3D Reality was something that she never thought of before. She attended the first course on 3D printing technology and she was immediately fascinated by it.

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