Original Prusa i3 MK2/S to MK2.5S upgrade kit

We are aware of that the full upgrade from Original Prusa i3 MK2/S to MK3S is a little bit pricey, so we came up with the second best option - the MK2.5S upgrade. It gives you the best features of magnetic bed with spring steel sheet, Bondtech extruder gears, Noctua fan and more.

But if you want the full MK3S upgrade anyway, no problem! You can find it here.

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$199.00

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Printed parts are NOT included! Please print them before you disassemble your MK2/S! (Filament is included in the upgrade package and G-codes are available at prusa3d.com)

MK3S is a little bit pricey, so we came up with the second best option - the MK2.5S upgrade. It gives you the best features of magnetic bed with spring steel sheet, whole new extruder head with Bondtech and Noctua fans goodness and also the P.I.N.D.A. 2 bed leveling sensor and filament sensor. 

But if you want the full MK3S upgrade anyway, no problem! You can find it here.

Upgrade kit contains:

  • Magnetic MK52 Heatbed (12V) with your choice of either smooth pei or powder coated spring steel print sheet
  • Bondtech extruder gears
  • IR Filament Sensor + cables
  • P.I.N.D.A 2 with thermistor 
  • Noctua fan 5v
  • Black fan-nozzle-shroud from easyABS
  • 200g black(*) PETG filament

You will not be able to use the previous version of the Multi Material Upgrade for MK2S with the MK2.5S! You need to upgrade to MMU2S. For all owners of the previous MMU version, the price is set to 149 USD / EUR..

G-code files to print on your MK2/S will be available prior to the release in Prusa i3 printable parts  

You can check out what is new in the article on PrusaPrinters.org.


Original Prusa i3 MK2S

Original Prusa i3 MK2.5S

Original Prusa i3 MK3S

Build volume

25 x 21 x 20 cm | 9.84 x 8.3 x 8 in25 x 21 x 20 cm | 9.84 x 8.3 x 8 in25 x 21 x 21 cm | 9.84 x 8.3 x 8.3 in

Layer height

0.05 – 0.3 mm0.05 – 0.3 mm0.05 – 0.2 mm

Speed

100 mm/s100 mm/s200+ mm/s
PSU240V/12V240V/12V240V/24V

Motherboard

miniRAMBOminiRAMBOeinsyRAMBO

Print surface

MK42

MK52 12 V / removable sheets

MK52 24 V / removable sheets

Bondtech gears

No

Yes

Yes

Noctua fan

No

Yes

Yes

Trinamic drivers

No

No

Yes

Filament sensor

No

Yes

Yes

PowerPanic

No

No

Yes

Raspberry Pi Zero W connectivity

No

No

Yes

P.I.N.D.A. 2 with thermistor

No

Yes

Yes

Hotend fan RPM

No

Yes

Yes

Print fan RPM

No

No

Yes

Crash detection

No

No

Yes

Stealth mode

No

No

Yes

Aluminium extrusion

No

No

Yes

Reviews

Grade 
07/20/2019

Fantastic Upgrade if you have the MK2/S

I bought the original MK2/S in 2017. This upgrade made the printer so much quieter and my prints are even better with the new extruder printed parts and powder coated sheet. Do yourself a favour and upgrade to this version for cheaper! Love Prusa!

  • 4 out of 7 people found this review useful.
Grade 
10/11/2018

Worth every cent!

The PEI sheet on my Mk2s was starting to show signs of wear, so I went with the Mk2.5 upgrade package instead of just getting a new PEI sheet. Worth every cent! The upgrade process went along without issues, and it took me about 3 hours and 3 cups of coffee to complete. The Noctua hotend fan makes it quieter, the flexible bed makes it easy to get prints off and the new X-axis parts bump up print quality and thermals compared to the stock Mk2s hotend.

  • 26 out of 28 people found this review useful.
Grade 
09/06/2018

Best Upgrade I have done so far.

I bought this upgrade so I can use the MMU2.0, but so happy with the upgrades, from the powdered coated spring sheet to the optical filament sensor. Not sure which parts made it run quieter, but it is. Prints are coming out smooth and better looking than before. Documentation was great and the added comments from others is a nice touch. Just remember to print your new parts first! Time well invested on my printer. Only had to back track once on some wiring I routed wrong, I recommend this for anyone with a Mk2s.

  • 20 out of 22 people found this review useful.
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Original Prusa i3 MK2/S to MK2.5S upgrade kit

Original Prusa i3 MK2/S to MK2.5S upgrade kit

We are aware of that the full upgrade from Original Prusa i3 MK2/S to MK3S is a little bit pricey, so we came up with the second best option - the MK2.5S upgrade. It gives you the best features of magnetic bed with spring steel sheet, Bondtech extruder gears, Noctua fan and more.

But if you want the full MK3S upgrade anyway, no problem! You can find it here.