Original Prusa i3 MK2.5S vs MK2.5 + important links  

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Jakub Dolezal
(@jakub-dolezal-2)
Admin

Hi,
it is very important to learn the difference between MK2.5S and MK2.5, as they aren't the same printers!
MK2.5 uses B7/R3 extruder design with Optical filament sensor => Needs its own MK2.5 firmware
MK2.5S uses different extruder design and brand new IR-sensor => Needs a different MK2.5S firmware

Please keep this mind! Flashing incorrect firmware will cause issues with the IR-sensor!

Important links for the MK2.5S
Online Assembly manual:
https://help.prusa3d.com/en/tag/mk2-5s/

3D printing Handbook:
https://cdn.prusa3d.com/downloads/manual/prusa3d_manual_mk25_en.pdf

Original Prusa i3 MK2/S to MK2.5S upgrade kit
https://shop.prusa3d.com/en/printer-upgrades/179-original-prusa-i3-mk2s-to-mk25-upgrade-kit.html

Important links for the MK2.5
User Guide for MK3 (some features are available on MK2.5)

The video is in English but includes subtitles for IT, PL, ES, DE, FR, CZ languages.
Click on the "CC" icon in the lower right corner

Online Assembly manual:
-- English -- http://manual.prusa3d.com/c/Original_Prusa_i3_MK2S_to_MK2.5_upgrade
-- Italian -- http://manual.prusa3d.com/c/Aggiornamento_Original_Prusa_i3_MK2S_a_MK2.5
-- Czech -- http://manual.prusa3d.com/c/Original_Prusa_i3_MK2S_na_MK2.5_upgrade
-- Polish -- http://manual.prusa3d.com/c/Ulepszenie_Original_Prusa_i3_MK2S_do_MK2.5
-- Spanish -- http://manual.prusa3d.com/c/Mejora_de_Original_Prusa_i3_MK2S_a_MK2.5
-- German -- http://manual.prusa3d.com/c/Upgrade_von_Original_Prusa_i3_MK2S_zu_MK2.5
-- French -- http://manual.prusa3d.com/c/Mise_à_niveau_de_l%27Original_Prusa_i3_MK2S_vers_la_MK2.5
-- Japanese -- http://manual.prusa3d.com/c/Original_Prusa_i3_MK2S_to_MK2.5_upgrade_Japan

3D printing Handbook:
-- English -- https://www.prusa3d.com/3dhandbookMK25
Other languages will be available soon

Latest drivers including Slic3r PE and PrusaControl:
https://www.prusa3d.com/drivers

Latest firmware:
https://www.prusa3d.com/drivers/#firmware
How to upgrade firmware: link

Printable printer's parts:
https://www.prusa3d.com/prusa-i3-printable-parts/
Recommended print settings are 0.2 mm layer height, infill 20% GRID and material PETG

Printable 3D models:
https://www.prusa3d.com/drivers
Models are part of the driver's package

Knowledge base
https://help.prusa3d.com/l/en

In case you think, something is missing, please let me know below and as always Happy Printing! 😉

This topic was modified 5 months ago 2 times by Same Old Shane
Assembly manuals / Knowledge Base
The guy behind Prusa assembly manuals......
Posted : 09/03/2018 12:34 pm
JoanTabb
(@joantabb)
Moderator

Hi Jakub,

a projected delivery timetable would be good

mk3's ordered this year, seem to be shipping before upgrades ordered last year!

regards Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK...
Posted : 03/05/2018 10:46 pm
Jakub Dolezal
(@jakub-dolezal-2)
Admin

Hi Joan,
so far we have a shipping table for the MK3 ( https://help.prusa3d.com/l/en/article/6OdtbKF1bw-shippingtable ). We've sent some kits prematurely due to new packing and shipping system.

Assembly manuals / Knowledge Base
The guy behind Prusa assembly manuals......
Posted : 04/05/2018 9:39 am
PeP
 PeP
(@pep)
Active Member

Hi there,

I just have a crazy question : on Slic3r, should I keep my MK2S settings... or move to MK3 ?

Thank you.
PIierre

...
Posted : 06/05/2018 3:46 pm
Jakub Dolezal
(@jakub-dolezal-2)
Admin

Hi Pierre,
please use MK2S profiles for your MK2.5.

Assembly manuals / Knowledge Base
The guy behind Prusa assembly manuals......
Posted : 07/05/2018 4:08 pm
yankeexray
(@yankeexray)
Active Member


Hi Pierre,
please use MK2S profiles for your MK2.5.

Just upgraded my Mk2S to a MK2.5 and installed firmware 3.2.1. The first prints have come out really bad.. starting to troubleshoot right now but before I get to crazy with that can you please confirm this is the right Slicer profile that I am supposed to be using? I am a little confused because I don't see a specific "MK2S"option anywhere

I have a MK3 and a MK2.5 now, so I selected this option from the configuration assistant

From these options, I selected "Original Prusa i3 MK2"

My MK2S printer did spend some of it's life as a MK2S Multi Material (original version) and had that firmware on it for a while.. don't know if that matters in any way.

Is this correct?

Thanks!

...
Posted : 26/05/2018 2:38 am
hartmut.h2
(@hartmut-h2)
New Member

Hi Jakub,
is there a link to the scad files for the MK2.5 upgrade parts?

Hartmut

Posted : 26/05/2018 7:58 pm
GertL
(@gertl)
Reputable Member

This what i find on git.
https://github.com/prusa3d/Original-Prusa-i3/tree/MK2.5/Printed-Parts

---
Gert...
Posted : 26/05/2018 8:04 pm
hartmut.h2
(@hartmut-h2)
New Member

Thanks

Posted : 26/05/2018 8:35 pm
Grandpa Joe
(@grandpa-joe)
Eminent Member

Are the extruder and filament sensors the only difference between 2.5 and 2S ?
How to upgrade the 2.5 to 2s?

Is the MMU2 upgrade compatible for both?

Posted : 23/02/2019 5:38 pm
Grandpa Joe
(@grandpa-joe)
Eminent Member

Sorry, I mistyped. I have the 2.5 already. I am wondering about the difference between the 2.5 and the 2.5s.

Will the MMU2 upgrade be compatible to both?

Posted : 23/02/2019 5:44 pm
JoanTabb
(@joantabb)
Moderator

@grandpajoe

sorry this is a late reply, I am sorting some 'Spam' posts and saw this was unanswered

you need the mk2.5s for mmu2s

mk2.5 works with mmu2

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK...
Posted : 28/09/2019 12:59 pm
michael.f27
(@michael-f27)
Eminent Member

I have been offered a 2.5S second hand. How will this compare to a Mk3S?

I have been toying with Mk3S and mini. I want to do strong working parts so I would like to use nylon, petg, and pc (plus other strong materials I have missed).

I just wondered what the advantages of a MK3 over the MK2.5s would be.

All help appreciated.

Regards

Mick

Posted : 13/12/2019 8:56 pm
Zwirbel
(@zwirbel)
Eminent Member

Copy / paste from the Prusa website, theres are the main differences:

 

 

  • Brand new EINSY RAMBo motherboard
  • Silent Trinamic drivers with 256 microstepping
  • Max travel speed: 200 mm/s
  • Sensorless homing for X and Y axes
  • Improved frame rigidity with aluminium extrusions
  • Power loss detection and recovery

 

Posted : 10/01/2020 3:29 pm
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