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3. Upgrading to MK2/S and MK2.5S

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3. Upgrading to MK2/S and MK2.5S

3. Upgrading to MK2/S and MK2.5S
Relevant for:
MMU1
Last updated 4 years ago
3. Upgrading to MK2/S and MK2.5S
 Difficulty
Moderate
 Steps
4
 Available languages
ENCSPLESDEITFR

Step 1 Upgrading to MK2.5S is a must

Upgrading to MK2.5S is a must
Upgrading to MK2.5S is a must
⬢In order to get the MMU2S running properly and without any issues, you MUST upgrade to the MK2.5S.
⬢Why? Well the firmware is expecting filament IR-sensor, Noctua fan, new P.I.N.D.A. sensor and other improvements, which aren't present on the MK2/S.

Step 2 Upgrading your MK2 to MK2S

Upgrading your MK2 to MK2S
Upgrading your MK2 to MK2S
⬢In case you are still rocking the Original Prusa i3 MK2, we strongly advise upgrading to the MK2S.
⬢You don't have to follow the entire MK2 to MK2S assembly, as some chapters will be repeated in MK2.5S assembly with new parts, but consider following:
⬢MK2S swapped zip ties for U-bolts to further improve the rigidity of the heatbed assembly. This will greatly reduce vibrations and possible artefacts in the printed objects.
The MK2 to MK2S assembly manual is here: https://help.prusa3d.com/en//c/EN_upgrade

Step 3 MK2S vs MMU1 extruder disassembly

MK2S vs MMU1 extruder disassembly
MK2S vs MMU1 extruder disassembly
MK2S vs MMU1 extruder disassembly
⬢The MK2.5S assembly guide will take you through the MK2S disassembly and upgrade process. Your extruder on the MMU1 looks slightly different, but the process is almost the same.
⬢Extruder (multiplexer) on the MK2S with the MMU1 upgrade.
⬢Extruder on the MK2S without the MMU1 upgrade.
Follow the disassembly process in the MK2/S to MK2.5S upgrade manual and in case of any issues, contact us immediately ;)

Step 4 Upgrading MK2S to MK2.5S

Upgrading MK2S to MK2.5S
Upgrading MK2S to MK2.5S
Upgrading MK2S to MK2.5S
⬢Now it is time to upgrade your MK2S to the MK2.5S!
⬢Make sure you've printed all the plastic parts. Note that some might be part of the MMU2S upgrade kit, find them and use them.
⬢Don't forget to use one of the three motors, you have disassembled from the MMU1! (The remaining two will be used for the MMU2S unit)
⬢Upgrade to MK2.5S using this manual: https://help.prusa3d.com/en//c/Original_Prusa_i3_MK2_to_MK2.5S_upgrade
⬢After finishing the MK2.5S assembly, please check the last chapter of this guide: 4. Upgrading to MMU2S
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