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3D printers9
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Supplemental Statements

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Upgrade your Original Prusa i3 MK2.5S MMU2S from MK2 MMU1

1. Introduction

2. MMU1 disassembly

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

4. Upgrading to MMU2S

Manual changelog MMU1-MMU2S

Original Prusa i3 MK2 MMU1 to MK2.5S MMU2S

5 chapters

Moderate

Upgrade your Original Prusa i3 MK2 to MK2.5 MMU2S

Introduction

Original Prusa i3 MK3/MK2.5 to MMU2 v1.01

1 chapter

Assemble the Original Prusa MMU2S

1. Introduction

2A. MK3S+ extruder disassembly

2B. MK3S/MK2.5S extruder disassembly

2C. MK3/MK2.5 extruder disassembly

3A. MK3S+ extruder upgrade

3B. MK3S/MK2.5S extruder upgrade

3C. MK3/MK2.5 extruder upgrade to MK3S/MK2.5S

4. Idler body assembly

5. Pulley body assembly

6. Electronics and MMU2S unit assembly

7. Spool holder and buffer assembly

8. Preflight check & Calibration

9. First flight

Manual changelog MMU2S

Original Prusa i3 to MMU2S upgrade

14 chapters

Moderate

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34 replies

INDX #nozzlegate follow up & communications

Aug 21, 2026, 3:52:49 PM
368 replies

Original Prusa MMU2S support

Firmware & Downloads

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PrusaSlicer 2.9.6

August 14, 2026

Handbook 1.2

November 16, 2021