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Original Prusa MMU2S

Original Prusa MMU2S support

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PrusaSlicer

Original Prusa MMU2S support

Firmware & Downloads

PrusaSlicer 2.9.0

January 31, 2025

Useful links

Firmware & Downloads
MMU2S Community Forum
MMU2S Printable Parts
MMU2S Spare Parts
MK3S with MMU2S 360 Viewer
MK3S+ with MMU2S 360 Viewer
Sample G-codes

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

Upgrade your Original Prusa i3 MK2 to MK2.5 MMU2S

Assemble the Original Prusa MMU2S

Community posts

Belt Tension Adjustment

33 minutes ago
2 replies

Core One giant let down from mk4s+. VFAs, resonance sounds, pause/resume bug

40 minutes ago
3 replies

default PETG profile sticks to build plate

4 hours ago
8 replies

VFA Artifacts on X+Y Straight Edges

6 hours ago
72 replies

6 hours ago
50 replies

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

Introduction

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

1 chapter

guideCategory-difficulty-unknown

1. Introduction

2A. MK3S+ extruder disassembly

2C. MK3/MK2.5 extruder disassembly

3B. MK3S/MK2.5S extruder upgrade

4. Idler body assembly

6. Electronics and MMU2S unit assembly

8. Preflight check & Calibration

Manual changelog MMU2S

Original Prusa i3 to MMU2S upgrade

14 chapters

Moderate