Original Prusa MMU2S support

Original Prusa MMU2S support

Firmware & Downloads

Firmware bundles

PrusaSlicer 2.9.6

June 30, 2026

Changelog

Handbook 1.2

November 16, 2021

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

1. Introduction2. MMU1 disassembly3. Upgrading to MK2/S and MK2.5S4. Upgrading to MMU2SManual changelog MMU1-MMU2S

Original Prusa i3 MK2 MMU1 to MK2.5S MMU2S

5 chapters
Moderate
Begin assembly

Upgrade your Original Prusa i3 MK2 to MK2.5 MMU2S

Introduction

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

1 chapter
Begin assembly

Assemble the Original Prusa MMU2S

1. Introduction2A. MK3S+ extruder disassembly2B. MK3S/MK2.5S extruder disassembly2C. MK3/MK2.5 extruder disassembly3A. MK3S+ extruder upgrade3B. MK3S/MK2.5S extruder upgrade3C. MK3/MK2.5 extruder upgrade to MK3S/MK2.5S4. Idler body assembly5. Pulley body assembly6. Electronics and MMU2S unit assembly7. Spool holder and buffer assembly8. Preflight check & Calibration9. First flightManual changelog MMU2S

Original Prusa i3 to MMU2S upgrade

14 chapters
Moderate
Begin assembly

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