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MMU3 Compatibility

MMU2S unit with firmware 3.0.0 and up - Compatible. Original Prusa MK3.5/S MMU3 unit - Fully compatible*. All the required parts are included in the MMU3 MK3.5 package. MMU2S unit…

Original Prusa MMU2S - Firmware & Downloads

Original Prusa MMU2S - Firmware & Downloads | Prusa Knowledge Base English Login Prusa Research as 3D printers Materials Parts & Accessories Software 3D Models Applications Community…

Controller board (MMU2S) - Glossary

Controller board (MMU2S) - Glossary | Prusa Knowledge Base English Login Prusa Research as 3D printers Materials Parts & Accessories Software 3D Models Applications Community Help…

Assembly manuals - Original Prusa MMU2S

Assembly manuals - Original Prusa MMU2S | Prusa Knowledge Base English Login Prusa Research as 3D printers Materials Parts & Accessories Software 3D Models Applications Community…

List of parts for MMU2S to MMU3 upgrades

List of parts for MMU2S to MMU3 upgrades | Prusa Knowledge Base English Login Prusa Research as 3D printers Materials Parts & Accessories Software 3D Models Applications Community…

Controller board (MMU2S) - Glossary

Controller board (MMU2S) - Glossary | Prusa Knowledge Base English Login Prusa Research as 3D printers Materials Parts & Accessories Software 3D Models Applications Community Help…

Original Prusa i3 to MMU2S upgrade

Original Prusa i3 to MMU2S upgrade - Original Prusa MMU2S | Prusa Knowledge Base English Login Prusa Research as 3D printers Materials Parts & Accessories Software 3D Models Applications…

Hinged lid with MMU2S

Hinged lid with MMU2S | Prusa Knowledge Base English Login Prusa Research as 3D printers Materials Parts & Accessories Software 3D Models Applications Community Help Academy Blog…

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

Original Prusa i3 MK3/MK2.5 to MMU2 v1.01 - Original Prusa MMU2S | Prusa Knowledge Base English Login Prusa Research as 3D printers Materials Parts & Accessories Software 3D Models…

MMU2S LEDs meaning

As a last resort, remove the selector motor by unscrewing the 3 screws holding it and push the smooth rods out with an Allen key. You can then easily remove any debris stuck in…

MMU2S Setup and Inspection

SuperFINDA sensor calibration The SuperFINDA is the second sensor on the MMU2S. Its position is crucial to ensure smooth operation. Its assembly can also collect debris or strings…

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Search Original Prusa MMU2S Original Prusa i3 MK2 MMU1 to MK2.5S MMU2S Original Prusa i3 to MMU2S upgrade General troubleshooting MMU1 Troubleshooting > Printer troubleshooting…

2. MMU2S Disassembly (UPG)

The MMU2S kit alone will miss some of the important components for the MMU3 such as the Idler coupler, ferromagnetic ball for the selector, magnet for the selector, 2.5mm ID PTFE…

Table of Contents

Note, that each end of the tube is different. One end of the tube has an outer chamfer. This end must be inside the hotend. The other side has an inner chamfer. This conical shape…

Original Prusa i3 MK2 MMU1 to MK2.5S MMU2S

Original Prusa i3 MK2 MMU1 to MK2.5S MMU2S | Prusa Knowledge Base English Login Prusa Research as 3D printers Materials Parts & Accessories Software 3D Models Applications Community…

Table of Contents

Note, that each end of the tube is different. One end of the tube has an outer chamfer. This end must be inside the hotend. The other side has an inner chamfer. This conical shape…

Manual changelog MMU1-MMU2S

Manual changelog MMU1-MMU2S | Prusa Knowledge Base English Login Prusa Research as 3D printers Materials Parts & Accessories Software 3D Models Applications Community Help Academy…

Original Prusa MMU2S Changelog

Original Prusa MMU2S Changelog | Prusa Knowledge Base English Login Prusa Research as 3D printers Materials Parts & Accessories Software 3D Models Applications Community Help Academy…

Controller board (MMU2S) - Glossary

To flash the firmware onto your printer, you need: Computer running Windows,… Read the article Firmware updating (MMU2S) Firmware updating (MMU2S) When updating from the 1.0.6…

IR filament sensor calibration (MMU3, MMU2S)

Make sure the Bondtech gear is aligned. On MMU2S, it might be necessary to cut a small dent (roughly 0.5 mm) at the top of the lever with an Exacto knife. Do not remove more than…

Table of Contents

STEP 27 MMU2S unit assembly (part 1) Turn the pulley-body side without motors towards you. Push the bearing in. Make sure it is aligned with the pulley-body. If the bearing can't…

1. Introduction

Introduction Preparing MMU1 to MMU2S upgrade kit Before you do anything!!! We are here for you! 2. MMU1 disassembly 3. Upgrading to MK2/S and MK2.5S 4. Upgrading to MMU2S Manual…

Table of Contents

STEP 27 MMU2S unit assembly (part 1) Turn the pulley-body side without motors towards you. Push the bearing in. Make sure it is aligned with the pulley-body. If the bearing can't…

ColorPrint with the MMU

Printing with more than 5 colors at once with the MMU2S (scenario 3) Let's say that you have a multi-material print with all 5 filaments already in use. However, you wish to use…

1. Introduction

MMU2S guide is unfortunately the most complicated one, in which you have to choose chapters to be used according to which printer you are about to upgrade :) Reply Show older comments…

Table of Contents

Note, that each end of the tube is different. One end of the tube has an outer chamfer. This end must be inside the hotend. The other side has an inner chamfer. This conical shape…

Glossary MMU2S

Tension-screws - Two spring-tensioned screws applying pressure between pulley-body and idler-body. Blade - Inside the selector, cutting potential strings left in selector upon…