Original Prusa MMU3 | Prusa Knowledge Base

Assemble the Original Prusa MMU3

Original Prusa MMU3 Assembly (includes upgrade from MMU2S)

15 chapters

Difficult

Original Prusa MK4S with MMU3 (assembled bundle) (1.0)

5 chapters

Moderate

Upgrade your MMU3 setup

Original Prusa MK3S+ MMU3 to MK4/MK3.9 MMU3 upgrade (1.0)

3 chapters

Moderate

Get started with MMU3

Multi-material slicing

MMU3 regular maintenance

Regular maintenance is recommended for your Original Prusa MMU3 upgrade. Refer to the images below to familiarize yourself with the names of each part of the MMU3 unit. Idler…

Shipping information

CORE One Conversion kit shipping table for new xLCD version Updated: May 5th, 2025 Batch number (kit) Estimated shipping from: 1 May 1. 2025 2 May 14. 2025 3 May…

Fix common issues

FINDA: Filament Stuck #04102 (MMU)

What happened? While the MMU unit was unloading a filament, the SuperFINDA sensor inside the selector stayed triggered/detecting a filament, while it shouldn’t. The superFINDA…

FINDA: Filament Stuck #04102 (MMU)

What happened? While the MMU unit was unloading a filament, the SuperFINDA sensor inside the selector stayed triggered/detecting a filament, while it shouldn’t. The superFINDA…