Original Prusa MMU3 assembled unit (for MK4S/MK3.9S)

The Original Prusa MMU3 (Multi Material Upgrade) Assembled Unit brings true multi-material 3D printing to your Prusa MK4S or MK3.9S printer. Designed for seamless integration, the MMU3 allows you to load and print with up to five different filaments using a single nozzle—enabling vibrant multi-color models or combinations of various material properties in a single print.
This upgraded version features robust mechanical design, smarter filament handling, and fully reworked firmware for faster and more reliable filament changes. With simplified setup, autonomous operation, and full compatibility with PrusaSlicer’s multi-material painting tools, the MMU3 is ideal for functional prototypes, artistic models, and advanced hobby projects.

Key Features:

• Multi-Material Printing: Enables printing with up to five filaments simultaneously using a single nozzle, allowing for multi-color and multi-material prints.
• Efficient Filament Management: Smart nozzle cleaning method minimizes waste and ensures clean color transitions.
• User-Friendly Operation: Designed for seamless operation and intuitive troubleshooting, offering an excellent user experience.
• Advanced Firmware: Fine-tuned firmware delivers extra-fast filament changes, reducing total print time significantly.

Technical Specifications:

• Filament Compatibility: 1.75 mm filament
• Supported Materials: PLA, PETG, ABS, ASA, TPU, PC, Nylon, PP, PEEK, PEKK, PEI (Ultem), and composite materials
• Number of Filaments: Up to 5
• Filament Change Time: Approximately 35–45 seconds
• Nozzle Compatibility: Standard 0.4mm nozzle included; compatible with high-flow nozzles (note: standard nozzle recommended for optimal MMU3 performance)
• Firmware: Features seamless two-way communication between the MMU3 unit and the printer for smooth, reliable, and autonomous operation
• Software: Fully supported in PrusaSlicer with an easy multi-material painting tool

What's Included

• Original Prusa MMU3 assembled unit
• Prusa Nozzle brass 0.4mm
• All necessary components for installation on MK4S or MK3.9S printers