What is MMU3 Enclosed – Full Kit

Original Prusa MMU3 is an optional add‑on that enables printing with up to five filaments at once on a single nozzle. The Enclosed version for CORE One adds a specially modified top cover with a PTFE pass‑through so you keep the printer fully enclosed. This “Full Kit” contains everything you need, including the MMU3 unit itself and accessories.

Why choose the Enclosed version for CORE One

• The Enclosed kit includes a new top cover with a PTFE feed‑through, so installing MMU3 does not break the sealed chamber of the CORE One. The Lite variant is installed with the top panel removed; the Enclosed version keeps the printer fully closed.

Speed, reliability, and clean color transitions

• Optimized control enables fast filament swaps typically in 35–45 seconds, saving time on prints with thousands of changes.
• Smart nozzle purging minimizes color contamination and stores the purged material in a compact wipe tower.
• Improved firmware with two‑way communication between MMU3 and the printer ensures autonomous operation, detailed LCD reporting, and easy interventions.

Material savings and an open ecosystem

• PrusaSlicer offers wipe‑to‑infill and wipe‑to‑object to further reduce waste. The new Beam Interlocking improves mechanical bonding between colors.
• Spool holders accommodate a wide range of diameters including 2 kg spools; the system is open and allows custom holder modifications.

Smooth feeding and software

• Filament travels through the buffer into the MMU3 and then to the CORE One extruder with minimal resistance – reducing tangles and increasing reliability.
• Full support in PrusaSlicer and EasyPrint (browser/mobile slicing including smart painting).

Nozzle recommendations

For the best speed and low waste with MMU3 on the CORE One, we recommend using a standard (not high‑flow) nozzle. MMU3 kits include a standard quick‑swap 0.4mm nozzle.

What’s in the box (Full Kit)

• Prusa Nozzle brass 0.4 mm
• MMU electronics, MMU motor set
• Printed parts, extruder parts (mechanical and printed)
• SuperFINDA sensor, PTFE tubes, and more
• Fasteners
• 5× spool holder
• 6× buffer plates
• Cover parts
  Original Prusa CORE One is not included.

Key features:
Print with up to 5 filaments on a single nozzle for colorful or multi‑material models.
Enclosed integration for CORE One – modified top cover preserves a fully sealed chamber.
Fast filament changes (approx. 35–45 s) reduce overall print time.
Smart nozzle purging and a compact wipe tower for clean color transitions and less waste.
Material‑saving options: wipe‑to‑infill and wipe‑to‑object in PrusaSlicer.
Open spool holders – compatible even with large 2 kg spools.
Smooth feeding thanks to the buffer → MMU3 → extruder path with minimal resistance.
Two‑way communication MMU3 ↔ printer, automatic diagnostics, and LCD reporting.
Full support in PrusaSlicer and EasyPrint; Beam Interlocking for stronger color bonding.
Complete kit including 5× spool holders, 6× buffer plates, SuperFINDA, and mounting hardware.
Includes a 0.4mm brass nozzle; a standard (non‑high‑flow) nozzle is recommended for best results.