It’s exactly what it sounds like - it’s an optional add-on that allows your single-extruder printer to print with up to 5 colors (materials) at the same time. The MMU3 contains five filament insertion points. Load the five colors of your choice, slice the object with MMU3 profile in PrusaSlicer and start the print. The system automatically selects filament using the selector, loads it into the extruder and the printer starts printing. When it’s time to change the color or material, it also happens automatically.

Every time you switch filaments, you need to purge the previous material from the nozzle to prevent cross-contamination. There are various ways to do it and the MMU3 uses an efficient “wipe tower” - it’s a compact, partially hollow block next to the printed object where the “old” filament is purged and the pressure in the nozzle is stabilized. And we’re offering more ways how to save filament and reduce plastic waste - PrusaSlicer gives you options for “wipe into infill” (the printed object’s infill is used as a wipe tower) or you can use “wipe into object” where another object is used as a wipe tower - it will be very colorful but if you, e.g., need a functional part or you will paint it later, it’s a great way to reduce plastic waste to a minimum.

We will share more info about MMU3 in a couple of weeks when you will be able to order it from our e-shop. Meanwhile, you can set up the "Notify me when available" on this page. We’ll start shipping the MMU3 in June 2023.