United StatesOriginal Prusa i3 MMU2S upgrade kit (for MK2.5 & MK3S/+)
Multi Material Upgrade 2S (MMU2S) is a brand new and improved version of the Multi Material Upgrade 2.0 - our unique multi-material addon, which enables your 3D printer to print with up to 5 colors at the same time. With an easier calibration process, a new filament sensor, and a standalone filament buffer, the MMU2S is more reliable than ever before.
This product is supplied as a kit - you must assemble it by yourself!
Please note, the assembly manual for the MMU2S upgrade kit is available in digital form only.
Note for MK3 users, you also need to purchase the MK3/S to MK3S+ upgrade kit with the MMU2S.
Multi Material Upgrade 2S (MMU2S) is a brand new and improved version of the Multi Material Upgrade 2.0. With an easier calibration process, a new filament sensor, and a standalone filament buffer, the MMU2S is more reliable than ever before.
WITH THE ORIGINAL PRUSA MMU2S WE ARE INTRODUCING:
NEW FILAMENT SENSOR
With the MMU2S we managed to sense not only that the filament is present, but that it actually reached the Bondtech gears. The filament sensor detects when the idler doors open a bit as the filament pushes Bondtechs apart. MMU2S is much more reliable regarding reloading filaments and the calibration process is also simplified.
FILAMENT BUFFER
The MMU2S comes with the filament buffer, a device designed to prevent filament tangling during loading / unloading process. The buffer allows you to position the five filament spools more freely and also saves valuable space on your desk.
THOROUGHLY TESTED
The testing process of the MMU2S took 2 months to finish, we used 20 printers and we printed 478 test blocks designed to test frequent switching of all five filaments. The total value of filament changes was nearly 600.000. More than 93 % of this prints were successfully completed.
Multi Material Upgrade 2S (MMU2S) is the second generation of our unique multi-material addon, which enables your Original Prusa i3 MK2.5S or MK3S/+ 3D printer to print with up to 5 filaments at the same time. Compared to MMU1, the new MMU2S went through a major revision, resulting in a simpler and more reliable design. The number of simultaneously supported filaments increased to a total of five, which enables the users to print even more complex and more colorful objects. MMU2S comes with a redesigned body and a new filament loading mechanism. Instead of the previous Bowden system, the new unit uses a direct-drive feed and a single PTFE tube to lead the selected filament to the extruder. The motorized selector head has a F.I.N.D.A filament sensor and a built-in blade, which prevents filament jamming. Read more about MMU2S in the announcement blog post at Prusaprinters.org and in this upgrade article.
SEE THE MMU2S IN ACTION!
Introducing MMU2S
How does MMU2S work?
MAIN FEATURES
The most significant new features of Original Prusa i3 MMU2S
COMPLETELY REDESIGNED
MMU2S has a brand new body with a rotating pulley barrel and a single extruder motor. Load up to 5 filaments and the selector head with a filament-cutting blade will take care of automatic loading and unloading.
FIVE MATERIALS
The second generation of our Multi Material Upgrade supports up to 5 filaments loaded at the same time. Apart from usual materials like ABS, PETG or PLA, the MMU2S also works great with soluble supports (BVOH or PVA).
DIRECT DRIVE
We have replaced the previous generation's Bowden system with a new direct-drive mechanism. This change is a major step forward in making the filament loading process more reliable and less prone to jamming.
F.I.N.D.A FILAMENT SENSOR
Meet F.I.N.D.A! It's essentialy a repurposed P.I.N.D.A probe, which now serves as a filament sensor. It works on a mechanical basis - the string of filament lifts a small stainless steel ball and F.I.N.D.A detects its proximity.
WIPE INTO INFILL / OBJECT
Our slicing software Slic3r PE comes with full MMU2S support and a set of useful features, such as Smart wipe tower, Wipe into infill or Wipe into object. These features help you save time and filament.
FILAMENT BUFFER INCLUDED
The MMU2S comes with the Filament Buffer, a device designed to prevent filament tangling during loading / unloading process. The buffer allows you to position the five filament spools more freely and also saves valuable space on your desk.
FULL FEATURES LIST
MULTI MATERIAL UPGRADE 2S FEATURES
COMPATIBILITY INFORMATION
Printer Compatibility: Material Compatibility:
Reviews
Friends! You, too, can print in living color! If this idea excites you, go for it - the extra time and attention will be richly rewarded. Be aware - I would concur in general that the MMU2S would be challenging for people new to 3D printing. The complexity of the MMU and the MKS3+ combination is really just this side of maintainable for a consumer device, and you should expect to spend some time tuning it, and be comfortable with troubleshooting in the face of ambiguous error conditions. There persist some bugs in the firmware that handles the MMU2 that aren't an issue in normal operation, but are an issue when you run into errors, and it is possible for a problem that would have been otherwise recoverable on MK3 to ruin a print. With all that said, once you do get everything dialed in (and the good folks at prusa support are a great help!), this is a stable product, an unbeatable value at $300, and still doesn't have an effective consumer-grade competitor available at any price.
The MMU2S is fully functional after a few settings but it is not beginner-friendly and you have to pay a lot of attention so that the change succeeds I have ungf. 40 hours needed until the MMU2S could work independently.
Unfortunately immature. Inexplicable problems spoil the printing fun. You can tell that Prusa does not use this printer regularly and has not really optimized the software. I understand why many uninstall the MMus again and all Ebay is full of it. The yet so good Prusa i3 makes only problems, so I advise at the current time dringlichst not to buy!
