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My MMU3 mount broken  

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Andreas Jensen
(@andreas-jensen)
Utenti
My MMU3 mount broken

Hi folkes, i just bought this MMU i3 priusa USED and there are lots of issues with it. One of them is that the MMU is broken in it mounts an also attatched wrong. Does anyone know if there is a printable mount? I'm also missing parts for the MMU, can you help me here?

Postato : 16/12/2025 10:38 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: My MMU3 mount broken

I think that may be MMU2
https://www.printables.com/model/57219-mmu2s-multi-material-upgrade-printable-parts

here are the files for MMU3 
https://www.printables.com/model/531604-mmu3-printable-parts

one of the biggest issues with MMU2 or mmu3, is friction in the PTFE Tubes
I Used 2.5mm ID with My MMU2, and moved up to 3mm ID with my MMU3 for all tubes, except the short tube inside the heatsink of the extruder, which should be 1.85mm ID

whether you have an MMU2, or an MMU3, if you are using it with a Mk3S or Mk3S+ use the MMU3 version of the filament sensor chimney.

If you don't have a PD Board (Power distribution board) It's worth getting one and the new power / data cable, because it will work with either MMU2 or MMU3 and will remove potential power issues.
https://www.prusa3d.com/product/mmu-pd-board-addon/
Cable for Mk3S/S+
https://www.prusa3d.com/product/mmu3-printer-cable-einsy/
Mk 4 cable is different

regards Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility.Location Halifax UK

Postato : 17/12/2025 2:37 am
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