PTFE Y Adapter for MMU3 and Side Holder
 
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PTFE Y Adapter for MMU3 and Side Holder  

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Steve
(@steve-36)
Member
PTFE Y Adapter for MMU3 and Side Holder

Has anyone tried using a PTFE Y Adapter on the Core One?  I use both my MMU3 and the single spool holder on the right side, and there has to be a better way to manage this besides swapping PTFE tubes at the extruder.  

Posted : 27/10/2025 1:22 am
k1mu
 k1mu
(@k1mu)
Estimable Member
RE: PTFE Y Adapter for MMU3 and Side Holder

https://www.printables.com/model/1370858-prusa-core-one-mmu3-y-splitter-festo-compatible-wi is probably what you're looking for.

Posted : 27/10/2025 2:21 pm
Steve
(@steve-36)
Member
Topic starter answered:
RE: PTFE Y Adapter for MMU3 and Side Holder

Thanks.  I found that a while ago and had an issue with the filament snagging on the festo connector. Looking at it again tho I don’t think I used the recommended print settings. I’ll try again. 

Posted : 27/10/2025 3:24 pm
Das-Werkshopz
(@das-werkshopz)
Active Member
RE: PTFE Y Adapter for MMU3 and Side Holder

Here is anothe spitter that might work for yoy.

https://www.printables.com/model/1369689-core-one-mmu3-y-splitter-using-e3d-collets-mountab

Posted : 28/10/2025 12:23 pm
Steve
(@steve-36)
Member
Topic starter answered:
RE: PTFE Y Adapter for MMU3 and Side Holder

That splitter looks nice, but it wouldn't load for me.  You could hear the filament dragging across the inside of the splitter and it would jam up on the out port.  I guess I'll just have to live with swapping the tubes.  I have no idea how others are getting these splitters to work.

Posted : 30/10/2025 2:54 am
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