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[Closed] MMU the steel tubes is necessary?  

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gandhi.c
(@gandhi-c)
New Member
MMU the steel tubes is necessary?

Are the metal tubes inside the quick connectors really necessary?

I ask this question because I just installed the MMU in the prusa, but I feel that these metal tubes are too narrow for the filament, so you could work without them or they really are very important.

Thank you.

Posted : 12/01/2018 3:36 am
patryk.c2
(@patryk-c2)
Active Member
Re: MMU the steel tubes is necessary?

have a look at this post https://shop.prusa3d.com/forum/original-prusa-i3-mk2-multi-material-f26/monoplexer-and-multiplexer-redesigns-no-metal-part-t12801.html

Posted : 14/01/2018 11:08 pm
seth.g2
(@seth-g2)
Trusted Member
Re: MMU the steel tubes is necessary?

As far as i can tell they are not necessary. I've had tons of prints with higher quality without them.

Someone beat me to my own topic lol.

Posted : 14/01/2018 11:56 pm
supermerill
(@supermerill)
Eminent Member
Re: MMU the steel tubes is necessary?

If the steel tube is too narrow, the filament may not be able to enter the ptfe. My advice : get a better filament, because if that one don't have a (almost) regular 1.75mm diameter you will encounter many problems with it. The mmu isn't forgiving with bad filament.

Posted : 15/01/2018 7:03 pm
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