Re: Is it worth it?
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"This enhanced version is much simpler than the original MMU, which makes it easier to use and less sensitive to the quality of filaments"
I would be willing to wager no one as of yet has gotten this unit to work reliable the same day they got it. From my experience the MMU1 worked right the first time after the upgrade was complete The filament statement is a bit misleading as its still unofficially stated that out of spec filament probably wont work. They don't say its not supported but its not supported. So good luck to you if you don't use fillamentum of Prusament. Before typing "I got X to work" keep reading.
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Despite the fact the MMU2 had and have a room for improvements, I was able to print two color example gecko the same day I assembled, installed and calibrated my MMU2. I used my already known filament and and not Prusament. Currently I'm working on a software improvement for multi material with real high temp difference and it will be released pretty soon.
It's perfectly fine to say that more than 50% of the MMU2 buyers experience issues. It's pretty complex to maintain and it takes time and understanding to make this unit work most of the time. But to say "...no one was able... " or "...it's not supported..." is just wrong.
Same here. I got a nice 3 colour sheep the first day (after I tightened the selector gear screws - oops). Very non-standard, but reliable filament.
There’s improvements to be made though. We need both sensors, and the hardware needs more constrained filament paths.