Multimaterial upgrade (MMU 2.0) has a lot of promise. Just keep in mind it’s not a plug-and-play polished technology. While it is capable of printing in five materials with crisp separation, it requires very specific settings for every material. Even different colors of the same brand behave differently. Now when you take a brand that has significant difference from the “generic” profile, be prepared to do some serious tuning.
Just take a look at some of the parameters involved in tuning for MMU:
First attempt to print Makergeeks PLA with regular PLA settings is a disaster. These tips confuse the sensor and cause the feed to fail. Hobbed gears grind the filament, and later when the feed is fixed manually, the grind mark gets stuck in the gears.
A lot of test prints tuning the parameters. Some changes seem to improve the tips, but it’s not consistent.
With the help of Chris Warkocki, a wizard of Prusa Community Forum, I’m making some progress. Getting better…
… and better.
Finally, it’s stable enough to print without manual intervention.
To be continued.