First successfull print with MMU2S (and problems I had)
Hi,
finally I got my MMU2S upgrade for my MK3 and maybe I can help with the following post others to get also successful prints.
1. A big blob , IR sensor doesn't work, ….
I had also this problem. The solution was here to loosen the tension screw of the Extruder. I also checked the IR Sensor which worked well (LCD, menu, support menu, Sensors, …)
2. Loading filament
Not sure if others had the same experiance but cutting the Filament tip to a needle form was not the best for me. Special when loading the filament the first time it always get stuck somwhere in the Filament flow when the material changed eg.. from ptfe to the printed arts, or when it has to go to the slider. For me it is (at the Moment) the best to cut straight.
After printing the first time with the Filament the tip is more like a pencil and it works (Maybe we can use a pencil sharper 🙂
3. Tension of the two screws for the MMU2S.
I had them to tight. Following the instructions with only 1 mm below the Frame works.
4. Factory reset of the MMU2s
After all the Problems the Filament flow was working. But I had each time clicking and whatever when loading/unloading Filament, ...
Here the Problem was, that after all the tries to get a good Filament flow the MMU2S had stored the Settings of the lenght, … into the Memory and so it didn't work. After making a factory rest to the MMU2S loading unloading Filaments it now prints the second print without problems (about 300 Filament changes)
Hope this can help someone