I have had my U1 for less than a week. So far I have had 2 prints completely fail because one of the filaments was tangled and stopped feeding in, but the U1 didn’t notice and kept printing the other colors just as if the previous color had worked… complete waste of the other filaments. Any idea if the U1 is supposed to have tangle detection so it could pause and notify us when a tangle occurs?
Otherwise what would it take to make a mod to detect tangles?
Yes, there is a setting that you can turn on and off. I forgot what it’s called. If I remember right, it measures the difference between extruder feed rate and autofeeder feed rate, and if difference is too big, it thinks filament is tangled or stuck somewhere in the filament path. This will trigger an error that would say so with instructions.
A tangle creates either grinding or excessive back-pressure, but the end-state is identical to an out-of-filament condition: the filament simply stops moving.