Fillamentum ASA: extrusion keeps stopping  

New Member

I'm trying to print with Fillamentum ASA, and I'm having trouble with the hotend. It's not underextrusion - the filament extrudes fine for maybe half a layer (and adhesion is great) - but after about 30 seconds, the hotend stops extruding and asks me to unload and reload the filament. When I do, it runs for another 30 seconds, and then does the same thing.

I don't understand why this is occurring. Any ideas?

I'm extruding at 250C, which is right in the range that Fillamentum recommends.

Posted : 10/02/2019 7:38 pm
Noble Member

try turning off your filament sensor.

I have a Prusa,therefore I research....
Posted : 10/02/2019 7:47 pm
Trusted Member

I also would need some help with ASA, maybe related to David-s174's issue. While Prusament ASA Galaxy Black is ok, the Fillamentum ASA Traffic Yellow seems to be not so unproblematic. The default Slicer profile shows that Fillamentum needs 5 °C more (265 °C) than Prusament. On the other hand the package suggests 235-250 °C if I am not mistaken. What happens is that I see a non regular flow (grainy) at 260 and 265 °C and lots of debris in the extruder casing, so the bond tech is having trouble extruding it. The printer is an I§ with MMU2s and having no issues at all with PETG.

The output is more or less that sooner or later the layer adhesion fails and the print is ruined. Same print with Prusament turns out good (assumption, I should rather say, a similar print with Prusament prints fine). Any ideas?

Posted : 08/12/2019 7:36 am
Prominent Member

How hydroscopic is ASA? If your filament is absorbing moisture, that could cause grainy as it turns to steam.

Solution: Dry the filament per recommendations.

Posted : 08/12/2019 7:38 pm

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