Filament loads fine, then first print fails, filament wispy?
 
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Filament loads fine, then first print fails, filament wispy?  

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daniel.o10
(@daniel-o10)
Active Member
Filament loads fine, then first print fails, filament wispy?

When I load my PLA filament it comes out just fine, but as soon as I pull away the extruded filament, it becomes all wispy, almost like spiderweb. Then the first print I do, whether its just a first layer cailbration or an actual print, the filament stops extruding.

I don't think it's the quality of the PLA as I was using this same PLA earlier this year and it printed just fine.

I've replaced the pfte tube and it takes the filament perfectly.

I've dissassembled the hot end, put a new nozzle on, put a new heatbreak on, ensured that the heatbreak and the nozzle were on tight and touching in the heat block.

The tension springs, as far as I can tell, are at the right setting based on what I've read on line.

When I unload the filament and stick an acupuncture needle up through the nozzle, there isn't any blockage.

Any idea what's causing this?

Posted : 28/08/2018 3:27 am
daniel.o10
(@daniel-o10)
Active Member
Topic starter answered:
Re: Filament loads fine, then first print fails, filament wispy?

UPDATE: So after troubleshooting everything I could possibly think of, I tried the most intuitive solution--getting new filament. The problem instantly went away. I suspect my vacuum bags for storing filament weren't air tight and the humidity ruined the PLA I was using. Weird how these sorts of problems always seem to have the simplest solutions....

Posted : 03/09/2018 2:24 am
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