Problems with PVA PrimaSelcet retraction  

Ebu Davud
Active Member

Hello guys

i need some help. i have problems with PVA filament. the thing just doesn´t want to retract. after printing the first layer it always stays in extruted until MMU error comes out. 

anyone with simiral problem?

Thanks in advance for any help

Posted : 30/06/2020 7:36 am
Prominent Member

Did you dry the PVA before/during use? Moist PVA will easily get grinded by the gears what will result in a blockage.

Posted : 30/06/2020 7:55 am
Ebu Davud
Active Member

Yes i did, its dry.

but most interesting thing is, when i use the function filament unload it retracts normaly. But when I start to print a model it just stays blocked in extruder after the first layer.

This post was modified 1 month ago by Ebu Davud
Posted : 30/06/2020 7:57 am
Ebu Davud
Active Member

I belive my problems lays in Filament Sensor. Sometimes when the filament(PVA) is inside the extruder it just shows 0, after i reset the printer.

When i tried to test the sensor with allen key or with some ends of  other filament (also tried it with PVA) it always works perfectlly. it always turn to 1. 

Posted : 30/06/2020 8:47 am

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