Yet another filament filter
thingiverse
Filament filter - made with two chambers I. the bigger for dust cleaning II. smaller one for oil (in case of PLA for bowden extruders). Assembled with two M3 screws. For chambers use a cut of kitchen sponge "molytan". Place sponge pieces in top and bottom also, use thickness by 1-2mm bigger than part itself. If you dont want use M3 screws, use zip tie over whole assembly. There are grooves for 3.2mm zip ties. Even 2.5mm works good.
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