IMPORTANT: Due to some complaints it seems that is must explain HOW to handle Filament Properly.
1) Store ur unsealed/ open filament ideally in a sealable bad with silicagel or other hydrophilic substances.
2) DO NOT EVER LET YOUR FILAMENT UNTANGLE!!!!!! This can and mostly will lead to knots which WILL CAUSE ur pinrt to fail!
Thus, after useage tighten ur filament and fix the end to a side!
my Anet A8 Filament Holder. printed with PLA 20% infill (200°C)