In injection moulding, all manuals clearly state that you carefully have to dry the materials (usually ABS, nylon, PC,...) before starting to mould. Otherwise your models will be ruined. There is no reason why this should be different for 3D-printing with the same materials.
But you really should try it: cut off 50cm of nylon filament, leave that out in the open air for a day, or let it sit in water for an hour, and then feed that manually into the nozzle after removing the bowden tube. And compare that with a dry piece of filament fed through. You will clearly see the steaming, and hear and see the bubbling of the moist filament. Then inspect the extruded sausages under a microscope or under a big magnifying lense.
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kmanstudios 1,120
All filaments marked as being susceptible to moisture are such. They all need to be kept in a dry box or sealed bag with desiccant. There is not false info in those warnings. Too many people ignore them and then blame the printer or software.
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