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11.1.2 Moisture
This is the primary concern. Moist filament can cause inconsistent flow of material out of the print
head, as the moisture boils off and causes little bubbles in the stream of extruded plastic.
Different materials have different levels of sensitivity to moisture absorption.
Extremely sensitive and hydroscopic:
Nylon and nylon blends
Polycarbonate
Acrylic (PMMA)
Materials in this category MUST be returned to dry storage as soon as you are done printing. For best
results they should be stored in an actively-dried chamber.
Less sensitive:
PETG
ABS
PLA
Materials in this category can be handled more casually and are more tolerant of being left out in the
open for a few days.
Filament that is full of moisture will exhibit a “foamy” surface finish. Clear materials such as
polycarbonate or nylon will appear opaque.
11.1.3 Dust
Dust likes to stick to the outer surface of filament if it’s left out in the open. This dust then gets drawn
into the print head, and over time, can cause a partial clog. Symptoms will include poor or inconsistent
flow of material from the nozzle and weak parts.
Your F410 includes a built-in filament wiper in the extruder to reduce the amount of dust drawn into the
system. We still recommend keeping your printer and filament in a dust-free environment if possible.
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