What is a filament dryer?
A filament dryer is a box with heater, fan and thermometer. Removes moisture from filament, which causes cracking and poor print quality.
Why dry
Filaments are hygroscopic - absorb moisture from air. Wet filament: crackles when printing, poor layer adhesion, porous prints. Nylon, PC, TPU absorb moisture in hours. PLA and PETG in days/weeks.
How long to dry
- PLA: 4-6 h at 50 °C
- PETG: 4-8 h at 65 °C
- ABS/ASA: 6-8 h at 70 °C
- Nylon/PC: 8-12 h at 80 °C
- TPU: 4-6 h at 50 °C
Models
Popular: Creality Space Pi Plus, Sunlu S2, Eibos Cyclopes, Polymaker PolyDryer.
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