Akshay Gupta developed a 3d printing filament dehumidifier you can build yourself. It is made from common polycarbonate sheets and uses an Arduino, a cross flow fan, silica gel desiccant, sensors and a 100W heater to maintain a specific temperature and humidity in the chamber.
As you can see it can hold many spools of filament:
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Looks like the great solution to keep your filament dry.
Detailed build guide:
http://www.instructables.com/id/Filament-Dehumidifier/?ALLSTEPS
As you can see it can hold many spools of filament:
Looks like the great solution to keep your filament dry.
Detailed build guide:
http://www.instructables.com/id/Filament-Dehumidifier/?ALLSTEPS