Moisture in the filament can significantly impair the print quality. Hygroscopic materials in particular, such as nylon, PETG or PVA, absorb moisture quickly and lead to poor adhesion, stringing and inconsistent extrusion. To counteract this problem, the iDryer offers an open, customizable solution for drying and storing filament.
The iDryer achieves drying temperatures of up to 90 °C and can accommodate up to four spools simultaneously. Individual modules can be operated with individual temperature settings. A humidity control system ensures that the filament remains under optimum conditions even after drying.
The system is based on Klipper, which enables automated control. For example, a printing process can be started directly after drying. Users can create their own macros and profiles to optimally prepare different materials.
The iDryer is a DIY project based on freely available construction plans and software. The frame can be produced using a 3D printer, while the electronic components are readily available. A PID controller regulates the temperature precisely to prevent overheating. An optional weighing system can also measure the remaining filament level and inform the user when it is empty.
The power consumption of the iDryer is around 40 W in drying mode and is reduced to 20 W in storage mode. The appliance can therefore be operated around the clock without incurring high energy costs. A do-it-yourself iDryer for four coils costs around 70 euros.
The list of parts required and the 3D models can be found on Thingiverse.
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