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Build your own 3d printer filament factory (Filament Extruder)
I'm currently in the process of making this, but when testing it I've run into a problem. The melted pellets at the end, where they are about to be extruded, harden after use, around the auger bit. This makes it impossible to spin the auger bit until I've waited for it to heat up again. Anyone know how to avoid this from happening?