5 kg spool filament feeder
thingiverse
This is a filament feed system designed for use with large 5 kg spool filaments, but it also works perfectly well with standard 1 kg spools of filament. I recommend printing the axle with extra-thick walls, ideally at least 1mm thick, to ensure maximum durability. Additionally, please make sure to randomize the Z-axis start point so that the dots are not aligned in a straight line, which could otherwise hinder its performance.
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