Found 2 3D-models for “friction reduction” across many websites

#spool holder#filament guide#TPU#filament#Extruder RepRap-Fab#Noise Reduction#noise#big booster#compliant mechanism#friction
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Filament guide for extruders cold end

Filament guide for extruders cold end

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Cardboard Spool Silencer / Friction Reducer

Cardboard Spool Silencer / Friction Reducer

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