Prusa MK3s Filament sensor cover - 1.75mm Bowden press fit
thingiverse
Modification of the filament sensor (fs) cover allows for a straightforward press fit of a bowden tube, preventing sharp bends in the filament at the extruder entry hole. To accomplish this, no additional hardware or modifications are necessary; simply remove the single screw holding the original FS cover in place and replace it with the new cover. Due to tolerances and variations in outer diameter among different types of bowden tubes, yours may not fit snugly enough. A Fusion 360 file is provided for making adjustments. Alternatively, if you're not familiar with Fusion or prefer not to modify the file, applying some electrical tape around the bowden tube should suffice.
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