Filament feeding system
thingiverse
Here is my system for feeding filament that connects a dry box to filament sensors on a printer using Bowden fittings. Be cautious when keeping PTFE tubes short, as I plan to switch to Capricorn PTFE soon, which I've heard has an even smoother surface than regular PTFE. You can disregard the tabs. Originally designed for spring loading, I tightened up the holes that the copper pipe goes through instead, creating a friction fit. Depending on printer tolerances, you may need to sand the inside of these holes slightly. This system utilizes two F608ZZ bearings with their shoulders exposed along with M4 nuts and bolts.
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