Dry Box Filament Pass through
thingiverse
Use 2x4mm PTFE. 3 different sized center holes (printed hole is smaller) for a tight fit. My printer spits the 4.35 hole out very tight (have to twist it back and forth to get it in which Is what I wanted). Yours may be different. Use O ring (10mm ID, 1.5mm thick or thicker) on base of bolt to seal to box I made the threads larger than the one I originally used so the walls would be thicker, the others snapped too easy. These will still snap if you wrench them but not hand tight.
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