Filament Drybox Feeder with built-in filter

thingiverse

This is a straightforward filament feeder (1.75 mm) designed for use in a dry box that features an integrated dust filter. Holes are specifically engineered to accommodate m3 bolts, but I've opted for 16mm bolts instead; however, this won't make a difference as long as the nut can be securely fastened from the inside. I'm relying on thin packaging foam folded multiple times as my filter of choice.