A little pass trough for the Creality drybox to prevent the teflon feed tube to slip into the box. It only takes 30cm of filament and 5 minutes to print and can prevent failed prints because the filament got blocked on the spool.
Designed in tinkercad by me: https://www.tinkercad.com/things/0AnSH8Gukwe-passtrough-for-cr-drybox