Spool holder for a 1HE rack panel

thingiverse

To create a functional spool holder within a network rack, consider this straightforward approach. Start by sliding the spool holder onto a standard 1HE rack panel. Once in place, press down on the ball bearing (16003 2RS) and then slide in the "spulenwelle." With this setup, you'll be able to accommodate larger spools if needed. This design has been tested successfully with spools ranging from 300 grams up to a substantial 2600 grams.