Here are some additional parts to build a parts carousel of my filament spool drum sorters.

A loose stack can be built from the parts. Alternatively, the stack can be stiffened up with an M10 threaded rod and some M10 nuts. The M10 threaded rod allows each tier to be lifted slightly to free up the spool underneath. This allows them to be rotated independently.

The drum sorter parts themselves can be found here:

https://www.printables.com/model/1024920-filament-spool-drum-sorter-with-click-interlock-me

Have Fun!