This is a remix from the original great spool holder design (https://www.thingiverse.com/thing:1546811).
The things I changed are:
- Make it use 608 bearing.
- Shorter the M8 screw/rod.
- Make the core, as one part instead of two.
You will need the following extra parts:
- 2 x 608 bearings
- 1 x 120 long M8 screw or 1 x 130 threaded rod
- 1 or 2 M8 nuts depending on if you are using a screw or threaded rod.
I printed them in white PETG.
The Fusion360 file is also included if you want to modify the screw length.