This is an interchangeable spool holder made in Tinkercad. I will soon make addons to this model like different sizes for different spools and mounts. This model uses 608 bearings for the rollers, but you can also print your own bearings. The rollers also include a place to line up your spool recommend using 5% Gyroid infill and setting seams to random for the rollers. This took me 8 hours to 3d print, but it was worth it.

picture of putting it together: