Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:2689962.
This is a spool holder that I designed after trying to print TUSH https://www.thingiverse.com/thing:2047554 The bearings were to hard to fit so I tried to design something that you could print in small pieces and check if they fit and if not make adjustments and reprint without lots of material loss.
Also the holder is supposed to be printed on its side so you coud make it as wide as you want for extra stability.
For the whole thing you will need: 4 x 608 bearings 8 x Stand 2 x Holder
I printed the Holders in vase mode with 0.8mm wide perimeter, 0 bottom layers, 2mm brim and they turned ok.
The supplied Stand stl is with 7.7mm pins which fit fine with the bearings. The FreeCAD file is also there if you need to make any adjustments. You will need to change Stand.Pad004.Sketch005.Constraint2 to the radius of your desired pin size (it is 3.85*2=7.7mm now) and export an STL for the Stand.