There was a couple remixes of this Filament Spool holder I used for a particular job and I've combined some of those remixes in to the best most useful way i've found.
The first profile is the smaller original width
The second profile is extended width for wider spools
The third profile is also extended width but with option to run x6 680ZZ bearings (3 on each side) for more smoother option and spool compatibility.