Parametric Enclosed Drop In Spool Holder (v2)

While inspired by the Spannerhands spool system, I wanted something a little different so I designed my own enclosed spool holder system (https://www.thingiverse.com/thing:2872673). Then I designed this!

Just like my previous design, I designed this to be parametric, but this one allows the ability to just drop a spool (no spool core needed). This includes 4 separate mounting positions for the bearings, but you can probably get away with two on each side.

I have included two different way