Ender-3 S1 Spool Holder Parallel Wall Mount

I wanted a parallel wall mounted spool holder, and I like the original cross bar that comes with the mount on the Ender 3 S1, with its double set of roller bearings. The receptacle on this mount allows insertion of the original Creality roller bar, making the filament feed much more reliable. The mounting holes are sized for number 10 countersunk screws, and the roller ball will only insert from one side.
Note: I have included the original Autodesk file (via Fusion 360) so you can edit the design to your liking. Don't remove the bevels on the cutout, as they provide lateral rigidity.
Also note that the fit of the original bar is on the tight side, to evenly distribute the weight. Depending on your slicer's wall setting, you may need to do some post print trimming.