About this 3D model

This is a mockup of the original spool holder that comes with the Ender 3 and Ender 3 Pro which uses the nut to fasten it onto the filament holder frame, it is designed for use with filament spools of different sizes including the small ones which don't have a smooth ID up to approx 2.7". Two 608srs bearings are needed for this print and the original filament spool holder nut is also needed, that file is not icluded, I have not designed it yet. If you do not use Ultimaker Cura for a slicer and don't put a support blocker in, I recommend using an exacto knife to cut away the support from the opposite side of the axle. It is quite difficult to pull the support apart although the final result is amazing.