Spool holder - 1kg, 56mm spools - for Trinus or small build plates

This is a robust spool holder using only two standard 608zz bearings as the metal parts, everything else can be 3D printed on printers with at least 120x120x120 build area.
I designed it for my Kodama Trinus to sit on the top of the enclosure. The rounded edge fits perfectly against the edge of the enclosure, providing steady alignment. I also created a feeder part that fits into the spool holder hole on the enclosure panel. Initially meant to be on the side, I moved that panel to the top to di