YAFS yet another spoolholder

Spool Holder for 10mm thread and 1000ZZ Bearings in openSCAD

i found this beautiful spoolholder https://www.thingiverse.com/thing:2070272 but since my available material
are 1000ZZ bearings and 10mm rods, and also purely, for learning purposes, i am trying to reproduce it in
openSCAD

i did it to be printed on a 3Dmodular Sclar XL premium, but failed miserably, had to let it print on a CR20 from a friend.... there it went without a glitch