About this 3D model

PUBLIC SERVICE ANNOUNCEMENT: Don't Be An Idiot [like me]! So while my paper shredder was doing it's imitation of a jigsaw puzzle so I could fabricate a couple of retaining plates for it, I somehow managed to misplace (i.e. lose) one of the bushing bushings. No, that is not a typo. Each rod slides into a metal bushing, which in turn slides into another metal bushing that slides in to the metal plate. Yeah... right? Anyway... rather than let the shredder sit on my bench for a year until I can find the lost (ahem! I mean misplaced) bushing, I whipped one up in FreeCAD. It seems like it'll work fine. Meh... what do I know?