Rotary tweezer organizer for all of my tweezers and miscellaneous tools. Uses a couple of bearings that I had in my parts drawers (1 each 22mm OD x 8mm ID x 7mm thick and 1 each 32mm OD x 12mm ID x 10mm thick bearings). There is nothing critical about the bearings, but I would suggest non-shielded or metal shielded to keep the rotating friction down. The models can be adjusted to accommodate any reasonably close bearing sizes. Suggest printing with gyroid infill and 3-5 walls in the bearing areas for strength. Adjust the infill density for a reasonable print time (too high a density will have you printing for days). This was designed in SolidWorks with STL files exported. Enjoy.