3 part press-fit lazy susan turntable using standard 6mm airsoft BBs as the bearings. This rolls very smoothly, but make sure to fill the entire bearing housing with the maximum number of BBs that will fit (this is scaled to allow for appropriate tolerances between BBS when filled to max capacity.)
4 files attached:
1 - Full Assembly STL -- not for printing, but to show assembly
2 - Turntable - with pins that fit into the holes of the top assembly
3 - Top - with appropriate tolerances for a press fit into the bottom assembly
4 - Bottom - with press-fit tabs for locking into Top assembly
Place the bottom on a solid level surface, align the top and press firmly downwards and this should snap together easily.