I need a production-ready 3D model of a 0 gauge earring that can go straight to the slicer and print reliably in plastic. The piece is small—between 9.5 mm and 11 mm overall—yet it has to pack a lot of engineering inside: • A hollow main body whose exterior mirrors the look of my hand-sketched earring profile. • A screw-on end cap that can be fully removed and re-attached. Once closed, that cap must also trap a small internal component and keep it from rattling. • Threads, clearances, and tolerances modeled for consumer-level FDM or resin printers so the cap seats smoothly without excess play. I already have sketches that illustrate the shape, the cap interface, and the component it must retain; I’ll share those the moment we kick off. What I need from you is a high-precision, watertight STL with all mating surfaces, threads, and interior volumes accurately defined and print-ready. If your CAD package generates its own native file, feel free to pass that along too—STL is my required output, but extra formats never hurt. If you’ve designed small mechanical jewelry pieces before—and know how to balance aesthetic curves with practical print tolerances—this should be a quick but satisfying challenge.