18K Gold Ring with 360° Rotating Top – Cyrus Cylinder Inspired

18K gold ring with a top that rotates 360°. Inspired by the Cyrus Cylinder, with engraved details on the shank and an onyx inlay. Modeled in MatrixGold and Rhino with a working rotation mechanism, ready for resin printing and casting.
mechanism ring casting matrixgold rhino-3d rotating-ring 18k-gold