I prepared some different formats of this file. The 3dm(rhino) format is editable the (stl) one is ready to print. You can resize or scale the ring. for a better result this file contains 2 pieces for 3d print. I attached these formats: 3dm, stl, obj, fbx, cd, dwg. If you want another format of file I can send you. Metal weight:
4.020gr 18KY 3.360gr 14KY