It's a simply attachment of a jewelery loupe to your glasses.
Print the ring 1x, the clip 3x.
First click the ring on the magnifier.
Then slip the clips on the ring so that they fit to the shape of your glasses frame. Glue the three clips to the ring.
Note: If you have trouble that the small clips don't adhere to your print bed, use the clip with integrated brim and cut the brim afterwards.
magnifier_clip.stl | 5.7KB | |
magnifier_clip_withbrim.stl | 13.0KB | |
magnifier_ring.stl | 145.4KB |