Thread tape or sealant improves the marriage between the male and female threads within the hinge so the screw is less likely to come loose. Using tape is very fiddly, so it’s usually easier to use sealant which can be applied to the screw’s threads. stop degree could prevent the hinges from touching your lens and avoid the scratch; The mainly installing way is by heat melting; I put a paper clip through the screw hole of the part that had the spring hinge. Then I hooked the other end of the paper clip to the pin of a door hinge (had to open the paper a bit for it to fit over.

Spring hinges are more difficult to repair compared to standard hinges if they get damaged or broken. About: So many things to learn and make, so little time! I like things that are cool, useful, efficient, well crafted. Due to poor mechanical design, the spring hinge of my glasses broke twice. Once while still under warranty, and it got exchanged for free. Then once again now, but the warranty is over. Being self-darkening prescription glasses, they were not cheap. Gosh...

What are glasses hinges?

To prevent scratches, it’s best to keep your glasses in a protective hard-case when you aren’t wearing them. This prolongs the life of your frame and lenses and minimises the chances of scratches.

If the arms fit too loosely at your temples: Again, only for metal frames, use the same method used to loosen arms, except apply gentle inward pressure on the corner part of the frames located between the arm hinge and the lens. Repeat on the other side to tighten the fit around your temples.This hinge was chosen because, as you can see with my wife's frames, the 5/8" width is a good fit even though I had to cut the length down quite a bit. When you think about prescription eyeglasses , what’s the first thing to come to mind? Is it their color? Maybe their shape? How about their construction? While considering aesthetics of your eyeglasses is important, it’s equally crucial to pay attention to how they’re put together. Spring hinges, also known as flex hinges, contain a small spring that lets the arms of glasses extend further than other types of hinges do. With traditional barrel hinges, the movement is usually limited to 90°. With spring hinges, however, you can move the arms out a lot further.