Sunglasses Repair Redux

After the hinge repair described there, those old sunglasses have been working fine and I use them regularly. The screw recently worked its Loctite loose and was held in largely by blind faith.

It’s obvious why:

Sunglass hinge screw - loose

Sunglass hinge screw - loose

A tiny dab of JB KWIK should solve that problem for the foreseeable future:

Sunglass hinge screw - epoxy

Sunglass hinge screw - epoxy

In the highly unlikely event I must remove that screw, I’ll just refer to this picture and mill the epoxy out.

  1. #1 by John Rehwinkel on 2010-11-29 - 12:05

    That is an amazingly neat dab of epoxy. What did you use to apply it, a toothpick and a steady hand?

    • #2 by Ed on 2010-11-29 - 12:27

      Exactly: caught up a dot of goo on a toothpick, watched in the microscope, and managed to not make a mess of it. I’ve learned that a pile of epoxy will flow to fill the edges of a hole, so I heroically resisted the urge to smush it around and just watched while it slumped into place.

      Helped that it was a low-caffeine sort of day, too…

      Makes that blob glomming the brass angle bracket onto the frame look downright crude, though, doesn’t it?

  2. #3 by Kuba Ober on 2013-06-26 - 18:52

    I know this was metal, but for the future remember that threadlockers have this tremendous delayed-destruction effect on many plastics. They appear to do nothing untoward, then you load the thing and it shatters. Sometimes it takes months for the effect to manifest itself.

    • #4 by Ed on 2013-06-26 - 18:58

      delayed-destruction effect on many plastics

      Been there, done that, alas.

      It’s particularly vicious on acrylic: a few minutes later, you’ve got a pile of pieces neatly separated along all their (previous) stress lines.

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