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msg

wrote:

I can reasonably solder electronics although I get an occasional cold
solder joint. I have this pair of glasses I didn't wear much which
cracked near the temple joint. (The temple cracked). The repair shops
ask too much, compared to what I paid for the glasses. I tried online
to find temples, to no luck. So I'm considering soldering it. My
uncle (a retired EE) told me it would never hold. Part of the problem
is it cracked very near the screw joint. and so would suffer a lot
more torque than if it was further back. Any tips?

Consider brazing the joint; you may be able to find a hobbyist
minitorch that uses tiny propane and oxygen cylinders -- Radio Shack
used to sell these in the States.

FWIW, I have also made repairs on tiny objects using very low
currents with a wire-feed welder; build up the repair and grind
to final shape.

Michael