Are these the clip on’s which come in two parts? If not, then
that is part of the problem . . . anything with a spring will not
hold tight if the spring is heated. . .
If, these are the two part clips, then make sure that the base
is standing on the little square (this is the smallest part) part
. . . the "ears (two of them with holes) should be pointing to
the right and the left of the back of the earring. (not easy to
solder, but you won’t get any tension when you attach the other
piece if it isn’t done this way.)
Without pictures, this is very difficult for me to explain!!! : (
On the fanned part, make sure that the middle is over the edge
and the parts that slip into holes are under the edge. If it is
still loose, bow the middle part a bit with round nose pliars.
(so the bit that goes over the edge is tighter against the edge.)
Hope this makes sense! It took me a while to figure out how to
do this, I had to study a picture in a Rio Grande catalog for a