I am having difficulty soldering clip-on lever backs to
earrings I am making. Completely lose the spring action and the
earring falls off when worn. Any suggestions about methods that
will work, or type of clip-on back to use. Also, is my only choice
a Sparkie fusion welder? Thanks.
Hello Razine, You must solder on the base of the clip before
assembly. If the clips are already assembled when you get them, you
must disassemble them. To disassemble, spread the hinge point at the
base enough to pop out the lever back.
There are other fusion welders, but they are much more expensive. I
used to work at a company that had three or four. We used them for
attaching exclusively for earring posts. The machines had automatic
feeds for the earring posts. A operator could attach posts to several
earrings in a minute. We had machines built by two or three companies.
I think one of them was ABI.
Personally I find that soldered joints are more reliable. Fusion
joints must be aligned perfectly and the voltages must be set
differently for each metal. The failure rate is higher than I can
accept, for me that number is zero.
Timothy A. Hansen
TAH Handcrafted Jewelry