I've managed to get a small DIY spot-welder going, but I'm finding that the metals I can successfully spot-weld (nichrome wire, and stainless steel wire, so far) cannot be soldered, which for one of the purposes I had in mind is rather a nuisance.
One possibility I've thought of is to electroplate copper onto the wire at the end where I want to solder it. I'll probably try this tomorrow, my time in Australia. If it's a bad idea, I'd like to know before I buy the CuSO4.
Also, any thoughts on what I might manage to both spot-weld and solder?
Sylvia.