Hi everyone, I am attempting to build a switch using analog panel (for example ammeter - ) and two pins made of silver wire. The arm of analog panel (another silver wire glued to it) is used to short those two pins when let say 20 amps has reached. My problem is the alignment of those two pins to ensure that both pins will get equal contact. I will appreciate brainstorming on it. Should I just let vendor design and manufacture it? Can I build this myself? Is this switch concept ineffective (arm and two pins). Note that wire on arm is thin to minimize weight.