PD68 wrote:
ImA4Wheelr wrote:Build one of these and you won’t look back:
I swear I’ve read that thread 20 times over the last couple years, and I just don’t get it. Also it’s clear I need a reliable meter to tune in the new shunt, which I do not have.
I used a bench top variable power supply to make mine. I don't know how accurate the meters on it are, but it's all I have to go by. I just cut a 6" 14ga wire with an inch of insulation stripped from each end. I then put the wire in the power supply and then ran 10amps of current through the wire. I then probed for the spots that gave me 10mV. I then soldered wires to spots just a tad wider than those spots because the solder reduces resistance a tad. You can then tune the wire be either notching the wire or adding solder. You have to let the wire cool from soldering before testing it for accuracy.