On Jan 1, 8:19*pm, wrote:
As part of another project, would like to take some High Current DC measurements.

I have a couple of multimeters ... but obviously not going to be any good for around 80-100A

Now going back to school physics lessons I could use a Shunt resistor ...http://www.societyofrobots.com/robot...?topic=13900.0

The issue will be obtaining a suitable shunt ... assuming I use a 1 ohm shunt, anybody made one of these ?
The WEB ref page:http://www3.zetatalk.com/docs/Electr...Made_Shunt_for...
details using 12guage copper wire .. based on 1.619 ohm per 1000'

Although maybe a resistance wire may be better *eg Nichrome around 10.58" for 1 ohm.
Welcome to any better ideas.

These shunts are very low resistance and made by the manufacturers to
very exact values. So you have no chance of making your own and
expecting accurate amps readings.
You will have a job to even determine the value of the internal
resistance of your meter and hence find out what value the shunt
should be.