Originally posted by dllabarre
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Thanks Don for posting it
After several beers golfing today and then several beers at the ballgame, I managed to get out to the barn.
I swapped my SS 316L shaft out for an aluminum shaft and repeated my earlier tests.
My output voltage as measured with my meter dropped from 34.2 to 24.4 DC
AC dropped from 40.6 to 30.1
The interesting part was my first test showed a 1A jump in current draw when shorted. With the aluminum shaft it only dropped 0.34 A
So I bypassed the carbon brushes (which add resistance) and the drop was only 0.24 A
I then took my SS shaft and tested it with neo's. A small one on one end, and tried to pick the other up with the other end. Couldn't, but I could magnetically drag it around, suggesting the SS did conduct some magnetic flux.
So two points:
Avoid SS even if it's 316
The extra resistance of even the brushes did affect the performance.
Timm
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