Friday, December 6, 2013

Bird Bath 3 - more data and start of Windmill Build

After some basic measurements on the Nic-chrome wire, that I harvested from a hair curler, I found:
  • Wire is 36 AWG (5 mil measured by micrometer)
  • Length - 76cm
  • Resistance 74.2 Ohm for entire length
I did some further measurements to determine resistance related to length of wire as well as current draw per length of wire (with stepper motor spinning at 1630 RPM):



1630 RPM
cmOhmmA
1010244.0
2020180.0
3030145.5
4040124.0
5050108.5
606096.0
706986.0 
Pictures in the morning (some fun camera issues).