Hi guys
My idea of making my windmill is to have the 2 rotors mount on a common shaft. I want to make the rotors in 2 parts.
A thick ring thats just slightly wider than the magnets, with about 4 points for fastening to the 2nd part which is a hub that slides onto the common shaft and tightens with grub screws? The shaft can be keyed as well to keep the rotors alligned.
My concern is the effect of eddy currents on the shaft?
Im assuming that since it is spinning with the magnet rings, there should not be any eddy currents on the shaft or the hubs.
Am i right in my assumption?
If there will be eddy currents on the shaft, can it be minimized by increasing the size of the ring, by making the inner diameter of the ring smaller? This will increase the amount of steel that can capture the stray magnetic lines away from the shaft?
Any comments will be much appreciated.
Roly SA
