Photos of placing magnets in my big wind turbine rotors. There are 32 magnets on each disk. They are 70 x 30 x 10 mm N46 and cost me $4 each, this time last year direct from China.
Click on a photo to get a better view and more text about it.
The system works but the magnets tend to bite off a bit from the wedge so a better material would be worth trying. I had a better experience using an aluminium wedge on the second rotor.
See this video for more stuff about magnets and handling them (6 minutes in for Dan’s talk).
See also Jay in this video (some French language) for how to handle the magnet templates.