Thanks Mag Mike,
I think putting slotted copper disc might help us. I am designing the eddy current coupling. As per UKPete I am going to throw some run in Faraday (FEA tool)for standard silicon steel ring like M19 & see what happens on the torque level. But getting heat out is still a big...
I am designing magnetic coupling, I am creating torque on copper disc by putting magnets infront of it(Magnet rotor). As one of them spining other rotates because eddy current. If I put stronger magnets like N48 or higher, I am creating more torque on copper disc but at the same time i am...