Hi Mario,
That is okay and I accept it but I am afraid the problem is that I did not know (and still do not know) what Matt exactly meant with this sentence he wrote to shylo: "Your always going to have drag at low RPM's because of the attraction of Permanent magnet to the metal."
I have no intension of nit-picking or hairsplitting, my understanding on ferromagnetic materials is they are attracted by permanent magnets in the function of their magnetic permeability, (among other factors of course), so a core with a high permeability is attracted with a greater force than another core with a low permeability (provided other conditions are identical or comparable).
And then Matt continued his above quoted sentence with this: "You can rectify this 2 ways. Use a material that has low attraction but high permeability or" so this is what is a controversy for me and this is why I asked Matt.
I understand and accept Matt's further answers he wrote to me in his 2nd paragraph, I learnt from it.
Greetings,
Gyula
That is okay and I accept it but I am afraid the problem is that I did not know (and still do not know) what Matt exactly meant with this sentence he wrote to shylo: "Your always going to have drag at low RPM's because of the attraction of Permanent magnet to the metal."
I have no intension of nit-picking or hairsplitting, my understanding on ferromagnetic materials is they are attracted by permanent magnets in the function of their magnetic permeability, (among other factors of course), so a core with a high permeability is attracted with a greater force than another core with a low permeability (provided other conditions are identical or comparable).
And then Matt continued his above quoted sentence with this: "You can rectify this 2 ways. Use a material that has low attraction but high permeability or" so this is what is a controversy for me and this is why I asked Matt.
I understand and accept Matt's further answers he wrote to me in his 2nd paragraph, I learnt from it.
Greetings,
Gyula
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