Mag-swapping a JB with a roughcast A5 - where to buy?
- Thread starter UCSDBoy
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Clint 55
OH THE DOUBLE THICK GLAZE!
PicoRiveraTele
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Re: Mag-swapping a JB with a roughcast A5 - where to buy?
Roughcast and unpolished mean the same thing, just as smooth means the same thing as polished. As far as I can tell, all the magnets offered through addictionfx are "cast" in sand, which means they initially have the texture of the sand mold, and have to be ground down to precise dimensions, then polished smooth. In this case, the magnetic properties would be no different at all, save for the fact that the ground and polished magnet would be slightly smaller than one that hasn't been ground down.
The alternative to that would be sintered AlNiCo, where the magnet is made by pressing powder under high pressure, which gives you a magnet that is the correct size and nearly smooth already. So if you have a rough AlNiCo magnet, it has to be cast, but if it's polished it could be sintered or cast. Sintered AlNiCo will be just slightly weaker than cast. Most of the vendors of bar and pole piece magnets for guitar pickups, like Stewmac, or whoever, just generically say the AlNiCo is "AlNiCo 2" or "AlNiCo 5", but don't say if it's cast, sintered, or a sub grade offered by a particular supplier. For example, you can see that this supplier has five different types of AlNiCo 5 https://www.eclipsemagnetics.com/me..._assemblies/alnico_magnets_datasheet_rev2.pdf , four cast and one sintered. I think the presumption is that since tonal preferences are imprecise, compared to say, an MRI machine, they can dispense with specifics, but that leaves in the dark when it comes to what exactly is the difference between the "rough cast" and the "polished" versions of a magnet they're selling.
Roughcast and unpolished mean the same thing, just as smooth means the same thing as polished. As far as I can tell, all the magnets offered through addictionfx are "cast" in sand, which means they initially have the texture of the sand mold, and have to be ground down to precise dimensions, then polished smooth. In this case, the magnetic properties would be no different at all, save for the fact that the ground and polished magnet would be slightly smaller than one that hasn't been ground down.
The alternative to that would be sintered AlNiCo, where the magnet is made by pressing powder under high pressure, which gives you a magnet that is the correct size and nearly smooth already. So if you have a rough AlNiCo magnet, it has to be cast, but if it's polished it could be sintered or cast. Sintered AlNiCo will be just slightly weaker than cast. Most of the vendors of bar and pole piece magnets for guitar pickups, like Stewmac, or whoever, just generically say the AlNiCo is "AlNiCo 2" or "AlNiCo 5", but don't say if it's cast, sintered, or a sub grade offered by a particular supplier. For example, you can see that this supplier has five different types of AlNiCo 5 https://www.eclipsemagnetics.com/me..._assemblies/alnico_magnets_datasheet_rev2.pdf , four cast and one sintered. I think the presumption is that since tonal preferences are imprecise, compared to say, an MRI machine, they can dispense with specifics, but that leaves in the dark when it comes to what exactly is the difference between the "rough cast" and the "polished" versions of a magnet they're selling.
Ayrton
New member
Re: Mag-swapping a JB with a roughcast A5 - where to buy?
You can also get magnets here
http://www.philadelphialuthiertools.com/bar-magnets/
You can also get magnets here
http://www.philadelphialuthiertools.com/bar-magnets/