Post by bondoman2k on Jun 12, 2010 9:37:42 GMT -7
Info On JL (Johnny Lightning) Magnets, and How to Match Them..by LDThomas! (Larry Thomas)"
Here is some VERY interesting info about these magnets. These are not just your 'basic' magnets, as you will learn. You guys that have been around a while might know this..but this will be VERY helpful for the 'not so experienced' guys (like ME! LOL)
Again, thanks to Larry Thomas from over on the HobbyTalk boards for this info. (And, yes, I DO have his permission and he hopes it helps everybody out..I KNOW it's already helped me. )
Also, thanks Sam for all your help, and for your 'comradery' as well. It's been much appreciated. 
Ron (Bondo)
Lonestar Racing and Resins
JL magnets are an interesting lot. Few people realize that the are zapped with a very unique multi pole configuration from the factory. As you can see from these photographs, there are at least three primary poles in each of these magnets. Conventional zapping will not produce these results. Because of this, I don't zap my JL magnets except as a last resort because once they are zapped, the multi-pole configuration is lost forever.
Here you see the magnets sitting on their back on a piece of steel. This is what you will get if you put a pair of Aurora magnets on a magnetic surface.
This picture shows the magnets rocked over to one end so that the end poles are now the primary force on the piece of steel.
And this picture shows them rocked to the other end. You cannot do this with conventional magnet zapping.
And this cross-eyed picture is thrown in just for fun.
The key to get the best performance from a set of JL magnets is to match the locations of the primary poles in both magnets so that the magnets are working together and complimenting each other. This is more important than matching them for strength.
This last picture shows the faces of the magnets that get a bit of a shave on the diamond hone in order for the JL magnets to properly fit in an Aurora T-Jet chassis.
To find a matched set of JL magnets, you will be looking for two magnets that mirror each other. By that I mean both magnets should rock the same amount to the left and both magnets should rock the same amount to the right while looking at the painted side of both magnets. This will give you a set of magnets that have the fields directly opposing each other radially through the centerline of the armature shaft.
As you match up a few pairs of magnets and then try them out in your cars, you will be able to find the pair that gives the best performance for the track you are running on. There is no one perfect set of magnets. Different tracks need different power bands. And by matching up your magnets you will have several choices to play with.
Here is some VERY interesting info about these magnets. These are not just your 'basic' magnets, as you will learn. You guys that have been around a while might know this..but this will be VERY helpful for the 'not so experienced' guys (like ME! LOL)
Again, thanks to Larry Thomas from over on the HobbyTalk boards for this info. (And, yes, I DO have his permission and he hopes it helps everybody out..I KNOW it's already helped me.
)Also, thanks Sam for all your help, and for your 'comradery' as well.
It's been much appreciated. 
Ron (Bondo)
Lonestar Racing and Resins
JL magnets are an interesting lot. Few people realize that the are zapped with a very unique multi pole configuration from the factory. As you can see from these photographs, there are at least three primary poles in each of these magnets. Conventional zapping will not produce these results. Because of this, I don't zap my JL magnets except as a last resort because once they are zapped, the multi-pole configuration is lost forever.
Here you see the magnets sitting on their back on a piece of steel. This is what you will get if you put a pair of Aurora magnets on a magnetic surface.
This picture shows the magnets rocked over to one end so that the end poles are now the primary force on the piece of steel.
And this picture shows them rocked to the other end. You cannot do this with conventional magnet zapping.
And this cross-eyed picture is thrown in just for fun.
The key to get the best performance from a set of JL magnets is to match the locations of the primary poles in both magnets so that the magnets are working together and complimenting each other. This is more important than matching them for strength.
This last picture shows the faces of the magnets that get a bit of a shave on the diamond hone in order for the JL magnets to properly fit in an Aurora T-Jet chassis.
To find a matched set of JL magnets, you will be looking for two magnets that mirror each other. By that I mean both magnets should rock the same amount to the left and both magnets should rock the same amount to the right while looking at the painted side of both magnets. This will give you a set of magnets that have the fields directly opposing each other radially through the centerline of the armature shaft.
As you match up a few pairs of magnets and then try them out in your cars, you will be able to find the pair that gives the best performance for the track you are running on. There is no one perfect set of magnets. Different tracks need different power bands. And by matching up your magnets you will have several choices to play with.
