Very interesting proof of theory Butch posted to Flickr

[Low-Q]

If the magnet wants to approach a narrower part of the track, why should it work to separate the two small iron parts? These two separating parts will not fully separate with that small magnet, because until a sertain point the two pieces will not separate anymore. Maybe separate as much as the diameter of the magnet - maximum.

Vidar

[gyulasun]

If the magnet wants to approach a narrower part of the track, why should it work to separate the two small iron parts? These two separating parts will not fully separate with that small magnet, because until a sertain point the two pieces will not separate anymore. Maybe separate as much as the diameter of the magnet - maximum.

Vidar

Hi Vidar,

Does not depend on the strength of the magnet how far the two iron parts separate?  Because the magnet will magnetize the two parts quasi equally so the two parts repel each other: how far they are able to repel just a question of the strength of the inducing magnet, no?  And if they separate as much as the diameter (or the width in case of a rectangular magnet) because magnet strength is a finite number indeed, then you still have some freedom to choose the mechanical sizes.

Gyula

[Low-Q]

Hi Vidar,

Does not depend on the strength of the magnet how far the two iron parts separate?  Because the magnet will magnetize the two parts quasi equally so the two parts repel each other: how far they are able to repel just a question of the strength of the inducing magnet, no?  And if they separate as much as the diameter (or the width in case of a rectangular magnet) because magnet strength is a finite number indeed, then you still have some freedom to choose the mechanical sizes.

Gyula

The magnet will separate the iron parts untill a sertain extent, but the magnet are attracting the iron parts more than the repulsion between the iron parts. Therfor the iron parts cannot repel and separate "infinitely". Also the magnetic behaviour of the iron parts will weaken as farther from the magnet they are.

In the last video I see the iron parts are separating way beyond the range of the magnet, and way beyond the repulsing forces between the iron parts are allowing.

There is more to this last design which is a problem. The V track will allow the small magnet to approach the point where the distance in the V are about the same as the diameter of the magnet and the magnet will rest there. It will not move further to separate the iron parts.

The next problem is: If you choose a much bigger magnet, the magnet will rest earlier in the V track, and definitely not move on to separate the iron parts between those two V tracks.

Sorry I haven't any idea how it should be done - I just know the present design will not work.

Vidar

[gammarayburst]

See attached,
Thanks,
Ray

[gammarayburst]

See attached drawing.
Thanks,
Butch
"Every Problem Is Just A Window To A Solution.
You Just Have To Take The Time To Look Through It"