Magnetic 'Lens'

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@armagdn03

Thanks for your help ~ I look forward to seeing your results on this.

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[DreamThinkBuild]

Hi All,

I've been busy with the holidays and family coming to visit.

In the wheel setup I still think it will still find a sticky spot on the edges. I'm wondering though if instead of having the magnets perpendicular to the control magnet, angle them back 45 degrees on the sphere. It would look more like an arrow but the south facing field would be toward the back.

Hi Tak,

I used a steel ball bearing for the sphere. The magnets are directly pushed onto the sphere. The ring magnets are from K&J Magnetics http://72.3.133.7/proddetail.asp?prod=R636 . These have just the right inner diameter(3/16") to fit on the standard Lego shafts, which hold it in place. I have not tried a cube yet but might be interesting.

Hi Armagdn03,

I would be very interested in seeing the output of the magnetic simulation. If you have time could you try to simulate with the outer magnets swept back 45 degrees? Thank you.

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@DreamThinkBuild:

Not sure if I followed your idea on rotating the magnets. . . . Is this drawing sort of what you had in mind?

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[armagdn03]

Some preliminary photos for visulization (2d)

These are a 2d version of the original array,

http://i210.photobucket.com/albums/bb275/tortuga0303/11.jpg
http://i210.photobucket.com/albums/bb275/tortuga0303/12.jpg

and an "improvement" where I cut off the pole at the bloch wall, seems to get better results.

http://i210.photobucket.com/albums/bb275/tortuga0303/21.jpg
http://i210.photobucket.com/albums/bb275/tortuga0303/22.jpg

[truesearch]

@DreamThinkBuild:

Oops! After re-reading your post I realized that you were addressing the magnets in the "beam" array. My bad. . . .

Is this more like what you had in mind??

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