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Forum topic by willie posted 470 days ago 628 views 0 times favorited 12 replies Add to Favorites Watch
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willie

456 posts in 1053 days


470 days ago

Topic tags/keywords: question

I will be turning a 3” sphere out of spectraply and am wanting to make a display stand using magnets to suspend it. I have some extremely powerful magnets of different diameters. I have found that trying to do this using the repelling properties won’t work. I am planning to use four magnets, using the attracting sides to suspend the sphere. With a magnet attached to the top and bottom of the sphere and another at the top and bottom of the stand, I’m hoping that I will be able to make this work. Any opinions or experiences with something like this? Thanks for any info. I’ll post pics if this works, if it doesn’t, maybe firewood!

-- Every day above ground is a good day!!!


12 replies so far

View ChrisK's profile

ChrisK

1041 posts in 1680 days


#1 posted 470 days ago

http://www.kjmagnetics.com/

Try researching the above web site. I have purchased from them in the past and they know there magnets.

-- Chris K

View REO's profile

REO

577 posts in 673 days


#2 posted 470 days ago

it will stick to one or the other. opposing pole suspension will be what you end up with I am afraid. in this system you reach equilibrium between gravity and the repelling force of the magnets. The system you describe does not reach a stable equilibrium.

View Post_Oakie's profile

Post_Oakie

84 posts in 752 days


#3 posted 470 days ago

Edmund Scientific sells a 4” magnetic suspended globe. You could buy one and adapt it to your project.

-- Good judgement comes from experience. Experience comes from bad judgement.

View willie's profile

willie

456 posts in 1053 days


#4 posted 469 days ago

After playing around with the magnets for a while today, I decided to try hanging the sphere from a steel rod using one magnet. The smaller diameter magnets worked the best and using 2 gives more strength. I took a 16D nail and rounded off the end but still leaving a point. This allows the sphere to be spun and removed. It’s not quite what I had in mind, but it will work, and I have a deadline of this coming Thursday. It’s just something for my son’s desk, in the colors of his favorite college basketball team. I’ll post some pics when it’s done. Thanks for the advice!

-- Every day above ground is a good day!!!

View Moron's profile

Moron

4666 posts in 2492 days


#5 posted 469 days ago

it boils down to “time”

I would be inclined to reserve quite a bit of mine to make this work

rare earth magnets, wire, washers

how hard can this be ?

-- "Good artists borrow, great artists steal”…..Picasso

View David Craig's profile

David Craig

2130 posts in 1707 days


#6 posted 469 days ago

As others have noted, part of the problem is the tendency of the magnets to want to flip and move into opposite poles. Even the suspended globe that is linked is designed to only stay hovering for about 5 seconds at a time. You might want to look at making a plexiglass box to house the base and globe which would help keep the piece from flipping. The transparency of the box would still keep the illusion alive and would capture the structure so that the magnets would not flip.

-- There is little that is simple when it comes to making a simple box.

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Moron

4666 posts in 2492 days


#7 posted 469 days ago

add a puppet that walks to the beat of a magnet,

and you have the dickie flicker ?

seen some cool shit in my life : ))

priceless joinery where a simple sock can teach for less and puppeteers remain on the list of the most employable

-- "Good artists borrow, great artists steal”…..Picasso

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Moron

4666 posts in 2492 days


#8 posted 469 days ago

for example

the “bobbing” dog/cat/aunt/.…………left bobbing on the dashboard ?

its not that hard to keep a marble suspended ?

today we have magnets that do far more then our imaginations know

-- "Good artists borrow, great artists steal”…..Picasso

View Woody6969's profile

Woody6969

1 post in 468 days


#9 posted 468 days ago

REO you must have a lot of time on your hands?

View willie's profile

willie

456 posts in 1053 days


#10 posted 452 days ago

OK, here’s what I ended up with. I epoxied two magnets in the top of the ball and shortened a 16D nail for it to hang from. It serves no useful purpose, I guess it could be a paperweight. It was an interesting project that gave me some ideas for more. Thanks for all your input! Willie

-- Every day above ground is a good day!!!

View Post_Oakie's profile

Post_Oakie

84 posts in 752 days


#11 posted 451 days ago

Thanks for posting. Nice turning on that sphere. It would be fun to mount something like that in a set of gimbals (if you REALLY have time on your hands).

-- Good judgement comes from experience. Experience comes from bad judgement.

View helluvawreck's profile

helluvawreck

15404 posts in 1465 days


#12 posted 451 days ago

I sort of think that it might be a tricky balancing act for the simple reason that wood does not have a perfect density throughout. But who am I to say? Everything just might fall into place instantaneously. Good luck.

helluvawreck aka Charles
http://woodworkingexpo.wordpress.com

-- If a man does not keep pace with his companions, perhaps it is because he hears a different drummer. Let him step to the music which he hears, however measured or far away. Henry David Thoreau

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