[Noisebridge-discuss] Active magnetic levitation

Thu Sep 16 03:38:11 UTC 2010

Oh and http://Mekonik.Wordpress.com has some decent resources too, including
an arduino controlled setup that implements a sensor and a link to some code
to handle the setup. Here's the complete tutorial on this particular arduino
levitation setup:

http://mekonik.wordpress.com/2009/03/17/arduino-magnet-levitation/

<http://mekonik.wordpress.com/2009/03/17/arduino-magnet-levitation/>And some
resources taken from this wordpress blog page:

March 4, 2009 by mekonik <http://mekonik.wordpress.com/author/mekonik/>

I found a couple of interesting *magnetic* *levitation* projects online when
I was doing research for my Arduino magnet *levitation*
project<http://mekonik.wordpress.com/2009/03/02/my-first-arduino-project/>.
I was also pointed out some really cool projects that I didn’t know about
by  visitors of my blog and of my Arduino forum thread. Here’s the list:

   -
   http://de.sevenload.com/sendungen/Computerclub2/folgen/N7wXqna-Folge-20-Computer-club2
–
   video from a German podcast (in German), *levitation* starts at 16:25,
   they use ATmega8 and a Hall effect sensor in the base
   - http://bea.st/sight/*levitation*/ <http://bea.st/sight/levitation/> –
   combined with a wireless energy transfer, uses ATtiny26, two Hall sensors on
   the coil, one on each side to compensate for the coil’s field. Also, check
   out his wirelessly powered levitating bulb.
    <http://bea.st/sight/levitation/>
   - http://amasci.com/maglev/maglev.html – *magnetic* cradle, this is a *
   levitation* *above* electromagnets. Uses an array of coils with hall
   effect sensors to mimic a *superconductor*.
   - http://sites.google.com/site/simerlab/<http://sites.google.com/site/simerlab/levitating-globe>
–
   professional *magnetic* *levitation* devices, above electromagnets.

Regards,

TCS

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On Wed, Sep 15, 2010 at 10:33 PM, Thomas Stowe <stowe.thomas at gmail.com>wrote:

> I think that it might be neat to look into mechanical movement of the parts
> that would be fixed if you create a device like the others listed. It could
> controlled by an arduino, done both to see if you can do it with permanent
> magnets and also be neat to see if you could manipulate them when the
> device(s) is in a fixed position or maybe while it's moving too. I'm pretty
> sure that magnetic control of that type might be useful in some way, whether
> it be in a machining or production process or in robotics.
>
> I'm thinking that it might be neat to create something to manage a plastic
> extruder, radiate heat into the air rather than relying on a heat sink in
> equipment that has to cope with heat exchange from an element connected to
> the body of the equipment or another piece of equipment but relies upon an
> arm that is susceptible to heat. It might be that you can do something with
> this in a makerbot.
>
> Or maybe some kind of control mechanism for mechanical movement. What comes
> to mind when I think of magnetic controlled movement is the magnets that
> create a friction increase and decrease effect that makes my recumbent
> exercise bicycle harder and easier to pedal based upon a controller on the
> bike that controls the distance of magnets from disk that spins when a user
> pedals on it.
>
> It might be also that a novel application for ball bearings could be
> developed from it. In fact, I'd hazard to guess that somewhere it already
> has.
>
> Also...
>
> I figured you'd like this and so would the fellow who mentioned diamagnetic
> effect in materials. From what I gather, diamagnetic effects allow
> levitation at room temperature. This is a google docs viewed .doc document
> on the principles of Maglev trains and mentions some interesting facts like
> that a poweful magnetic field of about 16 tesla must be used to levitate
> water drops and some living creatures. Is this what you had in mind more
> than playing with magnets to make legos with metal or magnets attached
> hover? I find it more fascinating, myself. :)
>
>
> http://docs.google.com/viewer?a=v&q=cache:GbTynSTQBsYJ:www.digitaledition.org/adveng/AE0201/AE0201_019-028.pdf+microcontroller+superconductor+magnetic+levitation&hl=en&gl=us&pid=bl&srcid=ADGEEShTL3H3MZ1rOQwQWbSUqdmoJ-93kJgkAv-x5AwoxFBlftWrQ2vc7Z5o60qaFBCv5gFxIpONJn5GQ67pkby5q9L38qqZvG0TGDVgZowRwlaaIZclRPVeEd4nsczIn4vKmm3Xb0HK&sig=AHIEtbQ3ftpKeYq7roWquB75be_cFsgSUA
> <http://docs.google.com/viewer?a=v&q=cache:GbTynSTQBsYJ:www.digitaledition.org/adveng/AE0201/AE0201_019-028.pdf+microcontroller+superconductor+magnetic+levitation&hl=en&gl=us&pid=bl&srcid=ADGEEShTL3H3MZ1rOQwQWbSUqdmoJ-93kJgkAv-x5AwoxFBlftWrQ2vc7Z5o60qaFBCv5gFxIpONJn5GQ67pkby5q9L38qqZvG0TGDVgZowRwlaaIZclRPVeEd4nsczIn4vKmm3Xb0HK&sig=AHIEtbQ3ftpKeYq7roWquB75be_cFsgSUA>
>
> I also found these two pages interesting:
>
> http://en.wikipedia.org/wiki/Magnetic_levitation
>
> &
>
> http://www.fys.uio.no/super/levitation/
>
> Though this second link may seem rather simplistic, have a gander at the
> pages linked on this page. I feel both a newbie and vetted hacker who's
> studied magnetic levitation and superconductors can gain something from
> this, at the very least having some decent MagLev bookmarks to share with
> others. =)
>
> Anyhow, I hope that this has helped you or helped others with some
> additional resources in some small way.
> I have a friend who goes to Noisebridge from time to time (Travis, if
> anyone knows him) who suggested that I join this list (I live in San
> Antonio, TX) because you folks bring up topics that I'd be interested in and
> low and behold, from both the archive and live list, he was right. I hope i
> can join in and add my two cents, research skills or experiences often and I
> spend a great deal of time using the 'net and checking my e-mail as I work
> at home. =)
>
> Best Regards,
>
> Thomas Stowe
>
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> copying or other use of, or taking of any action in reliance upon, this
> information, or any part thereof, by persons or entities other than the
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>
>
>
> On Wed, Sep 15, 2010 at 9:00 PM, Jonathan Foote <jtfoote at ieee.org> wrote:
>
>> Don't forget diamagnetism (negative magnetic moments not subject to
>> Earnshaw's theorem).
>>
>> Mike Kan had a little static levitation demo (using pyrolitic
>> graphite?) at the old space: ask him about it, it's super-cool.
>>
>>
>>
>> On Wed, Sep 15, 2010 at 2:07 PM, David Kelso <david at kelso.id.au> wrote:
>> > I'm trying to levitate some small objects.
>> > I know you can't have stable equilibrium with permanent magnets, but
>> > is there a way to do it with microcontroller controlled
>> > electromagnets?
>> > This is an area I have no experience in - just had some ideas for a
>> > project and wanted to see what was possible. Any experiences / reading
>> > material would be highly appreciated.
>> >
>> > david
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