<font size="2"><font face="verdana,sans-serif">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. </font></font><div>
<font size="2"><font face="verdana,sans-serif"><br></font></font></div><div><font size="2"><font face="verdana,sans-serif">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.</font></font></div>
<div><font size="2"><font face="verdana,sans-serif"><br></font></font></div><div><font size="2"><font face="verdana,sans-serif">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.</font></font></div>
<div><font size="2"><font face="verdana,sans-serif"><br></font></font></div><div><font size="2"><font face="verdana,sans-serif">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.</font></font></div>
<div><font size="2"><font face="verdana,sans-serif"><br></font></font></div><div><font size="2"><font face="verdana,sans-serif">Also... </font></font></div><div><font size="2"><font face="verdana,sans-serif"><br></font></font></div>
<div><font size="2"><font face="verdana,sans-serif">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. :)</font></font></div>
<div><font size="2"><font face="verdana,sans-serif"><br></font></font></div><div><font size="2"><font face="verdana,sans-serif"><span class="Apple-style-span" style="font-family: arial; "><a href="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</a></span></font></font></div>
<div><font size="2"><font face="verdana,sans-serif"><span class="Apple-style-span" style="font-family: arial; "><a href="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"></a></span> </font></font></div>
<div><font size="2"><font face="verdana,sans-serif">I also found these two pages interesting:</font></font></div><div><font size="2"><font face="verdana,sans-serif"><br></font></font></div><div><font size="2"><font face="verdana,sans-serif"><a href="http://en.wikipedia.org/wiki/Magnetic_levitation">http://en.wikipedia.org/wiki/Magnetic_levitation</a></font></font></div>
<div><font size="2"><br></font></div><div><font size="2">&</font></div><div><font size="2"><br></font></div><div><font size="2"><a href="http://www.fys.uio.no/super/levitation/">http://www.fys.uio.no/super/levitation/</a></font></div>
<div><br></div><div>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. =)</div>
<div><br></div><div>Anyhow, I hope that this has helped you or helped others with some additional resources in some small way.</div><div><font size="2"><font face="verdana,sans-serif">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. =)</font></font></div>
<div><font size="2"><font face="verdana,sans-serif"><br></font></font></div><div><font size="2"><font face="verdana,sans-serif">Best Regards,</font></font></div><div><font size="2"><font face="verdana,sans-serif"><br></font></font></div>
<div><font size="2"><font face="verdana,sans-serif">Thomas Stowe</font></font></div><div><font size="2"><font face="verdana,sans-serif"><br clear="all"></font></font>The information transmitted in this communication is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged information. Any review, retransmission, dissemination, 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 intended recipient, is strictly prohibited and may be unlawful. If you received this in error, please contact the sender immediately and delete and destroy this communication and all copies thereof, including all attachments.<br>
<br><br><div class="gmail_quote">On Wed, Sep 15, 2010 at 9:00 PM, Jonathan Foote <span dir="ltr"><<a href="mailto:jtfoote@ieee.org">jtfoote@ieee.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
Don't forget diamagnetism (negative magnetic moments not subject to<br>
Earnshaw's theorem).<br>
<br>
Mike Kan had a little static levitation demo (using pyrolitic<br>
graphite?) at the old space: ask him about it, it's super-cool.<br>
<div class="im"><br>
<br>
<br>
On Wed, Sep 15, 2010 at 2:07 PM, David Kelso <<a href="mailto:david@kelso.id.au">david@kelso.id.au</a>> wrote:<br>
</div><div><div></div><div class="h5">> I'm trying to levitate some small objects.<br>
> I know you can't have stable equilibrium with permanent magnets, but<br>
> is there a way to do it with microcontroller controlled<br>
> electromagnets?<br>
> This is an area I have no experience in - just had some ideas for a<br>
> project and wanted to see what was possible. Any experiences / reading<br>
> material would be highly appreciated.<br>
><br>
> david<br>
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