Step 3: Build the magnetic top

a) with the cutter cut a slice of cork from the cap. The slice should be 5mm (13/64 ") thicker;
b) put the neodymium magnet on the cork slice, with the pen trace the internal circle of the magnet on the slice;
c) drill the center of the cork slice with the 5.5mm drill bit. You can do it by hand, the cork is very soft;
d) cut the slice on the line tracked at point b);

e) glue the lateral surface of the slice and then insert it inside the neodymium magnet;
f) shorten the plastic screw (remove both top and tail of the screw with the saw). The final length should be 30mm;
g) reduce the weigth of the screw to 0.7g (use the sandpaper and the saw for that), now youhave all the components;
h) put the screw inside the hole previously made. Finally you have the magnetic top.
i) As I told you in the intro the weight is crucial. At the end of the previous steps the weight of the top should be 15g (more or less). That weight is smaller than you need, for this reason you need to glue one or more washers to the magnetic top. The right number of washers and their weight is well explained in the "Levitation step"
<p>Maybe someone will be interested in:</p><p>DIY levitation device with two transistors and hall effect sensor</p><p></p><p><iframe allowfullscreen="" frameborder="0" height="281" src="//www.youtube.com/embed/Ofz_0GsrBmk" width="500"></iframe></p>
<p>im making this for my science fair and im looking for background research</p>
<p>can we use ordinary magnet for the spining top?</p>
<p>I don't think ordinary magnets will work. Neodymium mangnet is the best choice because it's light and at the same time it comes with a very strong magnetic field.</p>
<p>Very well done and well explained. Excellent job here. Now, anyone can make a device like the Levitron. Totally cool.</p><p>Bill</p>
Thank you.
<p>where can i get a neodymium magnet ?? is it available onl9?? pls help me with the link ?</p>
I found mine at www.supermagnete.it which is the Italian web site of a german company
<p>where can i get a neodymium magnet ?? is it available onl9?? pls help me with the link ?</p>
i am just a beginner..i have a doubt.. <br>will it work if i rotate the base magnet (the one below using motor or smthing) and leave the small (levitating magnet) stationary.. will the small magnet levitate??
no the small magnet works just like a normal spinning top exept that it has the force of the magnet holding it up <br> <br>the spinning gives it its stability
How long does it levitate for?
Hi <br>the longest fly was about a couple of minutes long.
Thanks to you too. Bye bye
Very very nice this instructables video.. Thanks a lot my friend...
i want to make it
no offense
uhhhhhhhh.(brain blows up)
Fantastic Instructable.<br> <br> I must start looking for bits and pieces to build one of these.<br>
Hi,<br>I'm happy you like it, belive me its incredible when you see the top flying
Hi I'm happy you like it. The key parts are the magnetic base and the magnetic ring for the top. Be aware of weights and dimensions and good job.<br><br>Bye
I had not read through this whole Instructable last night when I posted my first comment. This is really quite nice, and you do a great job of integrating the mechanics of the build with some of the underlying magnetic physics. Very nice!<br><br>There are some odd language constructions, but they appear to me rather similar to some of the Italian/English translation issues my experimental collaborators occasionally have.
now teh fist page picture and the video from you-tube are embedded inside the instructable. Let me know your opinion. Bye David
Great work! It looks like the video covers the whole building and tuning process, which makes it a great complement to the written Instructable. And it makes it very clear just how &quot;fiddly&quot; the process actually is.
Hi<br><br>I'm improving the instructable. I've made a new shorter you tube video (less boring).<br>Unfortunately I'm not able to add it anymore to the instructable. I don't know why. when I push the &quot;embedded video&quot; button (in the edit menu) it appears an empty space where to paste the code coming from the you tube video, but when I push the &quot;Ok&quot; button nothing happen.<br><br>If I use firefox a &quot;javascript:void(0)&quot; mesaage appears in the bottom left window,<br>if I use Internet Explorer &quot;Errore nella visualizzazione della pagina&quot;<br><br>Can you help me
Hmmmm....are you actually pasting the code into the pop-up box? <br><br>The &quot;javascript:void(0)&quot; you see in your browser frame is normal; that's because the OK button is not a hyperlink, but rather a JavaScript action.<br><br>The site has been doing some software updates over the past couple of days. It's possible that they touched the code which handles the video embedding and broke it.<br><br>If you are still seeing this problem, would you mind posting a <a href="https://www.instructables.com/edit/new?type=forumTopic&categoryGroup=help&category=bugs">bug repor</a>t?
Yes I pasted the code into the pop-up box, like I did the first time when everything went well. Up to now I've made some tests:<br>a) removed the old code from the instructable (actually is just a frame with the &quot;flash&quot; tag inside) and added the new code. As I told this doesn't work.<br>b) I left the &quot;original instructable step&quot; with inside the old video (which is working) and I added a new step with the new video. Same problem as a)<br>c) I've repeated step a) and b) after rebooting my PC. Same results.<br>d) I've made step a) but from my laptop and now it works. As I can see there are some different windows update still pending on my laptop. Currently, instead, my PC is fully updated.
Thanks I'm very happy you appreciate my work. What about the text? Can you help me to correct the worst sentences? I see there is a &quot;contests section&quot; on instructables. Do you think I can subscribe at some of them?
I sent you a &quot;private message&quot; (at the top of any Instructables page, you should see a link that says &quot;Inbox (1)&quot;, right next to &quot;You&quot;). I don't think that correcting someone's grammar is usually appropriate for public discussion, unless they're being deliberately stupid :-)<br><br>For the contests, you should click on that link, and see what sorts of contests are currently running. The only one active right now is for homemade soup; I don't think this qualifies :-) <br><br>If you are interested in writing up other projects that you create, you should keep an eye on the list of contests, and also look at the <a href="https://www.instructables.com/community?categoryGroup=all&category=all">discussion forums</a> for announcements of upcoming contests, so that you can plan for them.<br><br>Good luck, and welcome to Instructables!
Ok, I'll check the your private message as soon as possible. Thanks again for the support. Bye David
kelseymh I'll be happy if you could help me in improving the text. I'll wait your comments. Currently I'm seeking a good picture for the first page.<br><br>Bye and thanks
I sent you a message with my suggestions for changing the language. I did not try to do a complete &quot;edit&quot; of your work, I just focused on specific phrases which sounded weird in English, but which I think were probably quite sensible Italian (your use of &quot;libra&quot; for &quot;scale&quot; was one :-).
For your Introductory step, it would be good if you included a picture of your final, completed project, preferably in action. The Intro picture is what get used as a &quot;thumbnail&quot; on the &quot;Recent Instructables&quot; page. Without a picture, your I'ble is going to get very few views.<br><br>In your final step, where you want to have a video, it would be better if you created an account on YouTube, or Vimeo, or one of the other video-streaming sites. Upload your video file there, then use that site's &quot;embed code&quot; to attach the video. Instructables doesn't have the bandwidth to support streaming video directly.

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