Introduction: The Never Ending Top...until the Battery Dies

Picture of The Never Ending Top...until the Battery Dies

Tops have been around for a very long time and have had hardly any changes. You pick them up, spin them, they start to slow down and topple over.All in just a few seconds. But if you add a motor...Well you see what I mean. Heres how I was able to get a top to spin normally for about a day and a half.

Step 1: The Materials

Picture of The Materials
To Make this top you'll need....

  • Black Electrictians Tape
  • Scissors (optional)
  • Blank or Old CD
  • Super Glue
  • AA Battery
  • Old cd player motor with the disc clip
  • Wire Strippers
  • Switch
  • One Airsoft or metal BB

Step 2: Preparing the CD

Picture of Preparing the CD

First take the electricitians tape and line up the cd edge to the center of the tape. Pull the tape and start wrapping around the cd until the edge is about double the thickness of the original cd.

Step 3: The Motor

Picture of The Motor

Wire the motor to one of the switches wires. then take the other motor wire and run it to the "-" side of the battery with tape. Then attach the other switch wire to the "+" side of the battery.Turn it on and test if it works.

Step 4: Placing the BB

Picture of Placing the BB

Put a dab of super glue on the very middle of the cd clip. Then place the bb directly centered on it. Let it dry and test if its centered by turning the motor. If it doesn't seem to be moving its centered.

Step 5: Put It All Together

Picture of Put It All Together

Tape the battery to the middle of the back of the motor yet again directly centered. Next bend the switch on to the top of the battery centered just above it. hold the whole thing in this position and secure it tightly with tape. To change the battery you have to unravel the tape but its worth it for how long one battery lasts. Now clip on the cd and turn it on. Let it spin for a while while you hold the motor in the air. Then slowly let it down onto a flat smooth surface hold it there for a couple of seconds and let go. The motor should then start spinning as well as the cd. It will go on for as long as the battery has power or until you turn it off. ENJOY!!!


kittenlover666 (author)2008-07-07

if i make this im gonna add a solar panel. if i can

Rockerx (author)kittenlover6662008-07-07

that would be cool. though the only hard part would be getting a panel that can power it enough and still be small. let me know if you get it to work.i'd like to see that

ac1D (author)Rockerx2011-05-19

How much Volts does the motor require, I have a small rectangular solar panel, 1inch by half an inch, and it output 3.59v!

Use a circuler solar panel as the cd.

masterchrisx3 (author)2008-07-02

THANK YOU i mad this and spun it abot 10 minits ago and its still spinning as i wright this comment well worth taking apart a cd player +5*

Rockerx (author)masterchrisx32008-07-02

thanks i still need to revise it but i was able to get mine to run for about a day and a half on one AA before it died.See how long you can get it. and like how evilthingamabober said. You could put a lithium on it and it would go even longer!

masterchrisx3 (author)Rockerx2008-07-02

its still spinning ;) lol

ps its a gyrascope too

it with 2 bat and a bunh of razors is a saw

Rockerx (author)masterchrisx32008-07-02


masterchrisx3 (author)Rockerx2008-07-02

im serous 1 razor cut duct tape you cold be a lazy emo

lager (author)masterchrisx32008-08-20

Lol! that was a funny comment hahaha nice one xD

dragonsniper (author)lager2011-02-06


jaxxster1 (author)2009-07-28

a 9V works better.

stephenniall (author)2008-12-31

im gonna build a rc one lol

Rockerx (author)stephenniall2009-01-01

Go 4 it! :P

mettaurlover (author)2008-09-22

i used salvaged parts from a hard drive, and ground down the edge of the platter. stupidest idea in my life. and i've had a lot of those. it's nearly destroyed the box i put it in.... now i understand why you tape the edge.

UltraMagnus (author)2008-07-20

interesting.... to make it last longer, you could use a pager vibrator motor instead, they use a lot less power

Rockerx (author)UltraMagnus2008-07-20

Yes, but I don't know if I could find one with enough torque. But otherwise that would work great!

bob the builder #1 (author)2008-04-04

cool but if u could make one without a base that woulod be cool. I might actually do that.

it doesn't have a base the thing its on in the main picture is just there so it doesn't go flying off my desk

Shagglepuff (author)2008-06-27

Use a Lithium 6v cell for this and it really will never end

Rockerx (author)Shagglepuff2008-06-27

i never thought of that good idea

trumpkin (author)2008-03-05

i thought of doing this once

gamer (author)2007-11-14

video plz!! nice idea. -gamer

nagutron (author)2007-11-13

Kind of cool. The less the motor spins, the more energy is transferred to the CD, right? You could add another CD to the top of the motor, so that all of the motor's motion would also contribute to the angular momentum keeping the top upright. That would look pretty cool, too.

Visitor (author)nagutron2007-11-13

The disk attached to the motor+battery would spin to the opposite direction than the disk attached to the axle. I think it would actually make this less stable. To increase stability one should try to slow down the rotation of the motor+battery assembly so that as much energy as possible is transferred to the spinning CD.

nagutron (author)Visitor2007-11-14

I think two disks spinning in opposite directions but in parallel planes would actually be more stable than one. However, you may be right for a different reason: I'm not sure if that stability increases linearly with the speed of the disk, or if it's a higher-order function. If it's a higher-order function, then two disks spinning at half the speed would be less stable than one spinning at the full speed. If that's the case, then fixing the motor + battery makes sense; you could perhaps add lightweight fins to increase its friction in the air, causing it to transfer more power to the single disk below.

Danny (author)2007-11-14

no video?

Visitor (author)2007-11-13

Pretty neat. To make the instructable better, you should include a description about why it works (and please change all caps text in step 2 to regular). I assume the reason why this works is that the battery and the motor rotates slower than the disk (because of air resistance) so the disk provides enough momentum to keep it from falling. Right?

Garth Knight (author)2007-11-13

good project. -GK ...Those scissors, wow. ...very pink. At least no one will ever steal them.

Lftndbt (author)2007-11-13

Nice work.... Might give it a go... ;)

About This Instructable




Bio: I'm just a happy-go-lucky guy with a 'do it myself' attitude. If I can make it myself, how I want it, and for a ... More »
More by Rockerx:Screaming Computer ShutdownThe Never Ending Top...until the battery dies
Add instructable to: