CD ROM Motors ?

Hi, I ripped my old CD ROM Drive and found 3 motors. I have a couple of questions 1) What kind of motors are these ?
2) Where can i find info, about using these motors for hobby and its datasheets ?
3) 2 of the motors came attached with flat paper like flexible cable. How do I take external connections ?
TY BZ
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Here is one place to start: http://electronics.howstuffworks.com/cd6.htm
I would bet money that one of those 3 motors is a stepper motor, so start by Googling on stepper motors. You will get better technical data if you can find a make and model # somewhere on each motor, then Google on that.
If you want to build a robot using these motors you could start by Googling "floppy bot" --- there are a few pages on the net for building a small robot using floppy disk drive motors and electronics.
Hope that gets you started! JCD
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On Wed, 25 Jan 2006 19:31:26 -0500, "pogo"

All of the ones from the drives I've taken apart are DC motors.

I hope you can read Japanese. :) I think it would be easier to test each motor yourself. You might want to measure the voltages across each while it's reading a CD before you take it apart, so you know the approximate range of voltages you should apply.

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i guess from my cd player observation that one is normal dc motor which is just to rotate the disk with desired speed and another is stepper motor which is used to move the laser- lense assembley to perfectly measured desired track.. i dont kno about another one..
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abhi wrote:

There should be three motors: 1. Plain DC motor for ejecting and retracting CD-ROM tray. 2. Small stepper motor for positioning optical head. 3. High-torque brushless motor for spinning the disc.
The brushless spindle motor requires a special controller. The motors are popular for use in tiny RC aircraft. A lot of the time this requires rewinding the stator and possibly replacing the bearings.
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i guess from my cd player observation that one is normal dc motor which is just to rotate the disk with desired speed and another is stepper motor which is used to move the laser- lense assembley to perfectly measured desired track.. i dont kno about another one..
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