Hacking a 3.5 inch foppy drive motor

Discussion in 'General Electronics Chat' started by spinnaker, Nov 3, 2010.

  1. spinnaker

    Thread Starter AAC Fanatic!

    Oct 29, 2009
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    I had an idea to use an old 3.5 inch floppy drive as a generator for a propeller clock that I plan to build sometime in the future.


    First off is this even possible to use one of these motors as a generator? I saw a hack for a 5.25 inch floppy that does it and the motors at least seem to be similar.


    If so, has anyone done this or even pulled the drive motor apart?


    I have the drive pretty much stripped bare. I need to disassemble the motor. I removed the 4 screws that hold down the motor control board but I still cannot remove the board.

    I suspect I need to first remove the plate that spins the diskette but I do no see how to do this without destroying the motor controller and possibly damaging the motor.

    On the bottom of the drive, I can see what looks like the ends of 3 screws but their heads would be under the spinning plate, hence it is why I think I must first remove the spinning plate.

    Or are these simply rivets or pins that must be drilled out?
     
  2. marshallf3

    Well-Known Member

    Jul 26, 2010
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    My guess is you've got to take the spindle plate off, it was probably pressed on last during assembly.
     
  3. spinnaker

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    Oct 29, 2009
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    I was thinking the same but how to do it without destroying everything is what puzzles me. :)
     
  4. marshallf3

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    Prying very carefully at two points opposite each other or devise some sort of puller.
     
  5. iONic

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    Nov 16, 2007
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    There are several LED clocks made with used HDD drive motors, thus I am certain it can be done. If fact the 2.5" drives operate on 5-6V. I'm not sure about using it as a generator to supply power to a device as the RPM's on HDD's can be 5400 - 7200RPM's. The clocks I saw used slits cut in the actual HDD to create the clock arms.

    UPDATE:
    Sorry, I thought you were talking about a hard drive motor.
     
    Last edited: Nov 5, 2010
  6. spinnaker

    Thread Starter AAC Fanatic!

    Oct 29, 2009
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    Update. I got it apart. It was a pin push down through the plate. As I pried it up a bit I could see the head of the pin. I was able to grab it with my nippers.


    Yes I planned to use a HDD as the drive. The challenge will be to align everything. Then hope it all holds up under the higher rpms of the HDD.

    But at this point I will be happy to just get the floppy driver generating power.
     
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