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[Newbie] Hard drive platters as a reference surface

Discussion in 'METROLOGY - MEASURE, SETUP & FIT' started by rspenc, Aug 10, 2017.

  1. rspenc

    rspenc United States Iron Registered Member

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    I'm new to the hobby. I'm wondering if you could use a platter from an old hard drive as a small reference or straightedge? They are incredibly flat and are thrown in the trash regularly.
     
  2. markba633csi

    markba633csi United States Active Member Active Member

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    Sure why not? Are you talking large ones like 8"?
    Mark
     
  3. rspenc

    rspenc United States Iron Registered Member

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    Just thinking about stuff that can be re purposed. There are probably very few of the old monster drives around anymore. They are buried in landfills around the world.
     
  4. RJSakowski

    RJSakowski H-M Supporter - Premium Content H-M Supporter-Premium

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    I would be concerned with flexing and/or thermal distortion. There's a reason that surface plates are made from 3 or 4" slabs of granite.
     
    kd4gij and kvt like this.
  5. juiceclone

    juiceclone United States Active Member Active Member

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    as above, too thin.....make great wind chimes though.
     
  6. British Steel

    British Steel United Kingdom Active User Active Member

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    And excellent plinking targets, too

    Dave H. (the other one)
     
  7. chips&more

    chips&more United States Active User Active Member

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    The magnets are better repurposed.
     
  8. markba633csi

    markba633csi United States Active Member Active Member

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    You could stick them all over you and make a really interesting Halloween costume-
    Mark
     
  9. darkzero

    darkzero Global Moderator Staff Member H-M Supporter-Premium

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    Yup, as said, way too thin.

    They make great mirrors though. I used to work in electronic depot repair. We scrapped tons of failed HDDs weekly. We had a guy who's job was to drill into HDD platters all day long (we were required to destroy them to protect customer data).

    Some of us as techs woud stick the platters on our work benches to see anyone sneaking up on us. Then I when I became part of management, I had them stuck all over to spy on my techs & as well as those higher ups that were disliked. I've always admired how nicely the parts are machined inside HDDs.

    They're also good for scaring birds away if you hang them in trees. I always thought this was a myth but it really does work. Most people use old CDs.
     

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