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Starrett # 230 Barrel Lock

Discussion in 'METROLOGY - MEASURE, SETUP & FIT' started by ronboult, Jun 19, 2017.

  1. ronboult

    ronboult Australia Active User Active Member

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    Hi
    I have a Starrett #230 Micrometer which I obtained second hand.
    The barrel lock does not work so I disassembled it and it appears that there may be parts missing. See Photo.
    Are there balls or some other part(s) that fit in the inner ring of the lock to cause it to lock to the shaft?
    If so where might I obtain replacements?
    Ron
    Brisbane Au

    IMG_4310.JPG
     
  2. kd4gij

    kd4gij United States Active User Active Member

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  3. pstemari

    pstemari H-M Supporter - Premium Content H-M Supporter-Premium

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    If you scroll down that page to the downloads section, you can get detailed 2d PDF drawings and 3d step models. My experience is that the 3d models are really good.

    Sent from my Pixel XL using Tapatalk
     
  4. kd4gij

    kd4gij United States Active User Active Member

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    unfortunately the models only show the part highlighted on the mic. not a parts brake down.
     
  5. ronboult

    ronboult Australia Active User Active Member

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    Thanks kd4gij
    Looking at the parts list I suspect that the missing part is PT05325 Roll Binder. Just a guess as I can't find a diagram to confirm.
    Maybe somebody who knows can confirm.
    Fortunately the Mic works perfectly without the lock but it would be nice to repair to original condition.
    Ron
     
  6. ronboult

    ronboult Australia Active User Active Member

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    Hi pstemari,
    Thanks for the comment.
    While I can see the 2D pdf it has no detail and I can't get the 3D file to open correctly. Maybe because I use a Mac.
    Ron
     
  7. kd4gij

    kd4gij United States Active User Active Member

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    Ok I found it roll binder is the part. If you download there 3d viewer you can change the view to exploded in the upper left corner where it says sheat.
     
  8. ronboult

    ronboult Australia Active User Active Member

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    Sorry kd4gif I can't view the 3D exploded view because the 3D viewer is only windows compatible and I am on a Macintosh computer.
    Thanks for confirming the correct part- now I only have to find out if there is an agent /supplier in Au
    ron
     

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