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  • clamping system

    Does anyone know how the clamping system works in one of the arms that hold a DTI? For instance a magnetic foot with the two or three arms that lock when you turn one knob.
    Location: The Black Forest in Germany

    How to become a millionaire: Start out with 10 million and take up machining as a hobby!

  • #2
    I think there are rods in the arms that lock ball joints on the ends. The rods are moved or expanded by a wedge as you tighten the screw.
    .
    "People will occasionally stumble over the truth, but most of the time they will pick themselves up and carry on" : Winston Churchill

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    • #3
      Yes, the knob pushes rods out that lock the swivel balls. There was a long thread about this long ago. Someone even posted a photo of how they worked.
      It's only ink and paper

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      • #4
        Could it be hydraulic? I seem to have to add a little grease every now and then. Of course mine are very cheap ones from you know where. I missed the post about the rod and wedge issue.
        John Burchett
        in Byng OK

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        • #5
          Any clue what to search on to find the old thread? I am having no luck.
          Location: The Black Forest in Germany

          How to become a millionaire: Start out with 10 million and take up machining as a hobby!

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          • #6
            Noga (brand name) uses wedges and rods to lock the ball joints.

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            • #8
              NOGA- Absolutely the best Indicator holder made IMHO

              Smile every time I use it as I remember the old days

              Rich
              Green Bay, WI

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              • #9
                Yep, I thought they were hyd. but was shown other wise. They are mechanical all the way.
                It's only ink and paper

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                • #10
                  I think there are some that advertise being hydraulic.
                  Play Brutal Nature, Black Moons free to play highly realistic voxel sandbox game.

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                  • #11
                    Originally posted by Rich Carlstedt
                    NOGA- Absolutely the best Indicator holder made
                    Bingo! A truly excellent design.
                    Mike
                    WI/IL border, USA

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