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Recent content by hjohns

  1. hjohns

    advice?????

    This trip would be to Shenzhen, China. Thanks to all.
  2. hjohns

    advice?????

    I currently work for a company that makes injection molded magnets. Unfortunately, the people in charge have decided pack up and move to a plant owned by our company in China. They have asked me if I want to go to China for 1-2 months to get them started, as they have no experience molding...
  3. hjohns

    TIR & Concentricity

    Does anyone know how to measure TIR and Concentricity using a Video CMM. I am working with a Micro-Vu. I was told that to find concentricity I first find the OD, the ID, and the distance between the two. The distance should then be multiplied by 2. Is this correct? Can this be used to...
  4. hjohns

    TIR vs. Concentricity

    I was wondering if someone could tell me the relationship of TIR and Concentricity. Also, if one is known can it be used to find the other. Thanks
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