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Thread: Minimum wall thickness

  1. #1
    Junior Member
    Join Date
    Sep 2011

    Default Minimum wall thickness

    Hi, I am trying to measure the minimum wall thickness for a small tube. The tube has three inner holes (kind of like ) and I need to find the minimum wall thickness for each of these holes to the outer OD wall of the tube. What is the best way to do this?


  2. #2
    PC-DMIS demi-Guru John Kingston's Avatar
    Join Date
    Feb 2006
    Cleveland, Ohio


    1) Tube micrometers, can seam micrometers.

    2)Measure OD. Measure ID. Find difference between OD and ID. Divide by two. Repeat for each.

    The second method will only give you an average and won't help you find variation in thickness.

    EDIT: I didn't realize this was in the Vision section.
    There may well be a way of doing this, but I don't have a PC- DMIS Vision system.
    Last edited by John Kingston; 06-07-2012 at 10:33 AM.
    When in doubt, post code. A second set of eyes might see something you missed.

  3. #3
    Ultra Senior Member AndersI's Avatar
    Join Date
    Aug 2007


    You can create lines from the OD center through each of the ID:s, then create intersect points on the ID and the OD, and check the distance between the points.
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    SW support - Hexagon Metrology Nordic AB

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