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Dimension descrepancy

philmat15philmat15 OS Professional Posts: 7 PRO
I have an o-ring gland with and OD of 60.746 mm and an ID of 57.054 mm which should give a width of 3.692 mm.



On the second sheet of the drawing I have a front view of the part with a cross-section view  and a detail view of the gland.  When I dimension the the sidewalls of the o-ring gland in the detail, is shows a width of 2.1 mm.





I'm certain the cross-section is at the right location.  What am I missing?

Phil

Best Answer

  • philmat15philmat15 OS Professional Posts: 7 PRO
    Accepted Answer
    Never mind, I discovered that I'm dimensioning off the wrong lines in the top picture.  There are three lines each at the OD and ID and I wasn't picking the center line.

Answers

  • philmat15philmat15 OS Professional Posts: 7 PRO
    Accepted Answer
    Never mind, I discovered that I'm dimensioning off the wrong lines in the top picture.  There are three lines each at the OD and ID and I wasn't picking the center line.
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