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ss-10-111-Visitor
1-Visitor
August 8, 2016
Question

Dimension line in Creo drawing

  • August 8, 2016
  • 2 replies
  • 4903 views

Hi,

can someone help me in how to represent the semi circle dimension line in creo drawing.

PFA of the image below.

Regards

Sharath


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2 replies

KenFarley
KenFarley21-Topaz II
21-Topaz II
August 9, 2016

There is no such dimension that I know of. It really doesn't make any sense, anyway. The value of the dimension is entirely dependent on whether it refers to the inner edges, the outer edges, or the "centerline" of what seems to be a tube. If the last one is what you are after, you could calculate the "chord length" using simple relations, then use the calculated value in a note.

    S
    ss-10-111-VisitorAuthor
    1-Visitor
    August 9, 2016

    Hi Kenneth,

    Yeah it semi circular tube. In the previous auto cad drawing they have represented end to end tube dimension in that way.

    If its not possible to represent in that manner, how can I represent the semi circular tube dimension in Creo drawing.

    Kindly help on this.

    Regards

    Sharath

    KenFarley
    KenFarley21-Topaz II
    21-Topaz II
    August 9, 2016

    The last sentence says "...calculate the 'chord length' using simple relations, then use the calculated value in a note".

    In other words, use the relations functionality of Creo to calculate the length of the tube in the same way you would by hand.

    For example, if you assume the centerline length of the tube stays the same before and after bending, and the u-shaped section has a straight length of "L" and a centerline bend diameter of "D", you can create a parameter called "LENGTH" and calculate it as:

    LENGTH = 2 * L + PI * D / 2

    Then create a note, and in the text of the note put something like "TUBE LENGTH REQUIRED: &LENGTH".

    The &LENGTH will be replaced in the depiction of the note with the calculated value.

      P
      pushkarkhanna14-Alexandrite
      14-Alexandrite
      August 9, 2016

      you can also use perimeter dimension

      peri_dim.JPG

      Regards

      Pushkar

        KenFarley
        KenFarley21-Topaz II
        21-Topaz II
        August 10, 2016

        Interesting. I wish I'd known about this particular dimension type when I was defining O-ring grooves in the past. Could also be useful for timing belts and such.

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