Tolerance in Title Block

Discussion in 'Pro/Engineer & Creo Elements/Pro' started by Aggrevated, Mar 21, 2008.

  1. Aggrevated

    Aggrevated Guest

    Ok, so I figured out how to make the tolerancing work in the title
    block by writing:

    ..xx = &linear_tol_0_00
    ..xxx = &linear_tol_0_000

    Great, fantastic.

    But! And here's the question:

    How do I do it with dual-dimensioning? Everything we do has to have
    metric too, including the title block.

    Is there something like &metric(&linear_tol_0_0) ?? or some other
    such thing?

    Thanks.
     
    Aggrevated, Mar 21, 2008
    #1
  2. Aggrevated

    Janes Guest


    First of all, you should understand that dual dimensioning is an illusion, a
    trick performed by Pro/e at the time the dimension is created or placed.
    Whichever one is NOT your default system of units (usually, but not
    necessarily, your secondary units) is the result of a calculation and placed
    in the drawing according to formatting definition in your DTL file. IOW, if
    you select the dimension and RMB 'Properties', go to the Dimension Text tab,
    you'll see nothing special about the format (still @D) and the Name of the
    dimension parameter still a single name like 'd61'. The secondary dimension
    is an operation, not a parameter. So, it will not be possible to show it
    with &parameter_name because there is no special parameter for dual
    dimensioning or for the secondary dimension. In fact, you'll notice that
    when you do 'Info>Switch Dimensions', the Primary (parametric) part of the
    dimension shows the parameter name but the secondary part remains literal
    text. So, there is only one set of tolerances, those in your default system
    of units. Anything else is the result of a calculation based on a conversion
    factor. You could, I guess, set this up with Relations as
    TOL1=linear_tol_0_00/25.4, then display this as [x.xx]=&TOL1.

    I'm all for using all the power of parametrics wherever possible and
    appropriate. But the standard, stable, static info in a format? Shouldn't we
    be reserving the use of parametrics for design and detailing elements that
    vary constantly?

    David Janes
     
    Janes, Mar 22, 2008
    #2
  3. Aggrevated

    Aggrevated Guest

    Ok, I guess that makes sense. I like parametrics cause I'm lazy. A
    little work in the beginning automating everything saves a bunch of
    time later. However, putting relations in to calculate titleblock
    info seems a bit overkill.

    However, our title block standard tolerances change constantly. Some
    parts will be .xxx=.005 others .xxx=.001 yaddayadda.

    Here's the problem. We're always "tinkering" with our title block
    formats. So, when we go in to swap to the new title block, you have
    to adjust the standard tolerances on every sheet. This irritates me.

    Well, I guess you can't have everything.
     
    Aggrevated, Mar 24, 2008
    #3
  4. Aggrevated

    Janes Guest

    How do you do this variation in the customary units? It's got to be as
    cumbersome there because linear_tol_0_00 is a Pro/e system parameter, not a
    user defined one. It goes in the config.pro file which applies to every file
    created. And, if you change it in config.pro, it changes it in every file.
    So, how are you customizing this? User defined parameters?

    Anyway, relations, built into the part, would just take this value and
    convert it with some factor and, at the same time, create a parameter that
    would be used in the format so that any time you changed the value of the
    customary units tolerance value, you'd get the automatic conversion to ISO.

    David Janes
     
    Janes, Mar 24, 2008
    #4
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