Convert tolerances from inch to mm

Discussion in 'AutoCAD' started by horst, Oct 14, 2005.

  1. horst

    horst Guest

    I converted a drawing from inch to mm by scaling by 25.4 as the AutoCad
    help suggested.
    In this way all dimensions have been properly converted.
    But the tolerances didn't change!
    Is there a way to convert the tolerances too?
    Thanks for your help
    Horst
     
    horst, Oct 14, 2005
    #1
  2. Have you tried changing the dimension style setting and then updating all
    dimensions?
     
    Michael Bulatovich, Oct 14, 2005
    #2
  3. horst

    horst Guest

    Sorry, I don't understand what you mean.
    The domension style applies to both the standard size AND the tolerance.
    What I wanted to say is that when I have an object with a size 1" +/-
    0.1 after the conversion from inch to mm I get a size of 25.4 +/- 0.1
    instead of 25.4 +/-2.54
    There should be somewhere IMHO a switch which allows to change or not to
    change the tolerances after a scaling operation.
    Horst
     
    horst, Oct 15, 2005
    #3
  4. I don't use them in my work, but my understanding is that the tolerance in a
    dimension style is specified in the dimension style. Depending on your
    version this would be tucked somewhere in the DIMSTYLE dialogues. Just
    because you scaled the drawing doesn't mean that the dimstyle has been
    adjusted.

    Go in there and you will probably find that the tolerance is still set to
    ..01. Set it to 2.54. If all the dimensions don't automatically update when
    you get back to the drawing, select all those still reading +/- .01 and
    issue the DIM>UPDATE command. That should do it.

    After scaling the drawing you may want to examine/adjust your unit
    precision, as this may adversely effect the display of your tolerances if it
    is bigger.
     
    Michael Bulatovich, Oct 15, 2005
    #4
  5. horst

    horst Guest

    I don't specify tolerances in DIMSTYLE as they all differ from each other.
    I specify tolerances for each quote.
    It is true that a possible automatic conversion would give me 25.4 +/-
    2.54 instead of 25.4 +/- 2.50 (which is more common), but it would be in
    any case better than 25.4 +/- 0.1 as today.
    It is also true that there should be a switch to prevent a normal
    scaling to show from 10 +/- 0.1 to 12 +/- 0.12 when the tolerance should
    remain the same as before.
    Horst
     
    horst, Oct 16, 2005
    #5
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