Vertical Dimensions using ASME Y14.x std 3

[pdiletti]

I had to convert my drawings from ISO to ASME std.
In accordance with ASME Y14.5M standard
the "dimensions should be placed on drawing
to read from the bottom of drawing" ( section 1.7.5.2 ).
That means a vertical dimension is written in horizontal way .

But the standard uses "should" and not "shall" verb.
So , in your experience, for ASME std,
is it accetable that a vertical dimension is written in vertical way, parallel to dimension line ,
to be read from right ?

Thank you
Pier

 

[tbuelna]

With modern CAD systems making drawing changes is extremely easy. So I don't understand the reluctance to do a thorough job with drawing updates. Correcting the text orientation of these dimensions will probably take far less time than you will spend arguing the point with your drawing checker.

There is a valid reason for the horizontal text orientation requirement in the ANSI/ASME drawing standard. It prevents mistakes in reading of the dimensions. Drawing paper is cheap, so there is no justification for using vertical orientation of dimension texts just to save space.

 

[KENAT]

tbuelna, actually changing the text orientations on a moderately complex drawing from vertical to horizontal could be quite time consuming.

Sure, changing the dimension scale shouldn't take long, but oops now the dimension text cross over each other and interfere with leader lines and geometry...

OK, so just change the spacing between dims, (we are still on an older version of our CAD which only partially automates this process (mostly when placing dims originally not editing them) so this can be time consuming in itself. Maybe other CAD systems do better.

However, even then it may be that increases the spacing means you need to go to larger sheet size, or second sheet to fit it in but that has time associated with it.

Oh, you have rules about needing to show removed views properly and not faking the projection line arrows etc., sorry can't change a conventional ortho direct projected view to a removed one - you need to recreate that view...

Oh yeah, don't forget you have several dozen drawings to do this to.

Suddenly, living with vertical dimensioning on the updated legacy drawings looks more attractive.

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[dgallup]

Not only time consuming but you may have to change the sheet size or the drawing scale to make it fit.

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The Help for this program was created in Windows Help format, which depends on a feature that isn't included in this version of Windows.

 

[KENAT]

Doh, second line should have been...

"Sure, changing the dimension scale orientation shouldn't take long, but oops now the dimension text cross over each other and interfere with leader lines and geometry.."

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