Drawing text upper case vs. lower case?
Drawing text upper case vs. lower case?
(OP)
Is there a standard or preference for upper case or lower case lettering on drawings today? 30 years ago everything was upper case.
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Drawing text upper case vs. lower case?
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Drawing text upper case vs. lower case?Drawing text upper case vs. lower case?(OP)
Is there a standard or preference for upper case or lower case lettering on drawings today? 30 years ago everything was upper case.
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RE: Drawing text upper case vs. lower case?
RE: Drawing text upper case vs. lower case?
Chris
Sr. Mechanical Designer, CAD
SolidWorks 05 SP1.1 / PDMWorks 05
ctopher's home site
RE: Drawing text upper case vs. lower case?
ASME Y14.2M-1992, "Line Conventions and Lettering" is where the requirement for letter case is specified. Paragraph 4.3 of this standard states that 'Upper case letters shall be used for all lettering on drawings unless lower case letters are required. (see Figs 14 and 15)'. Figure 14 shows examples of upper and lower case inclined lettering and Figure 15 shows examples of upper and lower case vertical lettering.
GDT_GUY
RE: Drawing text upper case vs. lower case?
Para 1.1.5 states "Notes herein in capital letters are intended to appear on finished drawings. Notes in lower case letters are explanatory only and are not intended to appear on drawings." Nothing about where notes are intended to go, other than on the drawing.
I do agree however that ASME Y14.2M-1992 is the governing standard in regards to lettering, as stated in para 1.2. Unfortunately for me, I do not have a copy of that standard handy, thus my reference to Y14.5.
RE: Drawing text upper case vs. lower case?
RE: Drawing text upper case vs. lower case?
I guess calling "mm" a symbol is how they get around the all capital letters rule.
RE: Drawing text upper case vs. lower case?
The general rule is, if the industry standard abbreviation is either lower case (i.e. "mm") or mixed case (i.e. "Hz") use that on the drawing. All else is upper case.
I think the "all upper case" rule stems from 'the bad old days' of (poor) hand lettering and the "4th generation copy must be legible" requirement. All 'ancient history' in these days of CAD and excellent copiers.
RedPen
RE: Drawing text upper case vs. lower case?
Chris
Sr. Mechanical Designer, CAD
SolidWorks 05 SP2.0 / PDMWorks 05
ctopher's home site
FAQ371-376
FAQ559-1100
FAQ559-1091
FAQ559-716
RE: Drawing text upper case vs. lower case?
Y'all may also want a copy each of the following:
Geo-Metrics III : The Application of Geometric Dimensioning and Tolerancing Techniques (Lowell foster)
and...
ANSI Y1.1 (latest edition) Abbreviations for Use on Drawings and in Text.
Chris in NC
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