capitals

[powerhound]

I'm sure I've read before in the ASME GD&T standard that any annotation should be in all caps but I can't seem to find where it is right now. Can anyone help?

Powerhound
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[Finethread]

From the Genium Drafting Standards (base on ASME)

5.3 Letters - Upper and Lower Case - Upper case letters shall be used for all lettering on drawings except lower case letters may be used to conform to established standards, equipment nomenclature, or marking. Height of lower case letters should be two- thirds the size of capital letters. (See Figures 14 and 15).

 

[monkeydog]

ASME Y14.2M-1992 (Line Conventions and Lettering) is real helpful -

4.3 Letters - Upper and Lower Case
Upper case letters shall be used for all lettering on
drawings unless lower case letters are required (see
Figs. 14 and 15).

Note Figures 14 and 15 just show incline and vertical lettering.

 

[KENAT]

Can't remember the reference but if the 'lower case' is significant it should be used. Otherwise upper case per the refs others give.

The most obvious place that 'lower case' is significant is in certain metric units. For instance millimeters should be mm not MM.

 

[Heckler]

Section 1.1.5 Notes. 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.

Section 1.2 References. calls out ASME Y14.2M-1992 Line Conventions and Lettering. I'm sure it's stated in more detail in that spec and I thought we had that spec in house.

Heckler
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[tk369]

the post above may be a bit misleading.

para. 1.1.5 of y14.5-1994 references notes used in the figures in the standard only, not on our drawings.

monkeydog and finethread have answered your question. y14.2m-1992 covers lines and lettering style, etc. genium (actually general electric) has it covered in their own specification.