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Drafting Note Numbering Standards?

Drafting Note Numbering Standards?

Drafting Note Numbering Standards?

(OP)
Hello, I recall back in the days when a drawing checker had told me that on a multi-sheet drawing, detailing different parts, the same note numbers cannot be reused. I mean, if the sheet 1 contains notes # 1 thru 10, the second sheet cannot have the same note numbers...they should have different numbers (e.g. 11 and on, etc.)

Although this makes sense to avoid confusion, but just wanted to know if there is a standard dictating this fact. I looked in the ASME Y14.100-2004 but could not find specifically anything on this.

Any advice or information is appreciated,
Thanks in advance!

RE: Drafting Note Numbering Standards?

You are right, it looks like Y14.100 provides very basic guidance, and actual appearance of the notes is left to developer.
Nevertheless the following rules are followed in most cases (the list is definitely not complete):

Notes should be numbered consecutively starting with number “1”. Generally notes are placed in the upper left corner reading from the top down.
Notes that are deleted need not have the void filled in. The number of a deleted note should not be used for another note.
When the same note is used on more than one drawing, it should read the same.
On multi sheet drawings, start with note 1 on the first sheet and the next consecutive number on sheet 2. If there are no notes on sheet 1, it should be noted which sheet(s) contains the notes.

If you positively need some document that states rules for notes "in writing", try to research old military or NASA standards.

I hope this helped.

RE: Drafting Note Numbering Standards?

"The number of a deleted note should not be used for another note."
This is important in that the fabricator may be very familiar with the previous drawing version and could easily miss the note change, resulting in what could be expensive mistakes on his part if strict attention is not paid to the revised drawing. Also, drawing notes are frequently used in other documentation, and it is much easier to investigate an erroneous note number if the drawing note is not repurposed.

“Know the rules well, so you can break them effectively.”
-Dalai Lama XIV

RE: Drafting Note Numbering Standards?

(OP)
Thanks Kenat, I'll take another look into these sections specifically.

Regards,

RE: Drafting Note Numbering Standards?

Quote:

When the same note is used on more than one drawing, it should read the same.
Notes can read? Anyway, if it doesn't read the same, is it the same note?

Quote:

If there are no notes on sheet 1, it should be noted which sheet(s) contains the notes.
Sheet 1:
Note 1: There are no notes on this sheet. Notes are on sheet 2.

RE: Drafting Note Numbering Standards?

2thumbsup

“Know the rules well, so you can break them effectively.”
-Dalai Lama XIV

RE: Drafting Note Numbering Standards?

Sort of like the note in some books or technical standards that reads:

This page intentionally blank.

In which case it isn't.

----------------------------------------

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.

RE: Drafting Note Numbering Standards?

I always read it as "This mind is intentionally left blank”

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