Drafting symbol

[fergengr]

I have a drawing that has a triangle with an "S" inside of it located to the left of a parallel datum callout. Can someone define this for me?

 

[CorBlimeyLimey]

i guess that would be a "super" dimension.

http://images.google.ca/images?q=tbn:UiwOmXyQcoxRqM:

http://www.superherostuff.com/OtherItems/RefrigeratorMagnets/Images/Superman_Symbol_Magnet2.gif

Helpful SW websites FAQ559-520
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[ctopher]

From SuperASME-y14.5

Seriously, I'm not sure what the symbol means.

Chris
Systems Analyst, I.S.
SolidWorks/PDMWorks 05
AutoCAD 06
ctopher's home site (updated 06-21-05)
FAQ559-1100
FAQ559-716

 

[CorBlimeyLimey]

Triangles are 'usually' used for revisions. Could the revision be that high for your drawing?


Helpful SW websites FAQ559-520
How to get answers to your SW questions FAQ559-1091

 

[xgrigorix]

Well, if it is a revision, there should be a revision history block somewhere on the print. And then we all laugh "Rev S?!?! Rookie."

 

[dingy2]

In the automotive industry, a triangle would mean a "signifcant characteristic" but it does depend upon the Customer.

In GD & T using the older standard, it does mean "regardless of feature size" but I don't think that it applies here.

Looks like a Customer phone call is coming up.

Good luck!

DD

 

[CorBlimeyLimey]

The SW symbol for "regardless of feature size" is an 'S' in a circle ... if I remember correctly.


Helpful SW websites FAQ559-520
How to get answers to your SW questions FAQ559-1091

 

[smcadman]

Sounds like it might be a revision symbol. As for the "regardless of feature size" S in a circle:

http://www.engineersedge.com/gdt.htm

Flores
SW06 SP3.0

 

[ctopher]

CBL, That is correct.

Chris
Systems Analyst, I.S.
SolidWorks/PDMWorks 05
AutoCAD 06
ctopher's home site (updated 06-21-05)
FAQ559-1100
FAQ559-716

 

[controlnovice]

Maybe the drafts'person' (you can never be sure these days), mistook the number 5 for the letter S....

In that case, the revision would be the 5th one.

I see it quite often in other things, but never before in a revision triangle. That's pretty standard.

______________________________________________________________________________
This is normally the space where people post something insightful.

 

[ctopher]

If the drafter knew about standards, he/she should know that "S" is not used as a rev, for that reason of mistaken as a 5.

Chris
Systems Analyst, I.S.
SolidWorks/PDMWorks 05
AutoCAD 06
ctopher's home site (updated 06-21-05)
FAQ559-1100
FAQ559-716

 

[ewh]

A guess here... could it be a statistical measurement?

 

[xzwhhl]

Hello all,

I think is a special note regarding to this dimension or datum.

ASME Standars using it as a square whith a number inside & connecting whith a specific Note.


May be this is a variant way.

An example will be:

dimension = "(square with 1)" 6 -/+ 0.3


and at general notes section will be says:

1. This dimension applys before be bended (then this is now an "especific note")


Sorry for my english jeje


Saludos desde Mexico

 

[RubenGman]

XZWHHL,

If you have no company specific standards governing a non-ASME-Y14 symbol, then consider revising the symbol to current standards to clarify it's meaning....no todo lo que es escrito es ley.

Which part of Mexico....Puebla?

 

[FrenchCAD]

A guess here... could it be a statistical measurement?

I do believe it is some sort of critaeria to highlight key characteristics (kinda like KPCs and KCCs).

I am almost sure I saw some of these on drawings. I'll look at that

Cyril Guichard
Mechanical Engineer Consultant
France

 

[LuisenP]

This triangle with S inside mean a Safety Weld.

Please, if you have any cuestion let me know,


Iam Luis E. Peña, from Mexico

 

[TheFeds]

A guess here... could it be a statistical measurement?

I've seen "S" in a diamond used for this purpose, but not a triangle.

 

[MechNorth]

LuisenP,
Is that a standard symbol or a "commonly used" one? Is it possible to provide a reference for those interested?

Tks

Jim Sykes, P.Eng, GDTP-S
Profile Services
CAD-Documentation-GD&T-Product Development

 

[chevy1000]

We use triangles to designate flag notes.