14.5m-1982 vs 14.m-1994

[PRuggiero]

Hey guys,

I'm trying to get a list of about 4-5 big changes that you would see between the old ansi y14.5m 1982 and the asme y14.5m 1994. I know it's probably dependent on the drawing but i'm just looking for the big obvious changes.

Thanks,
Pete

 

[fcsuper]

That's fine. Actually ,1994 doesn't go into the 1973 standard, and that was what I was asking about because I've never even seen one of those.

I think the real problem is that they change the purpose of the symbols when creating new ones, when they should prolly create the new symbols with the purpose they changed the old symbols too. I hope they don't do that any more with the new one.

Matt Lorono
CAD Engineer/ECN Analyst
Silicon Valley, CA
Lorono's SolidWorks Resources
Co-moderator of Solidworks Yahoo! Group
and Mechnical.Engineering Yahoo! Group

 

[CheckerRon]

Well the OP was asking what's the differences betwen 1982 and 1994 specs, and since symmetry wasn't even in the 1982, it runs be back to the 1974 spec to define the differences.

I too hope the next standard doesn't change the existing symbols. I understand there are some new ones coming.

As I said, I find symmetry and concentricity virtually useless, and the word is don't use them for surface to surface control.

 

[ctopher]

In addition to the the above, the other difference is about 12 years.

Chris
SolidWorks/PDMWorks 08 3.1
AutoCAD 06/08
ctopher's home (updated Jul 13, 2008)

 

[fcsuper]

Actually, it's 21 years. 1994-1973=21

Matt Lorono
CAD Engineer/ECN Analyst
Silicon Valley, CA
Lorono's SolidWorks Resources
Co-moderator of Solidworks Yahoo! Group
and Mechnical.Engineering Yahoo! Group

 

[CheckerRon]

Gee, I'm glad I didn't go back to UASAI Y14.5-1966. Actually I can't find it. Not sure I still have it.

But then we have WhitmireGT for a historian. I think he remembers what came before MIL-STD-8 Rev.NC

 

[ctopher]

OK, so my tolerance conversion was off a little...

Chris
SolidWorks/PDMWorks 08 3.1
AutoCAD 06/08
ctopher's home (updated Jul 13, 2008)

 

[KENAT]

Not if you're talking the 82 version which is what the OP mentions. Then 12 works for me.

KENAT, probably the least qualified checker you'll ever meet...