Full R meaning

[Manuel061072]

Who can help me to interpret this requirement?
Thanks!

 

[KENAT]

FULL R means Full Radius.

However, while your image is too low resolution to be sure I'm not sure they're showing a full radius.

Posting guidelines faq731-376

http://eng-tips.com/market.cfm?

(probably not aimed specifically at you)
What is Engineering anyway: faq1088-1484​

 

[Manuel061072]

I appreciate your help KENAT!
And what about .005 max. flat (optional)?
Thanks.

 

[ctopher]

Possibly an optional flatness of .005.
Full R or flat.
Check the mating part.

Chris
SolidWorks 13
ctopher's home
SolidWorks Legion

 

[MadMango]

I always thought that FULL R required both edges of the radius to be tangent?

Not sure what the .005 MAX FLAT (OPTIONAL) means.

"Art without engineering is dreaming; Engineering without art is calculating."

Have you read faq731-376 to make the best use of these Forums?

 

[ewh]

My guess is that the "FULL R" can be such that it leaves a .005 max diameter flat at the center (FULL R +.0000/-.0025?).

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

 

[ctopher]

ewh,
It could also mean that. It's vague enough to have more than one meaning.


Chris
SolidWorks 13
ctopher's home
SolidWorks Legion

 

[drawoh]

Manuel061072,

I think whoever prepared that drawing was confused.

I have seen "FULL RAD" used to show that the round thing at the end of a slot was a radius with R being half the width of the slot. Today with ASME Y14.5, you must mark it with an "R".

Perhaps the drafter means "SR", meaning that it is a spherical radius of some sort, as per ASME Y14.5.

--
JHG

 

[Manuel061072]

Thanks for all your comments!
I am sorry I am not more clear since English is not my native language
Regards.

 

[powerhound]

Do you speak Spanish?

John Acosta, GDTP S-0731
Engineering Technician
Inventor 2013
Mastercam X6
Smartcam 11.1
SSG, U.S. Army
Taji, Iraq OIF II

 

[ctopher]

SR makes more sense to me.

Chris
SolidWorks 13
ctopher's home
SolidWorks Legion

 

[ewh]

SR would be correct except for the allowable flat.

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

 

[Manuel061072]

Así es John, hablo Español. Saludos.

 

[Keith1029]

My guess would be a the intent is an SR with the option to leave a .005 max diameter flat at the center (FULL R +.0000/-.0025?) as ewh suggests, or possibly a flat that is cut back a distance of .005 from the theoretical perfect form tip as another interpretation.