Spherical Radius Notes

[Benny_74]

Good day:
I have a casting drawing that states SR on some places, the issues is that depending of other features sizes the SR is present or can be buried due MAX o MIN dimensional on those other features, does anyone know a note that can be placed on the drawing stating the SR is inspectable is SF is shown or present?


Thank you for your help

 

[3DDave]

What is the purpose of the feature that doesn't have to be there?

 

[Benny_74]

According with the investigation, the way it was modeled the spherical radius will be seen in the nominal/minimal condition of the fillet but not in the maximum, that's why i need a note saying that the SR is inspectable only if shown or visible.

a purpose for the SR, i can not find it, but i assume is there to give extra material when machining.


thank you

 

[mfgenggear]

Op
How old is the drawing date wise.
One option ask for clarification from the customer.
If they insist then your stuck.

The reason I asked if this is a new drawing
There is more leeway for a BP change.

 

[CWB1]

I will gladly assist anybody that needs help, but I refuse to approve moron notes on design prints or otherwise baby so-called "professionals" responsible for $$thousands-millions. If your print callouts allows everything from a sharp edge to radius then no note is needed. This is like the "break all edges" note that some add in addition to edge callouts - it makes you wonder if the designer/drafty understand the rest of the print.

If the quality dept wants to put a note on their process sheets or red-pen their local copy that's their decision, but I wouldnt add a note.

 

[WKTaylor]

I have watched young engineers struggle as they try to interpret old/worn/dirty vellum drawings... to make their ultra-precise CATIA models.

Never hurts to have and 'old guy and a sample part' for reference...

Regards, Wil Taylor
o Trust - But Verify!
o For those who believe, no proof is required; for those who cannot believe, no proof is possible. [variation, Stuart Chase]
o Unfortunately, in science what You 'believe' is irrelevant. ["Orion", HBA forum]
o Only fools and charlatans know everything and understand everything." -Anton Chekhov

 

[mfgenggear]

OP
It's not uncommon a process engineer will tighten tolerance while manufacturing to maintain attributes
On the drawing. This may be one of those cases.