How to insert surface symbol in ugnx drafting

[holyghost]

Hi
How to insert a surface symbol like maching, grinding symbols ( 2 triangles for milling or turning, 3 triangles for grinding)
I tried but I am getting Ra symbol

Thanks

 

[jerry1423]

Are these triangles per a certain drafting standard?
What version of NX are you on?

 

[holyghost]

Dont knoe , But why Am insisting this, I gave a drawing to my vendor , just he milled the part actually I need grinding all faces , I asked my vendor it needs grinding allover, he asked that you didnt mentioned grinding symbol.
Thanks

 

[jerry1423]

Well, you can specify grinding using standard finish symbols, instead of your triangles.
I think the last time I saw a finish specified the way you are describing was something like 30 years ago.

 

[ProgressiveRacing]

Specify the appropriate surface finish. Use GD&T to 'drive' the manufacturing process towards grinding if that is what is needed.

 

[jerry1423]

I guess this way of specifying finish does come from a standard, but I don't know much about it.

http://www.eng-tips.com/viewthread.cfm?qid=15637

 

[Jcal19]

THERE IS SOME SYMBOLS UNDER "SURFACE FINISH"----"LAY SYMBOLS" (LIKE "C" AND "M" ECT)