AVG and F symbol - fig 8-14/2018

[greenimi]

Figure 8-14 Specifying Restraint for Nonrigid Parts

Is F modifier in the circularity needed in figure 8-14?
I am asking this because in fig 8-13/2018 F symbol has been removed (relative to the equivalent figure 5-13 from 2009)
Why F was kept in 8-14?

 

[Garland23]

I don't think the F is needed in Fig. 8-14, because the restraint note is clearly meant only for the circular runout check and nothing else.

 

[jassco]

Circle F is needed. Otherwise, the roundness will have a different meaning.

 

[greenimi]

Otherwise, the roundness will have a different meaning.

What do you mean by "different meaning" ?

 

[Garland23]

jassco, according to paragraph 8.4.3 of the 2018 standard, I think that the AVG notation already tosses R#1 out the window. So I'd still say that the F is not needed.

 

[ctopher]

I agree the F'n circle (lol) probably not needed.
I don't understand the AVG meaning with the dim.