This is probably very basic stuff, but can someone point in to some rules of how to interpret a drawing like this?
What diameter to expect. See attached pdf.
https://files.engineering.com/getfile.aspx?folder=742d1276-14b0-45f2-b03a-a608aa48a5bd&file=Reading_drawing_2768_with_minus_tolerance.PDF
I'm new to GD&T. What's your approach of tolerancing a polygon shape.
'Profile of a surface' as in option 1 locks down a lot.
At first I thought it looked down too much so I tried Method 2 using symmetry, which in the end pretty much did the same as profile of a surface.
Then I thought of...