Proper way to dimension diameter of cylinder
I am struggling with the proper way to dimension the diameter of a cylinder.
The thing that I am most concerned about is that the maximum circumscribed diameter is no larger than 4.5mm.
The issue that we have had in the past is that we specified a diameter tolerance of 4.5mm +.00/-.125 but, we ended up with a "TRI lobe" shape where the circumscribed diameter was measuring 4.6mm and wouldn't fit in the hole.
I cant decide if I give a diameter tolerance of 4.38 mm +/-.062 and a circular tolerance of .06mm.
My head hurts........