Like the O.T.L parameter, the number of full holes and half holes are used by engineering for performance calculations. There are some common parameters that will greatly aid engineering by being on the drawing and will speed up the analysis.
With respect to the face or diameter being the...
Appreciate the comments. This is a baffle for a tube and shell heat exchanger. Tubes will run through the holes.
I think the diameter should be the primary datum. I believe the parts fit and function is better fulfilled in the bottom of the image in this thread. I think the face is not an...
Not sure what datum callouts are needed. I have a thin circular disc with a radially symmetric, triangular pitch hole pattern.
I think if I add another 0.292 basic or the 60° basic to the pattern, and change the vertical and horizontal lines through the part to actual centerlines, the holes...
