We have been doing it for years, once we recieved formal training for GD&T. The instructor was the one who suggested it for us however I'm not sure if anyone actually fully understood it, it was just more of a CYA (cover your ass) note for most people. We have recently jumped into standardizing...
Let me explain a little better... I attached an example of what we place on our prints to cover basic dimensions.
We use a general profile note for basic dimensions instead of ± dimensions (2, 3 and 4 decimal places and the angle callouts). Here's why...
The ± does not relate back to any...
Just out of curiosity, what is your general tolerance call out for basic dimensions?
We have a general profile gtol call out for basic dimensions. At times it can eliminate the need for so many DRF's and allows for better control of form and orientation than plus/minus tolerances