rollingcloud
Aerospace
- Aug 9, 2022
- 172
I have this drawing done by someone else, I am trying to get an better understanding of the tolerances for the highlighted dims. The yellow surface is the datum C. I believe the intention of the drawing is to have a single profile tolerance controlling everything, which is why all dimensions are basic. However, is this the correct approach? My understanding of profile tolerance is that it stops at any radius change unless otherwise specified, either by locating segment points or using the all-around symbol. Therefore, in this case, the profile tolerance would only apply to the red surface. If this understanding is incorrect, how can I modify the profile tolerance callout so that it's connected to all the basic dimensions?