2009. You're right about contact happening on the conical surface. This just goes back to my confusion about choosing datums. I keep trying to imagine that there needs to be some physical measurement fixture and wasn't seeing that being very straightforward with the conical surface as datums...
I'm just starting to get my feet wet with GD&T and I'm hoping to get some general feedback on this print I'm working on. I start to get confused when the datums are anything but planar faces. The part interfaces on datum A and the two countersunk holes. I appreciate any input or...