gd&t

Bye to all, I have a doubt about the use of geometric tolerances of symmetry. I always use a single plan like datum (or axis in a 2d view) not to stumble into misunderstandings. But I happen to see in some drawings even more than one datum, for example two perpendicular planes between them or...

Hello, good afternoon to all, I am a student of aerospace engineering taking a geometric modeling exam. I would have a doubt about gd&t, more precisely the tolerance of location, Thank you in advance who helps me?. My doubt concerns some table harvests in which I noticed that a localization...