Composite Position Again and Again

[[Ty...]]

So im pretty sure i understand composite position inside calypso, and the GD&T behind it.
my question is Composite position on a single bore/hole. the videos i've watched only seem to talk about patterns.

i have alot of prints in my company that have a Composite FCF on one bore. is this legal.?

[[To...]]

Since you didn't post an image of your example, I'm only guessing that this may be relevant.

Here's a link that describes the differences between composite and Multiple Single Segment tolerances.

https://www.gdandtbasics.com/composite- ... olerances/

[[Ty...]]

here is an example of what im seeing at my place.
its just one bore

comp print question.PNG

[[To...]]

Is it legal? Not sure.

It appears to be a refinement of the position tolerance. In other words, a looser tolerance relative to 3 datum features but a tighter tolerance to 2 datum features. They could have used a tighter tolerance on the top tier and eliminated the need for the lower tier but that might reject parts that are still good functionally.

Check out this video. It's a long one but later in the video, he goes into several aspects on this.
https://youtu.be/iSdMpgVxeDg


On a side note, I predict this will be the next topic for one of the forum's German experts (AB)....