Composite tolerances explained

How tolerance zone mobility for a pattern of features is defined by the lower tier of a composite position callout is introduced.

[hitts]

This is probably the best GD&T tutorial ive seen on youtube

[ziadalaswad]

The best GD&t explanation on youtube for sure

[ImproverPerson]

TY for this great content I will watch all videos only for the reason with support to your channel

[RDeanOdell]

Nice work! Your presentation looks good.

[tksambrano]

Great explanation of composite GD&T tolerances!

[-Shadow__Rider-]

I was so confused about this part... Thank you so much for this explanation!

[praveenrai]

Excellent explanation of the composite position tolerance

[francescobiondecchi]

5:32 what means when low tier haven't any datum?

[shiladityamajumdar]

Greetings sir. Great explanation.
I have a doubt. In the composite tolerance, if both datum A and B are mentioned, shouldn't vertical motion be constrained as B restricts vertical motion?

[이종대-un]

thank you
“Composit Position” appears to be meaningless when the part is completely fixed in the assembled state and cannot move or rotate at all.

So, is “composit position” used when parts can move or rotate slightly in the assembled state?
I am curious in what cases “composit position” is applied to part drawings.

[Sam-bqjh]

@2:35 i think we can only translate horizontally as we have a constraints on B, is it correct?

[mukundkumarsharma]

Dear,
Sir, can I Alignment the part using two ( A&B) Datums by DRF Alignment method ...

[sandeshn]

How to calculate position when given composite feature control frame

[tono]

A position referenced to a datum which is a plane becomes a perpendicularity, and positions must be evaluated individually, not together.

[prakashdeshpande]

1) If B & C are the secondary and tertiary datums, there have to be some co- ordinate basic dimensions indicating the desired locations.
2) If any part is under inspection and if every coordinate location is found to have some departure, then how to divide the observed error into two divisions, one allocated to the upper part of the feature control frame and the other allocated to the lower ? Please clarify. Thanks.

[ignatiusjacquesreilly]

What does it mean to rotate with respect to a datum plane (in your example, datums A and/or B)? In math/physics, rotation is defined with respect to an axis -- not a plane. So when the FRTZF tolerance refers to datum A, for example, what rotation is being controlled? Is it rotation with respect to an axis *normal* to datum plane A? And in your first composite tolerance example, the FRTZF tolerance refers to datums A & B. What rotation is being controlled here?

[becauseican]

That cool an all but how will you checked this in the real world without a cmm.

[SlowReactionDriversAreTheWorst]

What is this software called that you are using ?