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    Use the Drawing title block linear tolerance to control a Diametrical callout size - is it correct?

    Would that diametral 67.5 size tolerance be covered with that linear tolerance note on the drawing notes?
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    Profile tolerance unless otherwise specified - WRT Datums vs no datums

    Refloating this In regards to that, wouldn't the para. 11.3.1.5 in Y14.5-2018 cover the all over? It doesn't specify to say "all over" when you place the note in the drawing general notes? "All Over Specification. A profile tolerance maybe applied all over the three-dimensional profile of a...
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    Profile tolerance unless otherwise specified - WRT Datums vs no datums

    Got it. As mentioned above if the note "model is basic" that would mean no basic dimension is needed for the surface profile to control the location? is that on the Y14.41 standard (I don't have access to it) mentioned in paragraph 5.1.1.2 (d) : "Basic dimensions shall be indicated on the...
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    Profile tolerance unless otherwise specified - WRT Datums vs no datums

    But like True positions implies "the theoretically exact location of a feature of size, as established by basic dimensions" The True profile doesn't relate the location to a basic dimension?
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    Profile tolerance unless otherwise specified - WRT Datums vs no datums

    Thank you both for your replies. Where in the 2018 standard implies that the surface profile controls location only when there is a basic dimension? I can't find it. I guess using the "all over" from that paragraph should work in that case. But, personally, I a trying to convince the designers...
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    Profile tolerance unless otherwise specified - WRT Datums vs no datums

    Got it now, with that wording I understood. I knew I was missing something but couldn't picture what. Thanks!
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    Profile tolerance unless otherwise specified - WRT Datums vs no datums

    But then, on my example above, aren't the tolerance zones the same on those surfaces for a surface profile with datums and with no datums? like couldn't both surfaces on both figures be anywhere in between the red dashed lines? I never paid attention to that figure, I wonder, if the control was...
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    Profile tolerance unless otherwise specified - WRT Datums vs no datums

    Isn't it profile with datums contoling shape, size, orientation and location, as mentioned above, and without datums same but no location? But I guess what I don't fully understand, if I had let's say a block with datums ABC being a plane, hole and slot, all of them prequalified. Then a surface...
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    Profile tolerance unless otherwise specified - WRT Datums vs no datums

    Hi, I have read some post but I didn't fin a clear answer for this question. When you have a drawing with datums defined, and a general note saying "Unless otherwise specified profile tolerance of: " What is the difference between having that surface profile called out back to datums or called...
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    GD&T How to control a hole on a moving assembly?

    Appreciate your answers, as you said, unfortunately I am kind of stuck with the creation of that drawing. I understand your reasoning but let me explain the "workflow" that I have in mind, it kind of makes sense in my head but I might be wrong: Part level drawings are created, and parts will be...
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    GD&T How to control a hole on a moving assembly?

    Thanks for your thoughts! Is not that we will measuring in the CMM every single of these assemblies, but we need the Assembly level drawing, that was why I wanted to know the best wat to call that hole out in the drawing. If later we measure a few times on the CMM and then use more often a gage...
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    GD&T How to control a hole on a moving assembly?

    This is a good idea, but I kind of wanted to have it as simple and faster as possible. That's why I was thinking on the customized DRF. If parts are in spec at part level they won't be rejected at the assembly level. Assembly level drawing will come from the stack up, so spares part should work...
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    GD&T How to control a hole on a moving assembly?

    Part is a single arm that can rotate around the hole. There are drawings at part level and stack up has properly been done, but I need the assembly level drawing as well with that hole called out. I tought about a fixture like has been metioned avobe, with the proper GR&R to make sure it's...
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    GD&T How to control a hole on a moving assembly?

    Hi, I have this assembly where the green part is attached to the blue one, but green part can rotate around the attachment axis to the blue part. The distance from the holes on the blue part to the hole on the green is critical. Being B and C the holes on the blue part, I am wondering how I...

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