Something like this:
https://en.wikipedia.org/wiki/Interrupted_screw
:-)
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From Australian Standard AS 1100.101—1992 Technical drawing General principles:
This Standard is in agreement with the following International Standards:
ISO 128 Technical drawings — General principles of presentation
ISO 129 Technical drawings — Dimensioning — General principles, definitions...
Back in good old times using ISO standard tolerances and fits would automatically imply Envelope requirement.
New edition of ISO 286 removed that, but you still can specify Envelope requirement individually if you want your size to also control things like form and orientation.
"For every...
Since no datum is referenced, the frame will only control relations of features to each other.
It still looks like flatness may be not the best choice.
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https://files.engineering.com/getfile.aspx?folder=39328bd9-8b14-4efd-84e0-fa849c99f69b&file=Capture.PNG
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It's hard to imagine something going thru 8000 revisions and still backwards-compatible. (Otherwise new part number is in order) Just ¢2
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Not sure about universally accepted standards, probably more like company standards.
Try this for example: https://files.engineering.com/getfile.aspx?folder=3bc72cfa-87f9-493a-8dfa-61e5a0f3704e&file=thd_relief_chart_2.pdf
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Sorry, didn't mean it.
My thread on the issue already existed, I just was excited to see someone caring about both, SW and GD&T and actually trying to do something.
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fcsuper,
I was wandering: as someone involved with both SolidWorks and Y14.6, maybe you'd take interest in another "unsolved mystery":
https://www.eng-tips.com/viewthread.cfm?qid=474517
Thank you,
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Personally, I think it should be bearable if both call-outs include quantity - N times diameter, N times position, pointing to the same hole circle.
Even that should probably be limited to condition when bulky "all-including" call-out doesn't fit well on the drawing.
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Could it be less than perfect English, so "Deviated Dim" is actually "Dim under Load" or "Work Position"?
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Your plus-minus angle tolerances applies "unless otherwise specified", so as soon as you apply ("specify") geometric controls, you automatically override them, so not to worry.
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https://files.engineering.com/getfile.aspx?folder=340b17f3-434b-464f-98f1-ecfe6c69f37d&file=Capture.PNG
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James,
As you already use DIA 32 as the datum feature A, do you think you can reverse your position requirements?
https://files.engineering.com/getfile.aspx?folder=d5286e32-0902-4541-bd4b-0fbd08f721e0&file=Hex_Bar_Stock_Bore_Position_Problem.jpg
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No need for special design - everything was designed decades ago.
https://files.engineering.com/getfile.aspx?folder=775aa7a0-c1f3-4c2f-aa1b-96c8e4f6d61b&file=images.jpg
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If I understand correctly, you are having problem with applying positional tolerance to reference dimensions. Don't worry, it's legal.
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I am having hard time understanding what the problem is.
Say, you created a fixture to check the part. Part is machined both left-handed and right-handed, but as long as it fits over the fixture it is good.
So, is it really bad and why? It is pretty realistic situation for simple parts like...
How exactly will we get measured position error other than zero?
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