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  1. CheckerHater

    Proper GD&T for interrupted threads?

    Something like this: https://en.wikipedia.org/wiki/Interrupted_screw :-) "For every expert there is an equal and opposite expert" Arthur C. Clarke Profiles of the future
  2. CheckerHater

    ASME Y14.5 vs ISO 1101 in Australia / internationally

    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...
  3. CheckerHater

    Sliding fit using GDT

    My apologies. "For every expert there is an equal and opposite expert" Arthur C. Clarke Profiles of the future
  4. CheckerHater

    Sliding fit using GDT

    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...
  5. CheckerHater

    ISO - Flatness CZ of Offset Features

    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. "For every expert there is an equal and opposite expert" Arthur C. Clarke Profiles of the future
  6. CheckerHater

    ISO - Flatness CZ of Offset Features

    https://files.engineering.com/getfile.aspx?folder=39328bd9-8b14-4efd-84e0-fa849c99f69b&file=Capture.PNG "For every expert there is an equal and opposite expert" Arthur C. Clarke Profiles of the future...
  7. CheckerHater

    Full list of ASME allowed letters for revisions and view labels

    It's hard to imagine something going thru 8000 revisions and still backwards-compatible. (Otherwise new part number is in order) Just ¢2 "For every expert there is an equal and opposite expert" Arthur C. Clarke Profiles of the future
  8. CheckerHater

    internal and external thread undercut

    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 "For every expert there is an equal and opposite expert" Arthur C...
  9. CheckerHater

    Is anyone using or know of anyone else using Schematic Thread display on drawings?

    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. "For every expert there is an equal and opposite expert" Arthur C. Clarke Profiles of the future
  10. CheckerHater

    Is anyone using or know of anyone else using Schematic Thread display on drawings?

    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, "For every expert there is an equal and opposite expert" Arthur C. Clarke Profiles of the future
  11. CheckerHater

    Position of CD&T callout

    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. "For every expert there is...
  12. CheckerHater

    I am not sure what this 'deviation table' means.

    Could it be less than perfect English, so "Deviated Dim" is actually "Dim under Load" or "Work Position"? "For every expert there is an equal and opposite expert" Arthur C. Clarke Profiles of the future
  13. CheckerHater

    Datum Feature Controls (Qualifying Datums) with Angle Tolerances

    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. "For every expert there is an equal and opposite expert" Arthur C. Clarke Profiles of the future
  14. CheckerHater

    Duplication of letters for views, detail, sections datums etc

    https://files.engineering.com/getfile.aspx?folder=340b17f3-434b-464f-98f1-ecfe6c69f37d&file=Capture.PNG "For every expert there is an equal and opposite expert" Arthur C. Clarke Profiles of the future...
  15. CheckerHater

    GD&T - Position of bore relative to stock bar hex

    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 "For every expert there is an equal and...
  16. CheckerHater

    ASME Y14.5 Figure 7-18

    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 "For every expert there is an equal and opposite expert" Arthur C. Clarke Profiles of the future...
  17. CheckerHater

    ASME Y14.5 Figure 7-18

    Can be connections for flexible hoses. "For every expert there is an equal and opposite expert" Arthur C. Clarke Profiles of the future
  18. CheckerHater

    Inspection of individual piece parts feature in the assembly

    If I understand correctly, you are having problem with applying positional tolerance to reference dimensions. Don't worry, it's legal. "For every expert there is an equal and opposite expert" Arthur C. Clarke Profiles of the future
  19. CheckerHater

    Feature called out at 45 deg from clocking datum

    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...
  20. CheckerHater

    Self-referencing or not

    How exactly will we get measured position error other than zero? "For every expert there is an equal and opposite expert" Arthur C. Clarke Profiles of the future
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