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  1. aniiben

    Gap in a feature of size

    I have a faucet plastic component which has gaps/ interruptions along the circumference of an outside diameter. I cannot share the entire part, but something which is very similar is shown below. The outside diameter has 8 gaps around the 360° degrees which creates 8 arcs. How can I define those...
  2. aniiben

    How to interpret those dimensions ?

    Couple of questions: 1.) If drawing shows ASME Y14.100 only, should I understand that rule#1 is enforced? Or only if ASME Y14.5 invoked directly (shown on the face of the drawing) implies envelope principle being in charge? 2.) How to interpret what tolerances are applicable to the dimensions...
  3. aniiben

    ISO and Individually note

    ISO 16792:2021 it is for MBD, but my question is not really related with it even it is invoked in the TDP (Technical Data Package). 1. If a pattern has 5 holes and only one hole is detailed, then what is the best way to show that are actually 5 holes? 5x under the detailed view or 5x for the...
  4. aniiben

    Movable datum target on flexible parts

    Do you think movable datum target could be used on flexible parts - subject to free state variation? Or maybe the standard's intent has always been to use it for rigid parts only? Any examples, books, training materials to support this approach.
  5. aniiben

    ISO 8015 and envelope requirements

    When on an ISO drawing that has ISO 8015 already specified, the designer wants to have the envelope requirement enforced, does he need to specify also ISO 14405-1 along with circled E or just circled E is enough somewhere close to ISO 8015 already shown? So, is ISO 8015 E a valid ISO GPS...
  6. aniiben

    ISO concentricity modified at MMR legaliity

    Is it legal according to ISO for those two callouts: Concentricity 0.1 M R to A ACS Or Concentricity 0.3 M to A(M) ACS I know without ACS modifier wouldn't be an issue, but I am not sure about with ACS. Not sure what the designer wanted, but for now I am questioning the callouts legality.
  7. aniiben

    Simulators

    I am sure the simulators issue has been discussed before but I cannot find the thread: common datum C-D shown in runout section should be expand simultaneous or separately? Otherwise stated if one simulator reaches its maximum, is the second one keeps expanding or stops expanding?
  8. aniiben

    ASME multi-leader lines and common datum feature

    Sanity check: Are these two schemes valid in ASME? Is they are kosher per Y14.5, then are they clear enough?
  9. aniiben

    O-ring groove

    Based on your individual experience, does anyone know if a gland groove detail should be defined with GD&T? All catalogs found online have angles with plus minus (zero degrees to 5 degrees Typ.) for the sides (groove sides) along with the groove depth and groove width. How would you GDT this...
  10. aniiben

    Law of diminishing returns and GD&T - open discussion-

    Is the law of diminishing returns applicable to GD&T? In other words when the usage of GD&T became exessive or when someone become too anal? Maybe there is an industry specific issue? Open ideas welcomed.
  11. aniiben

    Circularity versus self-referencing circular runout

    I read some discussions about self-referencing runout (circular and total) and I'm trying to understand why cylindricity could be considered "equal" to "self- referencing" total runout, but not the same thing could be said about circularity and circular runout. No practical application. Just...
  12. aniiben

    ISO 13715 edges condition

    Does anyone know the equivalent of ISO 13715 in ASME? If there is no such a document, would you consider an acceptable practice to call out ISO 13715 on an ASME Y14.5 defined drawing? Otherwise stated, instead of writing lengthy notes to define the edge condition (undercut-passing /...
  13. aniiben

    Validity

    Inspired by a statement made in a previous discussion and also by some of my misunderstandings of the standard’s intent on dealing with datum features of size called at RMB and also at MMB, I would like to ask the members of this forum how would you consider the datum reference frame shown in...
  14. aniiben

    Questions Y14.5-2009

    Q1: If in fig 4-24, the size of the tolerance zone of datum feature A is changed from zero at MMC to 0.5 RFS (for example), would the new scheme make sense ? I am asking from the fact that now datum feature A is modified at MMC in the position callout for the 8mm hole and RFS for its own...
  15. aniiben

    Zero planes

    4.10.3/2009 states: Depending on the number of planes established by higher precedence datums, secondary and tertiary datum axes may establish zero, one, or two theoretical planes. My question is: which figure shows Zero theoretical datum planes (if an example of such is shown) If not, can...
  16. aniiben

    Alex Krulikowski workbook -"max dimension 2.15" shown on the minimum X distance

    If the objective is to calculate the minimum distance then why 2.15 maximum is value SHOWN has to do with the correct answer. As far as I understood the correct answer for minimum distance is: 0.15. The maximum X distance is 2.85. Then what 2.15 is good for? What is the meaning of 2.15 value?
  17. aniiben

    Fig 7-27 (Y14.5-2009) and datum feature long holes

    If straight bolts are going to be used into the holes of a part similar to the one from fig 7-27 (Y14.5-2009) and the thru holes are secondary datum feature ( as per the part function) how to specify in GDT language that the holes (as a pattern) are datum feature? Lets say Surface C is primary...
  18. aniiben

    Fig 4-48 and origin of dimensions / measurements

    Fig 4-48 from Y14.5-2009 I am trying to find the origin of dimensions, origin of measurement or Datum Point 0,0,0 for the part shown in fig 4-48 page 86. Four datum planes are shown and therefore creates a little bit of confusion on where the origin of dimensions might be. For reference see...
  19. aniiben

    B.6 Coaxial Feature

    Does anyone have any idea on how to understand this formula: H1 +H2 =F1 +F2 +T1 +T2 Trying to get a full picture "where din formula is coming from" and how it is driven from the applicable virtual conditions boundaries.
  20. aniiben

    DATUM TARGETS

    ASME Y14.5-2009 4.24.12 Secondary Datum Axis For MMB, the centering method used to establish the datum axis has a set of three equally spaced features set at a fixed radial distance based on the MMB. Regarding fig 4-53: Question: Should I understand that if B had been callout at MMB in the...

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