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  • Users: Andera
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  1. Andera

    ASME Y14.43 and AIAG Gauge R&R rules

    I am designing gauges, but not conducting Gauge R&R’s and I have the following questions regarding the link/connections (or lack thereof) between the gauge standard ASME Y14.43 and AIAG recommendations 1.) Is there a direct link between 10% tolerance assigned to the gauge per Y14.43 and...
  2. Andera

    Second case, profile callout

    I got the following explanation seen below, but I would like to ask if you agree with the assessment? I see here are many GD&T experts that can help me with my follow up questions. Unfortunately, the discussion I had, has been deleted on the original site, as the people there (original...
  3. Andera

    Coaxiality and general tolerance

    ASME world If there is no implied coaxiality tolerance (co-axiality tolerancing of features that are shown to share a common centerline/centermark), but there are implicit zero basic dimensions (both linear and angular, implied by simply showing multiple diameters on a single, common...
  4. Andera

    Circularity - measurement with caliper or micrometer

    What would be the best explanation, in the layman terms if possible, on why circularity CANNOT be measured and qualified (per Y14.5’s definition) with a caliper or micrometer. I was trying to convince and influence people that measuring the local sizes (taking consecutive measurements) and...
  5. Andera

    Datum targets and their relationship

    ASME Y14.5-2009 or 2018 Is there any requirements for datum targets to be related (orientated or located) to its higher precedence datums? Searching for applicable and relevant figures in the 2009 and 2018 standards, I cannot find a single figure where datum targets are used AND the...
  6. Andera

    MBD = Model Based definition and MBE= Model Based Enterprise

    Just for my own information, do you know any good forums where MBD/ MBE issues are discussed and debated. I am trying to learn more about this subject and talking with subject matter experts in this area would be a good idea (at least in my point of view). Please let me know what information...
  7. Andera

    Can I use INDIVIDUALLY notation

    Can I use INDIVIDUALLY notation near the size dimension to break the alignment -simultaneous requirements- between those Ø6mm and Ø10mm holes? (the mutual interrelationship between each other) I've seen it used with profile, but never with position. Is it something wrong to use it...
  8. Andera

    How to calculate wall thickness

    In order to calculate X min. do I need to use the profile tolerance from the general note? Profile|0.5|A|B| is a location control, but runout isn't (as previously discussed below). What do you think? Which FCF should I use to get the correct min. wall...
  9. Andera

    ISO question (CZ and UZ)

    Is it legal to use CZ and UZ in the same feature control frame (for profile or position) ? I searched for specific examples with no lack of finding any. (ISO 1660, ISO 5458, ISO 1101, or others) If okay, how the feature control frame would look like Profile| 3 UZ -1 CZ| A|B|C| or Profile| CZ...
  10. Andera

    ISO translation

    Two questions for the ISO-ASME experts: 1. Is DV -variable distance (ISO symbol) same as translation modifier (triangle) ASME's modifying symbol? If not, what would be the subtle differences? 2. Does CF - contacting feature (ISO symbol) have the same meaning as: BSC "BASIC" (Y14.5) or same...
  11. Andera

    CT

    I am interested to find out if there's a commonality between CT in ISO and CF in ASME 2009/2018. Moreover what would be the differences? Reading ISO, looks like CT cannot be used for features of non-size, but still not clear to me if that's a rule or just some unintended consequences.
  12. Andera

    Basic dimensions - boxed vs. unboxed

    If a drawings has a general profile such as "Unless otherwise specified all features or all surfaces PROFILE within xxx to A|B|C| and a note "All untoleranced dimensions are basic" then what would be the difference between boxed dimensions and unboxed ones (with no direct tolerance)? Is...
  13. Andera

    ISO question

    Ø 60.5 ± 0.25 GN shaft / outside feature specification The specification applies to: A.) upper limit of the cylindrical surface B.) lower limit of the cylindrical surface C.) both upper and lower limits d.) neither specification Will the answer change if the specification is based on ISO 286-1...
  14. Andera

    Position (on curved surfaces) in ISO and 2 other questions (CZ combined zone modifier related)

    ISO GPS 1.) Can I, legally, use position for a curved surface in ISO? I suspect not, but I could if the surface is a planar surface (not curved. Am I correct? 2.) Is CZ (combined zone) usable with an orientation control (parallelism)? 3.) What would be the difference if CRZ is used (instead...
  15. Andera

    Default Profile on an ISO 8015 drawing

    How the Independency principle per ISO 8015 will interrelate with default profile specified via a note on a drawing? Otherwise stated is it acceptable / indorsed to have a default profile note on an ISO GPS drawing? And since simultaneous requirement (equivalent of ASME Y14.5) is not...
  16. Andera

    Profile of a line

    Fig 8-7 /2009: If a profile of a line witin 0.1 to datum feature A (primary datum feature only) is added below the shown profile of a surface, then what will control de size, orientation, form and location of the depicted surface? Still the profile of the surface? Otherwise I am asking what...
  17. Andera

    Individually

    Does the INDIVIDUALLY note nulifies simultaneous requirement? Take Fig 7-37 /2009 for example. If the upper segment (position diameter within 1.4 at MMC) is removed --hypothetical example-- would then the relationship between 3.6 holes still be controlled within 0.4? Also, how would 40...
  18. Andera

    Projected tolerance zone mandatory requirement

    Fig 6-11 from 2009 states: the feature axis must be within the specified tolerance of LOCATION over the projected height. Should I conclude that if a position is used for the threaded hole it MUST have a projected tolerance zone? Is it legal to use the position callout without projected...
  19. Andera

    4-24/ ASME /2009

    Learning ASME stuff and I got the following question: 4-24 / 2009 Is it legal to call A(MMB) in the perpendicularity callout? If yes, then why A is RMB? Otherwise stated, why datum A is MMB in the position and RMB in the perpendicularity?
  20. Andera

    ISO 2768-mK and gage size

    If an outside cylindrical surface (defined on a drawing calling out ISO 2768-mK and DIN 7167) has a diameter of Ø12mm (+0.2 / -0.1) what would the correct “GO” gage size dimension (inside diameter of the gage) to verify this OD requirement? I would appreciate someone with ISO knowledge to help...

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