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Recent content by mackra

  1. mackra

    ECO form: "IS" "WAS" order

    In the context of an ECO form that is showing the difference between the pre-change state vs post-change state, is there a Y14.X order standard for depicting the change? Or is it more of a preference? For example is it more common to show the pre-change / post-change order as: IS: Post-Change...
  2. mackra

    Correct method for flagging with drawing notes that are indented

    3DD, That makes sense, but I don't think that Solidworks(our CAD package) can format that way. I'll check tomorrow.
  3. mackra

    Correct method for flagging with drawing notes that are indented

    Chris, I'm not using the flag notes for creating a process, I'm wanting to create a process for the correct usage of flag notes and the formatting of such.
  4. mackra

    Correct method for flagging with drawing notes that are indented

    NOTES: 1. STATEMENT ONE. 2. STATEMENT TWO. 3. STATEMENT THREE. 1. SUB-STATEMENT THREE.ONE. 2. SUB-STATEMENT THREE.TWO. 3. SUB-STATEMENT THREE.THREE. 4. STATEMENT FOUR 1. SUB-STATEMENT FOUR.ONE. 2. SUB-STATEMENT FOUR.TWO. 3. SUB-STATEMENT FOUR.THREE. I’ve...
  5. mackra

    Correct method for tolerancing parallelism from a datum (ASME Y14.5)

    Thanks donatim, I appreciate them both.
  6. mackra

    Correct method for tolerancing parallelism from a datum (ASME Y14.5)

    ASME Y14.5 At my work, we don't use GD&T much, nor do I. I'm creating an assy drawing and specifying alignment (parallelism) of one part to another. The two images are sort of representing what I'm wanting to accomplish. Which of the two images below correctly dimension the .351 distance? I'm...
  7. mackra

    Feature qty vs centerline

    I came across this a few minutes ago. It wasn't a hit when I initially searched. The difference being I've included the use of quantity and the common centerline. thread1103-401582
  8. mackra

    Feature qty vs centerline

    Eric Gushiken (Mechanical) 15 Feb 24 06:36 The first and second example are both fine. The 3rd one is redundant but still understandable. It's not a big deal and I wouldn't necessarily say it's wrong. The "standard" or good practice statement was very clear that both are not to be used, doing...
  9. mackra

    Feature qty vs centerline

    Wuzhee (Automotive) 14 Feb 24 07:17 It's fundamentally wrong. You should put 3X to the hole dimension, not the locating dimension. Using the centerline gives the information that the holes lie on a common plane X distance from the side. The locating dimension is common, the hole diameters may...
  10. mackra

    Feature qty vs centerline

    Tmoose (Mechanical) 14 Feb 24 13:09 Is there a mating part with 3 holes? Could be two parts, one part using one hole, the second part using the other two. [i]How is that dimensioned ? Will "basic" dimensions and "true position" tolerancing be used? This is not really a GD&T question, just a...
  11. mackra

    Feature qty vs centerline

    The closest that I had found is from ASM Y14.5 2018, pg 31 , fig 4-15. In that figure with y axis is vertical, x axis is horizontal, the part's centerline and hole centers are coincident. Assume in my example that is not the case. Figure 4-15 doesn't address the case in my sketch and quantity...
  12. mackra

    Feature qty vs centerline

    Hi, Pretty fundamental/basic question, but I'm not finding a reference for the "standard" or best practice statement. I consider it to be double dimensioning if the quantity and centerlines are used simultaneously. Referring the the crude sketch below, the usage of centerlines OR quantity...
  13. mackra

    position of rivet mfgr head

    Hi, I've updated the OP with an image to clarify my question about orientation of subject rivet(s). (B) is most common, is (A) acceptable/allowed?
  14. mackra

    position of rivet mfgr head

    Yeah, pictures = 1000 words. I'll have to draw something up to post here, what I'm working on is proprietary. I think this would be considered a general usage question. But since I haven't used rivets in past designs, I'm afraid I'm a bit of a newbie, ha. One reason that I can think of that the...
  15. mackra

    position of rivet mfgr head

    SWComp - The rivets are universal head, so while they can be flipped, it may not be common practice or recommended. rb1957 - These nut plates are fixed double lug.
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