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  • Users: mackra
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  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

    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...
  3. 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...
  4. 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...
  5. mackra

    position of rivet mfgr head

    I have not used rivets or riveted nut plates in previous designs, so asking a stupid question. Referring to the image below, I believe it's common or recommended practice to orient the rivet such that the shop head is on the nut plate (B). Is it 'permissible' to have the mfgr head on the nut...

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