[SH...] Posted April 28, 2020 Share Posted April 28, 2020 26 years old drawing!!, it is allowed to use older version of drawings?. I think we should keep pace with time. Link to comment Share on other sites More sharing options...
[Ia...] Posted April 28, 2020 Share Posted April 28, 2020 Please sign in to view this quote. I've seen some drawings that were last updated in the 1970s that are still active today. They don't have any datums. They have position and profile feature control frames with just no datum reference frames at all. It's wild. Link to comment Share on other sites More sharing options...
[Ri...] Posted April 28, 2020 Share Posted April 28, 2020 Back in my day you didn't need GD&T, all you needed was a hammer! Link to comment Share on other sites More sharing options...
[An...] Posted April 28, 2020 Share Posted April 28, 2020 Just a proposal. See attached.Contribution_28_04_2020_3.pdf Link to comment Share on other sites More sharing options...
[Cl...] Posted April 28, 2020 Share Posted April 28, 2020 Why is it necessary to remove what you did from the right side? Link to comment Share on other sites More sharing options...
[To...] Posted April 28, 2020 Share Posted April 28, 2020 Please sign in to view this quote. I think it is because of the confusion created by the word PROJECTION. It now shows the length of the evaluation range. And, as long as you evaluate 14, it doesn't matter where it is as long as the evaluation range is 14 long and the tolerance zone is perpendicular to A. Here we go again....LOL Link to comment Share on other sites More sharing options...
[An...] Posted April 28, 2020 Share Posted April 28, 2020 Please sign in to view this quote. Yes! Of course. And the standard isn't always the bible. Link to comment Share on other sites More sharing options...
[An...] Posted April 28, 2020 Share Posted April 28, 2020 Please sign in to view this quote. Somebody is willing to explain what "PROJECTION" is ? Link to comment Share on other sites More sharing options...
[SH...] Posted April 28, 2020 Share Posted April 28, 2020 Please sign in to view this quote. Please don't mistake me I am telling the fact.... Please understand that the standards are developed by members in the governing committee of ISO and ASME. They are extremely talented and skilled people and they should have profound knowledge in the GD and T, I think majority of them are PhD holders. I think you are betting on a wrong horse.. Link to comment Share on other sites More sharing options...
[Me...] Posted April 28, 2020 Share Posted April 28, 2020 Please sign in to view this quote. I can't tell my customers and upper management that the standard "isn't always the bible". You wouldn't have a job let alone customers if you didn't follow the standard that is represented on every ASME & ISO print, it is literally a contract if you think about it. I would love to have seen Andreas sit down and have a nice conversation with Mr. Don Day (RIP) 🤣 Link to comment Share on other sites More sharing options...
[Er...] Posted April 28, 2020 Share Posted April 28, 2020 Iv'e said it before, and I say it again. No one follow the ISO standard fully. If you say you do, you either don't know how Calypso works, or you don't know the ISO standard. 🙂 *One small clasule: If you have simple parts, with out significant deviations, and measure like a diameter.. Then maybe.. Link to comment Share on other sites More sharing options...
[An...] Posted April 28, 2020 Share Posted April 28, 2020 Please sign in to view this quote. I totally agree. My apologies. For me it's irritating to see that there is obviously a significant high qote of faults in the ASME. Link to comment Share on other sites More sharing options...
[Me...] Posted April 28, 2020 Share Posted April 28, 2020 Please sign in to view this quote. The ASME Y14.5 should also be included in that statement.... 😃 Link to comment Share on other sites More sharing options...
[Ri...] Posted April 28, 2020 Share Posted April 28, 2020 Please sign in to view this quote. 100% in agreeance here. I've gone to multiple trainings regarding both standards, and one thing that I have found over and over is that a vast majority of designs do not follow the standards. At the end of the day they are guides to help people measure parts the same way, but if a design team decides to have something measured/interpreted a different way that is their choice and what they are paying money for. There is no congressional law that states that either standards have to be followed or be punished. I'm glad that someone asked a question that drew a lot of responses, but majority of the time the correct response is to ask the design engineer and get their intent. Link to comment Share on other sites More sharing options...
[An...] Posted April 28, 2020 Share Posted April 28, 2020 Please sign in to view this quote. That's right. Link to comment Share on other sites More sharing options...
[Ch...] Posted April 28, 2020 Share Posted April 28, 2020 Isn't ASME B89.7.2 entirely about how the standard isn't the bible when it comes to measurement planning??? Don't get me wrong, I use Y14.5 all of the time and I love all of the Y14.5 knowledge we have on this forum; However, B89.7.2 is really the more interesting standard in the metrology world in my opinion.CMM-GDT_Measurement_Planning_Hand-Out (1).pdf Link to comment Share on other sites More sharing options...
[Da...] Posted April 28, 2020 Share Posted April 28, 2020 Please sign in to view this quote. It is used if you want to evaluate the Perp over a longer or shorter length then the feature. The shifted evaluations from Datum -A-. Has no change for Perp if the evaluation length is the same. But the GD&T standards for ISO and ASME are showing you how to use the callout. Look at it as way to interpret the projection callout for all GD&T. They don't explain every callout for all GD&T symbol. They only show you one or two example and explanations for the callout. Then it is up to you to apple as it is needed and what you want to control. It is a standard and explain of how to apple that standard that is it. It is not a part you have to measure. Everyone here is really over thinking this whole thing. Explanation, Explanation, Explanation, Nothing more Intent is still up to the user. Link to comment Share on other sites More sharing options...
[Da...] Posted April 28, 2020 Share Posted April 28, 2020 test Link to comment Share on other sites More sharing options...
[Jo...] Posted April 28, 2020 Share Posted April 28, 2020 Please sign in to view this quote. Is english your second language, or are you using your phone ? some of your post are incoherent Link to comment Share on other sites More sharing options...
[Da...] Posted April 28, 2020 Share Posted April 28, 2020 Please sign in to view this quote. 🙂 Link to comment Share on other sites More sharing options...
[Ch...] Posted April 28, 2020 Share Posted April 28, 2020 When you blame everyone else. https://careers.workopolis.com/advice/f ... em-is-you/ Link to comment Share on other sites More sharing options...
[Da...] Posted April 28, 2020 Share Posted April 28, 2020 Please sign in to view this quote. ???? Link to comment Share on other sites More sharing options...
[Ch...] Posted April 28, 2020 Share Posted April 28, 2020 Dan, I'm talking about you specifically. As in, you are the problem. Link to comment Share on other sites More sharing options...
[To...] Posted April 28, 2020 Share Posted April 28, 2020 Please sign in to view this quote. My statement all started when we were discussing Calypso and the Projection option. Let's say the cylinder is 8 long with a perp projection of 14. When you select the Projection option, the Reference Length defaults to the cylinder length of 8 and graphically depicts that length using yellow arrows down inside the cylinder. By changing the Ref Length to 14, it changes the arrow length to 14. Even though the arrows do not originate at Datum A, the result is the same and when I posted the fact that the location of the arrows did not matter, someone challenged me on this. And, that is when the forum exploded. Everybody went nuts. Oh. Wait a minute. You were the only one that went nuts and quite rudely, I might add. So, having a location of the evaluation range (32-7) in the ISO spec is no different than showing a P of 25. That is what prompted a couple of us to make a statement regarding the bogus nature of that single element in the spec, not the whole spec. Now, when we do projection on a position to multiple datum features, then it does matter where the yellow arrows are. Thanks a lot Shabu....LOL Link to comment Share on other sites More sharing options...
[Da...] Posted April 28, 2020 Share Posted April 28, 2020 I'm sorry for making everyone feel bad? 😃 Link to comment Share on other sites More sharing options...
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