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 Author Topic:   The correct way to read the gage is?? elbeeLurker (<10 Posts) Posts: 1From:Mentor, OHRegistered: Jan 99 posted 08 January 1999 04:03 PM                Hello everyoneSay that I have a part with a feature that is supposed to measure 0.111 +/- .001 according to the drawing.The gage I am using to measure this has an accuracy of 0.0000Would a reading of .1121 be acceptable? Would .1126? The argument here at work is (Eng.) the gage is capable of measuring to .0000 so we SHOULD take advantage of that and use tighter measurment. The other side (QA) says that although the gage is capable, the feature is only designed to .000 so nothing past the third decimal place should matter. Is there any guidance out there on this?Thanks IP: Logged Marc SmithCheech Wizard Posts: 4119From:West Chester, OH, USARegistered: posted 08 January 1999 09:57 PM                Take a look at:https://elsmar.com/ubb/Forum5/HTML/000027.htmlI'll respond here as well (maybe tomorrow or Sunday) and I hope others will help here as well. IP: Logged Don WintonForum Contributor Posts: 498From:Tullahoma, TNRegistered: posted 09 January 1999 07:26 PM                elbee,Welcome to the Cove.I may be mistaken in this. The implied purpose of measuring to a significant digit in excess of the specification is to determine exactly what you are asking. IMHO, if the specification is 0.111 +/- 0.001, then 0.1121 is NONCONFORMING. To mirror Marcās suggestion, it is more important to meet the intent of the specification. Do not become caught up in the Īgoal=postā method of thinking. quote:The other side (QA) says that although the gage is capable, the feature is only designed to 0.000 so nothing past the third decimal place should matter.I disagree. Ask your phone company when one minute equals one minute. Perhaps the QA department is more concerned with meeting the letter of the specification rather than the intent of the specification. Just a thought.Regards,Don[This message has been edited by Don Winton (edited 01-09-99).] IP: Logged
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