BASIC DIMENSIONS USE G D &T TOLERANCING, THE QUESTION IS I HAVE BASIC DIMENSIONS COMING FROM X & Y AXIS. AM I SUPPOSED TO "CUT" THE TOLERANCE IN HALF WHEN DIMENSIONING THE BASIC DIMENSION? example X AND Y ARE BOTH [2.077] THE TRUE POSITION CALLOUT IS ALLOWING UP TO .015 SHOULD I USE .0075 FOR X AND .0075 FOR MY Y TOLERANCE?
You obviously have no idea about how basic dimensions work (or even that there is a button marked 'caps lock' on your keyboard...), so I'll give you the advice that I nearly always give those who either can't or don't understand the mathematical theory behind it:
Take your "true position" value, and divide by 1/3 for the safe amount of tolerance in either direction. This will in effect be over-tolerancing the position, but will keep even the least experienced operator safe from creating scrap.
You realize that this forum is for people to come and ask questions without fear of being harrased or embarrased. There are individuals on hear from ALL experience levels and in ALL types of industries. I work with degreed engineers who do not fully understand GD&T and how basic dimensions work. Putting someone down for asking a question is just bad form and typically leads to the admins getting involved. I would offer a bit of advice if you choose to be a part of this forum. Be respectful and mindful that not everyone is as knowledgable as you think you are. Just my .02
You obviously have no idea about how basic dimensions work (or even that there is a button marked 'caps lock' on your keyboard...), so I'll give you the advice that I nearly always give those who either can't or don't understand the mathematical theory behind it:
Take your "true position" value, and divide by 1/3 for the safe amount of tolerance in either direction. This will in effect be over-tolerancing the position, but will keep even the least experienced operator safe from creating scrap.
You realize that this forum is for people to come and ask questions without fear of being harrased or embarrased. There are individuals on hear from ALL experience levels and in ALL types of industries. I work with degreed engineers who do not fully understand GD&T and how basic dimensions work. Putting someone down for asking a question is just bad form and typically leads to the admins getting involved. I would offer a bit of advice if you choose to be a part of this forum. Be respectful and mindful that not everyone is as knowledgable as you think you are. Just my .02
