GD&T True Position

Computer Numeric Control - All aspects of Computer Numeric Control - machinery as well as software 

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Subject Author Date GD&T True Position BottleBob 10-07-2008
Posted by BottleBob on October 7, 2008, 7:47 pm Please log in for more thread options To All:         Coincidentally, I've been thinking recently about making a post about GD&T True Position, but today when cruising through Practical Machinist I noticed that Joe788 made a post that referenced a site that simplifies the explanation of True Position. Here's the site: http://www.cmmquarterly.com/site/index.php?option=com_content&task=view&id=75&Itemid=78         If that one wraps, try this one (it's the same site). http://tinyurl.com/3uy6gd         When getting a Diameter True Position callout, I divide it by two to get the Radial True Position and then multiply that figure by .7071 to get the max amount you can be off in a 45 degree COMBINED X & Y direction.                  There are online True Position calculators like the following that can take Maximum or Minimum Material Conditions into consideration. http://www.i-logic.com/utilities/truepos.asp -- BottleBob http://home.earthlink.net/~bottlbob Similar Threads Posted 2 position hinge July 22, 2008, 1:28 am Read Machine position on Fanuc 0i July 20, 2006, 3:16 am Machine can't find home position.... March 27, 2009, 8:41 am Machine Shop Supervisor (2nd & 3rd Shift Position) February 27, 2008, 12:38 pm HB 1388 passed? Is this true? August 17, 2009, 11:32 pm Re: HB 1388 passed? Is this true? August 23, 2009, 3:39 pm The True Will Versus Squaresville February 18, 2010, 7:07 am Turning a out of round aluminum tube true November 26, 2008, 7:58 pm Re: Writer admits Holocaust book is not true - Haha!!!!! March 1, 2008, 9:16 am Re: Solidworks vs AutoDesks Inventor pro 2008 version... It looks like SW is a lot more intuitive and easier to learn... is that true June 8, 2008, 8:34 pm