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Reply To: | TechNet E-Mail Forum. |
Date: | Thu, 3 Jun 1999 20:00:27 -0400 |
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Glen,
The circle is outside the square. As an example, if you have a x,y tolerance of +/- .005 this means that from a "Basic" location you could be +/- .005 in the x direction and +/- .005 in the y direction and still have a feature in tolerance in terms of location. Mathematically, this equates to a diagonal of .007 from the "basic" true location of the feature. Therefore with a x,y tolerance you would accept a part that had a feature located .007 (on a diagonal) from the "basic" true location of that feature. Now if you look at that diagonal as being a radius from the "basic" true location of that feature, you would draw that radius around the outside of the square, having the radius touch each of the four corners of the square. TP can also vary based on MMC (Maximum Material Condition) of a feature.
Tom Burek
Product Engineer
Ametek/Dixson
-----Original Message-----
From: "Glenn Pelkey"@MAXTEK.COM [SMTP:PC :"Glenn Pelkey"@MAXTEK.COM]
Sent: Thursday, June 03, 1999 2:37 PM
To: [log in to unmask]
Subject: Re: [TN] True Position
<< File: ENVELOPE.TXT >>
-------------------------------------------------------------------------- --
O.K. one more time.
Going back to the circle and square example, is the circle inside the
square
tangent to the sides as was first explained?
or,
Is the circle outside the square tangent to the corners as the math
explains?
Thanks,
Glenn
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