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Robert-Altman10-Marble
10-Marble
April 2, 2014
Question

New GD&T Profile Tolerance

  • April 2, 2014
  • 4 replies
  • 7405 views


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A new symbol, circle U, was added to profile tolerance. In the past, a design engineer wanting to specify an unequal profile tolerance on the drawing would draw a chain line in the applicable area. Two arrows were shown to displace the tolerance zone. In the new standard, the circle U symbol follows the toleranced value in the profile feature-control frame. This announces that an unequal tolerance is in effect.

Is there some way to add this to the interface?

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Regards,

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4 replies

K
kimndave91-Visitor
1-Visitor
April 2, 2014


It's almost 5 years since ASME added the (U) symbol and almost 10 year since it was first proposed. If it's not there now...


Besides, the chain line is more direct.


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G
gdt1-Visitor
1-Visitor
April 2, 2014
A circle U is used in ASME, ASME Y14.41-2003 to be exact.It refers to the distance from the surface a profile tolerance is offset. A distance of 0.000 means that the tolerance is bilateral.This does away with having to draw a phantom line to denote which side a profile tolerance is applied to.
If its not a standard in the ProE drawing call out make a symbol

From: -
To: -
Subject: [proecad] - New GD&T Profile Tolerance
Date: Wed, 2 Apr 2014 18:57:10 +0000













A new symbol,
circle U, was added to profile tolerance. In the past, a design
engineer wanting to specify an unequal profile tolerance on the drawing would draw a chain line in the applicable area. Two arrows were shown to displace the tolerance zone. In the new standard, the circle U symbol follows the toleranced value in the profile
feature-control frame. This announces that an unequal tolerance is in effect.

Is there some way to add this to the interface?




Regards,










Robert Altman
Manager, CAD Engineering & Tech Support




C
ChadSmith1-Visitor
1-Visitor
April 2, 2014
You can turn this on in the drawing options.

ASME Y14.41
Circle U and other ASME Y14.41 settings
File-> Prepare-> Drawing Properties ->Detail Options

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Chad Smith
Product Engineer | Upper Extremity
www.acumed.net
K
kimndave91-Visitor
1-Visitor
April 2, 2014

Ahh, Creo or Creo 2


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