Old article --rule#1 expanded to irregular features of size...not sure I agree
Old article --rule#1 expanded to irregular features of size...not sure I agree
(OP)
Authors:
Al Neumann
Scott Neumann
Technical Consultants Inc.
New ASME Y14.5 - 2009 Standards for GD&T article.
Machine Design Magazine
The use of direct-tolerancing methods, limit dimensioning, and plus-minus tolerancing are used to control the size of features only. The limits of size, Rule #1, has been expanded to include irregular features of size. Irregular features of size are features other than a sphere, cylinder, or two parallel planes.
http://www.machinedesign.com/basics-design/new-asm...
Al Neumann
Scott Neumann
Technical Consultants Inc.
New ASME Y14.5 - 2009 Standards for GD&T article.
Machine Design Magazine
The use of direct-tolerancing methods, limit dimensioning, and plus-minus tolerancing are used to control the size of features only. The limits of size, Rule #1, has been expanded to include irregular features of size. Irregular features of size are features other than a sphere, cylinder, or two parallel planes.
http://www.machinedesign.com/basics-design/new-asm...





RE: Old article --rule#1 expanded to irregular features of size...not sure I agree
What specifically do you disagree with?
Section 1.3.32.2 does a clear job explaining the definition of an IFoS.
2.7.1 seems to be clear enough to me, that it may include irregular features of size, as well as regular. If not a, b, or c, then d is quite open to allow for IFoS to have form control:
RE: Old article --rule#1 expanded to irregular features of size...not sure I agree
John-Paul Belanger
Certified Sr. GD&T Professional
Geometric Learning Systems
RE: Old article --rule#1 expanded to irregular features of size...not sure I agree
RE: Old article --rule#1 expanded to irregular features of size...not sure I agree
The limits of size,
Rule #1,has been expanded to include irregular features of size. Irregular features of size are features other than a sphere, cylinder, or two parallel planes.Do you guys agree with my assessment?
RE: Old article --rule#1 expanded to irregular features of size...not sure I agree
Certified Sr. GD&T Professional
RE: Old article --rule#1 expanded to irregular features of size...not sure I agree
Or these articles are written with so much speed and lack of attention (therefore careless for details)…….