How to Measure Flatness: A Straightforward Guide for ... - Wev…
https://www.wevolver.com/article/how-to-measure-flatness-a-straightforward-guide-for-professionals
WebNov 4, 2022 · Flatness is a measure of a surface’s form that indicates whether all of the points along that surface lie in the same plane. Symbolized in Geometric Dimensioning and Tolerancing by a parallelogram, flatness is particularly useful when two surfaces must be assembled together to form a tight seal.
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