Tag: circularity

by Seth Elder on September 14, 2020.

In this question line video, Brandon reviews the differences between the GD&T callouts for circularity, circular runout, and total runout. To examine the differences in these concepts it is helpful to first review the GD&T hierarchy of SLOF – Size, Location, Orientation, and Form. When defining a feature, begin by specifying the size of a…

by GD&T Basics on December 21, 2014.

GD&T Symbol:  Relative to Datum: No MMC or LMC applicable: No Drawing Callout: Description: The circularity symbol is used to describe how close an object should be to a true circle. Sometimes called roundness, circularity is a 2-Dimensional tolerance that controls the overall form of a circle ensuring it is not too oblong, square, or…