Fig. 2: An example two-dimensional cross section of a three-dimensional component, as various surface features are added to the model.
From: Three-dimensional runout characterisation for rotationally symmetric components
The ideal, perfectly cylindrical case (red) is in a and shown throughout the subsequent images as a dotted red profile. The centre of the component is indicated by a single point. In b an offset has been added to the (blue) component, such that it is no longer centred at the origin of the plane. This could also be due to shear of the component, and cannot be distinguished from just one profile, needing a three-dimensional runout measure. In c the (green) component is now lobed (with n = 3 lobes), due to some tool oscillation during lathing. Finally, Gaussian surface roughness has been added in d (yellow).
