Parallelism : GD&T Basics

Parallelism controls parallelism between two lines, surfaces or axis. In another words, it describes a parallel orientation of one referenced feature to a datum surface or line in 3d tolerance zone. Parallelism does not controls the angle of the refere ...

Engineering Tolerance & Fits

Engineering Tolerances are required evil. You can not live without then while working with manufactured parts. But for robust design we need to find a way in between

General Tolerance :ISO-2768

Variations on dimensions without tolerances values are according to ISO 2768 for linear and angular dimensions. ISO 2768 is used to define the general tolerance on sheet-metal and plastic parts. For sheet-metal parts ISO 2768-m and for plastic parts ISO 2 ...