Graphics Programs Reference
In-Depth Information
Chapter 1: DimXpert
Geometric Dimensioning and Tolerancing
During the manufacturing process, the accuracy of a part is an important factor. However,
it is impossible to manufacture a part with the exact dimensions. Therefore, while applying
dimensions to a drawing you need to provide some dimensional tolerances, which lie with-
in acceptable limits. The following figure shows an example of dimensional tolerances ap-
plied to the drawing.
The dimensional tolerances help you to manufacture the component within a specific size
range. However, the dimensional tolerances are not sufficient for manufacturing a compon-
ent. You must give tolerance values to its shape, orientation and position as well. The fol-
lowing figure shows a note, which is used to explain the tolerance value given to the shape
of the object.
