Geometric Dimensioning and Tolerancing Fundamentals: Form Controls & Datums DVD

This program is part of the Fundamentals of Geometric Dimensioning and Tolerancing (GD&T) package. Datums are reference measurement surfaces, planes, or points from which other part features are measured. By using the 14 geometric characteristic symbols along with datum references the functional requirement of a part or assembly can be effectively communicated. The proper identification and usage of datums in GD&T is explored.

This program focuses solely on the form symbols:

• Straightness
• Flatness
• Circularity
• Cylindricity