Feature Control Frame
A Feature Control Frame is a box that is divided into at least three sub boxes.
Geometric tolerancing information is always shown in a Feature Control Frame.
Feature control frames are always set up the same way.
* The first box tells what kind of geometric tolerance it is.
* The second box tells how big the tolerance is. It may also contain additional information that we will see in later sections.
* The third, fourth, and fifth box, if used, tells what datums are used for this tolerance. The tolerance may use one, two, or three datums.
Geometric tolerancing information is always shown in a Feature Control Frame.
Feature control frames are always set up the same way.
* The first box tells what kind of geometric tolerance it is.
* The second box tells how big the tolerance is. It may also contain additional information that we will see in later sections.
* The third, fourth, and fifth box, if used, tells what datums are used for this tolerance. The tolerance may use one, two, or three datums.
