# Using Feature Control Frames

Using Feature Control Frames: Introduction

What is a Feature Control Frame?

Rules for Using Feature Control Frame Dimensions

Creating a Feature Control Frame Dimension

Defining Datums

Using Maximum Material Boundary (MMB) and Least Material Boundary (LMB)

The GD&T Dialog Box

Feature Control Frame Command Block

Feature Control Frame Trihedron

Simultaneously Evaluating Feature Control Frames

True Position Feature Control Frame Dimension Information

Parallelism Feature Control Frame Information

Straightness Feature Control Frame Information

Reporting True Position Feature Control Frames

Creating a Symmetry Feature Control Frame Dimension

Creating a Runout Feature Control Frame Dimension

Using Unequal Tolerance Zones with Profile Feature Control Frame Dimensions

Feature Control Frame Reporting Tables