The Basics of GD&T and Measurement Skills | GD&T Fundamentals

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Learn how to interpret and measure using the latest design standards

Check out these GD&T basics

GD&T Overview

  • What Is GD&T?
  • GD&T Drawings and Symbols
  • What Are Datums?
  • Feature Control Frame
  • International Industrial Standards and GD&T

Types of Geometric Tolerances

  • Form Tolerance (Form Deviation)
  • Form Tolerance and Location Tolerance (Profile Tolerance of Line / Profile Tolerance of Plane)
  • Orientation Tolerance
  • Location Tolerance (Location Deviation)
  • Run-out Tolerance (Run-out Deviation)
  • Maximum Material Condition (MMC) and Least Material Condition (LMC)

Understanding Datums

  • Major Types of Datum Features
  • Common Datums and Datum Systems
  • Datum Targets

GD&T Measuring Instruments and Principles

  • Measuring Instruments
  • Measuring Machines

Measuring Form Tolerance

  • Measuring Straightness
  • Measuring Flatness
  • Measuring Roundness
  • Measuring Cylindricity
  • Measuring the Profile Tolerance of Line
  • Measuring the Profile Tolerance of Plane

Measuring With Datums: Orientation Tolerance

  • Measuring Parallelism
  • Measuring Perpendicularity
  • Measuring Angularity

Measuring With Datums: Location Tolerance

  • Measuring True Position
  • Measuring Coaxiality
  • Measuring Concentricity
  • Measuring Symmetry

GD&T Techniques

  • Envelope Requirement
  • Maximum Material Condition (MMC)
  • Least Material Condition (LMC)
  • What Is a Projected Tolerance Zone?
  • GD&T of Non-Rigid Parts

Glossary

GD&T Symbols

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Home

  • GD&T Overview
    • What Is GD&T?
    • GD&T Drawings and Symbols
    • What Are Datums?
    • Feature Control Frame
    • International Industrial Standards and GD&T
  • Types of Geometric Tolerances
    • Form Tolerance (Form Deviation)
    • Form Tolerance and Location Tolerance (Profile Tolerance of Line / Profile Tolerance of Plane)
    • Orientation Tolerance
    • Location Tolerance (Location Deviation)
    • Run-out Tolerance (Run-out Deviation)
    • Maximum Material Condition (MMC) and Least Material Condition (LMC)
  • Understanding Datums
    • Major Types of Datum Features
    • Common Datums and Datum Systems
    • Datum Targets
  • GD&T Measuring Instruments and Principles
    • Measuring Instruments
    • Measuring Machines
  • Measuring Form Tolerance
    • Measuring Straightness
    • Measuring Flatness
    • Measuring Roundness
    • Measuring Cylindricity
    • Measuring the Profile Tolerance of Line
    • Measuring the Profile Tolerance of Plane
  • Measuring With Datums: Orientation Tolerance
    • Measuring Parallelism
    • Measuring Perpendicularity
    • Measuring Angularity
  • Measuring With Datums: Location Tolerance
    • Measuring True Position
    • Measuring Coaxiality
    • Measuring Concentricity
    • Measuring Symmetry
  • GD&T Techniques
    • Envelope Requirement
    • Maximum Material Condition (MMC)
    • Least Material Condition (LMC)
    • What Is a Projected Tolerance Zone?
    • GD&T of Non-Rigid Parts
  • Glossary
  • GD&T Symbols

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