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

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GD&T Overview

It is hard work to understand all the meanings of the GD&T symbols and regulations and correctly interpret the size tolerance (dimensional tolerance) at the same time.

Therefore, we explained GD&T in an easy-to-understand manner with a focus on interpretation and measurement. The explanation treats the ISO as the standard, and also covers how it differs from the ASME.

GD&T basics and measurement are necessary for both current and future product manufacturing.
We will guide you through this area.

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

INDEX

  • 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)
    • Runout Tolerance (Runout 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
  • 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)
    • Runout Tolerance (Runout 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
  • 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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