Online Self-paced

Foundational: Inspection
301 Intro to GD and T

Length: 2 Hours

Target Audience
Advanced Level

The class “Introduction to GD and T” provides a basic introduction to the symbols and vocabulary of geometric dimensioning and tolerancing, or GD and T. GD and T is an international design standard that uses 14 standard geometric tolerances to control the shape of features. GD and T emphasizes the fit, form, and function of a part by comparing the physical features of the part to the imaginary datums specified in the design instructions. Every part feature is described by a series of symbols, which are organized in the feature control frame. Because GD and T uses tolerance zones that more accurately follow the shape of a feature rather than a square grid and emphasizes the relationship between features, blueprints usually utilitize GD and T to describe parts. This means that to fully understand a blueprint, it is necessary to know the GD and T symbols and what they mean. After taking this class, users should be able to better understand the symbols commonly used in a GD and T print.

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Courses Ascending
Advanced: 312 GD&T Applications
Beginner: 110 Basic Measurement
Beginner: 115 Linear Instrument Characteristics
Beginner: 120 Basics of the CMM
Beginner: 130 Basics of the Optical Comparator
Beginner: 140 Surface Measurement
Beginner: 141 Hole Standards and Inspection
Beginner: 150 Overview of Threads
Beginner: 151 Thread Standards and Inspection
Intermediate: 201 Surface Texture and Inspection
Intermediate: 210 Calibration Fundamentals
Intermediate: 240 Hole Inspection
Intermediate: 250 Thread Inspection
Intermediate: 260 Hardness Testing
Advanced: 300 Measuring System Analysis
Advanced: 301 Intro to GD and T
Advanced: 311 Major Rules of GD and T
Advanced: 315 Interpreting GD&T
Advanced: 321 Inspecting a Prismatic Part
Advanced: 331 Inspecting a Cylindrical Part
Advanced: 341 Advanced Hole Inspection
Advanced: 351 Inspecting with Optical Comparators
Advanced: 361 Inspecting with CMMs
Advanced: 371 Calibration and Documentation
Advanced: 381 In-Line Inspection Applications
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