GD & T: Geometric Dimension and Tolerancing

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Join GD & T: Learn How to read Technical drawing(1 hour))

Learn the common language of Engineering design, Production, and Quality Assurance, known as Geometric Dimensions and tolerancing. This course is useful for every Production, Quality and Designing engineer.

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Learn the common language of Designing, Production, and Quality Engineer, known as Geometric Dimension and tolerancing.

free online course of Geometric Dimension and Tolerancing

As we know it is impossible to manufacture the exact dimension of the product every time, so we try to manufacture a product within tolerance, this tolerance specifications and technical designing should be well understood by every designing/production/quality engineers.

Course Objective

  • Learn the basics language of technical drawing
  • Learn the meaning of tolerancing symbols, coordinate systems, tolerance frame, etc.

Course features

  • Video & Reading lessons
  • Certificate
  • Lesson quiz

Course Duration

Self-Placed ~ 1 day

Course Direction

  • Course Joining: Click on “Register” or log in
  • Start the Course: Click on the first “Lesson”
  • Certificate: After complete the course download the certificate in “My Course” page



Author: dcunite

In design, there is an ideal form of the product with the specification. This specification used to design the product called the work-piece, and the work-piece is a real form of the product, we have to measure it.

Technical Drawing: Projection

Author: dcunite

A Technical drawing provides us all the technical specifications of the product. Engineering drawing is usually presented in First angle orthographic projection or third angle orthographic projection.

Technical Drawing: Dimension tolerance

Author: dcunite

Drawing Symbols The tolerances on the dimensions can be specified in three ways: Unilateral Tolerance System In this system, the tolerance is provided on only one direction from the basic…

Tolerance frame and Symbols

Author: dcunite

Tolerance Frame A Tolerance frame also know as feature control frame contains information including Arrow(to represent the area of the technical drawing)Symbol (Hole in below image)ValueShape (Diameter in below image)Datum…

Co-ordinate system

Author: dcunite

A coordinate system is a system that uses one or more numbers, or coordinates, to uniquely determine the position of the points in the space.

Datum and Degree of freedom

Author: dcunite

Datum A datum is a virtual ideal plane, line, point, or axis. A datum feature is a physical feature of a part identified by a datum feature symbol and corresponding datum feature triangle. Degree of freedom In…

Symbols of Tolerance frame

Author: dcunite

Symbols Some common symbols used in a Tolerance frame to specify a feature’s description, tolerance, modifier and datum references Free state Least material condition (LMC) Maximum material condition (MMC) MMR(Maximum Material…


Author: dcunite

Please Note: Review Preview lessons before taking this TestThis Test is not reset-able. You have only one chance. 50% required to pass this quiz, If your score is less than 50%…