GD & T: Geometric Dimension and Tolerancing

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free online course of Geometric Dimension and Tolerancing

Learn the common language of Engineering design, Production, and Quality Assurance , known as 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

Lessons

Dimension

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…