Geometric Dimensioning and Tolerancing using NX CAD

Rs 30,000

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Siemens NX

Siemens NX software is a flexible and powerful integrated solution that helps you deliver better products faster and more efficiently. NX delivers the next generation of design, simulation, and manufacturing solutions that enable companies to realize the value of the digital twin.


Top 5% of the class will get a merit certificate. Course completion certificate will be provided to all students who complete the course. You will receive both e-verified and hard copy of your certificates.

What is included in the course?

Introduction to GD & T

In this module, you will understand what GD&T is and its uses. After your first class, you will be able to understand the basics such as:

  • Difference between Traditional Dimensioning and GD&T
  • Benefits of GD&T
  • How to read a Feature Control Frame
  • Technical Standards- ASME Y14.5M-2009
  • Different Symbols used in GD&T, Surface and Feature of size

Rules, Symbols and Form Tolerances

In this module, we will raise our knowledge up a notch and learn about the governing rules of GD&T. After this class, you will have a thorough knowledge of:

  • Rule No. 1 (i.e. Taylor Principle a.k.a Envelope Principle)
  • Rule No. 2 (Regardless of Feature Size)
  • 14 Symbols used in GD&T
  • Flatness, Straightness, Cylindricity and Circularity Tolerances
  • MMC, LMC and RFS Conditions
  • Various examples for Form Tolerances

Datums, Modifiers, Virtual Condition

In this segment, you will study the following topics:

  • What are Datums and how to apply datums to parts
  • Datum Reference Features
  • Datum Feature Modifiers
  • How to calculate Virtual Condition
  • Conjugated Datums

Orientation Tolerance and Profile Tolerance

By the beginning of this section, you will have built a good base for learning complex tolerances. In this section we will learn:

  • Profile of Surface and Profile of Line
  • Perpendicularity Tolerance, Parallelism Tolerance and Angularity Tolerance
  • Composite Profile Tolerance
  • Various examples for Orientation and Profile Tolerances

Position Tolerance

Position Tolerance is most widely used tolerance in GD&T and hence we will dedicate entire segment in learning this tolerance and its application. In this section we will go through:

  • Understanding True Position
  • Projected Tolerance
  • Composite Tolerances
  • Tolerance Zones- Cylindrical, Rectangular, Spherical
  • Examples

Coaxiality, Symmetricity, Runouts

By now, you will have enough knowledge to read an entire GD&T drawing and understand it. In this section we will cover some tolerance that are not widely used in industry but are mentioned in the ASME Standard. We will learn:

  • Coaxiality
  • Symmetricity
  • Circular and Total Runouts
  • Examples

Understanding GD & T Drawing

In this part, we will go through a complex GD&T drawing and understand each and every tolerance and the message the tolerance conveys

Download Detailed Course Syllabus and Information

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Course Syllabus

Week 1 - Introduction to GD & T

  • Review of traditional dimensioning
  • Benefits of GD & T
  • Technical Standards
  • Definitions
  • Basic Dimensions
  • How to read the feature control frame?

Week 2 - Rules, Symbols & Tolerances

  • Rule #1 Size controls form
  • Rule #2 Assume RFS
  • Flatness
  • Surface Straightness
  • Circularity
  • Cylindricity

Week 3 - Bonus Tolerance

  • GD&T applied to a feature of size
  • Bonus and the MMC modifier
  • Virtual conditions
  • Gaging and inspection of GD&T

Week 4 - Datums

  • Datum vs datum feature
  • The datum reference frame
  • Primary, secondary and tertiary datums

Week 5 - Profile & Orientation

  • General definition and profile
  • Profile of a line
  • Profile of a surface
  • Use of datums with profile
  • Perpendicularity
  • Angularity
  • Parallelism

Week 6 - Position Tolerance 1

  • True position
  • Position tolerance RF5
  • Using MMC or LMC
  • The boundary concept
  • The pitch diameter rule

Week 7 - Position Tolerance 2

  • Projected tolerance zone
  • Inspecting parts for position
  • Calculating tolerance values
  • Composite position tolerance

Week 8 - Symmetry & Co-axiality

  • Concentricity
  • Symmetry
  • Circular runout
  • Total runout

Who can take this course?

Undergraduate students 

If you have completed at least 2 semesters of undergraduate education in the following majors, then this course will be highly useful for you.

Mechanical Engineering
Aerospace Engineering
Automotive Engineering
Materials Engineering

Working Professionals

Design Engineers, and Manufacturing Engineers who wants to know how to create sheet metal parts using Siemens NX.

Additional Modules 

If you are not familiar with NX CAD, you can enroll in the NX CAD quick start program to learn the fundamentals with Rs. 10,000 add on

Week 1 - Introduction to NX

  • Starting an NX 10 Session and Opening Files
  • Start an NX 10 Session
  • Open a New File
  • Open a Part File
  • Printing, Saving and Closing Files
  • Print an NX 10 Image
  • Save Part Files
  • Close Part Files
  • Exit an NX 10 Session
  • NX 10 Interface
  • Mouse Functionality
  • NX 10 Gateway
  • Geometry Selection
  • User Preferences
  • Applications
  • Layers
  • Layer Control
  • Commands in Layers
  • Coordinate Systems
  • Absolute Coordinate System
  • Work Coordinate System
  • Moving the WCS
  • Toolbars

Week 2 - 2D Sketch

  • Overview
  • Sketching Environment
  • Sketch Curve Toolbar
  • Constraints Toolbar

Week 3 - 3D Modelling

  • Primitives – Cone, Sphere, Cylinder etc.
  • Swept Features
  • Extract Features
  • Datum Plane
  • Datum Axis
  • CSYS 
  • Advanced Features- General Hole, Pocket, Slot, Groove
  • Edge Blend
  • Chamfer
  • Trim Body
  • Split Body
  • Mirror
  • Pattern
  • Boolean Operations
  • Move Face, Offset Region etc.

Week 4 - Drafting

  • Overview
  • Creating a Drafting
  • Dimensioning
  • Sectional View
  • Product and Manufacturing Information

Week 5 - Assembly Modelling

  • Assembling Approaches
  • Top-Down Approach
  • Bottom-Up Approach
  • Assembly Navigator
  • Move Parts
  • Mating Constraints
  • Example
  • Starting an Assembly
  • Adding Components and Constraints

Week 6 - Freeforming

  • Overview
  • Creating Freeform Features from Points
  • Creating Freeform Features from Section Strings
  • Creating Freeform Features from Faces
  • FreeForm Feature Modeling
  • Modeling with Points
  • Modeling with a Point Cloud
  • Modeling with Curves

Student Testimonials

Our students love us! Read what they have to say below.

Amazing course content. Genuine efforts by the instructor and entire organization to help educate students. I'll definitely recommend this course for Mechanical Engineers.

Raj Mehta

I had a good experience joining the course here. Mentors are friendly and they clear the doubts very well. In my experience during the course, I learned a lot of new concepts

Abhinash Rajbanshi

The quality of teaching and the approach was really nice. And their support team always ready 24*7 to help us in solving our problems.

Amit Patel


1 . How will the instructor teach?

Our instructors are industrial experts working in Fortune 500 companies. We partner with them to deliver the lectures online. You will be given access to recorded content and assignments each week.

2 . Are there any prerequisites for this course?

You should be pursuing B.E/B.Tech in Mechanical, Aerospace, Automotive, Production or Manufacturing

3. What kind of support I can expect?

Our support system is amazing!. You can read our reviews on Google to see this. We focus on one-on-one support which no one else does. We will communicate with you through WhatsApp messages/calls, individual online sessions and also in person.

4 . How can I use the letter of recommendation?

You can use it for job search and higher education. Recommendation letters are given only for candidates that have performed extremely well.