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Understanding Engineering Drawings (Udemy.com)

How Technical Information is Conveyed from Engineers and Designers to Manufacturing and Supply Chain Professionals

Created by: Ray Harkins

Last updated August 2026

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What you will learn

  • Complete overview of engineering drawings
  • Bills of material, notes, and Information blocks
  • Types of lines, dimensions, and dimensional tolerances
  • Sectional and detail views
  • Visualizing a part using an engineering print
  • Orthographic projection
  • And much more!!

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Course Description

This course is designed for manufacturing or supply chain professionals who want to better understand engineering drawings. So often, engineering and design feel like an "island unto itself" where the terminology and methods feel obscure and difficult to understand.

But in this course, "Understanding Engineering Drawings", we will explain everything you need to get started reading and interpreting technical drawings including:

  • Title and information blocks

  • Interpreting orthographic projections (front, top and side)

  • Types of lines used and their significance

  • "Views" such as Detail and Section views

  • The major types of drawings and why they're important

  • How parts are dimensioned and toleranced

  • How to visualize the features of a component using these drawing

  • A wide range of terminology used with engineering prints

  • A detailed overview of actual engineering drawings

  • And much more!!

So whether you're working "on the shop floor" or in an administrative role, and need to better understand how to read and interpret engineering prints, THIS IS THE CLASS FOR YOU!!! We answer all your questions about what you're looking at on these drawings. And, if you need a little extra help, you're welcome to send us a note through Udemy, and we'll get right back to you with an answer.

Here's what Udemy students are saying about "Understanding Engineering Drawings":

  • "I learnt a lot about the basics of reading prints and this is more than enough to start drawing" - Haazim K.

  • "Great course covering blueprint reading basics. Good descriptions of types of lines, sections, visualizations, etc." - Kris S.

  • "Smashing introduction to the subject, enjoyed it very much and learned what I wished." - Stewart G.

  • "I really enjoyed the course and it helped me with the basics." - Jeremy P.

Sign up today!! See you in class soon.

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Instructor Details

Ray Harkins

Ray Harkins is a senior manufacturing leader, educator, and founder of The Manufacturing Academy, with more than 30 years of experience in manufacturing engineering, quality engineering and management, and operations leadership. He currently serves as a General Manager in manufacturing, overseeing operations, quality, engineering, and continuous improvement while remaining actively engaged in solving the day-to-day challenges faced by manufacturers.

After beginning his career in manufacturing engineering, Ray expanded into quality and operations leadership, working alongside leading industry professionals throughout North America and Japan and touring hundreds of manufacturing facilities. These experiences shaped his belief that manufacturing professionals deserve practical training that they can immediately apply to improve quality, productivity, and their careers.

That philosophy has guided the development of more than 60 online courses covering Lean Six Sigma, Statistical Process Control, Supply Chain Analytics, Manufacturing Leadership, Reliability Engineering, and Operations Management. His courses are used by individual professionals and corporate training departments worldwide and have helped more than 140,000 students build practical skills and advance their careers.

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Reviews

4.4

2,295 ratings on Udemy

Select a bar to show only those reviews.Select the bar again to show every rating.

By Eleanor Fahrney on 1/20/2026

Doesn't show pic until explanation mostly done...keeps watcher engaged. Graphics are very representative. Explanations are clear. A lot of the graphics are blurred and hard to read but I can tell they are good examples.

By Christopher Pemberton on 10/8/2025

Let's start with the bad and end with the good. I found the editing of the videos to be a bit sub-par. Audio screw ups are not always edited out and the audio quality seems to vary. Secondly, the information seems a bit lacking. Material finishes are not explained though datumns, planes, radius, diameters and parralels are. Seems a little inconsistent. Now on to the good. This is still a good course to take and I would recommend. Plenty of information, especially for those with no knowledge of technical drawings at all. Everything is explained well with examples and everythings flows together nicely.

By Ajith Abraham on 8/3/2025

This course was excellent—everything was well explained, easy to understand, and nicely concise. The short format made it easy to follow without feeling overwhelmed. Highly recommend it for anyone seeking a concise yet clear introduction to the topic.

By Jessie Waddell on 2/19/2025

Exactly what I was looking for as a refresher course as I prepared for an interview requiring familiarity with engineering drawings. Some have complained about some very minor issues with edit quality. My two cents - I like seeing behind the curtain and knowing how much work and editing goes into making these videos. Thanks for the content!

By Joei Rae Ross on 12/10/2024

I just started a new job in a metal fabrication plant being hired on as Engineering Assistant. I will be taking some of the workload off of the Engineer and I know nothing about this type of work. Even though I am in the clerical part of it, I have been learning the background of why I am doing what I am doing. It is all so fascinating seeing how a finished product is manufactured. Learning how to read engineering drawings and taking on online course was part of my training. Thank you for this wonderful course.

By Vitalij Veprickij on 3/24/2024

This is very basic introduction to engineering drawings reading. I expected much more. In the last video you show more complicated drawings. I expected to be able to read them without problems after watching your course, but instead was showing very very basic stuff.

By Jon McCord on 2/16/2024

Good course with pertinent content. A couple of issues with the video/audio during the course (some areas should be cleaned up for either long pauses or moderator disconnect) but other than that it is what I needed and expected. I will recommend to my colleagues.

By Paul Sclippa on 12/26/2023

Some videos a little glitchy but manageable. Some slides have written descriptions describing the items being taught, the instructor was just reading the written descriptions which I found a little bothersome considering I can read the text on my own. A little more freestyle explanation from the instructor might engage the audience more.

By Casey Brown on 3/10/2023

The instructor's voice is enthusiastic and he seems knowledgeable. It was helpful that he added little nuance notes in to show applicability and various uses of the terms. I'm an assistant project manager and new to the field and it's really been helpful in understanding high level what will be developed and used in my company. After taking this course I feel I can ask informed questions and not look completely novice. Thanks Instructors Harkins & Pace!

By S. C. on 11/7/2022

I took this class as an introduction to technical drawing with the aim to progress to mechanical drafting. I know that this isn't who this class is aimed towards, but this seemed like the closest I could find on here. I feel like it gets so close to being a good introduction, but doesn't quite get there. Just looking at pdfs found around the internet, there are some things that seem to be missing or things that were not explored in enough depth and I find myself having to look for something more comprehensive elsewhere. I think this class would benefit from being more in depth, similar to an introductory course someone would take in college or university for engineering, architecture, etc. It would be useful to more people while still being useful to the current target demographic.

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Overall Score : 88 / 100