Technical Drawing Tutorial - Prepare a Perfect Mechanical Drawing for Machinists

Learn how to prepare a mechanical drawing(or technical drawing) so that machinist knows exactly how to machine your parts. We'll cover critical parts of the mechanical drawing, such as going over what a mechanical drawing should entail, our 7 steps for preparing a drawing, and how to correctly add critical dimension, hole callouts, threads, and specifying tolerances on a technical drawing.

00:00 Introduction to this video on technical or mechanical drawings

00:26 First, we discuss what a mechanical drawing should look like. Which components it needs to have to be clear for the CNC machinist.

00:44 Here go over the title block of the mechanical drawing

01:27 Next is the pictorial isometric view.

01:38 The main orthographic views

02:09 Section views will be discussed

02:42: Next is the detail views of the technical drawing

03:02: finally, notes to the manufacturer are discussed.

03:31 Next, we'll have a look at the 7 steps to best prepare a technical drawing

04:34 In this section, we'll explain how to add dimension, tolerances, and annotations in your mechanical drawing.

04:55 First, we're going to provide tips on how to add dimensions to your technical drawing.

06:30 Second, we'll teach you how to specify tolerances on a mechanical drawing, including the GD&T system.


Mechanical drawing example: http://3dhu.bs/4MsLLV
CAD: http://3dhu.bs/wRILdp


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