Simple steps to draft/sketch 3D (Isometric)

Hi, I have used a very simple rectangular box as a sample. In this example, I will be drawing the isometric view from the left side of the box. The following steps are very good to take note of when you want to sketch/draft a 3D object on a 2D plane. This is the basics of how I arrive my 3D sketches and it is relatively accurately (to-scale). You can try this sketching out too! Refer to the below illustrations/steps:

1) Find the 'Infinity Point'

You can see from the picture there is 2 little circles. Those are picked as my 'infinity point' where the lines diverges from. This is also the guidelines for your edges. The lines in RED are the guidelines.

2) Locate the corners of a plane

After fixing the 'infinity point', you can now start to get the surface of the object. By drawing parallel guidelines from the infinity point, you can form a plane or surface of the object. The above image shows the guideline to sketch the top plane of a rectangular box.

3) Sketch the plane

Now you can sketch the plane by following the guidelines, after which, you can determine the height of the rectangular box. Above image shown the top plane and height of the box sketching in WHITE.

4) More guidelines to form all edges

After deciding the height, you can now draw more guidelines to form all the remaining edges/surfaces. As you can see from the image above, there are more red guidelines form the bottom surface of the box.

5) Complete the box

With all the guidelines, you can now complete sketching the box as shown in the above image.

6) Remove guildlines and create hidden edges

Finally, you remove the RED guidelines to see the box with all the edges. As we know some edges cannot be seen in practise, we can use a dotted line to tell others that those are hidden lines behind the opaque surface.

Hope you enjoy the above and please share if you like it!

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