Previously, I wrote about isometric drawing in AutoCAD. It’s not actually 3D drawing. But changing your cursor orientation will make it easier to draw isometric drawings. But have you tried to annotate your drawings? How about dimensions and text, is it appear properly? No it’s not.

So how can you create dimension and text for isometric drawing?

If you use vanilla AutoCAD, there is no direct or easy way to do it. But a little work around could achieve what you want

Text

First, create two text style. Use oblique angle 30 deg for one style and -30 deg for the other.

obluque

Now place your text (single or multi line), change the text rotation to 30 deg or -30 deg. It depends on where you want to put that text. See next image as reference.

Command: DT
TEXT
Current text style:  "Standard"  Text height:  2.5000  Annotative:  No
Specify start point of text or [Justify/Style]:
Specify height <2.5000>:
Specify rotation angle of text <0>: -30

Try to create text with several combinations. Well, basically these three are all you need.

isometric

Dimension

What about dimensions? Similar to text, you have to create two dimension styles. One of the style use 30deg text style, and the other one use -30deg text style.

dimension text style

Now place your dimension with aligned dimension. Linear dimension won’t do the trick. Well, except for vertical dimension.

aligned dimension

Now we have to do a little modification.

Activate DIMEDIT [enter], choose OBLIQUE, then give 30 or -30 as oblique angle. Once again, depends where your dimension is.

Command:  DIMEDIT
Enter type of dimension editing [Home/New/Rotate/Oblique] <Home>: O
Select objects: 1 found
Select objects:
Enter obliquing angle (press ENTER for none): -30

See this image as reference.

isometric dimension


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Source: CAD Notes – AutoCAD Isometric Text and Dimension
Go to Source: CAD Notes