Isometric Piping Drawings

[bigtopsteve]

When I start an Iso drawing should I use the 3D Views under the View tab and set it to SW Isometric or should I use the Snap/Style/Isometric way? I like using the 3D views, but it doesnt set the drawing up the same. What is the accepted procedure.

 

 

Thanks,

 

Steve

[ReMark]

I no longer do my piping isometrics in 2D...everything is in 3D now. I use a SE isometric view.

 

The accepted procedure is the one your company has put forth in its written standards or conveyed verbally to you by your supervisor.

[rkent]

Doing this in 3D makes it easier to visualize and add dimensions.

[bigtopsteve]

Lol, written standards? Communicate? I am the only drafter and my supervisor is an engineer who thinks autoCAD drawings magically appear.

[bigtopsteve]

Thanks guys, I rarelyl do Iso's so I was hoping doing them in 3D would be OK. It is so much easier.

[makmak9]

if we do the piping isometric in 3d, then how do we do the dimensions?

i think it will need us to override the text dimension in paper space if we do the 3d in model space and dimensioning in paper space.

 

correct me if i am wrong

 

.

[ReMark]

You can place your dimensions in model space or in your layout. Model space dimensions would most likely be done using annotative scaling. Placing your dimensions in the layout would only require that they be "associative" so that you end up with true distances. I've been placing all my text and dimensions in my layouts for years although I have to admit I have never dimensioned a 3D isometric.

[rkent]

if we do the piping isometric in 3d, then how do we do the dimensions?

i think it will need us to override the text dimension in paper space if we do the 3d in model space and dimensioning in paper space.

 

correct me if i am wrong

 

.

 

You will want to dimension 3D isometric views in MS. As you suggest adding dims in PS causes the dims to be smaller than actual dims. Ortho views of a 3D model can be done in PS.

 

Dimensioning in 3D is pretty straight forward requiring you to rotate the UCS to match with the plane you are wanting to dimension. See attached, hope that helps.

3D dimensioning 07-26-12.pdf