Showing Symmetric Dimension in Drawing

[sk_astroman]

Hi,


How to show the dimensions which are symmetric to a center axis as shown in figure.


Dimension has to show with '=' symbol with a cross line at mid of the dimension line.


I'm using Pro-E WF4.


View attachment 5785

 

[dr_gallup]

What drawing standard do you use? That's not how it's done in either ANSI or ISO.

 

[sk_astroman]

I think this is old standard.


Fact is that drawing in the above picture made using Medusa. Now I'm in the task of converting it into Pro-E.


I have seen some older drawings with '=' symbol with dimension earlier, but not cross line at mid of the dimension line.


But I have to match theThink 3in Pro-E

Edited by: sk_astroman

 

[copyboy]

Use this form


View attachment 5788

 

[dr_gallup]

Use the proper symmetry geometric tolerance. You will have to create a datum(s) as well.

View attachment 5789

 

[sk_astroman]

Mr.Gallup adn Mr.Copyboythank you for your input.


Fact is that I have to match my Pro-E drawing as per input. I can not use extra dimension or GD&T to define the symmeticity. Because I'm in the process of just converting input drawing into Pro-E.


Anyway I'm gonna use symbols in my task to match it.


-Astroman