cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
Showing results for 
Search instead for 
Did you mean: 

How to move a leader from GTOL to dimension in a dwg

ptc-5504473
Newbie

How to move a leader from GTOL to dimension in a dwg

Hey all,

I am on Creo 2 and I am running into a problem where I am recreating a drawing and I can't seem to get the leader line to stick with the dimension, it always wants to go to the GTOL as soon as it is created. I beleive this is also the root cause to why I can't get my B datum in the right location.

I created the GTOL is a small assembly (2 pieces a base and weld nuts) then brought it into my drawing and regardless how many different ways I do it I still have the same result.

Any help would be appreciated!

Thanks

Sam


Before.png After.png

19 REPLIES 19

Re: How to move a leader from GTOL to dimension in a dwg

Hello Sam and welcome to the forum.

I share in your frustration. I just tried doing this exact thing and it wouldn't do it.

Really painful for something so basic and common.

The fact this is an assembly frustrates this even more.

I hope someone from PTC support will comment here with a "how too" best practices video.

Personally, I've had to give up on PTC's GD&T implementation.

Re: How to move a leader from GTOL to dimension in a dwg

Creo, even in a part as ASME Y14.42 3D GD&T, is not allowing me to create the following example...

http://www.geotolmeadows.com/newsletters/2012/pic1.jpg

Re: How to move a leader from GTOL to dimension in a dwg

It can do that one. But don't get me wrong, I'm not defending it.


Steve Williams
Pro/E Version 15/16 (Circa 1995/1996)

Re: How to move a leader from GTOL to dimension in a dwg

Per the original question. How did you get the leader to come from the dimension and not the GTOL box?

Re: How to move a leader from GTOL to dimension in a dwg

I am creating a new assembly drawing that was built from new parts. The 2nd picture you see is of just the base plate. And I am getting the feeling that the leader behaves differently when you are doing GDT on a single part versus an assembly.

Also interesting to note when I go into my assembly model to apply the GTOL the leader is in the location that I want it (on the dimension) however when I show it in the drawing it does the opposite

Re: How to move a leader from GTOL to dimension in a dwg

Try reloading your .dtl file for that drawing.  It worked for me

Re: How to move a leader from GTOL to dimension in a dwg

The problem is that PTC has a limited set of ways they do GD&T. When it comes to copying an old drawing or trying to make your GD&T look the way your company is used to seeing it, sometimes that conflicts with the limited ways that PTC offers.

I know Antonius got over the limitation by using symbols instead of the built in functionality. I got over also by accepting that sometimes I can't show it excatly how I want to show it but I choose one of PTCs limited ways and it is still fully to the standard and there is no chance for mis-interpretation.

Sorry it's not a real answer, but hopefully it will save you time and may give you a couple of ideas as to how to proceed.

Steve


Steve Williams
Pro/E Version 15/16 (Circa 1995/1996)

Re: How to move a leader from GTOL to dimension in a dwg

I am with Antonius. Symbolism over substance (that is not reliable).

Re: How to move a leader from GTOL to dimension in a dwg

That's funny, I didn't realize I had done it the way the original question was asking for.

I simply added the GDT frame to be attached to the dimension in the definition box.

gdt.jpg

I have never seen Creo allow you to attach the "B" datum to the leader of a dimension as show in the original image though.


Steve Williams
Pro/E Version 15/16 (Circa 1995/1996)

Re: How to move a leader from GTOL to dimension in a dwg

I am coming to the conclusion that it will work when being applied to a single part but not to an assembly. But I do appreciate the instructions that you posted

Re: How to move a leader from GTOL to dimension in a dwg

I can test it. Are these assembly features? Are you using created dimensions or shown dimensions?


Steve Williams
Pro/E Version 15/16 (Circa 1995/1996)

Re: How to move a leader from GTOL to dimension in a dwg

It seems to work on an assy also. It may be the dimension standard you have set in the drawing setup file. That can affect the way the GD&T attachments work.

gdtassy.jpg


Steve Williams
Pro/E Version 15/16 (Circa 1995/1996)

Re: How to move a leader from GTOL to dimension in a dwg

Creo 2.0 gives an error message when you try to tie a datum tag to a GTOL that is tied to the dimension and tells you to tie it to the dimension instead. When you do that, it shows the tag on the opposite side of the circle on the object. I am sure this is a config issue, but the documentation is so poor that it is nearly impossible to duplicate this.

I was trying to do this in the model in ASME Y14.42 mode.

Re: How to move a leader from GTOL to dimension in a dwg

I'm in CREO 2 also. I avoid doing the GD&T in the model simply becuase that's added complication. I do it in the drawing, but make sure it's still referenced to the model, it's easier, in my opinion.

I also noticed that in the model it shows one way but will show it differently in the drawing.

The images below, I did the GD&T in the model, then I showed the dimension and annotations in the drawing, they do not show the same, even though they are the same

dwggdt.jpg

modelgdt.jpg


Steve Williams
Pro/E Version 15/16 (Circa 1995/1996)

Re: How to move a leader from GTOL to dimension in a dwg

AHA! So the datum tag is related to the dimension. Thanks for taking the time to clarify, Stephen.

Re: How to move a leader from GTOL to dimension in a dwg

Yes, I missed stating that didn't I. It's really confusing to see it one way in the model and not know how it will translate to the drawing. That's why I apply my GD&T in the drawing. It's still in the model though. It just makes me a little less crazy.

Steve


Steve Williams
Pro/E Version 15/16 (Circa 1995/1996)

Re: How to move a leader from GTOL to dimension in a dwg

There are many times when I create the GTOL in the model and show it in the drawing just so I can switch symbols to get the GTOL ID. I then create a note and map the GTOL ID to it (and delete the actual GTOL). This way I get the GTOL frame made for me while still maintaining some associativity, but I have much more freedom with the note. This won't always work, and I don't know how it works with frames with a datum tag attached.

In the past I have needed to place a GTOL as a free note, but I couldn’t get it to move with its view (very annoying, it would constantly get lost). By using the method above I could relate the note to the view.

Re: How to move a leader from GTOL to dimension in a dwg

Great tip, Kyle.

My bane is the flag connection at the end of the leader line of a dimension. I apply it free; relate to view, and sometimes relate to the feature (dimension).

It is now a habit so it is easier but I keep trying to find a way...

Re: How to move a leader from GTOL to dimension in a dwg

File --> Prepare --> Drawing Properties --> Detail Option

In "Option", Find for "gtol_datums" , Set Value as "std_asme"

Announcements