How to make a datum tag on a diameter

Forum|Forum|12 years ago
March 17, 2014
2 replies
30326 views

Hello,

Please help me with creating a datum tag on a diameter according to the pic below (creo parametric 1.0)

Thnx for help

General

Best answer by neomechanikos

If you haven't already, set your GTOL standard to ASME or ISO, etc. in the detail options. If you don't have the right standard set you won't be able to create it. File-->Prepare-->Drawing Properties-->Detail Options. Go to "gtol_datums". (Creo 2.0)

Create a model datum. In drawing: Annotate tab-->Model Datum pulldown-->model datum axis...follow the prompts to create it on a cylinder. If you already have a datum, select it then right click --> properties. I usually create mine in the model and not the drawing.
In the new window, give it a name, select the display button on the right then select "In Dim", hit the button to the right and select your diameter dimension.
Now you can move your datum to where you want it. If you do the above in the model, don't forget to show the datums in your drawing.

I've never had a problem with datum tags but I skipped Creo 1.0

T

TomD.inPDX

17-Peridot

The idea is that you re-assign datum tags to features you want them to be assigned to. in this case, you want a leader. I find the implementation cumbersome and I choose to use a customized symbol instead.

See this discussion. You will find a generic symbol attached to the last post.

Datum Tag problem

T

TomD.inPDX

17-Peridot

And be careful with Creo 1 and datum tags. FILE OFTEN! While moving the tags around the screen will freeze and then cause a fatal crash.

N

neomechanikos

Answer

1-Visitor

If you haven't already, set your GTOL standard to ASME or ISO, etc. in the detail options. If you don't have the right standard set you won't be able to create it. File-->Prepare-->Drawing Properties-->Detail Options. Go to "gtol_datums". (Creo 2.0)

Create a model datum. In drawing: Annotate tab-->Model Datum pulldown-->model datum axis...follow the prompts to create it on a cylinder. If you already have a datum, select it then right click --> properties. I usually create mine in the model and not the drawing.
In the new window, give it a name, select the display button on the right then select "In Dim", hit the button to the right and select your diameter dimension.
Now you can move your datum to where you want it. If you do the above in the model, don't forget to show the datums in your drawing.

I've never had a problem with datum tags but I skipped Creo 1.0