apply constraints between drawn circle and edges

[lgnx]

Hi,

Please see the below image, i need to make those two circles tangent to dovetail edges. Geametric constraints option not picking the edge, only picks circle that is drawn manually. am i missing something? Please help me.

 

[JohnRBaker]

Are we talking about a Sketch? If so, you'll need to extract the relevant edges of the body into the Sketch prior to attempting to Constrain the Sketched circles to the 'edges'.

John R. Baker, P.E. (ret)
EX-Product 'Evangelist'
Irvine, CA
Siemens PLM:
UG/NX Museum:

The secret of life is not finding someone to live with
It's finding someone you can't live without

 

[lgnx]

Hi JohnRBaker,

is that "need to extract the relevant edges of the body into the Sketch" applies in drafting? My problem is with drafting.

 

[JohnRBaker]

Are you trying to create a Sketch in the Drawing?

John R. Baker, P.E. (ret)
EX-Product 'Evangelist'
Irvine, CA
Siemens PLM:
UG/NX Museum:

The secret of life is not finding someone to live with
It's finding someone you can't live without

 

[lgnx]

yes, i draw those two circles and i need to make them tangent to those dovetail edges.

 

[JohnRBaker]

You're still going to have to get those Curves 'imported' into the Sketch before you can use them to Constrain other Curves.

John R. Baker, P.E. (ret)
EX-Product 'Evangelist'
Irvine, CA
Siemens PLM:
UG/NX Museum:

The secret of life is not finding someone to live with
It's finding someone you can't live without

 

[Ehaviv]

I suggest to make the sketch in the
Master model and use reference set
To see them in drafting.

 

[lgnx]

I created a reference set with that sketch. Now how to show that reference set in the drawing?

 

[Ehaviv]

In the modelling of the drafting part.
Move the circles to a layer.
And then switch to drafting.

And use visible in layer for the view
Seeing make it visible and for the
Other views make them invisible in view.

 

[Ehaviv]

I mean in the non master modelling part.
Move the circles to a layer.
And then switch to drafting.

And then switch drafting.
And use the visible in view functionality.

For the wanted view make it visible in view
And for the others use invisible in view.

 

[Ehaviv]

see this part for an example

 

[Ehaviv]

and this the second part

 

[mmauldin]

Also, make sure your selection box is not set to "Within Active Sketch Only". This will prevent you from selecting model edges and other sketch curves.

 

[Toost]

1) What version of NX is this ?

If I guess, you have modeled the dovetail piece as a solid body.
Now you are documenting this on a drawing, and you need to draw the circles describing how to measure the dove tail, - Right ?
( I can imagine that one places two very exact cylindrical pins in the dove tail and then measure between these two. ?)

If you have placed the view of the dovetail on the drawing
Select that view, right click , - Active sketch view
this action will draw the curves in the model-space of that view, and thereby enabling options like tangency constraints.
Also , the scale will be correct.
- IF the active sketch view isn't this particular view, you will not be able to create any constraints at all.

note Mmauldins tip, you have to enable selection to at least "Within work part".

Regards,
Tomas

 

[lgnx]

Toost,

Thanks for the help. Active sketch view worked fine. But i wonder if its so simple as u said, why all that reference set, layers etc needed? any disadvantages with "Active sketch view"?

am using NX 11.
YES, you are absolutely right about those circles. Its for measurement.

Thank you all for your inputs. Since am just started with NX, i couldnt understand layers and all that. i will keep watching youtube etc to learn. Thanks.