NX7.5 - MOVE FACES 5

[CAD2015]

Hi,
In the attached file, I need to move the yellow faces on minus Z axis with 2mm. I tried to use Synchronus Copy Face followed by Synchronous Paste, but I got lost.....
I have some option, but I am not so happy; I'd like to get your suggestion in this matter.
Thanks

 

[JohnRBaker]

OK, even after cleaning-up the model by performing various Join Face, Heal Geometry and Optimize Face operations, I still was NOT able to move the yellow faces directly, therefore I decided to take a totally different approach to the problem.

I simply cut the model up into three pieces, moved the relevant part (with contained the yellow faces) 2 millimeters and then used Synchronous modeling to move the matching faces from the other two sections of the model 2 millimeters and then United all three parts back together into a single model (attached below).

John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
Siemens PLM:
UG/NX Museum:

To an Engineer, the glass is twice as big as it needs to be.

 

[CAD2015]

Thanks a lot! I am at home now, but I can't wait until tomorrow morning to open your link. Brilliant idea to separate the target area and extended later on!

 

[mmauldin]

I have no idea why this works, nor do I claim that it is a better way than John's solution. This is what I did:

Added your part to an assembly.

Promoted the component, then deleted the component from the assembly.

Removed parameters from the promoted body.

Moved the faces below the thread up 2mm.

Moved the faces above the thread up 2mm. (Couldn't move them together.)

I tried to move the faces above/below the thread in the original model but they wouldn't budge.

 

[CAD2015]

Thanks mmauldin,too!

I have to face another challenge: I need to adjust the yellow faces (please, see the drawing side of the attached file), from 6 mm to 7mm.
It looks like this test is even more difficult than the previous one.
I was thinking of remodeling this part, using just parameterized features that would enable me to adjust the math data far easier.
But I'd like to solve this new issue using this model.
I a long run, learning to fix this problem would be beneficial.
Thanks

 

[JohnRBaker]

Note that there was NO need to go through that whole Assembly/Component/WAVE link workflow. If you had done a simple 'Join Face' operation, the model would have been 'repaired' enough to where your approach would have worked on the original model as given to us by mz7dyj.

That being said, I actually like your approach better than mine since it's actually a bit more 'direct' in the application of the edit, albeit if there's no problem with the fact that this has effectively MOVED to original model in space, which shouldn't be a problem unless it was modeled in the context of some higher level product and it's 3D spatial position was critical to some downstream use of this part. Barring any of those sort of issues, it should be just fine. BTW, your final result is really not all that different than mine except that your case, "instead of raising the bridge, you lowered the river" as it were ;-)

John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
Siemens PLM:
UG/NX Museum:

To an Engineer, the glass is twice as big as it needs to be.

 

[JohnRBaker]

Yea, you're WAY BEYOND the sort of thing that even Synchronous Modeling was intended to address. You're right in assuming that you've reached the point where it's time to start over, at least with respect to the yellow faces, which can be easily deleted thus giving you a 'clean slate' to start adding the new 'thread' feature.

BTW, GOOD LUCK

John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
Siemens PLM:
UG/NX Museum:

To an Engineer, the glass is twice as big as it needs to be.

 

[CAD2015]

OK, thanks.
How would you create the yellow rib?
I am thinking of using the Helix feature; do you have a better idea?

 

[mmauldin]

If you are going to recreate the part, I would start out as a solid and hollow it out at the end. A helix can be used to create the thread, but it lacks parametric positioning. A sketch coupled with a wrap curve will give more control. Attached is a packing tube that has similar features for reference.

 

[mmauldin]

Since it is kind of slow here today, here is an example closer to what you are doing.

 

[CAD2015]

Very nice, I like that!
Thanks again, mmauldin !

 

[Toost]

Mz7dyj,
Didn't you like the proposal i gave you back in September when we discussed how to model this part ?
See :

http://www.eng-tips.com/viewthread.cfm?qid=330076

Regards,
Tomas

 

[CAD2015]

Toost,
Yes, I remember.
I had forgotten………..
Sometimes, I concentrate so much at a topic that I forget its connection in the past.
At that time, probably I hadn’t practiced that drill enough to have it fix as new skill............ Didn’t thing that I maybe encounter it again in the future.
I’ll make sure it’ll not happen again!
It’s nice you reply me, thanks for reminding me.

Regards

 

[PSI-CAD]

Hi,

I would like to comme back to the first question of this thread, because I succeed to move the yellow faces

In fact I found that your body is very far from the absolute and in a strange position.

So I reposition it to the absolute

It was no enouch because I found that the rotation with my space pilot was very slow !!:

So I export the parasolid and import it in a new part

Then I use optimize face and I was able to move the yellow faces: have a look ath the result


Regards
Didier Psaltopoulos

http://www.psi-cad.com

 

[carlharr]

Good solutions all round here I think, I've enjoyed watching this one!

 

[CAD2015]

Thanks Didier,
I'd like to study your reply; I may ask you some info next days.....