partial revolved section cut in NX3

[gieter]

I want to make a revolved section cut at a given angle, but only one branche.

In NX1 this was fairly easy: pick a rotation point in the parent view (e.g. centerpoint of a cilindrical shape) and then define a cut position. You then could leave the menu and place the view without having to select the second branch at the other side of the centerpoint. Afterwards you could easely change the arrow positions to narrow down your section area.

I have been trying to do this in NX3 and I can't find a way. After you select the parent view the 2 branches are already visibel and the first rotates with the mouse as soon as you have selected a center point. After selecting a cut position for the first branch you must choose one for the second. Doing this and editing the section lines afterwards (e.g. deleting the 2nd) will show an error.

What did I miss?

 

[Xwheelguy]

Please read the following thread & see if you can post an image here. It would be much easier (for me) to see what you want versus trying to describe it in an accurate manner.

Are you trying to create a section cut at a given angle but prevent the section from going completely through the rotation point to the other side of your part?

Tim Flater
Senior Designer
Enkei America, Inc.

http://www.enkei.com

 

[Xwheelguy]

If you are trying to create something like I described above, you're using the wrong type of section cut. You want to use the normal Add Section View (straight), select the parent view, then on the Section View toolbar, click on the Hinge Line icon & just to the right you will see the Inferred Vector icon. Pull it down to select At Angle & enter the angle which you desire the section line to be or define the angle using your preferred method, then place the section line (should be automatice after you enter angle) follwed by placing the view.

Get out of the Add Section View mode & then right click on the section line arrowhead that you wish to relocate & pick Edit from the MB3 pulldown. Select the arrowhead again & use the Point Constructor to move the arrowhead to the center (or wherever you want it to stop short). Hit Apply or OK then update your views. No errors for me.

Tim Flater
Senior Designer
Enkei America, Inc.

http://www.enkei.com

 

[gieter]

nkwheelguy,

Thanks for your intrest.

The solution you mention is a posibility. The only problem is that the projection angle of the section view is changed if the angle of the section changes. For simplicity we want all our section views to stand "upright". In your solution the view is projected perpendicular to the hing line (as it should according to standard rules, but we don't work like that).
Now I have to edit the view and change the rotation angle manualy. In NX1 this was completely associative when using a revolved section cut.

 

[Xwheelguy]

That's all well & good that it worked in NX1, but a revolved section cut is meant to have 2 legs, not one. So given what you're claiming, I'd say that being able to eliminate 1 leg of a revolved section cut was a bug or just overlooked in NX1 & has since been fixed. If it's that big of a deal, then maybe it's time to follow drafting standards. We can't always have our cake & eat it too regardless of what was done in the past.

Tim Flater
Senior Designer
Enkei America, Inc.

http://www.enkei.com

 

[gieter]

Sorry, but I can't agree with you guy's.

The purpose of a draft is to communicate production information to the people involved. This must be tailored to their needs and their level of education should be taken into account.

Drafting standards are very straight forward to people who understand projections and they should be used when communicating with customers and suppliers.

The people we have to work with have little education if any at all. The drafts help them in positioning the right things on the right place. We try to keep our drafts as simple as possible.

I consider a high-end CAD system a system that allows for maximum flexibility with minimal user input. This includes "cheating" on official standards to make your own.

 

[ewh]

That's fine as long as your dwg format does not state interpretation per ASME Y14.5 anywhere.

 

[gieter]

No, that never happens. These drafts are used only internal and tolerances are not an issue.

 

[Xwheelguy]

You don't have to agree with us. There isn't anything to agree or disagree about. Revolved section cuts have 2 legs....PERIOD. Otherwise, it's NOT a revolved cut, it's an angled section cut, no matter what you could do in NX before. Incidentally, you can associate the section hinge line to your model edges or even sketch curves if you're that determined to have everything associative. The hinge line angle doesn't have to be manually entered. However, the view angle will not be vertical like you want, but you can manually enter that, which shouldn't be a big deal since you stated you want all of your resulting sections to be vertical and to me that means you won't ever be changing that angle again.

So with all of that said, UGS is supposed to create drafting commands for every type of non-standard situation just so you don't have to spend 30 seconds manually setting a view angle? Sorry, but that isn't going to happen. NX would end up having 20 different types of section views and NX would be such a bloated & expensive software that no one could afford to buy it or learn to use it quickly....and something tells me that's why you're allowed to change the view angle in the first place....so you CAN deviate from drafting standards.

Don't get me wrong, I completely understand what your complaint is & I do empathize with you, but UGS isn't going to tailor their software to meet every single drafting situation, no matter what you consider high end. I don't say that to be rude or mean...that's just the way it is.

I would suggest that if you really think you have a good argument that the software is not functioning AS INTENDED, then you should call GTAC at (800)955-0000 and tell them about it. Note that "as intended" probably will not include your situation, because NX is not intended to be used for creating shop docs as much as it is to create drawings/blueprints. I should also forewarn you that after being a UG user for close to 10 years, the "high end" CAD argument goes about as far with UGS as I can kick my monitor in bare feet.

Sorry no one can give you exactly what you want, but that's pretty typical in the CAD world & especially with NX. I hope the suggestions we did give you help out in some fashion.

Tim Flater
Senior Designer
Enkei America, Inc.

http://www.enkei.com