surface with multiple patch nx8.5

[mathisudar2007]

Hello,

How to create a surface with multiple patches?

Input:

1 section and 2 Guides

please refer the file attached.

Thanks,
Mathi K

 

[PSI-CAD]

Hi Mathi,

You need to use Split Output Along Guide

Regards
Didier Psaltopoulos

http://www.psi-cad.com

 

[mathisudar2007]

Hello,

I need to use 2 guides for my surface output.

Thanks,
Mathi K

 

[JohnRBaker]

That's not possible, at least not using a single function to create a single feature.

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.

 

[mathisudar2007]

Hello,

Is there any other methods or work around for achieving the same?

In CATIA the designer can able to create this type of surface and the same he expect in NX too.

Thanks in advance,
Mathi K

 

[JohnRBaker]

Could you provide a picture showing ONLY the two Guide Curves and the single Section? In other words, hide the surface feature.

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.

 

[mathisudar2007]

Hello,

Please find the image.

Thanks,
Mathi K

 

[JohnRBaker]

Why do you care about seeing the individual face 'patches'? Most people ask for and expect the exact opposite, a single smooth face, with NO 'patches'.

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.

 

[mathisudar2007]

Hello,

If we could able to see the multi patch when we use the single guide,why not the same behavior is happenning if we use multiple guide(the one which CATIA does- image attached in previous post).

sorry.I may not be the expert to give you the reason why the behavior is needed? I just conveyed the CATIA designer's requirement,who rapidly changes his design as per the STYLING requirement.

Thanks,
Mathi K

 

[CNSZU]

It depends on what the designer wants to do with the surface. If the purpose is to check and adjust the quality of the surface, then after the surface is created, select the surface and select the command Show Poles and Show Knots. This will make the patches visible together with the entire pole structure. Then go back to the surface command and adjust degree and segments for guides and sections to control the number of patches. If the purpose is to create curves off the surfaces, you can do this by inserting Isoparametric Curve. Lastly, if he absolutely needs individual patches (for whatever reason), use the command Snip Into Patches.

NX9 Win8.1 64bit i7-3770K 16GB Quadro2000

 

[JohnRBaker]

The reason that you have the option to create ACTUAL multiple FACES when using a single Guide curve, and NOT when you're using two or more, is because when using two or three guide curves, they may not have the same number of segments and therefore there is no simple way of creating separate faces based on the makeup of the guides curves. For example, if one guide curve had 5 segments and the other guide had 7 segments, what exactly would you expect to see? In those situations, NX automatically creates a single face. Only when there's a single guide curve, irrespective of the number of actual segements, will there be no issues with where to start and stop the individual faces or what their shape will be. But what has been already noted, if you actually NEED to see the 'patches' which define a surface, which BTW does NOT have to be a one-to-one relationship to the number of faces, there are ways to do that. In other words, even if a surface only has a single FACE, it could still have more than one 'patch'. So are you sure that we're even talking about the same thing here? I mean there are 'faces' and then there are 'patches'. A 'face' is a 'physical' or topological characteristic of a surface, while a 'patch' is a mathematical construct. Generally speaking, since you can only pick faces and not patches there is NO need to 'permanently' display their boundaries. But since we provide a way to see them when needed, I don't see where anyone should be concerned.

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.