NX7.5 - Surfacing skill 10

[CAD2015]

Hi,
I'd like to close the geometry, using a surface that must be tangent to the green one.
How would you do it?.................
Thanks

MZ7DYJ

 

[Twullf]

I would look into using a Mesh surface, using splines or lines you can create limits on the created surface then during the actual surface creation you can set constraints such as tangent.

​

 

[CAD2015]

Mesh Surface has 7 different options.........!

MZ7DYJ

 

[JohnRBaker]

WHAT "GREEN" SURFACE?

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]

I apologies.....I didn't attached the NX file.
Here we go!


MZ7DYJ

 

[MickyV007]

Have a look.

Best regards,

Michaël.

NX7.5.4.4 + TC Unified 8.3
Win 7 64 bit (Intel(R) Xeon(R) CPU X5650 @2.67GHz)
24.0 GB
NVIDIA Quadro 4000 + NVIDIA Tesla C2050

 

[CAD2015]

MickyV007,

Great, thanks a lot!

Any other suggestion from other members would be welcome!
Thanks for your time!


MZ7DYJ

 

[SDETERS]

I used through Curves. Set one section tangent and the other as G0 position.

 

[CAD2015]

SDETERS!

Superb!
Thanks!

MZ7DYJ

 

[Toost]

Here's the Schoolbook solution. A Through curve Mesh using the endpoints of the arcs as points in the primary strings. ( = three strings in primary direction of which 2 are points.)
The resulting surface is "compressed" in the ends which can be seen if you turn the display mode into Static Wireframe.
In this case it's probably ok since the cross direction is circular. ( The pole structure looks good.)

Regards,
Tomas

 

[CAD2015]

Another really nice tip!
Thanks a lot, Toost!


MZ7DYJ

 

[mmauldin]

Tomas' answer is probably smoother, but "Though Curves" with an extra controlling face gives a decent result.

 

[SDETERS]

What is the difference between the two different ways of doing things? I overlay the two parts and they are roughly the same with in a couple tenths or so. toost says this is schoolbook? I do not have a strong surfacing skills so could someone please explain the differences between the two surfaces.

 

[CAD2015]

Nice, thanks mmauldin!

MZ7DYJ

 

[JohnRBaker]

By 'schoolbook' I suspect that Toost was referring to the idea that years ago virtually all surfaces had to be four-sided, that is you needed to have four boundary 'curve'. In his example, he took advantage of the fact that you're allowed to use points for one or two of those 'curves' and still get a valid 'four-sided' surface.

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.

 

[wackolacko]

Can also use studio surface.

John Lackowski
NX Support
Win 7 64bit NX 7.5.4.4 TC 8.3.1.1

 

[CAD2015]

Great tip!
Thanks wackolacko !

MZ7DYJ