Blend TTT on model

[GabiM]

Hello,
First of all, i am using NX 4.0.4.2

I would like to know if is possible to create a Blend tangent to 3 faces. A command similar with the drawing TTT (tangent-tangent-tangent), but in model enviroment, between 3 faces.

What i have done is midsurface comand (or a plane) through the middle surface and intersect. I created 2 blends with Face Blend using that line (result of intersection comand) as tangent curve. The result is a TTT blend but was done in more operations and there is a line visible in the middle (not edge, only a visible line, the end of those 2 connecting blends).

I have attached a picture for better understanding.

Can this be done in one comand only? Or, is there a better way to do it?

Thanks,
Gabi Maiug
Mechanical Design Engineer

 

[JohnRBaker]

Not at the moment.

John R. Baker, P.E.
Product 'Evangelist'
NX Design
Siemens PLM Software Inc.
Cypress, CA

http://www.siemens.com/plm

http://www.plmworld.org/museum/

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

 

[Xwheelguy]

I'm not sure if this method exists in NX4 or not, but the capability is there in NX5. I will warn you that if it does exist, it's usually not pretty and it doesn't work in every situation...it just depends on the geometry with which you're working.

See the attached.

Tim Flater
Senior Designer
Enkei America, Inc.

http://www.enkei.com

Some people are like slinkies....they don't really have a purpose, but they still bring a smile to your face when you push them down the stairs.

 

[JohnRBaker]

That capability has been there for years (at least 10 or more), but it is very limited and a bit complex in it's application. Note that there have been some user-written tools which have been developed which provide a bit better support. I've attached the one that I've used in the past and which works about as good as any that I've seen.

John R. Baker, P.E.
Product 'Evangelist'
NX Design
Siemens PLM Software Inc.
Cypress, CA

http://www.siemens.com/plm

http://www.plmworld.org/museum/

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

 

[Xwheelguy]

The future will be brighter in this area soon enough. ;o)

Tim Flater
Senior Designer
Enkei America, Inc.

http://www.enkei.com

Some people are like slinkies....they don't really have a purpose, but they still bring a smile to your face when you push them down the stairs.

 

[GabiM]

nkwheelguy ,
thx for that info. That option exists also in NX4 but the faces I use are drafted in different directions and the middle one is also a drafted cylinder so i am not sure about how the Blend Cross Section law controled R1adius parameters should be.

John,
thx for the reply. I tried to open your file but it seems i cant. What version of NX is it? I am using atm 4.0.4.2

Thanks,
Gabi Maiug
Mechanical Design Engineer

 

[JohnRBaker]

Ignore the part file, it's the program (.dll) that's important and it should run OK in NX 4. When you run it, just select the pair of edges that defines the 3 faces you wish to blend.

John R. Baker, P.E.
Product 'Evangelist'
NX Design
Siemens PLM Software Inc.
Cypress, CA

http://www.siemens.com/plm

http://www.plmworld.org/museum/

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