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# Solution to design a bend tube

Phenom

Hi,

I've modeled a bend tube like the .prt attached, but before I tried to use the 'Combined projecton' command without success. Which solution do you use to build a bend tube like the pdf attached ?

Thank you...

Using NX 11 / RuleDesigner PDM

11 REPLIES

# Re: Solution to design a bend tube

Phenom
We tend to model the part with the most bends in them, WAVE link DOWN to the one with the least bends, then use something like Trim Body to cut off the additional bends and Unite a Tube for the straight section taking the place of the bends.

I know, it seems backwards but that's what works best for us.
-Tim

# Re: Solution to design a bend tube

Siemens Phenom

Hi Cubalibre,

I guess the combined projection failed as there was an ovelapping intersection (a line in a view represented as a point in another orthogonal view).

Frankly speaking i tried it myself and could not get the model in less steps than yours.

One other option could be to utilize the bend points co-ordinates for creating the pipe.

Best Regards

Kapil

# Re: Solution to design a bend tube

Gears Phenom

We do not do this much, but this is how we used to do it in I-Deas years ago.

We put points at the start and at all of the theoritcal sharp corners.

Then we put a point between these points.

Then we put a coordinate system at each thoeritcal sharp corner.  Align the X and Y axis from Orgin point to mid points.

We sketch on each coordinate system draw a line from orgin to mid points.

We add our fillet in these sketches.

This kind of long and drawn out, but this is how we did it years ago.

See Example NX11

thanks

# Re: Solution to design a bend tube

Phenom

Hi to all and thank you for yours ideas.

Thank you...

Using NX 11 / RuleDesigner PDM

# Re: Solution to design a bend tube

Phenom

Ciao @cubalibre00,

I made many tube like this when I worked with companies that made kitchen...

I do as well as in the attached file.

p.s. the value 5x3/2 is the bend radius usually 3/2 of the tube radius.

Ciao

Cesare

# Re: Solution to design a bend tube

Siemens Valued Contributor

Hello all,

Many of you may have access to NX Routing Mechanical with your Mach bundles.  NX12100, NX13100, and NX13300 include a routing base license that allows you to use basic routing functionality.

While there's several ways to create this using routing, I used a simple way that didn't require me to do any math, just use the dimensions on the pdf directly.  (Okay, I did change the default bend radius to 20 by adding half the stock diameter to the inner bend radius. )

I've attached a video.

(view in My Videos)

Thanks

Doug

# Re: Solution to design a bend tube

Phenom

Hi @Doug,

I don't have licenses you have mentioned. Thank you for the informations.

Thank you...

Using NX 11 / RuleDesigner PDM

# Re: Solution to design a bend tube

Siemens Phenom

You can create this part in modeling using sketch and sweep a solid along the curve - or did I miss something?

(view in My Videos)

# Re: Solution to design a bend tube

Phenom

Hi @Dave_Walker,

this is the other solution, that I use sometimes.

Thank you...

Using NX 11 / RuleDesigner PDM