Rotating while extruding "twist/screw" 1

[Brianpore]

Hi all, this is my first time posting on the forum. I have been using NX for about 4 years and came across a problem I cannot model.

To simplify the problem, I will use a block. I am trying to extrude the block along an axis that is in the center of the block, while having the block rotate about that axis 2 full rotations over 4 inches. So it would be one full rotation every 2 inches.

For the life of me, I cannot figure out how to rotate the block while extruding it. Please help!

Thanks you,

Brian

 

[JohnRBaker]

By 'Block', I assume you mean a rectangular profile/sketch, correct?

Is, draw your profile/sketch and then create a 4 inch long Line normal to and centered on your profile/sketch, to represent the axis of your 'twisted-soild' that you want as a result. Now select Insert -> Sweep -> Swept... and select the 4 inch long Line as your single Guide and the profile/sketch as your single Section, using for your Orientation Method a Rational Law suing the Linear Law Type setting the Start and End Values to 0 and 720 and hit OK. Your result should look like the attached image.


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/

 

[cowski]

John,
Some of the edges don't quite line up. Is the axis not in the center of the block or is something else going on there?

 

[JohnRBaker]

I'm sorry, I wasn't as careful when I created my example as I had been when I described the procedure. The image below matches exactly what I described previously.

Again, sorry for the confusion ;-)


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/

 

[Brianpore]

John, Thank you very much for the fast help. Your explanation was exactly what I was looking for. I never experimented with the different law functions before and that did the trick.

Have a great week!

Brian

 

[Brianpore]

John,

I do have an additional question. I got it to rotate and am playing with all the preferences, but can't get it to rotate the opposite direction. Any help would be great.

Thanks!

Brian

 

[JohnRBaker]

Have a great week!

Let's hope so!

The first round of customer beta-testing of NX 6 started this morning and will continue for the next several weeks.


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/

 

[JohnRBaker]

Brian,

Just use 0 to -720 degrees for your Angular Law.


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/

 

[Brianpore]

I got it, as its simple to add a negative sign. Lack of thinking on my part. Thanks again and have a great week.

Brian