How can you model this part in NX5? 6

[RobLN]

A general question here, I'm having a hard time working out how to set up a sweep to get a part like the one attached below.
Any advice greatly appreciated.

 

[uwam2ie]

... oh I like this thread...
I 've looked at ervery solution. Here's my . Ok it differs from the orginal - just an other way is the idea - I did my design in Nx6 - And additional have a question to the experts.
As you can see I designed a tool. I should not intersect - but it does- where is my mistake?
thx in ad

 

[JohnRBaker]

OK, look at the attached file. I took your model and right near where your swept body transitioned from the line to the spline, I created a series of cross-section curves which will help you see how as the sweep made this transition the 'profile' of the sweep starts to twist ever so slightly as your guide curve also starts to twist. To see this better, open the model and without changing the display scale, slowly rotate the image about the Z-Axis from left to right (anti-clockwise) and watch the area in the vicinity of the lower part of front face of the Red cutter.

It's just the nature of the beast which is why it's so hard to model exactly what the volume of space that a rotating body moving along what in this case would be a 4-Axis cutting path (the cylindrical part would rotate while the cutter moved in a linear direction parallel to the axis of the cylindrical part with the axis of the tool normal to the axis of the cylindrical part).

John R. Baker, P.E.
Product 'Evangelist'
Product Design Solutions
Siemens PLM Software Inc.
Industry Sector
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.

 

[uwam2ie]

thank you John on your reply,
I there a better way to model such a cutter path?
thx in ad

 

[RobLN]

Thanks for all your feedback guys, pleased to see that my part has sparked some imaginative ways of solving the component model. I've got to just sit down and work some of it out in detail now... I've got an even more complex head style to model next week.

 

[JohnRBaker]

RobLN,

Are you actually manufacturing these items or are they just being modeled so that your 'pictures' look correct?

I mean these things remind me of quick-release fasteners from someone like Camloc...

http://www.youtube.com/watch?gl=GB&hl=en-GB&v=x6vt5XhBgFw

...or ZLoc...

John R. Baker, P.E.
Product 'Evangelist'
Product Design Solutions
Siemens PLM Software Inc.
Industry Sector
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.

 

[RobLN]

Hi John

I work for an international fastener company and we do manufacture those kind of parts here in the UK similar to the ZLoc item above. All new designs need to be modeled in NX now rather than the incumbent CAD software at that site (Pro-E I think...)

Some are machined and some are rolled but all of them need to be modeled correctly. Appreciate all your advice with the modelling Thank you.

Rob.