how to sweep without edge blend? (NX12) 3

[qreason]

Hi,


I created a custom thread using 'Swept' with a sketch and a helix, after succeeding, i noticed the edges of the thread are rounded instead of pointy like in the original sketch... Is there a way to get rid of this edge blend?


Thanks in advance,


Quentin

 

[qreason]

here's an other image:

 

[JohnRBaker]

It's not a 'blend', it's the profile of the model being an approximation. There should be an option with the word 'Exact' in the title. Toggle that option 'ON' and see if it helps.

John R. Baker, P.E. (ret)
EX-Product 'Evangelist'
Irvine, CA
Siemens PLM:
UG/NX Museum:

The secret of life is not finding someone to live with
It's finding someone you can't live without

 

[PSI-CAD]

Hi Quentin,

Set the switch Preserve Shape

Regards
Didier Psaltopoulos

http://www.psi-cad.fr

 

[Toost]

"As said above", NX will , unless you tick the "preserve shape" approximate the entire selected profile using the distance tolerance. You will probably only get 2 faces on the total sweep.
with the Preserve shape NX will still approximate if needed , but it will honor the section segments.
This is done to save computing power, you might else get "data-monster-surfaces" , i have seen a Part with 2 faces and the file size was +40 Mb.
since the shape in that +40 mb part should be a smooth hydrofoil, the file size is an indication that the faces are overloaded and most probably not smooth.

Regards,
Tomas