best practice advice blending 1

• Aug 25, 2011

• #2

JohnRBaker

Mechanical

Jun 1, 2006

35,444

Just looking at the picture it's kind of hard to tell what's up. May I suggest that you chop-out that piece and upload and I'll that a look. If you can't load the entire part than just create a block which 'swallows the pictured corner of your mode and perform an...

Insert -> Combine -> Intersect...

...operation selecting both your model and the block. Now either export the model as a Parasolid model and upload it, or go to...

Edit -> Feature -> Remove Parameters...

...blow away the features and upload that model.

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.com/museum/

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

 

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• Aug 25, 2011

• Thread starter
• #3

uwam2ie

Automotive

Jul 11, 2005

1,008

parasolid....

 

 http://files.engineering.com/getfile.aspx?folder=541bb160-f736-4a8d-9f12-b452ec687d6b&file=blend.x_t

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• Aug 26, 2011

1
• #4

mmauldin

Bioengineer

Jul 16, 2004

489

I know this doesn't answer the original question, but adding a .002 edge blend between the top surface and the chamfer allows to 5mm edge blend to flow around the bosses.

Just in case you need to resort to cheating.

 

 http://files.engineering.com/getfile.aspx?folder=a4ade5f6-04c0-4b7f-8b83-c8f940c5932f&file=blend_mm.jpg

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• Aug 26, 2011

• #5

mmauldin

Bioengineer

Jul 16, 2004

489

Actually, it works with a .0001 blend radius, and I wouldn't even call that cheating.

 

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• Aug 26, 2011

• #6

JohnRBaker

Mechanical

Jun 1, 2006

35,444

uwam2ie, what version of NX are you running?

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.com/museum/

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

 

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• Aug 26, 2011

• #7

JohnRBaker

Mechanical

Jun 1, 2006

35,444

And if you did do as mmauldin suggested, which BTW is one of the 'tricks' we recommend in situations like this were you're attempting to 'roll' a blend over what is in reality a 'sharp' edge, but you really need for that edge to have remained 'sharp', you could take mmauldin's model and export it out using the 'Heal Geometry' function and REMOVE all of those 'tiny' faces and still leave the blends behind. The model will be valid, just that the tiny little 0.0001 blends will be gone, replaced by new 'sharp' edges.

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.com/museum/

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

 

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• Aug 26, 2011

• Thread starter
• #8

uwam2ie

Automotive

Jul 11, 2005

1,008

I'm using Nx7.5.4 but nx 6.0 where also ok
thx

 

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• Sep 1, 2011

• #9

rodog

Automotive

Sep 1, 2011

2

Blend the "outies" first, the ones your "innie" blends are going to cross over.

 

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• Sep 1, 2011

• #10

JohnRBaker

Mechanical

Jun 1, 2006

35,444

And in NX 8.0 we have given you a new Synchronous Modeling operation which will allow you to SWITCH the order of blends which cross, irrespective of the order you originally created those blend features in or even if they're actually blend features.

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.com/museum/

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

 

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• Sep 2, 2011

• #11

slayer001

Industrial

Feb 24, 2011

41

I also recommend the use of variable blend points in cases like that

 

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