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Surface Finish in MBD

Question asked by Alessandro Tornincasa on Feb 18, 2017
Latest reply on Feb 23, 2017 by Alessandro Tornincasa

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Hi,

I've been defining a part with MBD by using plus/minus dimensioning.

I've created an isometric view with some general notes:

- Global and local surface finish

- General tolerances standard

- Undimensioned chamfers value

- Undimensioned fillets value

I've created a surface finish symbol for local surface finish.

In order to reference all surfaces that will have Ra 3,2 surface finish I had to drag surface finish arrow pointer and snap it to every surface. That should be done for both pockets.

Is there a quicker way to define those surface finishes in MBD ?

I tried to create a collection for all pocket surfaces but it seems that surface finish symbol ignores those colletions.

In attach is my part.

Thanks.

Alex

Oboe Wu Feb 23, 2017 10:37 AM

Correct Answer

Thanks, Alex.

Surface finishes today are not part of the DimXpert scheme, so they can't reuse the DimXpert feature collections yet. This is an area we are looking into.

Your approach of multiple leader lines works. It is more friendly to printouts where digital cross highlighting doesn't work.

-Oboe

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Test Part.SLDPRT.zip199.4 KB

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Casey Gorman Feb 23, 2017 9:55 AM

Alex,

I wish I could test/check on this for you, but I was laid-off about 3 weeks ago and no longer have access to MBD.

Casey

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S. Casale Feb 23, 2017 10:02 AM

Just a thought, atlhough I do not know MBD. The 3 surfaces are to have the same surface finish. Can't you use the all round symbol?

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Casey Gorman @ S. Casale on Feb 23, 2017 10:22 AM

That is a one way there.

With the MBD approach though one would like to associate all of the related surfaces so that they will highlight together in a 3D PDF or eDrawing file.

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Oboe Wu Feb 23, 2017 10:37 AM

Thanks, Alex.

Surface finishes today are not part of the DimXpert scheme, so they can't reuse the DimXpert feature collections yet. This is an area we are looking into.

Your approach of multiple leader lines works. It is more friendly to printouts where digital cross highlighting doesn't work.

-Oboe

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Alessandro Tornincasa @ Oboe Wu on Feb 23, 2017 3:56 PM

Thank you Oboe.

I've opened an ER because I believe that it would be important to give a quick and compact way to explicitate surfaces finish symbols and referenced surfaces.

This piece of information could be read by CAM for appropriate machining.

You are right about remininding me about printouts. The lesson from this blog post you wrote is clear:

MBD Implementation 10 DOs and 10 DON'Ts – Don’t Exclude Printouts

In my case one would either:

- preparare an isometric view dedicated to surface finished (like mine)

- Create projected views where surface finish symbols would be singularly put on surfaces. Like this:

Alex

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5 Replies

Casey Gorman Feb 23, 2017 9:55 AM
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Alex,
I wish I could test/check on this for you, but I was laid-off about 3 weeks ago and no longer have access to MBD.

Casey
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S. Casale Feb 23, 2017 10:02 AM
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Just a thought, atlhough I do not know MBD. The 3 surfaces are to have the same surface finish. Can't you use the all round symbol?
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- Casey Gorman @ S. Casale on Feb 23, 2017 10:22 AM
  Mark Correct
  Correct Answer
  That is a one way there.
  With the MBD approach though one would like to associate all of the related surfaces so that they will highlight together in a 3D PDF or eDrawing file.
  Like • Show 1 Like1
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Oboe Wu Feb 23, 2017 10:37 AM
Unmark Correct
Correct Answer
Thanks, Alex.
Surface finishes today are not part of the DimXpert scheme, so they can't reuse the DimXpert feature collections yet. This is an area we are looking into.

Your approach of multiple leader lines works. It is more friendly to printouts where digital cross highlighting doesn't work.
-Oboe
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- Alessandro Tornincasa @ Oboe Wu on Feb 23, 2017 3:56 PM
  Mark Correct
  Correct Answer
  Thank you Oboe.
  I've opened an ER because I believe that it would be important to give a quick and compact way to explicitate surfaces finish symbols and referenced surfaces.
  This piece of information could be read by CAM for appropriate machining.
  
  You are right about remininding me about printouts. The lesson from this blog post you wrote is clear:
  MBD Implementation 10 DOs and 10 DON'Ts – Don’t Exclude Printouts
  In my case one would either:
  - preparare an isometric view dedicated to surface finished (like mine)
  - Create projected views where surface finish symbols would be singularly put on surfaces. Like this:
  
  Alex
  Like • Show 0 Likes0
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Surface Finish in MBD

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