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marcvonamsberg11-Visitor
1-Visitor
January 31, 2018
Question

model based definition (MBD) assembly start part

  • January 31, 2018
  • 3 replies
  • 7964 views

Hello,

 

Our company is investigating model based definition for parts and assemblies. Going through the CREO 4.0 tutorial on PTC university, we haven't seen a start part for an assembly. Is there one available?

3 replies

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DaveMartin16-Pearl
16-Pearl
January 31, 2018

I don't know if PTC provides one, but I would recommend creating your own that corresponds to your company's needs. The ones from PTC are fairly generic (and I am not a fan of their layering scheme).

 

Download a free copy of MIL-STD-31000 and you should be able to get all the information you need on setting up an MBD-ready start assembly.

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marcvonamsberg11-VisitorAuthor
1-Visitor
January 31, 2018

Thanks for that, Dave. Can you elaborate on why the layering scheme (this is the same as states?) is too generic?

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DaveMartin16-Pearl
16-Pearl
January 31, 2018

Layers are not the same as Combination States.

 

Layers are collectors of objects in your model, and they are used to perform operations on multiple entities - the most common of which is controlling visibility (e.g., turning off display of some or all datum planes, turning off display of fasteners, etc.).

 

The Combination States are the heart of MBD, which can include a Saved Orientation, Simplified Rep, Explode State, Display Style, Layer State (which I find don't work that great), and (as of Creo 4.0) Appearance State.

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barryschaeffer113-Aquamarine
13-Aquamarine
May 19, 2020

Dave,

 

I've been meaning to ask you about your experience with Layer States.  You don't seem too fond of them.

 

Why?

 

Barry

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doneill2-Explorer
2-Explorer
April 24, 2020

We are also looking into MBD... The problem I'm having right now is with Assemblies.

I'd like to show a BOM with callouts in the model... (We would like to get away from drawings altogether.)

I'm missing it somehow.  Surely there is a way to do that.      

 

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marcvonamsberg11-VisitorAuthor
1-Visitor
April 24, 2020

As you can see by the date of my last post was in 2018, personally I've not worked on this subject for a long time. Although I did lots of work related to this subject, unfortunately I can't give you a definitive answer to your question. PTC supported my efforts with a trial version of Vuforia View, and fantastic tech support on multiple occasions. That said, although the technology of View was incredible in it's potential, I wasn't able to progress to the point where my CREO assembly with all the meta-data in the BOM, such as part numbers, material, etc., was transitioned to an MBD assembly. There was discussion of MBD being addressed in version 7. If this is the case, the MBD assembly BOM would be an earth shaking improvement to the 3D CAD world.

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    doneill2-Explorer
    2-Explorer
    April 25, 2020

    Thank you for the response! 

    Yeah... I noticed it was an older post, but it's what came up when I did my search... and it's still relevant.

    You just saved me some time... I appreciate that!

    I don't see us using MBD for parts an not using it for assemblies so I think this is going to put the brakes on this effort.  We will just wait for PTC to deliver the rest of the tool.

     

    Thanks again.

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