4 Replies Latest reply on May 26, 2017 6:35 AM by John Stoltzfus

Mates always fail when feature recognition is used

Brian Callaway May 25, 2017 6:55 PM

I've experienced this with many different parts imported from many different sources. For example, I've downloaded a number of STEP files from 80/20's online catalog of fittings. Each time, I convert these STEP files to Solidworks parts. I use the automatic feature recognition, which usually works. However, once that new part is incorporated into an assembly, the mates initially work just fine -- until I close and re-open the file. Then all of the mates fail at once. I have read somewhere that this may be due to the Surface/Face ID changing, but I have gone through and manually given each face a unique ID, and it still breaks.

I have also verified that my converted SolidWorks part files are fully defined.

Is anyone else experiencing this behavior with imported STEP files?

Re: Mates always fail when feature recognition is used

Alin Vargatu May 25, 2017 7:43 PM (in response to Brian Callaway)

Nice find!

Just curious, why do you need to perform feature recognition for vendor parts?
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- Re: Mates always fail when feature recognition is used
  
  Dan Pihlaja May 25, 2017 10:05 PM (in response to Alin Vargatu)
  
  Honestly, if I need history in some sort of vendor part, and I have the model....then I generally just remodel it. It saves time in the long run. Feature recognition has never worked as well as I wanted it to. Mainly because some of the parts that I get have too complex of shapes.
  
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Re: Mates always fail when feature recognition is used

Santhosh Gowda May 26, 2017 4:20 AM (in response to Brian Callaway)

Hai Brian

For me also facing the same issue, I posted the issue 15 days ago in solidworks forum, Still I couldn't get the solution but I got some suggestions from solidworks users

you can find the details in below link

Assembly mate error when use the feature recognigation parts
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Re: Mates always fail when feature recognition is used

John Stoltzfus May 26, 2017 6:35 AM (in response to Brian Callaway)

That is the reason Dan Pihlaja among a lot of other SW users remodel the components or modify the components so the work. Most models are good, however there are a few that don't come in right in SW and the faces aren't parallel or perpendicular etc, those are a huge pain. I'm with Dan on this, remodel and then "You" have control.
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