Rebuilding stuck in infinite loop

Discussion created by Joe Rochinski on Jan 10, 2008
Latest reply on Jan 10, 2008 by Anna Wood

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I'm working on a rather complicated assembly with a lot of features defined in context of other parts, including a couple of weldments. In order to produce 2D drawings for these weldments, i've used the save bodies command to save the individual weldment pieces in their own part files to be imported into the drawings. I've also utilized the as welded/as machined derived configurations on each of these parts. Long story short, I've got a lot of files that are VERY interdependant on one another.

Every once in a while when I rebuild the assembly, the program will get stuck in a loop where it repeatedly rebuilds the same features over and over. I've seen it eventually work to a solution after several minutes before, but most of the time this goes on for longer than I have the patience for and I have to kill the program in task manager.

I'm wondering 1) is this a common issue? If so, 2) what are some good practices to use to avoid this situation besides avoiding in-context parts?

Thanks,

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Devon Sowell Jan 10, 2008 7:43 PM

Hello Joe-

In my experience, the number one cause of the "Rebuild Loop" is "Circular External References".

RE:"I'm wondering 1) is this a common issue? If so, 2) what are some good practices to use to avoid this situation besides avoiding in-context parts?"

You seem to already know the answer yourself. So, go back and double check all your External References, tedious I know.

Good Luck.

Maybe someone else has another suggestion.

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Anna Wood @ Devon Sowell on Jan 10, 2008 10:41 PM

I agree with Devon..... Sounds like you have some circular references. This can definately happen when creating incontext relations and you lose track of how the relations need to solve and there dependencies.

These can be a real bear to find, but it is what you are going to need to do to get you out of your rebuild loop. What will help is if you can remember when this started happening (the long rebuild) and what you were doing at that time. This should give you a clue where to look.

Since you are in SW2008 there is a new feature under Tools called Assembly Xpert. I am pretty sure this will flag the areas where you have circular references.

Also there is a software package called SolidMap http://www.solidmap.com/ that will help you visualize your relationships between parts. They have a 30 day free trial that you can use to help you with your issue and decide if the software is a good tool to add to your SW toolkit.

Cheers,

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2 Replies

Devon Sowell Jan 10, 2008 7:43 PM
Hello Joe-

In my experience, the number one cause of the "Rebuild Loop" is "Circular External References".

RE:"I'm wondering 1) is this a common issue? If so, 2) what are some good practices to use to avoid this situation besides avoiding in-context parts?"

You seem to already know the answer yourself. So, go back and double check all your External References, tedious I know.

Good Luck.

Maybe someone else has another suggestion.
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- Anna Wood @ Devon Sowell on Jan 10, 2008 10:41 PM
  I agree with Devon..... Sounds like you have some circular references. This can definately happen when creating incontext relations and you lose track of how the relations need to solve and there dependencies.
  
  These can be a real bear to find, but it is what you are going to need to do to get you out of your rebuild loop. What will help is if you can remember when this started happening (the long rebuild) and what you were doing at that time. This should give you a clue where to look.
  
  Since you are in SW2008 there is a new feature under Tools called Assembly Xpert. I am pretty sure this will flag the areas where you have circular references.
  
  Also there is a software package called SolidMap http://www.solidmap.com/ that will help you visualize your relationships between parts. They have a 30 day free trial that you can use to help you with your issue and decide if the software is a good tool to add to your SW toolkit.
  
  Cheers,
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Rebuilding stuck in infinite loop

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