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Non-rational relations cause yellow regen status?

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Gurus,

 

A couple of times recently, I think I've had an issue whereby a relation that produces a non-rational value and assigns it to a dimension causes the regen status to remain yellow - presumably because the dimension precision immediately changes the dimension value to be unequal to the result of the relation.

 

To give a specific example: I'm getting the error "Some relations are no longer satisfied in 00929329 for SD5."

 

The relation is

     sd5 = 90/nom_teeth

where nom_teeth = 21, therefore

     sd5 = 4.2857142857142857142857142857143.

 

My guess is that the the value of sd5 is then rounded to 4.286, and

     4.286 != 4.2857142857142857142857142857143

therefore the relation is "no longer satisfied".

 

How do I stop it worrying about this, and get a green regen status?

 

WF5 / CEP / Creo 0 on this particular project.

 

Thanks!


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