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Create an angular dimension more than 180 degrees in NX sketcher 1

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Lockdain

Mechanical
Jun 24, 2016
108
Hi All!

I need some help. This time i need to create an angular ordinate dimension in sketch, but each time i'm trying to create a dimension with a value higher than 180 degrees, dimension changes and becomes "not ordinate".
I create all the center points in sketch, built-in Hole Feature. Maybe it is better to use the Pattern Feature to respect these dimensions?

ordinate_2_exqc8e.png

ordinate_1_a4egzd.png


Thanks in advanced!

 
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In the sketcher, you're not creating dimension as much as you're creating constraints and parameters. I think you'll find that the sketcher constraint solver can only handle angular parameters of 180º or less. This is not an uncommon limitation when it comes to solving equations involving angles.

John R. Baker, P.E. (ret)
EX-Product 'Evangelist'
Irvine, CA
Siemens PLM:
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Hello Mr. Baker,

Thanks for your reply. This limitation looks reasonable.
I've asked this question because the customer has gave us the draft, which utilizes the ordinate angular dimensions. The customer asked me to send him the part, created based on the draft, in order to check whether everything is ok before we start the machining (unfortunately he don't have the model, only the draft). He has made a note, that some of expressions, connected to angular dimensions are not equal to the draft (because I recalculate them in the sketch due to sketch solver limitation). It sounds strange, but the customer want me to correct it, despite the fact that my part geometry is fully correct.

 
In drafting their is an option to make
a manual change to a dimension.
so if you have the correct dimension
simply write it manually.
 
@a984928
That's the whole point - the customer opens the model and checks whether the expressions contains values from his draft, he doesn't need the draft, created by me based on my model. Finally i used a weird workaround - I've created these holes using the Pattern Feature.

 
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