NX Dimensions not Parametising Correctly

[cswain54]

Dear eng-tips,

I have been trying to create parameters from sketches. (Drawing lines and adding a rapid dimension to define lengths.

Regardless of whether I use the default pXXX or rename the parameter (e.g L1), NX is not generating the formulae correctly.

If I open Tools>Expressions and set the listed expressions filter to 'All' my values appear in the list. However, if I view these parameters in Spreadsheet Edit it is clear to see that no formula is linked! (THE CELLS IN COLOUMN B ARE NOT GREEN & CANNOT BE SELECTED FOR USE IN OTHER PARAMETERS)

Could someone please tell me if I there is a parameter setting somewhere that I have turned off?


Kind Regards,

Chris Swain

 

[Xwheelguy]

As always, it may help to include the NX version in which you're experiencing this.....

Tim Flater
NX Designer
NX 9.0.3.4 Win7 Enterprise x64 SP1
Intel Core i7 2.5GHz 16GB RAM
4GB NVIDIA Quadro K3100M

 

[cswain54]

No problem,

Its NX 9.0.3.4 MP11

The same version that you are using Tim!

 

[cowski]

Regardless of whether I use the default pXXX or rename the parameter (e.g L1), NX is not generating the formulae correctly.

Can you post an example of a formula that you are trying to create? What were the exact steps you used in your attempt to create the formula?
Did the same workflow give different results in a previous version of NX?

www.nxjournaling.com

 

[cswain54]

Cheers for looking into this guys!
Turns out that the problem was in the fact that I had converted from mm to inches in the original parameter.
If there is a formula within the original parameter then the parameter does not generate correctly.
(E.g. 0.5/25.4) equals 0.5mm in inches.
I fixed the problem by changing the sketch units to mm instead.
This can be done in Analysis> Units Custom> Unit Manager

Regards,

Chris Swain

 

[cowski]

Alternatively, you could enter "0.5mm" as the dimension formula and NX will interpret the length entered in millimeters and convert it to the length units of the expression. This is handy if the majority of your entries are in one unit system, but you want to enter a few in an alternate unit system.

www.nxjournaling.com