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joe_c14-Alexandrite
14-Alexandrite
December 4, 2025
Solved

Cant add string in family table

  • December 4, 2025
  • 3 replies
  • 1136 views

Hello

 

i am struggling to add the new dim Parameter in another instance in the family table. Apparently, it doesnt like parameter names.  i thought i could rename the original dim (A, B,..so on), add an offset, create new dim as a parameter,

 

error "you have entered an invalid text string or a numeric value"

 

apparently, it needs to be a number. what will be another workaround?  Ultimately, i want use these new parameter (A1, B1, C1, D_1, E1, F1. G1, H1) in a drawing table. 

 

It seems that i have to convert the string into a number?

family-table.png

 

relation.png

Best answer by MartinHanak

Hi,

you have to define parameters and relations.

MartinHanak_0-1764920653554.png

Then you have to add another "parameter" column into family table and verify instances.

MartinHanak_1-1764920719252.png

 

3 replies

S
SikiF10-Marble
10-Marble
December 5, 2025

Hi,

What you are trying to achieve is not possible due to invalid value types.

 

Explanation:

For dimension d34 (A), the value type is real (this applies to the entire column), and for A1 it is a string type (A1 in this case is not treated as a parameter used in the relation, but as an actual value).

These two types are not compatible with each other.

 

As the dialog says, you must use a value of the same type!

M
MartinHanak24-Ruby IIIAnswer
24-Ruby III
December 5, 2025

Hi,

you have to define parameters and relations.

MartinHanak_0-1764920653554.png

Then you have to add another "parameter" column into family table and verify instances.

MartinHanak_1-1764920719252.png

 

    J
    joe_c14-AlexandriteAuthor
    14-Alexandrite
    December 5, 2025

    thanks Martin

    But i already did that but A1 is assigned to the 1st instance instead of the second.  I want to keep the 1st instance at a zero offset (which is the original A, B,,, dimensions). The second instance at the 0.006 offset with the new A1, B1 the third instance at a 0.013 offset and so on..... Right now, i am typing the calculated new dimension in the table instead of the using the relation based dimension

     

    i also want to add the new parameters in a drawing table so the threads can be machined at the different offsets from the shoulder (left or right)

     

    family-table-3.png

    M
    MartinHanak24-Ruby III
    24-Ruby III
    December 5, 2025

    Hi,

    please pack you model into zip file and upload this zip file. I need to work with your model to understand you "situation".

     

    Note: If every instance has its own OFFSET value then you have to put it into appropriate cell. See below.

    MartinHanak_0-1764939822935.png

     

    K
    KenFarley21-Topaz II
    21-Topaz II
    December 5, 2025

    I've done things like what I presume you are attempting. An approach I think would work well is as follows:
    (1) Define a set of parameters that will contain the "nominal" values of a particular instance.

         Anom, Bnom, Cnom,...,Hnom, etc.

    (2) Define a parameter for your offset

    (3) Define a set of relations that use the nominal values and the offset to set the pertinent dimensions

         A = Anom - 2 * offset

         B = Bnom - 2 * offset

         ...

    (4) In your family table, for each instance, specify the nominal values and the offset.

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