how to add tap size in family table

[DDJCAD]

i would like to add tap size (metric) as a variable in fam. table (tap size and pitch varies) can i change tol type from one type to other symmetical to plusminus,and for holes change type of grade ie from H13 to H7 as a variable
Edited by: DDJCAD

 

[looslib]

No. I asked this question and that was the PTC answer.


What I did for multiple tapped hole sizes in a Ft was to add all of the sizes , then add them to the FT and turn the one on for the instance.

 

[Dell_Boy]

looslib you are way off the mark again with your replies.

Don't use the canned hole function to create a thread and hole as a single feature.

Drill your hole first by either using a hole or revolved cut as one feature, then add a cosmetic thread as a second feature. Pattern and Ref pattern as required. Create a variable called pitch and use that to drive the diameter of the drilled hole via

minor_diam = major_diam-pitch which is accurate enough for many metric threads.

and then add major_diam and pitch to the family table.

I have used this for years and all my hex nuts are created this way in a single family table.


While you can't change the tolerance type from a true visual symmetric tolerance to a plus minus, create the tolerance as a plus minus, add the tolerance values to the family table and for the symetric case make the values the same so the dimension will read + and - the same amount. Works for me.


Are the grades applied to a threaded or plain hole?



DB


Edited by: Dell_Boy