Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

Register Log in

Using Expressions to drive Thread sizes 2

Status
Not open for further replies.
BSM1487

BSM1487

Mechanical
May 12, 2011
14
0
0
US
I want to set up an If_Then_Else statement in NX6.0 that drives symbolic thread callouts. The input would the the tap-drill diameter. Basically, I need to know if it is even possible to control the callouts via expressions. And if so, what would the "then" argument be?

Thanks.
 
Replies continue below

Recommended for you

Sort by date Sort by votes
You might have better results if you utilize "suppress feature by expression" with this.
In other words all the thread sizes that you have the potential of using would be present in the model but only one of them would be toggled "on".
 
Upvote 0 Downvote
If you create the threaded-holes using the NX Hole function, then yes. You can go to the expression system and edit the string expression which calls out the thread size, such as editing the expression value from something like 'M10 x 1.5' to 'M12 x 2.5' (as long as it's a valid size in the thread table), it will update the threaded-hole feature.

John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
UG/NX Museum:
To an Engineer, the glass is twice as big as it needs to be.
 
Upvote 0 Downvote
I did not realize that it was possible to do that - very cool!
Of the four expressions listed for the thread the second one is the only one that will need to be changed.
 
Upvote 0 Downvote
John, does the call-out expression generate itself or do I have to create it? I've looked for it in the expression editor(filtered by string), but nothing shows I up. I've noticed the thread parameters dialog shows the call-out with the brown background which normally shows up when the value is tied to an expression.

 
Upvote 0 Downvote
This capability is ONLY available when creating Threaded-Holes using the...

Insert -> Design Feature -> Hole...

...feature function.

This is NOT relevant when using the separate...

Insert -> Design Feature -> Thread...

...approach creating a threaded hole from an existing simple hole.

John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
UG/NX Museum:
To an Engineer, the glass is twice as big as it needs to be.
 
Upvote 0 Downvote
Status
Not open for further replies.

Similar threads

GBOLD
  • Locked
  • Question
INTERPART EXPRESSIONS
Replies
2
Views
13
GBOLD
GBOLD
Ram K
  • Question
Thread callout in Drawing
Replies
1
Views
26
Toost
Toost
Atharva_Mechanical
  • Locked
  • Question
Creating wire fencing using NX 2
Replies
7
Views
23
Atharva_Mechanical
Atharva_Mechanical
multicaduser
  • Locked
  • Question
compare number to list of numbers in expressions
Replies
11
Views
28
JohnRBaker
JohnRBaker
tgallifet
  • Locked
  • Question
Moving from Creo - drive component from expression in assembly 1
Replies
4
Views
13
looslib
looslib
Back
Top