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sundardannana1-Visitor
1-Visitor
December 18, 2017
Question

How to Control GD&T decimal places with duel dimensions?

  • December 18, 2017
  • 3 replies
  • 8342 views

I have a  to give a position tolerance of  .003 [0.07]                                                       (Inch [mm] )

When I am giving .003 as primary the secondary units showing 0.08

The actual conversion of  .003 inches is 0.0762 mm. so it is rounding up.

so then I have entered .0027 so that it could be round up to 3 decimal places and it will show 0.07

but it is showing  .0027[0.068]

how can I control this decimal places in GD&T

Regards,

Sundar Dannana,

Mechanical engineer.

 

3 replies

T
TomD.inPDX17-Peridot
17-Peridot
December 18, 2017

Dual_digits_diff in your detail config.

 

dual_digits_diff.PNG

 

 

T
23-Emerald IV
TomU23-Emerald IV
23-Emerald IV
December 18, 2017

This will change ALL of them.  I don't think there is a way to change just one GTOL's digit difference.

T
23-Emerald IV
TomU23-Emerald IV
23-Emerald IV
December 18, 2017

We run into this all the time.  The best you can do is increase the number of decimal places displayed.

 

In my opinion, Creo should really be rounding down the dual dimension value for GTOL's.  Rounding up often causes the secondary value to exceed the specified limit.

D
dschenken1-Visitor
1-Visitor
December 18, 2017

The real answer is to stop using dual dimensions. Between truncation and rounding no one is happy.

    S
    sundardannana1-VisitorAuthor
    1-Visitor
    December 19, 2017

     

    Hello, @dschenkenRemoving secondary units solve the problem but it is mandatory to show the duel dimensions in my case.

     

    thanks for your reply.

     

    FYI @TomD.inPDX @TomU

    G
    gopi1-Visitor
    1-Visitor
    January 10, 2019

    frame table how to  1.0 value in gd&t. 

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