Changing GTOL secondary unit rounding

Forum|Forum|2 years ago
August 7, 2023
2 replies
2906 views

What I want to display: 0.1 [.004]

I have gtol_secondary_value_precision set to round, dual_dimensioning set to metric[imperial], and gtols set to ANSI standards.

The problem is that no matter what I try, the secondary unit won't round up. If it is set to 0.100 it shows [0.0039] but when I put 0.10 it shows [0.003] instead of rounding up.

Best answer by BenLoosli

I don't think it will possible. It is not just a PTC coding thing, put it is in the standards that define dimensioning. You cannot have a looser tolerance for the secondary units than you have for the primary units. Other CAD software has this same 'restriction' on dual dimensioning.

Chris3

21-Topaz I

Creo doesn't round the secondary units. This is done intentionally to avoid the secondary (reference) annotation from having more tolerance than the primary (driving) annotation.

C

ChampiCo

Author

7-Bedrock

I recognize that is why Creo doesn't do it by default, however I am asking if it is possible to make it round the secondary units anyways.

In this application a one-thousandths difference in inches is important, where 0.004 is much more acceptable than 0.003. I recognize that the secondary units are just for reference, but in America some smaller manufacturers will only look at the imperial units because it is what they are familiar with.

B

BenLoosli

Answer

23-Emerald III

I don't think it will possible. It is not just a PTC coding thing, put it is in the standards that define dimensioning. You cannot have a looser tolerance for the secondary units than you have for the primary units. Other CAD software has this same 'restriction' on dual dimensioning.