Limit Tolerancing
Creo Elements/Direct Drafting assumes that both upper and lower values are positive. If you require either tolerance to be negative, start the value with a negative sign (-).
Limit Tolerancing
To add a limit tolerance:
1. Press DIMENSION 1.
2. Pick Limit in Tolera.
3. Enter the upper limit tolerance value, or string.
4. Enter the lower limit tolerance value, or string.