creo5 Drawing Setup option documentation for: dim_tol_trail_zero_max_places 
dim_tol_trail_zero_max_places
Sets the maximum number of decimal places for dimension tolerances when trailing zeros are used to attain the maximum number of decimal places defined by the
default_dec_places configuration option.
Default and Available Settings:
same_as_dim_tol
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This Detail option does not affect angular dimensions displayed in the degree/minute/second format.
This Detail option does not affect the decimal places if the value
specified for the lead_trail_zeros Detail option prevents trailing zeros from being displayed.
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Consider the following example:
1. Specify the value 6 for the default_dec_places configuration option.
2. Retain the default value for dim_tol_trail_zero_max_places.
3. Specify the value both for lead_trail_zeros.
4. Create several dimensions with plus-minus tolerances.
Dimension tolerances are displayed as shown in the following figure:
Change the value of dim_tol_trail_zero_max_places to 3 to display the dimension tolerances as
follows:
In the previous figure, tolerances with significant digits beyond 3 decimal places are displayed to the last significant digit. Subsequent trailing zeros
are suppressed. Such values have been enclosed in blue circles. All trailing zeros are suppressed for tolerance values that have trailing zeros extending beyond 3 decimal places. Such values have
been enclosed in red circles.
