Section 7: Tolerancing Tolerances are applied to the feature measurements in the Feature Detail screen. While some tolerances are independent of a reference frame, typically tolerances are applied after a valid reference frame has been established. Tolerances can be applied to measured and constructed features. Each feature type has a specific set of tolerances that can be applied. Tolerances can be applied to features interactively or as part of program editing and are included in part programs for playback later. Tolerance status is indicated by color in the Feature List, Part View, Feature Detail screen and in the Report screen. Tolerance failures are displayed in red. Tolerances can be applied to single features or to a group of like features. Nominal values for tolerances can be entered by the user or imported from DXF drawing files in CNC enabled systems. Tolerances can be applied on a feature to feature basis, or by using the place tolerancing system. Engineering drawings might indicate that all features reported to two significant digits will receive one tolerance value while other features reported to three significant digits will receive another. The M2 software supports the application of universal tolerance values according to these tolerance groupings. Supported Tolerances Tolerances supported by the M2 system are shown in the table below.
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