DimXpert Contents Creating Basic Size Dimensions You can create basic size dimensions manually. General Block Tolerance You can include a default tolerance for dimensions when insignificant decimal places are not used to determine tolerance, such as when the unit of measure is metric. Multiple Edge Selection You can create dimensions between two planes by selecting two edges when the corresponding planes are parallel. Use of Reference Geometry with DimXpert Dimensions You can create DimXpert dimensions using reference planes, axes, points, and center of mass symbols. Using Datums in Auto Dimension Schemes The DimXpert Auto Dimension Scheme tool lets you select existing datums for the reference features. Using Polar Dimension Schemes for Geometrically Toleranced Parts The DimXpert Auto Dimension Scheme tool supports polar dimensioning schemes.