Coordinate Systems You can define a coordinate system for a part or assembly. Coordinate systems are useful:With the Measure and Mass Properties tools When exporting SOLIDWORKS documents to IGES, STL, ACIS, STEP, Parasolid, VRML, and VDA When applying assembly mates Contents Creating a Coordinate System Creating a Coordinate System With Insufficient Entities Hiding and Showing Coordinate Systems You can hide or show selected coordinate systems or all coordinate systems at once. Coordinate System PropertyManager The Coordinate System PropertyManager appears when you add a new coordinate system to a part or assembly or edit an existing coordinate system. Parent topicReference Geometry Planes Axes Center of Mass Points Conversion of Sketch Lines to Construction Geometry Reference Points Updating Reference Geometry in Document Templates Grid System Bounding Box Mating to Origins and Coordinate Systems Flex PropertyManager Table Driven Patterns Measure Tool Mass Properties and Section Properties