The Ansys DesignModeler application's geometry engine has a one cubic kilometer size box limit, centered about the world origin. This means that all geometry must be reside within 500 meters of the world origin.

Enabled  —  When large model support is enabled, the box limit changes to 1000 cubic kilometers. Any geometry created that extends beyond this size box may generate an error. For micrometers, the size box limit is one cubic meter, or 500 millimeters in any direction from the world origin.

Disabled  —  When large model support is disabled, the precision of the Ansys DesignModeler application is 10e^-8 meters. That is, points are not considered coincident unless they are less than 10e^-8 meter units apart. When large model support is enabled, the precision of the Ansys DesignModeler application is loosened to 10e^-5 meters. This could result in merging points inadvertently.

Other Boolean Operations: