Proximity Issues: Hole Proximity Issues

The recommended minimum distance between a hole and another feature is one of the following (depending on the current process):

• Sand Casting: the first Minimum Wall Thickness value that appears in the lookup table tblWallThickness for Sand Casting and the current material type.

• Gravity Die Casting: the first Minimum Wall Thickness value that appears in the lookup table tblWallThickness for Gravity Die Casting and the current material type.

• High Pressure Die Casting: this value is interpolated from values in the lookup table tblHighPressureDieCastingHoleProximity, and is bounded above and below the larest and smallest distances in the table. The lookup is keyed by the diameter of the hole. For the minimum recommended distance between two holes, the lookup is keyed by the diameter of the larger-diameter hole.