The Crashable Surface setting for a Tool Axis is used to determine which side of the machine, positive or negative, an axis resides. It is a Y-Offset that defines the surface that will crash into the Opposing Axis, if present. In order to be used for its intended pupose, it is expected to be greater than or less than all of the Tool or Location Y-Offsets .

A test and error message was added to make sure the Crashable Surface setting for an Opposing Axis meets these requirements. The test is a permissive for entering the run mode.