Opposing Axes are assumed to be on opposite, Positive or Negative, sides of the machine. All of the software for resolving Opposing Axis conflicts is written with this assumption. The results of this assumption not being true are unpredicctable.

The Crashable Surface setting on an Opposing Axis is used to identify which axis is on which side of the center line of the machine. A new test and error message was added to check for settings that result in both of the Opposing Axes being configured for the same side.