Aligning Physics Constraints
If you are using the Physics Constraint's Linear or Angular limits, you will be able to see their alignment:
By then translating and rotating the Physics Constraint, you can align the limits to give the desired results. In the most basic of terms, when a Physics Constraint is limited,
you can see a yellow line suspended in a green arc or cone structure. The line will be "constrained" within this arc or cone.
For more information on Physics Constraints and their properties, see the Physics Constraints User Guide.