When all three gimbals are lined up ( in the same plane ) , the system can only move in two dimensions from this configuration , not three -- it has rank 2 at such a singular point -- .
Is in gimbal lock .
When all three gimbals are lined up ( in the same plane ) , the system can only move in two dimensions from this configuration , not three -- it has rank 2 at such a singular point -- and is in gimbal lock .