Abstract: A motion generator including a frame, a mount movable with respect to the frame, and an emitting device having a beam outlet configured to emit an electromagnetic beam therefrom, and where the emitting device is coupled to and movable together with the mount relative to the frame. The motion generator is also operable in a first mode in which the beam outlet travels in a spiral pattern that alternatingly increases and decreases in radius, where for any given point in the spiral pattern the beam outlet produces a beam speed, a beam direction, an instantaneous beam radius, and a beam radius rate of change, and where the beam speed, the beam direction, and the beam radius rate of change may be adjusted independently.

Abstract: A motion generator including a frame, a mount movable with respect to the frame, and an emitting device having a beam outlet configured to emit an electromagnetic beam therefrom, and where the emitting device is coupled to and movable together with the mount relative to the frame. The motion generator is also operable in a first mode in which the beam outlet travels in a spiral pattern that alternatingly increases and decreases in radius, where for any given point in the spiral pattern the beam outlet produces a beam speed, a beam direction, an instantaneous beam radius, and a beam radius rate of change, and where the beam speed, the beam direction, and the beam radius rate of change may be adjusted independently.