A system for projecting an image of a target is provided. In one embodiment, the system comprises a rail having a longitudinal axis; a target carrier coupled to the rail such that the target carrier can translate along the longitudinal axis of the rail; a motor and motion controller coupled to the target carrier wherein the motor is configured to cause the target carrier to translate along the longitudinal axis of the rail; a projector carrier coupled to the rail and held in fixed relational position to the target carrier; and a projector affixed to the projector carrier and oriented to point back towards the target carrier. In some embodiments, one or more cameras may also be added to the target carrier, projector carrier, or both.