A beam director comprising; a first reflector mounted towards the center of a horizontal rotatable platform, the platform rotatable by an actuator, the beam director configured to receive a vertical beam from a beam source perpendicular to the ratable platform and the first reflector configured to rotate the beam as the platform rotates and to reflect the beam horizontally to a second reflector mounted on the rotatable platform; the second reflector configured to reflect the beam vertically towards a work surface so that when the beam is activated and the actuator rotates the platform, the vertical beam strikes the rotating first reflector rotating the beam as the platform rotates and reflects the beam to the second reflector which reflects the beam to the work surface; the beam then following a curve path relative to the work surface and trace out an arc on the work surface.
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