A noncontact optical three-dimensional measuring device that includes a first projector, a first camera, and a second camera; a processor electrically coupled to the first projector, the first camera and the second camera; and computer readable media which, when executed by the processor, causes the first digital signal to be collected at a first time and the second digital signal to be collected at a second time different than the first time and determines three-dimensional coordinates of a first point on the surface based at least in part on the first signal and the first distance and determines three-dimensional coordinates of a second point on the surface based at least in part on the second signal.