A system for transporting substrates and precisely alignment the substrates to shadow masks. The system decouples the functions of transporting the substrates, vertically aligning the substrates, and horizontally aligning the substrates. The transport system includes a carriage upon which plurality of pedestals are loosely positioned, each of the pedestals includes a base having vertical alignment wheels to place the substrate in precise vertical alignment. Two sidebars are configured to freely slide on the base. Each of the sidebars includes a set of horizontal alignment wheels that precisely align the substrate in the horizontal direction. Substrate support claws are attached to the sidebars in precise alignment to the vertical alignment wheels and the horizontal alignment wheels.