A positioning system includes a body, a flexible band disposed at least partially in the body, and a plurality of rollers in contact with the flexible band, wherein at least one of the rollers is constrained from translation both axially and radially.

A method for preparing a deck for a process is disclosed. The deck can be prepared with any necessary components, and then an imaging device can capture an image of the deck. This image can be compared with a reference image and any differences identified. The differences can be indicated in the image and shown to an operator, such that the operator can correct any errors associated with the differences.