The Right Angle Adapter (RAA) is an attachment that aims the axis of the PSM at right angles to the body. This is helpful when there is not enough room in a setup for the full length of the PSM body. In addition, when used with the tip/tilt mount (TTM) and no objective the PSM is an autocollimator with a sensitive angular adjustment. When used with an objective, the RAA and TTM easily adapt the PSM to a CMM as in the picture below.
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