Abstract: An adjustable self-aligning locator for supporting a plurality of parts in their proper relative position for assembly and/or clamping to a machine bed and the like. The locator includes a support member having a base leg with a cam locking device for engagement with a T-slot on the machine bed and an upright leg with a side extension portion having an arcuate groove therein. An angle member having a matching arcuate shaped protuberance at one end in engagement with the arcuate groove in the upright leg extension provides an adjustable angle working face for contact with the workpiece.