at least one sensor and at least one rotating mechanism engaging the workpiece from the underside of the same the at least one sensor provides signaling to a motor and the at least one rotating mechanism to indicate when the workpiece has reached a point for pivoting application_number US 95339404 A description the present invention is directed to a corner turning assist device for a sewing machine advantageously the present invention provides a significantly less complex system as compared to the prior art fig1 u2013 3 illustrate a corner turning assist device 100 for a sewing machine according to an illustrative embodiment of the present invention the corner turning assist device 100 includes a corner pivot plate 102 situated in a table 106 and having a series of material edge sensors 108 110 and 112 the corner pivot plate 102 is just a pivot center placed at a specific location and may take the form of for example a lazy susan type plate a conical point or even a ball that is the corner pivot plate may be anything that is capable of being dropped down in a proper pivot point location and assists in the radial movement of the sewing material as compared to axially when sewing down a straight side this pivot of the material by corner pivot plate 102 will be passive not driven thus when the operator loads the material under the sewing machine presser foot 120 this pivot alongside its guard will also lift when the presser foot drops to clamp the material the pivot plate 102 will fall under its own weight with no actuator pressure skimming the surface of the material lightly as.