THE ABILITY OF A PRESS BRAKE TO PRODUCE ACCURATE BENDS OVER ITS ENTIRE WORKING LENGTH IS DEPENDENT UPON SEVERAL VARIABLES: THE ABILITY OF THE MACHINE TO COMPENSATE FOR RAM AND BED DEFLECTION; THE PRECISE SYNCHRONIZATION OF THE PRESS RAM (Y1-Y2); THE OVERALL MANUFACTURING TOLERANCES OF THE MACHINE; THE PRECISION OF THE TOOLING USED; THE UNIFORMITY OF THE MATERIAL BEING FORMED, AND THE LENGTH OF CANTILEVERED BED AREA (HORNS) OUTSIDE THE CENTERLINE OF THE SIDE FRAMES. THE FOCUS OF THIS PAPER IS TO ANALYZE THE DEFLECTION CHARACTERISTICS OF CONVENTIONAL PRESS BRAKES AND REVIEW THE DEFLECTION COMPENSATION SYSTEMS CURRENTLY AVAILABLE FOR COMMERCIAL APPLICATIONS.