We are all about the Chart: Press Brake - Hole Punch - Metric - Band Saw - Shear - Drill Charts

  Press Brake Angle Variations-  pdf printable chart
This chart shows the angle variations for different material thicknesses.  As the press brake v-die width increases , the change in ram position or ram repeatibility becomes less important as it takes more distance to change one degree.  Notice, the chart indicates the part is overbent when the included angle is less than ninty degrees.    
 Press Brake Bend Variations  - pdf pritnable chart