The remaining four design factors are concerned withthe squeegee. The fourth design factor is called Skew.When the squeegee traverses across a panel, it can do soin a manner that is perpendicular to the panel, or viarotation about a vertical axis at the center of the squeegee, slightly skewed to the panel. The experimental design limits for this factor are ÿ1 and 1 cm (X4). There are two adjustment screws located on the top and at both ends of a rail that holds the squeegee. These screws can be used to adjust the downward pressure of the squeegee as it impinges on the screen and panel. This fifth design factor is called the Squeegee Pressure with limits y1 turn (gauged)and +1 turn(X5). The sixth design factor is the angle thatthe squeegee makes with respect to the screen and panel.This factor is called the Squeegee Angle with limits of 63and 83(X6). The final and seventh factor is the speed ofthe squeegee as it travels over the screen and panel, whichis called the Squeegee Speed with limits of 100 and400 mm/sec(X7).