Often the output of machine vision results can be used in conjunction with an SPC system to adjust machine operating parameters. In one such system, a high accuracy measurement system is being used to measure the size of ceiling tiles to the thousandths of an inch. The system measures length, width and squareness and the results are sent to an SPC system. The SPC system will then recommended saw blade adjustments as dimensions start to drift. In another case, we used a camera to measure key aspects a foam cross-section. That data was then used manually as feedback to the extruding system.