The present invention features a method wherein a component in a
multi-head component placement machine is rejected during the placement
cycle. A component is imaged and the image processed using an automated
vision system. The image processing determines whether the component is
placeable based upon a comparison of the component image to preprogrammed
mechanical parameters for the component. A non-placeable component is
rejected into a reject station, which is contiguous with the head.
Because a component can be rejected during the placement cycle, there is
no slowdown of the placement machine cycle rate.