Abstract: A method and apparatus for cleaning debris, such as lint-like residue, from the bristle blocks of an automatic fabric cutting machine cutting bed, utilizing a linear motion device connected to a head by motion-amplifying linkages in order to amplify the acceleration produced by the motion device and thereby accelerate a slat of bristle blocks toward a grate. When the slat contacts the grate it is abruptly decelerated, which causes the debris to travel out from between the bristles. The grate is indexed between cycles of the head so that different portions of the slat strike the grate each cycle.