Floor-standing equipment and methods that employ them use nylon netting to grate trim off the seedless flowers of female cannabis plants. The netting is formed into large cylindrical drum into which about five pounds of dried seedless flowers of female cannabis plants are loaded through a door flap in the netting. An electric motor or handcrank causes the load to tumble over and over a horizontal axle for 3-5 minutes at about 35-RPM. The trim drops through the netting down through a funnel bag into a plastic basin on the floor. The trimmed seedless flowers are then dropped out separately through the door flap in the netting and through the funnel bag into a second plastic basin on the floor.