Cut the round bottle, adjust the distance between the three white wheels according to the diameter of the bottle, loosen the screw and move it outwards, put the cutter wheel and the bottle at about 50 degrees, and tighten the screw.To cut the square bottle, loosen the screws according to the width of the bottle, adjust the fit between the two vertical wheels and the bottle, make the cutter wheel and the bottle about 50 degrees, and tighten the screws. Loosen the butterfly screw and adjust the scale according to the length of the bottle to be cut. Tighten the butterfly screw. When cutting uniform force, about 5KG force, must continue to complete the cutting action, not disconnected or backward, do not need to repeat the cutting. Put 2 rubber traps on the bottle, about 5mm away from the cutting line, and pour them alternately with hot and cold water to crack automatically. Sand paper flat on the table, bottle mouth parallel rotation grinding edges and corners, sand paper has two kinds, first thick after fine.