[1] First, use a knife to flatten the square end of the chopsticks. Cut the iron screen window into a square about 10 cm wide, you can be particular about the cut, be sure to cut the grain of the window screen obliquely, and cut it along the diagonal of a wire, that is, the diagonal of this square is an iron wire, you can cut a few more at a time.
[2] Next, take an angular wooden board to do, you can also press directly on the edge of the table, fold the diagonal of the square in half, press out a seal, pick up the diagonal to be steady, always pay attention not to tie your hands, the other side is also folded in half, pinch the four sides tightly, leaving a certain gap, and then, at the apex of the cross line, cut 3 wires, and pinch the front end tightly. Adjust it, pinch the wire at the tip of the cut tightly, and then, cut it off with scissors, pinch the lower part of the fold, and compress it while pinching while adjusting it during the pinching process, and finally form a cone. Depending on the size of the bottle finish, the appropriate height can be adjusted to about 50 mm, and a similar film cartridge can be used as a standard to fold the four sides. As long as it is folded the same height. Pour the finished cone-shaped body into the mouth of the bottle, use a thing similar to a spinning top, press the wire tightly, and then press the excess wire on the outside on the mouth of the bottle, and then, take it out, and use scissors to cut off the excess wire, leaving a side about 1 cm wide.
[3] Generally, the inner circumference of the cap of the beverage bottle on our market has 3 sizes, 108 mm, 84 mm, 75 mm, and we use 108 mm cap to make it today. Measure the length of the copper wire with a ruler, cut it off with pliers, press it into a ring on the bottle mouth, and finally, adjust it with pliers to connect the two ends of the copper wire without connecting it too tightly. Put the ring on the cone, press the ring with the flat head of the chopsticks you have just sharpened, and wrap the excess wire edge around the copper ring. Be careful when pressing, don't prick your hands.
[4] Use a knife to cut a hole in the inside of the cap, leaving a little edge, as long as you can press the edge of the cone, if you don't have such a knife, you can also use a taper instead. Then, first find the opening of the ring, put the opening into the bottle cap, and then use the flat end of the chopsticks to fix the conical body in the bottle cap, and then, then use the round end of the chopsticks to adjust the size of the hole, we put the leftover broken bones into the bottle as bait, and finally, screw the bottle cap, and a cockroach exterminator is ready.
[5] When putting it, put a bracket in the back so that the mouth of the bottle touches the ground, so that cockroaches can climb in, if there is no bracket, it can also be replaced by something else, and put it in a place where cockroaches often haunt, so that the cockroach will crawl into the bottle when it smells and smells, and it will not climb out as long as it climbs in.
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