One of the authors presented the option of how do it yourself You can make a spider with luminous eyes. They begin to glow at the slightest vibration or blow of the wind. With the help of this spider you can play friends, and indeed it will be a great addition to the interior.
Such toys have recently become quite popular. And if you do them yourself, you can also get some experience in the field of electronics.
Materials and tools for creating a spider:
- hot glue (in the form of sticks);
- thermal gun;
- saw for metal;
- nippers;
- measuring tape or ruler;
- nippers;
- scissors;
- marker;
- guitar string;
- adhesive tape;
- one flat round battery;
- LEDs (2 pieces, color and size can be selected);
- a copper tube with a diameter of 0.15 mm;
- small brushes;
- protective glasses.
Manufacturing process:
Step one. Preparation of material for procurement
First you need to take a guitar string and cut a piece of 31 cm long from it. At the same time, you need to measure the string so that there is a small ball on the other end.
After that, you need to take a copper tube, here you need to cut a piece of 3.5 cm. Dremel with the appropriate nozzle is best suited for such work. The most important thing when working is not to pinch the edge of the tube, as you will need to insert a string into it. In this regard, wire cutters cannot be used for such work. During the cutting process, it is imperative to observe safety precautions by wearing safety glasses, otherwise there is a high probability of copper chips getting into the eyes.
At the final stage, the edges of the duct must be carefully cleaned to remove burrs.
Step Two Create an antenna
First you need to insert the string into the tube. The tube must be put on so that it is clearly in the middle of the string. Next, you need to take the nippers and bend the structure so that the letter "V" is formed. As a result, an angle of about 45 degrees should be formed. Then you need to indent a few centimeters and bend the ends of the tube up.
Step Three Cases for spider eyes
Two eyes are used as eyes.Of course, it is most promising to use red or blue LEDs.
Looking at the LED, you can see that one of its ends is longer, this contact is called the anode, it needs to be bent 90 degrees in the opposite direction from the cathode. Next, you need to take the pliers and twist the ends of the cathodes, all you need to do 3-4 turns. As for the anodes, loops should be made at their ends.
Step Four Assembly e parts
As the basis for mounting the diodes is a flat battery. To mount the LEDs, you must use tape. They are attached by cathodes to the negative terminal of the battery.
You need to mount the antenna on the side of the battery that has a positive pole. As a result, when the string touches the anodes, the LEDs should light up. If this is not observed, then the polarity is most likely violated.
Step Five Installing the electronic part on a spider
As the "body and paws" of the spider, brush tubes are used. They should be cut as indicated in the photo. Next, you need to take a gun and drip hot glue into the center of the paws, subsequently a battery with antenna and LEDs is attached here. Now it remains only to bend the spider paws.
Step Six Finalization and tuning homemade
The loops at the ends of the anodes need to be gently bent and then the guitar strings inserted. After this, the loops must be bent back. Antennas must be configured so that they close the contact at the slightest touch, but do not close the circuit constantly. To make the "mustache" more sensitive, you need to stick pieces of adhesive tape on their ends.
That's all, the homemade product is ready. Now the spider's eyes will light up at the slightest breath of wind or vibration. Such homemade products will be appreciated not only by children, but also by adults.