Hot. If I may say so, even too much. That is why you can think about how to make a fan. You will say that it can be purchased at the store. But, firstly, their cost increases significantly. Secondly, they are quickly sold out and it is not always possible to find what you need on store shelves. Therefore, several practical advice about how to assemble a fan. After all, it is quite possible to arrange it even at home from available materials. Here are a couple of options.
How to make a fan based on an old cooler. If you have an old one, you can take it from there. You can also borrow a switch there. More to do homemade fan, you will need some kind of battery holder. There are many of these, you can take it from some broken toy or something else in the same spirit. Of course, you will also need several batteries themselves. All that remains is to connect all these components together, and a simple fan will be ready. If you don’t want to bother with the holder, you can use a regular USB port to supply power. The stand can be made from anything. It all depends specifically on your own imagination and what you have at hand.
You can, for example, make a stand from ordinary rigid wire attached to something. It is not so important what materials will be used, but how stable the entire structure will be.
Another option on how to make a fan may be useful for enthusiasts. Computer disks are an excellent tool for making. What else is needed? A motor from a simple toy, a cork left over from champagne, some kind of handy switch and several batteries. We take the disk, and then make as many cuts as we need for the blades. It is necessary to leave about a centimeter to the inner edge. Then turn each blade slightly at an angle. It bends much better if the disk is heated, for example, over gas. Then you will need to insert a champagne cork into its center. If you make a small puncture in its center, for example, with an awl, you can easily attach the entire structure to some kind of pin. You will need to make a leg - absolutely any cylinder-shaped object that can accommodate batteries and wires can play its role.
You will also need to design a base for the entire unit - it can also be anything, the main thing is that it is stable and can support the structure. All that remains is to add a few additional tips- when cutting out the blades, you need to make sure that each of them is approximately 45 degrees - you will end up with about 8 pieces. The plug inserted into the center of the disk will need to be secured with glue. In any case, the process should not cause you any difficulties.
If you've been thinking about how to make a fan, you now probably understand that it's very simple. Each of the proposed models is extremely easy to manufacture, and you will not need much time to create it. You don’t need any special things, the above is quite enough. These fans are very convenient and compact. You can put it on your desktop. Or, if there is such a desire, take it with you to the garage or country house, where these devices will serve as cooling means. It is difficult to argue with the fact that they have tangible dignity - after all, these, by and large, very useful things are collected from various rubbish.
As you can see, it is quite possible to make a fan yourself, from scrap materials, without bothering with going to the store and looking for a unit that suits you at an affordable price. Everything is much simpler.
Cool down, who can!
The summer heat can get to anyone. Especially in combination with dead calm. When it seems like everything around you is moving at the pace of a slow motion movie, and you can already drink the air rather than breathe it. Immediate cooling required! But no wind is expected, nor are there slaves with fans, as in oriental films. And if there is no opportunity to buy a motor with a propeller or the funds for it, there is nothing left but to make a fan with my own hands. Don't bend over from the heat, really! And the ubiquitous computer parts will help us in this noble cause.
If there is one cooler
This fan replacement can be easily connected to the USB port on your computer using a piece of cable with the appropriate connector. On both devices you can cut all the wires except red and black. They must be connected to each other (soldered or twisted) - of course, the same colors. All that remains is to insert the USB connector into the port - and... not be too happy. Because it is possible to make a fan this way, but if the cooler is more powerful than 5 V, it will blow much slower.
If there are several coolers
It is optimal if the coolers same sizes, and their number is a multiple of two. Let's say four. Follow the sequence of how to assemble a fan of this kind and note the time. We connect the “magnificent four” together with superglue (10 minutes). We connect them in parallel to the mobile phone charger (10 minutes). The structure is placed edge-on on the table and powered from the network (10 seconds). If the charging is designed for 5 V, and the coolers are 120 mm, a gentle breeze will blow over you. If it’s 12 V, the powerful flow will simply blow the homemade fan off the table! Unless, of course, it is properly secured. And if you are not afraid of catching a cold, because there will be a major draft. An even more powerful unit is obtained from fans freed from old computer power supplies. They can be carried in a regular bag, or they can be installed directly in the window opening instead of an air conditioner.
If there are no coolers
Don't tell me you don't have two unnecessary CDs or DVDs! However, to solve the problem of how to make a fan, you will need a plastic or cardboard tube, a plug from wine bottle, a motor from a children's toy and a cable for connecting it. One disk needs to be marked into equal eight parts with a pencil or needle. Then cut it exactly according to the markings, not reaching a little before the unpainted middle ring. The following operation must be done carefully. You need to heat the base of each fan blade in order and bend it in the desired direction at a small angle. Do not overheat the disk, otherwise it will shrink, the center of gravity will be disrupted, and the fan will vibrate unpleasantly during operation. A hole is punched exactly in the center of the plug for the electric motor shaft; it itself is connected to the blades. The motor is glued to the tube, and the tube is glued to the second disk (base). The blades are put on the motor. It is connected to a power source via a cable. Here's how to make a fan not only for yourself, but for anyone who needs some coolness in the middle of the heat!
Summer has arrived, which means heat, heat and an eternal lack of coolness. But this problem can be fixed, and quite easily. You only need a few details and a little free time to make your life easier with your own hands, to fill it with the light coolness that you will certainly get by making USB fan Houses. Of course, you can go and buy a fan in a store, but how nice it will be to sit next to the same computer, and a light breeze from the USB fan you created will blow on you. And a thing created with your own hands always pleases not only the eye, but also develops self-love.
We invite you to watch a video of a homemade USB fan:
Tools for usb fan:
- A regular CD (not necessarily new);
- The tube of silicone glue is empty;
- Wooden block;
- Mini disk;
- USB cord;
- Motor;
- Holder;
- Adapter;
- Silicone glue gun.
You need to make three holes in the tube, one in the lid and two on the sides. Holes can be easily made using a regular nail, which must first be heated.
IN wooden block it is also necessary to make a slot or recess. This can be easily done using sandpaper.
The mini disk easily turns into a propeller. To do this, it must be drawn into uniform blades, then heated stationery knife and cut along the pre-drawn lines. And after that, we heat the base of each blade with a lighter and, using our hands, bend each blade a little to make a propeller.
We take the motor, holder and adapter from a non-working CD drive.
Now let's start assembling the USB fan.
Heat up the glue gun. Lubricate the holder along the axis with silicone glue from a glue gun. The propeller must be firmly seated on this glue. Press on all sides. Then, on the other side of the holder, add a drop of glue and glue the adapter. We wait until the glue dries well. This usually only takes a couple of minutes.
Now take a tube of silicone glue, remove the lid and coat the inside with silicone glue. And we insert the motor inside so that the part that we will connect sticks out of the hole that we originally made.
Then we insert the USB cord into the side hole of the glue tube and connect the ends of the wires to the motor.
You need to pour silicone glue into the recess in the wooden block, and place the wire from the USB cord tightly there, and glue the tube itself with the motor inside to the base of the block. And on the other side of the block we glue the CD with silicone glue.
Now the propeller needs to be placed on the side of the adapter glued to it onto the sharp edge of the motor, which sticks out of the hole in the tube from under the glue.
And finally, our USB fan can be plugged into the network and get that long-awaited coolness.
Very often, in the sultry heat, there is not enough air flow in the room. To solve this problem, many people buy table fans; they are convenient and compact, some of them work from USB, that is, they can be connected to any charger, power bank or laptop, so that the coolness is always with you. But why buy something that you can make yourself using available materials? For site readers we have prepared two simple instructions, which will clearly explain how to make a USB fan at home with your own hands. So, all you need to prepare is a sharp knife, good scissors, electrical tape, an unnecessary USB cable and, in fact, executive agency homemade products. As for the latter, it is customary to use one of two options: an old cooler from a computer or a motor from a car or other toy.
Idea No. 1 – Use a cooler
It will take no more than 15 minutes to assemble a USB fan from a cooler. First you need to prepare the cooler. Two wires come out of the device - black and red, and sometimes yellow, even less often - blue. Yellow and blue are of no use to us. We strip the insulation by 10 mm and put the prepared element aside.
Next you need to prepare the USB cable. We cut off one half of it and clean off the insulation at the cut point. sharp knife, stationery is perfect. Under it you will see four wires, of which two are necessary: red and black. We also clean them, but it is better to cut off the other two (usually green and white) and insulate them. 
Now, as you understand, you need to connect the prepared contacts in pairs, according to: red to red, black to black using twisting. After this, you need to carefully insulate the cable connections using electrical tape or heat shrink and make a stand. As for the stand, it’s up to your imagination. Some people successfully use wire, while others cut out a nest in a cardboard box in a very interesting way.
In the end, a homemade mini fan is connected to a computer or charging unit, and you can enjoy the operation of your own electrical appliance.
Cooler idea
Idea No. 2 – Use a motor
In order to make a USB fan from a motor and a CD, it will take a little more time, but you can still easily make such an electrical device with your own hands in an hour. A motor for such a homemade product should be chosen with an operating voltage of approximately 5 Volts, maybe a little more. If you take the motor for more low voltage, then too much current will flow through the circuit and the motor will quickly fail. 
First, we prepare all the elements of the device. In this case, you will need to make an impeller (blades). 
To do this, we recommend using an ordinary CD. We draw it into 8 equal parts and carefully cut it with good scissors, almost reaching the center. Next, we warm up the disk (it’s convenient to do this with a lighter), and when the plastic becomes more elastic, we bend the blades under equal angle(as shown in the photo).
If the impeller is not bent enough, then no air flow will be created during the rotation of the disk. However, if you overdo it, the homemade product will also work poorly and unstable.
When the blades are ready, move on to creating the main mechanism. Inside the disk you need to insert an ordinary one, cut to the right size, a champagne cork that needs to be placed on the motor shaft. Next, we move on to creating a USB fan stand for a laptop. 
Here, as in the previous version, everything depends on your imagination. Of all the available means, the option with wire is the most suitable. When the homemade USB fan is ready, we connect the motor wires to the USB cord wires, as in the previous version, carefully isolate the twist and proceed to testing.
The fan is not a complicated device. It consists of a motor, blades, various adjustment buttons and a stand-case. There are additional elements, such as backlight, clock, but these are options that are not so important.
It is not at all necessary to buy a fan, because you can easily make one yourself. Moreover, this does not require special skills of a master.
With the proper skill, homemade model It will turn out not as a way to get rid of old things, but as an opportunity to show imagination and, possibly, hidden talents. Some craftsmen quite easily create both functional and extremely attractive options. They harmoniously complement the interior and become the center of attention no worse than any art object.
How to make a fan from a regular electric motor
Probably the simplest and quick way To acquire a homemade fan assembled with your own hands, you need to find a regular motor, which is most often found in toys.
Standard electric motor from a toy
Ordering such a thing is not difficult. Moreover, today, without stopping for a minute, caravans of various trinkets from the Middle Kingdom ply. And if not, then it’s enough to buy an inexpensive one toy car and remove the motor from it.
But you definitely shouldn’t expect the impossible from such a device. Rather, it will only be able to move air slightly. But for desktop model It will do just fine. He will be able to blow air onto the face of someone sitting at the computer.
For such a fan you can use absolutely anything. The main parts will be:
- blades;
- motor;
- on/off button;
- stand;
- supply system.
Otherwise, the limit of the idea will only be within the boundaries of imagination.
After the motor is ready for use, it makes sense to take care of the power supply. These could be batteries, just like in the toy for which the motor was intended. But definitely this kind of energy will not last long. However, there is a plus - the device will remain compact and mobile.
The second option is mains power. But in this case you need not to overdo it. Direct connection via a plug is a sure way to burn out the motor. So you shouldn’t experiment, trying to spin the engine to high speeds. On toys, electric motors are usually designed for 3-4.5 Volts, and the desire to provide more rotation due to powerful energy sources, firstly, will quickly drain the source (if it is a battery), and secondly, will seriously reduce the life of the fan, even to the point of failure. The engine will start to heat up and the brushes may melt.
But modern chargers convert the voltage in the network, reducing it to the specified parameters. You can find a power supply, including on sale, that is ideal for the motor.
To create blades, you can take any material. The main thing is that it is light. Due to the weakness of the motor, the less the blades weigh, the faster the rotation will be, and, therefore, the efficiency of the work.
- The easiest option is to take a cork from a regular plastic bottle, which will serve as a fastening for the blades. Make a hole in the bottle the size of the rotating axis of the electric motor.
- The blades can be made from a regular CD. A hole the size of a bottle cap is burned in the center. The circumference of the disk is divided into 8 sectors. They are cut to some distance, but not to the center. Afterwards, the disk needs to be heated with fire to easily bend the blades. A lighter is suitable for this.
Creating blades on a CD
- You can attach the disk to the cork with glue. The second option is when a hole is burned in the middle for the plug - immediately connect the structure. The melted plastic will harden and hold firmly.
- After all this, the structure is connected to each other. Wire is suitable for the stand. This is perhaps the simplest option. And for such a lightweight device, you can’t imagine anything better. You can bend the frame in such a way as to hide the batteries there unnoticed. Or carefully run the power supply wire going to the motor.
- The circuit does not have to be always closed if you use batteries, so you need to secure the button to the case. It's inexpensive. You can use it from a toy from which the motor was removed.
Another option for a propeller design is to use thick paper. The method is even simpler, but less practical.
Advice! When experimenting, remember that the larger the fan blade area, the noisier it will work. On the other hand, small blades do not move air as efficiently.
How to make a fan out of paper
Paper is not the best suitable material for a home fan for the simple reason that it is very impractical. Any ingress of water, even banal humidity, and the device will rapidly begin to lose its hardness.
But even despite all the disadvantages, craftsmen They even make quite nice samples from paper. Of course, we are talking about thick paper or cardboard. Strong material from boxes works well. You will also need a regular motor or cooler, an on/off button and wires.
Simplest table fan using cardboard
The approximate design plan is that the device can be simplified as much as possible. The impeller is easy to cut and can have many or few blades. Everything is at the master's request. The motor can be mounted on a wooden or cardboard block. The stand will also be made from paper or an old computer disk.
It is only important not to forget that such a fan is very light, which makes it shaky in operation. Therefore, it is necessary to further strengthen the body. Old batteries, bolts or nuts work well.
How to make a fan from a plastic bottle
Crazy Hands' favorite raw material is plastic bottles - almost ideal for creating your own fan. The top of a standard round bottle works well for the propeller. You need to cut off the part with the cork just above the pasted label.
- The part of the bottle with the cork will be the blades. To do this, you need to cut the plastic down to the cork so that you get several different petals. After one, the petals are cut off at the base. The remaining ones are future propeller blades.
Fan blades made from a plastic bottle
- You can use a candle or lighter to shape the blades and twist them a little. The main thing is not to overdo it, because the plastic is soft and can catch fire. The goal is to warm it up a little, not set it on fire.
- The plug will be the base of the propeller. A hole is made in it according to the dimensions of the motor axis. To keep the connection firmly, you can put it on glue.
- Now is the time to think about the foundation. The rest of a plastic bottle will also work for this. A hole is cut in it to rigidly place the plug with the blades at a right angle. You must remember to weigh down the base - with nuts, bolts or any other metal objects.
- A hole is made on the base for the button and the chain is assembled. There is also enough space for a power supply.
Field for imagination when working with plastic bottle extensively. You can use several bottles at once. One will become a propeller (more precisely, part of it), and the second will become a solid foundation. But then they will need Additional materials. For example, ordinary drinking straws.
Simple and lightweight bottle fan
How to make a USB fan
But the most convenient and simple fan is an old cooler, which can also be used. For example, put it on a table, and it will cool, but not the processor or video card, but a person.
The advantages of this design are obvious: the cooler is very reliable, because it is its job to constantly turn the impeller and cool something. And it’s easy to get coolers. It is enough to either find an old computer, or order a new fan or buy it in a store.
The cooler design is simple. This is a ready-made fan in a plastic case. There are two wires coming from it (usually red and black).
Regular computer cooler
Making a USB fan takes just a few minutes:
- The wires on the cooler are stripped 1-2 centimeters.
- Take a regular USB cable, at the end of which you also need to get rid of the insulation. The standard USB cable has four wires inside. Of these, you should choose black and red. Cut off the rest so as not to get in the way, and clean up the necessary ones.
- Connect the red wire of the cord to the red one on the cooler. Black - with black. Carefully insulate areas without winding. Ready.
- All that remains is to think about the holding device. Here the already familiar wire, which can take any shape, can come in handy. Even suitable for a fan housing cardboard box, and if you spend a little more effort and time, you can even build a real designer object.
Design approach to fan design
It is very convenient when the fan turns on when the computer starts. Besides, modern blocks have several USB outputs. It turns out that such a device will not interfere.
Another point is that sometimes you want to turn on the fan regardless of the computer’s operation (especially since a device with a cooler turns out to be quite powerful, good and useful). Then you can use adapters. For example, today they make chargers for phones that easily turn into a USB cable when the connector with the plug is disconnected. Similar equipment can be used for a fan, making it universal: operating from the network and from the USB port of any computer. Another advantage of this design is the simplest electrical circuit. A cooler-based fan can even do without extra buttons: just a wire and a plug.
DIY bladeless fan
But a slightly unusual use of a free cooler (but you can get by with an electric motor) is a bladeless fan. Modern, interesting, with the right skill – no less effective – a solution that definitely attracts the eye. The thing turns out to be completely non-standard, spectacular.
For example, here is the ideal appearance bladeless or duct fan model:
This is roughly how you can make a bladeless fan with your own hands
The most important thing about bladeless models is, of course, their appearance. Therefore, if you make such a device yourself, you need to try to think through the frame in the smallest detail. Uneven edges, roughness - all this will spoil the impression.
Frame bladeless fan is almost entirely a work area. Don’t think that some kind of space technology is being implemented here.
Air circulation is carried out quite prosaically - with the help of rotating blades. They hide in the base tube. If you take a cooler from a computer, you can make a stand according to its shape. Here, as they say, at the discretion of the author.
The differences from the classics are in the location of the cooler - it is placed horizontally in a bladeless fan.
Cooler location in a bladeless fan
The top ring is made hollow inside, two-layered. There the main redirection of air in the right direction is carried out.
A hollow cavity is visible in the upper ring of the fan, from where the air blows
You can make the frame of a bladeless fan from plastic, wood, or thick cardboard. It is better to use a flexible material so that you can easily give it the shape of a ring. An alternative is to use a combined structure. For example, the rings are made of cardboard or plastic, and the rigid frame is made of wood.
You need to cut:
- four sides for a stand;
- Two circles of the same radius;
- Twist two rings of different diameters.
Then everything is put together and, if necessary, painted.
Meals can be arranged in different ways. A universal option is a combined wire for the USB connector and a plug for the socket.
The device can also be a little more complicated. For example, make a light strip of diode strip along the edge of the rim. The backlight consumes little energy, but will add beauty to the fan. And the power supply and wiring, if necessary, can easily be hidden in the stand.
How to make a powerful fan with your own hands
When it comes to powerful fans, you need to understand that they require completely different motors. Starting from old fan motors to others household appliances. Good fit:
- unnecessary ceiling chandeliers with fan;
- old lawn mowers;
- drills;
- hoods.
The only thing is that you need to get into the voltage corridor that is required to power the motor. For example, drills most often require 18 volts. But for ventilation purposes, it will be enough to supply less than half of this voltage. Even at 12 Volts, the fans are very loud and extremely unstable due to the strong inertia of the rotating blades.
Food for powerful electric motors needs to be done from the network. Therefore, you need to think about installing a power supply or connecting charger. The electrical circuit can be complicated by adding light bulbs lying around, Digital Watch, radio, toggle switch or board for switching operating modes. But it’s easier, of course, to limit yourself to only a fan with a button, if that’s enough.
In any case, such homemade variations of homemade fans are sometimes much better than even purchased options. With the right skill, you can get a very good thing, a real pride of the owner.