How to make a USB fan from improvised means? Powerful do-it-yourself fan How to make a fan from a small motor

From time to time there is a need for a kind of fan, but small models cost relatively much. Do not rush to fork out, because a small fan can be easily made with your own hands. In terms of efficiency, it is not inferior to purchased counterparts, and its creation will require a minimum amount of materials.

Creating a fan from a cooler

The easiest way to make a fan yourself is to use an unnecessary cooler (these are used in a computer as a cooling system for components).

Not surprisingly, this method is the simplest, because the cooler is just a small fan. It remains only to take a few simple steps to give it its final shape and performance.

The cooler itself is quite functional, but you need to prepare it for a non-standard way of using it:

1. Wires.

If the fan is located near the computer, an ordinary unnecessary USB cable will do. It needs to be cut and the insulation removed (same with the cooler wires):

We are only interested in two wires: red (plus) and black (minus). If there are other colors in the cooler or USB cable, feel free to cut them off and isolate them, because they are absolutely unnecessary and will only interfere.

1. Compound.

After cleaning, the wires must be connected to each other (it is enough to twist them tightly with each other). Don't mix up the colors. This threatens with serious complications in the process of creating a fan.

For twisting, 10 mm length is enough. If necessary, it is allowed to clean most of the wire, this is not scary, but much more will have to be insulated.

1. Security.

Remember that proper insulation is the key to success and a guarantee that the computer or outlet will not short out. Bare wires should be sealed with electrical tape (only in the absence of power), and the thicker it is, the better.

There is no particular point in explaining what threatens the fall of "minus" to "plus". If the red and black wires come into contact during the transmission of electricity, not only the USB wire / port, but also the computer components may burn out.

In principle, computers are not afraid of such moments if they are equipped with protection against voltage surges. But when a wall outlet is used, fixing the wiring in the apartment will be much more difficult than creating a small fan.

Therefore, seriously take care of the insulation of bare parts of the wires. Extra complexity is rarely needed.

1. Final touches.

Do not forget that a computer cooler is very light, but at the same time very fast. Even with a voltage of 5 volts, its speed will be quite high. We consider this voltage for a reason: the cooler will perfectly cope with its task, and the operation will be as silent as possible.

Due to the small dimensions of the device, vibration and vibration may cause it to fall. This should not be allowed for the following reasons:

• such a cooler cannot cause lethal cuts even during operation, but there are no guarantees that the device will not jump up and fly off, for example, in the face;
• falling on a non-flat surface (on a pencil, pen, lighter), its blades can be damaged: fragments broken off at such a rotation speed can cause irreparable damage;
• other unforeseen circumstances.

Therefore, it is important to fix the cooler (with adhesive tape, glue) on some more stable surface: a box, a wooden block, a table.

1. Additional functions.

If desired, the finished fan can be updated externally, add a switch (so as not to pull out the cord every time), etc. But attention is also paid to a method that relatively well increases the efficiency of the device.

Simply cut off the top of a plastic bottle and glue it (with a wide hole) to the cooler frame. Thus, the air flow will be more precise and directed: the force of air movement will be stronger by about 20%, which is a pretty good indicator.

This completes the creation of the fan, and it is ready for full-fledged work.

Disk fan

If the previous option does not suit you, and you want something more complex, then consider creating a fan yourself from computer disks:

1. Engine.

Since we do not use a cooler, it is necessary to acquire some kind of motor that sets the blades of our future device in motion. In fact, you can use the motor of the already mentioned cooler of the cooling system, but this is too simple.

You should find or buy a motor with a certain part of it moving (for example, a protruding iron rod). Since we are making a fan from disks, then having such a rod would be the best option. Motors from an old VCR or player are also great, because they spin discs and cassettes - just what we need for a spinning propeller in our fan.

Don't use a motor from a washing machine or even a past fan - they are extremely strong. Due to self-assembly of the structure, it will be very flimsy. A strong motor in the first few seconds will spread the fragments of the blades around the room and fly off the base.

If there is a running motor, it must be fastened with wires in the previously mentioned form.

With a running engine on hand, we need to concentrate on the disks, which are the main components of our fan. First, cut one into 8 equal pieces:

In order not to make a mistake during the procedure, you can pre-mark the disk with a pencil. It is best to use a soldering iron (there will be no sharp edges, it is safer), but regular scissors will work.

After that, the disk should be slightly heated with a lighter so that the material becomes more pliable, and the wings should be bent in the manner of blades, like conventional fans:

You can do the same with a regular plastic bottle:

In the center of our propeller you need to put a wooden bottle cap. If the size is too big - it can be planed.

1. The rest of the parts.

As a center holding the entire structure, you can use a regular toilet paper roll sleeve:

It should be fixed in the center of the second disk, which will serve as the foundation for the fan. From above, you can place half of the second sleeve, as seen in the photo, so that the motor is inside it. On it you need to hang the blades from the disk / bottle.

The fan is ready to work. Optionally, you can add decorative elements to make the device look more presentable.

And you can see clearly how such a fan is made from a bottle in this video.

Additionally, you should recall the extremely important points when creating a homemade fan:

1. To fasten the parts to each other, you must use high-quality "superglue".

It is the one that cannot be peeled off even if desired. The entire structure must be as stable as possible and not succumb to vibrations and vibrations. Responsibly and cover everything you see with glue, except for the blades and internal parts of the engine.

1. Do not hurry.

You run the risk of missing an important detail, and this greatly increases the chances that something will go wrong during the operation of the finished fan. The consequences can be very serious.

1. Don't use bad parts.

If you do not need the motor that is used to create the engine, its performance may be in doubt. Make sure it lasts for a while and will be effective.

Building an engine from scratch is a highly specialized process and requires good knowledge. Make sure that the motherboards are in order, all the necessary connections are soldered well, etc. It is better to check once again than to make another fan later.

1. Insulation.

We remind you once again: do not forget about the high-quality winding of wires with electrical tape. You should not save it, because short circuits and their repair will force you to sacrifice big expenses. Perhaps even in terms of money.

A hand-held fan is quite compact, efficient and does its job well. It is not difficult to make it if you take the procedure responsibly and follow the instructions. There are no restrictions on dimensions either: if you feel strong, feel free to start assembling a larger fan.

In contact with

The fan is not a complex 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 already options that are not so important.

It is not at all necessary to buy a fan, because it is quite possible to make it yourself. Moreover, this does not require special skills of the master.

With the proper skill, a home-made model will turn out not to be a way to get rid of old things, but an opportunity to show imagination and, possibly, hidden talents. Some craftsmen quite simply get 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 conventional electric motor

Probably the easiest and fastest way to get your own homemade fan assembly is 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 knick-knacks from the Celestial Empire ply. And if not, then it’s enough to buy an inexpensive toy car and remove the motor from it.

But expect the impossible from such a device is definitely not worth it. Rather, it can only slightly drive air. But for a desktop model it will do. He will be able to blow the face of the person 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 be only within the boundaries of fantasy.

After the motor is ready for use, it makes sense to take care of the power. These can be batteries, as in the toy for which the motor was intended. But, of course, such 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, don't overdo it. Direct connection through the plug is a sure way to burn out the motor. So do not experiment, trying to spin the engine up to high speeds. On toys, electric motors are usually designed for 3-4.5 Volts, and the desire to give more rotation due to powerful energy sources, firstly, will quickly land the source (if it is a battery), and secondly, it will seriously reduce the life of the fan up to breakage. The motor will start to heat up, 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, which is ideal for the motor.

To create the blades, you can already take any material. The main thing is that it should be light. Due to the weakness of the motor, the less the blades weigh, the faster the rotations will be, and, therefore, the efficiency of the work.

• The easiest option is to take a cork from an ordinary plastic bottle, which will serve as a fastener for the blades. Make a hole in the bottle according to the size of the rotating axis of the electric motor.
• Blades can be made from a regular CD. A hole is burned in the center according to the size of the cork from the bottle. The circumference of the disk is divided into 8 sectors. They are cut for some distance, but not to the center. After that, the disk must be heated with fire in order to easily bend the blades. For this, a lighter is suitable.

Creating Blades on CD

• You can attach the disc to the cork with glue. The second option - when a hole is burned in the middle for the cork - immediately connect the structure. The melted plastic will harden and hold firmly.
• After all this, the structure is interconnected. Wire is suitable for the stand. This is perhaps the easiest option. And for such a light device, you can’t imagine better. You can bend the skeleton in such a way as to discreetly hide the batteries there. Or carefully run the power supply wire going to the motor.
• The circuit should not always be closed if batteries are used, so a button must be fixed on the case. She is inexpensive. You can use it from the toy from which the motor was removed.

Another version of the propeller device is the use of paper, only thick. The method is even simpler, but less practical.

Advice! When experimenting, remember that the larger the fan blade area, the more noisy it will be. On the other hand, small blades do not move air as efficiently.

How to make a paper fan

Paper is not the best 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 rigidity.

But even despite all the disadvantages, craftsmen even make quite nice samples from paper. Of course, we are talking about thick paper or cardboard. Strong material from boxes is good. A regular motor or cooler, an on / off button and wires are also useful.

The simplest table fan using cardboard

An 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. All at the request of the master. The motor can be mounted on a wooden or cardboard bar. The stand will also go from paper or an old computer disk.

It is only important not to forget that such a fan turns out to be very light, which makes it shaky in operation. Therefore, it is necessary to further strengthen the body. Old batteries, bolts or nuts are good.

How to make a plastic bottle fan

Crazy Hands' favorite raw material - plastic bottles - are almost perfect for creating your own fan. For a propeller, the top of a standard round bottle works well. It is necessary to cut off the part with the cork just above the glued label.

• The part of the bottle with the cork will be the blades. To do this, the plastic before the cork needs to be cut so that several different petals are obtained. After one, the petals are cut off at the base. The rest are the future propeller blades.

Plastic bottle fan blades

• To shape the blades and twist them a little, you can use a candle or a lighter. The main thing is not to overdo it, because the plastic is soft and can catch fire. The task is to warm it up a little, and not set it on fire.
• The cork will be the base of the propeller. A hole is made in it according to the dimensions of the axis of the motor. To keep the connection firmly, you can put it on glue.
• Now is the time to think about the foundation. The rest of the plastic bottle is also suitable for it. A hole is cut in it to firmly place the cork with the blades at a right angle. It is necessary not to forget to weight 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 the power supply.

The field for imagination when working with a plastic bottle is extensive. You can use several bottles at once. One will become a propeller (more precisely, part of it), and the second will become a good base. But then additional materials will be needed. For example, regular drinking straws.

Simple and lightweight bottle fan

How to make a usb fan

But the most convenient and simplest fan is exactly the old cooler, which can also be used. For example, put it on the table, and it will cool, only not the processor or video card, but the person.

The advantages of this design are obvious: the cooler is very reliable, because it is his job to constantly turn the impeller and cool something. Yes, and getting coolers is easy. It is enough to either find an old computer, or order a new fan or buy it in a store.

The cooler device is simple. This is a ready-made fan in a plastic case. Two wires (usually red and black) depart from it.

Regular computer cooler

Making a USB fan is a matter of minutes:

1. The wires on the cooler are stripped by 1-2 centimeters.
2. A regular USB cable is taken, at the end of which you also need to get rid of the insulation. The standard USB cord has four wires inside. Of these, you should choose black and red. Cut off the rest so as not to interfere, and clean up the necessary ones.
3. Connect the red wire of the cord to the red one on the cooler. Black - with black. Carefully insulate areas without winding. Ready.
4. It remains only to think about the holding device. Here the already familiar wire, which takes any shape, can come in handy. Even a cardboard box will do for the fan case, and if you spend a little more time and effort, you can even build a real design object.

Design approach to the design of the fan

It is very convenient when the fan turns on when you start the computer. In addition, modern blocks have several USB outputs at once. It turns out that such a device will not interfere.

Another point - 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, phones today make chargers that easily turn into a USB cord when the plug is disconnected. Similar equipment can also be used for a fan, making it universal: powered from the network and from the USB port of any computer. Another plus 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 uncommon use of a free cooler (but you can get by with an electric motor) is a bladeless fan. Modern, interesting, with due 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 of a bladeless or ducted fan model:

This is 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, then you need to try to think through the frame in great detail. Rough edges, roughness - all this will spoil the impression.

The case of a bladeless fan is almost entirely a working area. Do not think that some space technologies are implemented here.

Air circulation is carried out quite prosaically - with the help of rotating blades. They hide in a tuba base. If you take a cooler from a computer, then 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.

Location of the cooler in a bladeless fan

The upper ring is made hollow inside, two-layer. 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 air blows

You can make the frame of a bladeless fan out of plastic, wood, thick cardboard. It is better to use a flexible material so that it can be easily shaped into a ring. Alternatively, use a combined structure. For example, rings are made of cardboard or plastic, and the frame is rigid - made of wood.

You need to cut out:

• four faces for the stand;
• Two circles of the same radius;
• Twist two rings of different diameters.

Then everything is connected together, if necessary - painted.

Meals can be organized in different ways. A universal option - a combined cable for a USB connector and a plug-in plug for an outlet.

The device can also be slightly complicated. For example, make a light strip from a diode tape along the edge of the rim. The backlight consumes little energy, but it will add beauty to the fan. And the power supply and wiring, if necessary, can be easily 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 the motors of old fans, ending with other household appliances. Well suited:

• unnecessary ceiling chandeliers with a fan;
• old lawn mowers;
• drills;
• hoods.

The only thing you need to get into the voltage corridor, which is required to power the motor. For example, drills most often need 18 volts. But for ventilation purposes, it will be sufficient 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.

Power for powerful electric motors must be done from the network. Therefore, you need to think about installing a power supply or connecting a charger. The wiring diagram can be complicated by adding light bulbs, an electronic clock, a radio, a toggle switch or a 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 proper skill, a very good thing can turn out, the real pride of the owner.

If there is no air conditioner or even a domestic fan at home, and the summer heat does not allow you to live normally, you can turn on your ingenuity and use old computer parts. Any craftsman can assemble a fan from a cooler, fortunately, building materials are always at hand, and in every home or office you can fish out something useful from computer trash.

Materials for useful crafts

To make this simple DIY device, you will need the following materials and tools:

• soldering iron and related accessories (solder, rosin);
• a piece of USB cable of any length;
• knife, wire cutters, electrical tape;
• the computer cooler itself (one or more).

The fan will be connected via USB to the computer. This makes it possible to dispense with the use of a fan without third-party power supplies.

Coolers come in different sizes. Their design includes wires with which you can adjust the number of revolutions depending on the temperature of the CPU. In our case, these wires are not needed - we will only work with the black (minus) and red (plus) wires, which receive voltage from the computer motherboard. The remaining strands can be cut off with wire cutters so that they do not interfere with assembly. We need to do this carefully so as not to damage the red and black wires we need.

Operating procedure:

1. Take any unnecessary USB cable you need to connect the cooler to it. Perhaps it will be formally non-working, but here we need to find wires of the same colors as the cooler. The remaining wires are removed with wire cutters for ease of use.
2. Remove the outer insulation from the USB cable with a sharp clerical knife: measure a distance of about 3-4 cm from the end of the wire and attach the knife to the wire.
3. Then, in a circular motion, without pressing, circle the wire in a circle.
4. Now pull on the insulation - it should easily move away and expose the bundle of wires.

If you apply too much pressure, cutting through the insulation can damage the insulation of the wires under the outer layer of plastic that you cut. Then you have to bite off the entire braid and repeat the procedure due to the fact that a small violation of the integrity of the insulation usually leads to a short circuit. Now that you have prepared the wires with your own hands, you can proceed to the next step.

Soldering and insulating wires

Take the wires of the cooler and the USB cable, loosen about 10 mm of insulation and twist them so that the red wire connects to red and the black wire to black. Next, you will need a soldering iron to tin the twisted ends and thereby give strength to the connection. To do this, you need to do this:

• heat the soldering iron and prepare a piece of rosin or flux;
• attach twisted wires to rosin or soak in flux;
• melt a piece of solder or tin on the tip of the soldering iron;
• run the tip over the twisted wires if they are flux-treated, or attach them to a piece of rosin and apply a little pressure with a hot tip.

This process is called tinning wires or do-it-yourself processing of contact points with red-hot tin. Rosin is needed so that the tin can better bond to the surface of the bare USB wire.

Now you need to isolate the conductors so that a short circuit does not occur when connected to the computer's USB connector. So, unwind a piece of electrical tape about 3-5 cm long and pass it between the soldered wires. Wind one wire so that the tin-plated contact is securely insulated and no pieces of bare conductor are visible through the layers of electrical tape. Next, you need to cut off another piece of electrical tape and do the same with the second wire.

Stand

It's time to think about the fan stand you just made. You will need a piece of copper or aluminum wire. Take a piece of wire and bend it in the shape of the letter "P". Thread the ends through the bottom two bolt holes on the cooler. Bend the wire and thread the ends through the top holes. Now you can adjust the fan tilt level.

If there are many fans

You can make a whole battery of fans with your own hands. To assemble a fan from four or more coolers, you need to know how to properly connect them to a power source (computer USB connector), as well as how to connect these fans to each other.

Connecting cables

From the school physics course, we know that there are two types of connections - serial and parallel. With the first type of connection, you need to take the red (positive) wire from the USB cable and connect it to the red wire of the first cooler, and connect the black wire of the first cooler to the red wire of the second cooler, and so on. The last one, black, is connected to a residential USB cable of the same color.

Parallel connection is much simpler: all the red wires are assembled in one twist, just like the black ones. The red wires connect to the red wire of the USB cable, and the black wires, respectively, to the black one. For greater reliability of contact, it is necessary to make tinning and wrap the contact points with electrical tape, as described above.

Registration

Now you need to think about the design of the fan unit that you made with your own hands. In order to collect all the coolers together, you need to decide what shape the design will be in the form of. You may find it easier to fold them in a square or just line them up.

In any case, for these purposes you will need a glue gun, which is usually used to make do-it-yourself products in circles of technical creativity or floristry. You can use it to glue the ribs of the coolers in the right places and let it cool. But if you don't have a gun, and only have wire and duct tape, then you can fasten the coolers through the bolt holes with wire, and wrap the edges with black duct tape.

So, you managed to make sure that making a simple blowing of the room with your own hands is simple and accessible even to a person who is far from technical creativity. Such simple solutions can help out in a situation where you need to keep the room cool in calm weather, and a conventional fan has either broken down or is simply not in the house. In these cases, simple ingenuity comes to the rescue.

The weather is getting warmer outside, it's time to think about ventilation. In this issue, Roman Ursu will be making a bladeless fan. You can easily repeat this product with your own hands. Four pieces of cardboard are used in the product. The width must match the width of the cooler. 120 mm. A switch and a power connector are built into the housing. We will measure and make a hole according to the desired diameter. You will also need a 12 volt cooler power supply that consumes 0.25 m. A 2 amp unit, so that's enough. The top of the Dyson fan is cylindrical. This means that we draw two circles with a diameter of 15 cm. In one of them 11 cm, in the other 12 cm. To keep the parts well on the base, we take one of the walls, apply the parts, draw a line and cut it off. Now, in order to form the cylinders, you will need three segments with the following dimensions: 12 x 74, 12 x 82, 15 x 86 cm. We will figure out what and where to glue at the assembly stage. Let's make cuts in each wall. These will be the air channels. They look like good legs.

Let's start assembling a bladeless beautiful fan by placing the courier in the middle. Glue each wall one by one. The wires can be removed as shown in the video. It would be nice to figure out the connection. We use the switch, so we separate one of the wires and form a circuit. The wires go to the power connector, black to minus, red to plus.

It is necessary to connect all the previously prepared parts with your own hands. We take a ring with an inner diameter of 11 cm. It will be in front. And a segment 12 × 74. We connect, as in the video.

We repeat the same with the second ring and the 12 x 82 blank. To keep the fixed rings stable, we use five small baffles of strength. The length is slightly less than 12 cm. It remains only to close the structure.

We use the last segment 15 x 86 cm.

In conclusion, we bring beauty, remove excess glue, cover with paint. In general, the bladeless fan is ready.

There are a lot of useful homemade products ahead, we are waiting for the warm sun to shoot the next video and show it on the channel.

Summer has come, which means heat, heat and an eternal lack of coolness. But this problem is fixable, and pretty easy. You only need a few details and some free time to make your life easier with your own hands, fill it with light coolness, which you will certainly get by making a USB fan at home. Of course, you can go and buy a fan in the store, but how nice it will be to sit near the same computer, and a light breeze will blow on you from the USB fan you created. And a thing created by one's own hands always pleases not only the eye, but also develops selfishness.

We offer you to watch a homemade video - usb fan:

Tools for usb fan:
- Regular CD (not necessarily new);
- A tube of silicone glue is empty;
- Wooden block;
- Mini disk;
- USB cable;
- Motor;
- Holder;
- Adapter;
- Silicone glue gun.

Three holes must be made in the tube, one in the lid, and two on the sides. Holes are easy to make using a regular nail, which must first be heated.

It is also necessary to make a slot or recess in a wooden block. This can be done easily with sandpaper.

The mini disk easily turns into a propeller. To do this, it must be drawn into uniform blades, then heated with a clerical knife and cut along pre-drawn lines. And after that, we heat the base of each blade with a lighter and with the help of our hands we 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 planted on this glue. Press on all sides. Then, on the other side of the holder, we drip a drop of glue and glue the adapter. We are waiting for the glue to dry well. This usually only takes a couple of minutes.

Now we take a tube of silicone glue, remove the lid and grease the inside with silicone glue. And inside we insert the motor so that the part that we will connect sticks out of the hole that we originally made.

Then we put the USB cable into the side hole of the glue tube and connect the ends of the wires to the motor.

It is necessary to pour silicone glue into the recess in the wooden bar, and put the wire from the USB cable tightly there, and glue the tube with the motor inside to the base of the bar. And on the other side of the bar, glue the CD on silicone glue.

Now the propeller must be mounted on the side of the adapter glued to it on the sharp edge of the motor, which sticks out of the hole in the glue tube.

And finally, our USB fan can be plugged in and get that long-awaited coolness.