Homemade axial fan with your own hands. DIY fan made from a cooler and a disk. Where to get an electric motor

Let's make a simple fan.
You will need:
1. 3V motor
2. Section for 2 batteries of 1.5 V each. I bought it from the CHIP and DIP store.
3. Switch.
4. Wire 15 cm.
5. Reels from fishing line or ropes, a jar from Polysorb, a jar of gouache.
6. Impeller from the power supply cooler.
7. Soldering iron.
8. Thermal gun.
9. Self-tapping screws 11 pcs. 2 cm long.

1. Take spools of thread with a diameter of 5 mm and a height of 4.5 cm - from fishing line or cord.
We mark a hole for the switch with a marker and cut a hole slightly smaller than the size of the switch with nail scissors and insert the switch into the reel:

A USB cooler is a very ordinary fan, however, smaller in size, which connects to the corresponding connector on the computer. You can purchase a ready-made device or make it yourself, which is quite simple; the most important thing is to strictly follow the instructions.

How to make a fan

It is worth noting that this kind of technique is not considered particularly powerful, however, practice and numerous positive reviews convince us otherwise. Like any other device, such a fan has certain pros and cons.

The main advantages include the fact that:

• It is compact;
• Multifunctional:
• It's easy to use;
• You can make it yourself.

Among the main types of such fans you can find table and compact models. Desktop options cope well with their main task and can efficiently cool computer parts even if it is long-term use. USB mini fans are distinguished by their compact size. Their design can be absolutely anything, and in terms of power they are somewhat inferior to desktop models. Compact options are designed only for light cooling of equipment, while desktop models are designed for high-quality cooling of the room and the space around the computer.

This type of equipment has very few disadvantages, however, if a person does not have even the slightest idea about the operation of equipment and electronics, then he does not even need to try to make a fan at home.

In addition, it is worth considering that mini-models cannot regulate the direction of the air flow, and in order to solve this problem, you will have to put in a lot of effort. Working at a computer in summer time, many people suffer from extreme heat, even if there is an air conditioner, since it is not always convenient to turn it on.

To solve this problem, you can make a small fan out of:

• Cooler;
• Motor;
• Small engine.

A homemade fan can also be connected to a car using a USB cable. Such homemade products can be very useful and can be made from unnecessary parts.

Initially, you need to take the old cooler and prepare it. It has two wires: black and red. Approximately 10 mm of insulation must be removed from each wire.

Important! How larger size cooler, the greater the wind flow will result.

You also need to prepare the USB wire by stripping the insulation on it. The result should be 2 red and 2 black wires. Then connect these wires to each other, taking into account color coding. Everything is well insulated. It is worth remembering that the more insulation, the better. Then attach to the received device additional elements, which will act as a means for greater cooling or simply decoration. For convenience, you can install the finished cooler in a shoebox to make it more stable and connect the wire to the computer. You can also make a fan using a motor from a toy or an engine as a base. This will allow for better room cooling.

There are many options self-made a fan that will work no worse than a purchased product.

A homemade fan can be made from:

• Disk;
• Thick paper;
• Plastic bottle.

Very easy to do small fan from ordinary computer disks. It can be used to cool a computer or laptop, as well as a user who spends a lot of time working with technology.

To do this, you initially need to prepare such materials as:

• CDs;
• Motor;
• Wine cork;
• USB cable with plug;
• Cardboard.

The motor can be taken from old toy, for example, cars. The assembly process is quite simple. To do this, you need to take one disk and use a marker to divide it into 8 identical parts. Then draw a soldering iron along these lines from the transparent part to the edge and cut with a knife heated on the stove.

Lightly heat the surface of the disk over the flame of a burning candle so that the blades can be slightly expanded. Insert into the hole wine cork, fix and process the edges with hot glue.

Connect the USB cable to the motor. Make a tube out of cardboard, to which you glue the motor, as well as another whole disk, which will act as a stand. When everything is ready, attach the propeller to the motor shaft and fan rod. Secure it with hot glue. Despite the fact that the process of making it takes a lot of time, however, the result will definitely please you. The blades of the disk will rotate, resulting in good cooling. If necessary, you can install a mini flash drive and connect the watch. You can also make a battery-powered fan or power it by connecting a generator. It all depends on own preferences and knowledge of technology and electronics. Such crafts are quite easy to implement; the most important thing is to do everything step by step and strictly follow the instructions.

Simple DIY fan

You can make your own quite original and stylish paper ceiling fan. This bladeless model is somewhat similar in appearance to a snail, which attracts buyers. However, it works very well and can be easily made by yourself. The operating principle of such a fan is quite simple, since at the base of the device there is a small turbine that helps create air currents passing through the side holes.

To create such a device you will need:

• Computer cooler;
• Old computer case with power and USB connector;
• Switch;
• Thick paper;
• Hot glue gun.

First you need to make the base of the device. For this purpose it is used thick cardboard or paper. The parameters must be taken into account based on the size of the cooler. Integrate a switch and power connector into the housing.

Then cut out two circles from paper that will act as the main part of the fan. They are attached to the body of the product. Assemble the device, fastening all parts with hot glue so that the cooler is located in the central part of the case. Place the wires in a corner of the structure. Then connect the switch and make a test connection to the network. If everything works, you need to attach parts cut out of paper to the body to make the device safe. Thus, the impeller will be located inside the device itself, which is completely safe during its operation. In addition, you can make a hood in almost the same way, however, you should use a powerful working compressor.

Methods: how to connect a cooler to USB

You can quite simply connect the cooler to the USB and you don’t need any specific knowledge or skills to do this.

This will require:

• Computer cooler;
• USB cable;
• Insulating tape.

Initially, you need to carefully strip the wires on the cooler and the USB cable by about 1 cm each. Connect them together by color and if you have a soldering iron, then it’s best to solder them. Then you need to wind the electrical tape so as to completely insulate the wires, otherwise the USB port may burn out when the contacts are closed. After this, check the functionality of the cooler. In just a few minutes you can get a very good coolant.

How to make a fan with your own hands (video)

Making a fan yourself is not at all difficult. The most important thing is to choose the right materials and components, and also carry out all the steps step by step.

If there is no air conditioning or even a household fan at home, and summer heat doesn’t allow you to live normally, you can use your wits and use old computer parts. Any craftsman can assemble a fan from a cooler, fortunately, the materials for construction 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 device with your own hands, 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;
• myself computer cooler(one or more).

The fan will be connected via a USB connector to the computer. This makes it possible to use the fan without third-party power sources.

There are coolers different sizes. Their design includes wires with which you can adjust the number of revolutions depending on the temperature of the central processor. In our case, these wires will not be needed - we will work only with the black (minus) and red (plus) wires, which receive voltage from the computer motherboard. The remaining wires can be cut off using 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 cores we need.

Operating procedure:

1. Take any unnecessary USB cable you need to connect the cooler to it. It may not be formally working, but here we need to find wires of the same colors as the cooler. For ease of work, the remaining wires are removed using wire cutters.
2. Remove the outer insulation from the USB cable with a sharp utility knife: measure a distance of approximately 3-4 cm from the end of the wire and apply the knife to the wire.
3. Then, in a circular motion, without pressing, draw the wire in a circle.
4. Now pull the insulation - it should easily come away and expose the bundle of wires.

If you press too hard, cutting the insulation may damage the insulation of the wires underneath the outer layer of plastic you cut. Then you will have to bite off the entire braid and repeat the procedure due to the fact that a slight violation of the integrity of the insulation usually leads to a short circuit. Now that you have prepared the wires yourself, you can proceed to the next step.

Soldering and insulating wires

Take the wires of the cooler and the USB cable, remove about 10 mm of insulation and twist them so that the red wire is connected to the red, and the black to the 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 the twisted wires to rosin or soak them in flux;
• melt a piece of solder or tin on the soldering iron tip;
• run the tip along the twisted wires if they are treated with flux, or apply them to a piece of rosin and press a little with a hot tip.

This process is called tinning the wires or treating the contact points with hot tin with your own hands. Rosin is needed to help the tin bond better to the surface of the bare USB wire.

Now you need to isolate the conductors to prevent this from happening. short circuit when connected to a computer's USB port. So, unwind a piece of electrical tape about 3-5 cm long and pass it between the soldered wires. Wrap one wire so that the tin-coated contact area is reliably insulated and no pieces of bare conductor are visible through the layers of insulating 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 a stand for your DIY fan you just made. You will need a piece of copper or aluminum wire. Take a piece of wire and bend it into a “P” shape. Thread the ends into the bottom two bolt holes of 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 the power source (USB connector of the computer), as well as how to connect these fans to each other.

Connecting cables

From school course physicists 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, connects to the core of the USB cable of the same color.

Parallel connection is much simpler: all the red wires are assembled into one twist, just like the black ones. The red wires are connected to the red wire of the USB cable, and the black wires, respectively, to the black wire. To make the contact more reliable, you need to make tinning and wrap the contact points with electrical tape, as described above.

Decor

Now you need to think about the design of the fan unit that you made yourself. In order to assemble all the coolers together, you need to decide what shape the structure will be in. You might find it easier to fold them into 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 DIY products in technical creativity or floristry circles. You can use it to glue the ribs of coolers in in the right places and let cool. But if you don't have a gun and just have wire and tape, you can fasten the coolers through the bolt holes with wire and wrap the edges with black tape.

So, you have managed to make sure that making a simple room air blower with your own hands is simple and accessible even to a person far from technical creativity. Such simple solutions can help out in a situation where you need to keep the room cool in windless weather, but a regular fan is either broken or 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 episode Roman Ursu will do 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 power connector are built into the housing. Let's take the dimensions and make a hole according to the required diameter. You will also need a 12-volt power supply for a cooler that consumes 0.25 m. The unit is 2 amperes, so that’s enough. Top part The Dyson fan is cylindrical in shape. This means that we draw two circles with a diameter of 15 cm. One of them is 11 cm, the other is 12 cm. To ensure that the parts stick well to the base, we take one of the walls, apply the parts, draw a line and cut them off. Now, 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 nice legs.

Let's start assembling a beautiful bladeless fan, placing the courier in the middle. We 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 a 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.

You need to connect all the previously prepared parts with your own hands. Take the ring from internal diameter 11 cm. She will be in front. And the segment is 12x74. We connect as in the video.

We repeat the same with the second ring and the 12 x 82 blank. To keep the rings fixed and stable, we use five small strength partitions. The length is just under 12 cm. All that remains is to close the structure.

We use the last piece 15 x 86 cm.

Finally, we make it beautiful, remove excess glue, and cover it with paint. In general, the bladeless fan is ready.

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

You are sitting at the computer, it’s summer outside, there is no air conditioning. My hand is already tired of endlessly fanning myself with newspaper, and sweat from my forehead is dripping onto the keyboard. Common situation? If you don’t have extra money, a homemade fan will help. To make it, you don't need to run to the store for parts. Everything you need for a leaf blower is in the house. Don't know how to make a free fan at home? Follow the text!

What does an air cooler consist of:

• engine
• fan blades
• stand
• power supply

The last point can be omitted if you do USB fan with your own hands. The computer has a voltage of 5 volts. You will need a printer cable, an old mouse, or any unnecessary device with a USB cable.

If you are a fan of homemade products, you probably have some in your house. useful trash. Otherwise, you have no need to know how to make a fan yourself.

Can't find an electric motor in a box of unwanted parts? You can make a fan from a motor from an old disk drive or a broken toy. Let's look at a few examples of how to make a mini fan from scrap materials.

Glue, cardboard, toy motor

To make a small propeller you will need a piece of corrugated cardboard 30x30 cm.

We glue the support in 2-3 layers, the area is at least two palms. We make the rack for the engine in the form of a prism 10–15 cm high. For cutting, we use a stationery knife. We bend the structure along a ruler.

How to make a mini fan durable and stable? Let's use a glue gun. No other glue will allow the connection to be made as reliably.

We connect with hot glue, and as thickly as possible: the structure should turn out to be monolithic. The blades can be made from thinner cardboard. The packaging for a mobile phone accessory is suitable.

This is the most critical element: the blades must be absolutely identical in shape and weight. Otherwise, your propeller will vibrate during operation and will quickly fall apart.

We glue the blades (carefully) onto a cardboard sleeve, observing aerodynamics. The planes should be rotated 30–45 degrees in opposite directions. To simplify the design, we assemble a USB fan with two blades with our own hands. They are easier to balance, and such a propeller can cope with cooling no worse than a three-bladed one.

Test run and balancing

We make a hole in the very center of the bushing (using an awl), place it on the motor axis, and carry out a test run. Of course, before assembly it is necessary to coordinate the angle of attack of the blades with the direction of rotation of the motor. Otherwise, the fan will blow in the opposite direction. If there is vibration, the propeller can be easily balanced by simply lifting the blades. After making sure that the propeller rotates smoothly and blows where required, we glue the motor onto the stand. Don't spare glue!

We connect the USB cable to the power wires of the engine. Of course, it is better to do this with a soldering iron, but given the meager power, you can get by with simple twisting. The main thing is not to forget to insulate the connection using electrical tape or tape.

How to determine the power pins of a USB cable

Any USB connector consists of 4 pins. We are not interested in averages, these are information wires. The 5 volt power supply is on the outermost contacts. Wiring in the illustration:

If you reverse the polarity, nothing bad will happen. The motor will just spin in the wrong direction. How to determine the motor supply voltage? There is no need to look for markings. If the toy (where it was installed) is powered by three batteries (1.5 volts each), then the motor is 5 volts. If it runs on two batteries, it will not be suitable for USB power.

CD

Don't know how to make an efficient CD fan? It's easier than it seems. We divide the disk into 8 sectors. An even number of blades is easier to balance if axial runout occurs.

We cut out the blades with ordinary scissors. You can do this work with a construction knife, or melt the sectors with a soldering iron - there is not much difference. If you accidentally break a CD, get a new one.

The extra segments are broken out, the rest are given the aerodynamic shape of a propeller. To do this, just heat the workpiece over a candle or using construction hair dryer. If you make a mistake with the geometry, you can always correct the situation by reheating. This is the advantage of crafts made from a CD.

In the center of the structure we glue a thickening: any piece of plastic 5–10 mm. We drill a hole in it for mounting on the electric motor shaft.

Where to get an electric motor

This design uses a drive from a floppy drive. Power supply is 5 volts, speed is moderate. Most likely, you do not have a separate disk drive collecting dust on a shelf; it can be found in the system unit. Nobody uses floppy disks anyway, you can safely disassemble it for spare parts.

The convenient flat motor housing allows you to assemble the fan on a flexible leg. To do this, twist a piece of single-core copper wire into a pigtail and attach it to the power cable using electrical tape.

The motor with the propeller is glued to the flexible stand either with hot glue or wrapped with the same electrical tape. Unless you're entering a fan design competition, you don't have to worry about aesthetics.

After spending 2–3 hours, you get a convenient, portable “device” that can be installed anywhere without leaving your computer.

Aesthetics from a plastic bottle

If you want not only fresh air, but also a product that pleases the eye, we use other materials. The basic components remain the same: a motor from a children's toy and an old USB cord. By the way, you can connect such a fan to a 220 volt outlet using Charger for a smartphone (with the same USB port).

The highlight of the design is the body. The propeller is made from plastic bottle. The twisted plug will serve as an axial bushing. The stand can be made from a bunch of cocktail straws.

We assemble the elegant base from a second PET bottle and a CD glued to the bottom. If you have free components, you can install a connector and a switch.

Despite the “lightness” of the design, the fan turned out to be quite stable. If necessary, you can put some weight in the body.

Use of factory parts

Let's return to the presence of conditionally unnecessary computer components in the home workshop. For example, a cooler from a power supply or system unit.

The electrical part of the work is reduced to a minimum. If the power is 5 volts, we work according to the scheme: USB cable. To supply 12 volts you will have to look for a power supply or a phone charger. In addition, there are “turbines” that are connected to a 220 volt network.

Actually, to make a fan from a computer cooler, you just need to fix it on some kind of stand. And if you use batteries instead of a USB cord, the flow of fresh air can be organized anywhere.

Video on the topic