How can you replace the fan blades

What can you make a propeller for a fan. How to make various types of fans with your own hands. How to make a powerful fan with your own hands

You are sitting at the computer, outside the window, there is no air conditioner. The hand is already tired of endlessly fan the newspaper, and sweat from the forehead drips to the keyboard. Familiar situation? If there is no extra money, a home.Made fan will help. To make it, no need to run to the store for details. Everything you need for blower is in the house. Do not know how to make a free fan at home? Follow the text!

The last item can be lowered if you make a USB fan with your own hands. The computer has a voltage of 5 volts. You will need a cable to connect the printer, an old “mouse”, or any unnecessary device with a USB cord.

If you are a lover of self.Use, you probably have a useful trash in the house. Otherwise, you do not need to know how to make a fan with your own hands.

In a box with unnecessary spare parts, an electric motor was not found? You can make a fan from a motor from an old drive or a broken toy. Consider a few examples of how to make a mini fan from improvised materials.

Glue, cardboard, motor from the toy

For the manufacture of a small propeller, you will need a piece of corrugated cardboard 30 × 30 cm.

We glue the support in 2-3 layers, an area of ​​at least two palms. We make a rack for the engine in the form of a prism of 10-15 cm high. For cutting, we will use a clerical knife. We decide the design in the ruler.

replace, blades

How to make a mini fan is strong and stable? We will use a glue gun. No other glue will allow the connection as reliable.

Further the most difficult: propeller. The central sleeve is not necessary to make wood or plastic. Cut it out of the same cardboard.

We combine thermoclay, and as it can be thicker: the design should be monolithic. Blades can be made of thinner cardboard. Suitable packaging from an accessory for a mobile phone.

This is the most responsible element: the blades should be exactly the same in shape and weight. Otherwise, your propeller will vibrate during work and quickly fall apart.

Glue the blades (carefully) onto the cardboard sleeve, observing aerodynamics. The planes should be deployed 30–45 degrees in opposite directions. For simplicity of design, we collect a USB fan with our own hands with two blades. They are easier to lick, and with cooling such a propeller will cope no worse than a three.Lobed.

Trial launch and balancing

We make a hole in the very center of the sleeve (using the awl), put on the axis of the motor, carry out test inclusion. 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 a vibration, the propeller is easy to lick, just crawling the blades. After making sure that the propeller is spinning evenly, and blowing where it is required, we glue the motor on the rack. Do not regret glue!

Connect the USB cord with engine wires. Of course, it is better to do this with a soldering iron, but given the meager power. You can do with a simple scrap. The main thing is not to forget to insulate the connection using island or tape.

How to determine USB wire contacts

Any USB connector consists of 4 contacts. We are not interested in average, these are information wires. Food 5 volts is at extreme contacts. Swing in the illustration:

If you confuse polarity, nothing terrible will happen. Just the motor will spin in the wrong direction. How to determine the voltage of engine power? There is no need to look for the marking. If in the toy (where it was installed), power from three batteries (1 each.5 Volta). Then the engine is 5 volts. If from two batteries. It will not work for USB power.

Compact disc

You do not know how to make an effective fan from CD? This is easier than it seems. We mark the disc for 8 sectors. Even number of blades is easier to assign if there is an axial beating.

Cut the blades with ordinary scissors. You can do this work using a construction knife, or pay the sector with a soldering iron. There is no big difference. If you inadvertently break CD, take a new.

Excess segments are broken out, the rest is given the aerodynamic form of the propeller. To do this, just heat the workpiece above the candle or with the help of a building hairdryer. If you are mistaken with geometry, you can always correct the situation with repeated heating. This is the advantage of crafts made from CD.

In the center of the structure we glue the thickening: any plastic fragment 5-10 mm. In it we drill a hole for planting on the shaft of the electric motor.

Where to get an electric motor

In this design, a drive from a disc is used. Food 5 volts, moderate speed. Most likely, you do not have a separately dusting on the shelf of the drive, it can be found in the system unit. No one uses discs anyway, you can safely disassemble it for spare parts.

Program for measuring the processor temperature

In order to have the opportunity to find out and control the temperature of the computer processors and video cards in their nuclei in their operation, sensors are installed. In modern computers, the CPU temperature can be found by going to BIOS. But it is inconvenient to restart the computer during operation on it, and during the reloading time the load on the processors will decrease and the measured temperature will be lower than it was during the maximum loading of processors.

But this issue is easily resolved using the program. It is enough to start the utility and you can monitor the temperature mode of the computer of the CPU of the computer. Programs, as a rule, provide many more additional information on computer work.

I bring to your attention two simple programs for monitoring the temperature regime of processors that can be downloaded directly from my site. These utilities do not need to be installed, it is enough just to start and immediately see the CPU temperature and many other computer parameters in a pop.Up window.

Real TEMP only works with Windows and is designed to control the temperature and other computer parameters collected on the Intel processor basis.

The Open Hardware Monitor program operates under all versions of Windows and Linux, supports motherboards collected on the basis of Intel and AMD processors.

Cooler’s blades are poorly rotated

In the case when the fan does not pull and poorly drives the air, you will need to disassemble the case in which the motor is located. Sometimes the fact that the propeller does not spin can signal the lubrication insufficiency in the sliding bearing installed in the electric motor.

Dismantling the fan is as follows.

  • First you need to unscrew the protective grid (its front part) and remove it.
  • After the grid, disconnect the propeller. He can be screwed to the shaft of the motor with a nut with left thread. That is, to unscrew the nut, rotate it clockwise, and for its twisting it is counterclockwise.
  • Remove the rear protective net by unscrewing another nut.
  • Unscrew all the fasteners holding the casing of the unit. Sometimes in the handle to adjust the rotation of the case there is another bolt. If it is not unscrewed, it will not work to remove the motor casing.
  • Now, the engine is open, drip a few drops of machine oil (it is better to use spindle oil) on the sleeve (indicated by the red arrow) and turn the shaft several times in different directions so that the lubricant is absorbed inside.
  • After this procedure, a slight rotation of the shaft resumes. Collect the motor body in the reverse order.
  • Turn on the unit and check the air flow strength.

Search for fan faults and ways to eliminate them

To reduce the cost and achieve a low noise level during operation in the fan electric motors, sliding bearings are installed. As a result, after a couple of years of operation, the lubricant is produced, and this is the most common cause of fan breakdowns.

Table of fan faults and recommendations for their repair
External manifestation of a malfunction Possible cause of the malfunction Search for a malfunction Repair method
The ventilator after a while after normal operation turns off and after time it turns on again A self.Healing thermal subject is triggered from overheating of windings Check the freedom of rotation of the impeller, disassemble the fan and inspect the stator windings for blackening Lubricate bearings, rewind the winding
The fan turns on, but the blades rotate slowly Lubricant thickened or developed in the bearberry bearings With insufficient lubrication of bearings when working, the fan makes an increased acoustic noise and the smell of burner may appear from the overheating of the winding of the electric motor It is necessary to disassemble the fan and grease the sliding bearings with machine oil
Mechanical wear of the electric motor bearings due to lack of lubrication. In this case, the vibration of the impeller is often observed regarding the center of rotation Shake the impeller relative to the center to the sides. If the backlash is more than 0.5 mm, then the bearing is worn out Replace the bearing new
The fan does not start, the blades do not rotate The cord is not inserted into the outlet Check Insert a cord fork into a socket
No voltage in the outlet Check the presence of voltage in the outlet using a serviceable electrical appliance Connect the fan to a serviceable outlet
The network cord is faulty Check with an external inspection fork and cord for mechanical damage, check the integrity of the cord wires with a multimeter In case of malfunction, replace the network fork or cord
The switch or speed switch is faulty. The battery was discharged in the control panel You need to open the fan and rush the circuit breaker by the multimeter. When the position is turned on, the resistance between the contacts of the switch should be zero In the event of a circuit breaker malfunction, replace it. If not at hand, then you can shorten the contacts of the circuit breaker, and turn off the fan removed the plug out of the outlet
The fan when turned on buzzes and heats up Jammed the rotor shaft due to the production or thickening lubrication Disassemble the fan, rinse the solvent and grease the bearings
The fan when turned on buzzes and heats up Blog of the launch winding or capacitor. Take the impeller with your hand, if you are ovar, then replace the codester or try to find the place of the start of the starting winding
Cliff of the rotor windings Check with an external examination of the winding for the presence of mechanical damage and local darkening, check the integrity of the windings with a multimeter If the winding of the winding could not be found by an external inspection, then it will be necessary to rewind it that it is economically impractical
The heat.Guide thermal guide from overheating of the electric motor due to its malfunction worked Check the integrity of the heat.Guide by the multimeter. His resistance should be zero. For verification in the absence of the device, its conclusions can be temporarily shabby If thermal guide is found, then replace it with good. If the new thermal forefront again blocks with the short operation of the fan, then the electric motor is faulty

For reliable operation of the fan, it is recommended to disassemble it before each season of operation and lubricate the bearings with machine oil. But no one does it, including me. They usually make grease when the blades stopped rotating or the fan began to make a lot of noise.

DIY plastic blades

Of the main materials, ABS plastic, a 3D-handle, which can be ordered on the Internet, as well as the factory impeller of the household fan will be required-from it the new model will be “drawn”. First you need to make templates of the main details. To do this, apply the impeller to the paper and describe with a pencil.

“Draw” the blades and the central part to which they will be attached. To make the details more durable, it is advisable to make them multi.Layer, as well as apply stiffeners on top. Last of all, a sleeve for “docking” with an engine shaft is made. It is attached inside the impeller on “stretch marks” from plastic.

replace, blades

After all the main parts have been glued, install the blades on the fan and pressed with a plastic nut. So simple and quickly you can make your own flap for a fan using a 3D handle. The step.By.Step process of manufacturing and assembling the impeller can be viewed in this video.

How to make your mouth blades with your own hands?

You are sitting at the computer, outside the window, there is no air conditioner. The hand is already tired of endlessly fan the newspaper, and sweat from the forehead drips to the keyboard. Familiar situation? If there is no extra money, a home.Made fan will help. To make it, no need to run to the store for details. Everything you need for blower is in the house. Do not know how to make a free fan at home? Follow the text!

How to change cooler fan blade || Broken fan blade || Telugu || Unlimited Josh Ideas

The last item can be lowered if you make a USB fan with your own hands. The computer has a voltage of 5 volts. You will need a cable to connect the printer, an old “mouse”, or any unnecessary device with a USB cord.

If you are a lover of self.Use, you probably have a useful trash in the house. Otherwise, you do not need to know how to make a fan with your own hands.

In a box with unnecessary spare parts, an electric motor was not found? You can make a fan from a motor from an old drive or a broken toy. Consider a few examples of how to make a mini fan from improvised materials.

Glue, cardboard, motor from the toy

For the manufacture of a small propeller, you will need a piece of corrugated cardboard 30 × 30 cm.

We glue the support in 2-3 layers, an area of ​​at least two palms. We make a rack for the engine in the form of a prism of 10-15 cm high. For cutting, we will use a clerical knife. We decide the design in the ruler.

How to make a mini fan is strong and stable? We will use a glue gun. No other glue will allow the connection as reliable.

Further the most difficult: propeller. The central sleeve is not necessary to make wood or plastic. Cut it out of the same cardboard.

We combine thermoclay, and as it can be thicker: the design should be monolithic. Blades can be made of thinner cardboard. Suitable packaging from an accessory for a mobile phone.

This is the most responsible element: the blades should be exactly the same in shape and weight. Otherwise, your propeller will vibrate during work and quickly fall apart.

Glue the blades (carefully) onto the cardboard sleeve, observing aerodynamics. The planes should be deployed 30–45 degrees in opposite directions. For simplicity of design, we collect a USB fan with our own hands with two blades. They are easier to lick, and with cooling such a propeller will cope no worse than a three.Lobed.

Trial launch and balancing

We make a hole in the very center of the sleeve (using the awl), put on the axis of the motor, carry out test inclusion. 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 a vibration, the propeller is easy to lick, just crawling the blades. After making sure that the propeller is spinning evenly, and blowing where it is required, we glue the motor on the rack. Do not regret glue!

replace, blades

Connect the USB cord with engine wires. Of course, it is better to do this with a soldering iron, but given the meager power. You can do with a simple scrap. The main thing is not to forget to insulate the connection using island or tape.

How to determine USB wire contacts

Any USB connector consists of 4 contacts. We are not interested in average, these are information wires. Food 5 volts is at extreme contacts. Swing in the illustration:

If you confuse polarity, nothing terrible will happen. Just the motor will spin in the wrong direction. How to determine the voltage of engine power? There is no need to look for the marking. If in the toy (where it was installed), power from three batteries (1 each.5 Volta). Then the engine is 5 volts. If from two batteries. It will not work for USB power.

Greenheck. How To Change Fan Blade Pitch

Compact disc

You do not know how to make an effective fan from CD? This is easier than it seems. We mark the disc for 8 sectors. Even number of blades is easier to assign if there is an axial beating.

Cut the blades with ordinary scissors. You can do this work using a construction knife, or pay the sector with a soldering iron. There is no big difference. If you inadvertently break CD, take a new.

Excess segments are broken out, the rest is given the aerodynamic form of the propeller. To do this, just heat the workpiece above the candle or with the help of a building hairdryer. If you are mistaken with geometry, you can always correct the situation with repeated heating. This is the advantage of crafts made from CD.

In the center of the structure we glue the thickening: any plastic fragment 5-10 mm. In it we drill a hole for planting on the shaft of the electric motor.

Where to get an electric motor

In this design, a drive from a disc is used. Food 5 volts, moderate speed. Most likely, you do not have a separately dusting on the shelf of the drive, it can be found in the system unit. No one uses discs anyway, you can safely disassemble it for spare parts.

Ceiling fan: device, varieties and features of application

For cooling air in the room, such a device has long been used. A ceiling fan. Many probably remember the general canteens, where without this device in the hot season it was simply not to do with. Use such a device in our time, though with some improvements and additions.

Device

Ceiling Household fan. A circuit scheme

  • An ordinary household fan works from a network with a voltage of 220V and a frequency of 50Hz. The rotation of the blades occurs using an electric motor, which is located in a decorative case of plastic or metal.
  • A conventional ceiling fan has three or six blades, which can be made of plastic, metal, wood.Fiber plate and wood, while having different colors or the applied pattern. Such a number of rotating elements provides the aerodynamic properties of the module and corresponds to its intended purpose. Air ventilation.
  • Sometimes you can find a fan with two or, in general ten to fifteen blades, but the aerodynamic properties of such devices are very low in favor of design. Such a fan can be considered rather as a decorative device.
  • The bracket is designed to attach the blade to the mobile part of the electric motor. Such components are made, as a rule, of metal.
  • To the ceiling, the fan ceiling module is usually attached only to the hook, which, in turn, can have a different device. The first option is when the hook is fixed on the plate, which is screwed to the ceiling and at the same time the J-shaped hairpin can rotate in different directions. The second option provides a hook with a thread, which is screwed either into the dowel or directly into the ceiling.
  • To adjust the distance of the blades from the ceiling, the fan ceiling module is equipped with a bar, which can be shortened to 0.25m or lengthened to 1.5m. For example, the ceiling fan MR 1 from the beginning of the bar to the end of the case has a size of 156cm. But in any case, we should not forget that the distance from the fan blades to the floor that can be allowed should be at least 230 cm.
  • Typically, there are two decorative caps on the fan. One from above, and the other from below. The upper cap covers the mounting device, and the bottom. The wires, the capacitors and the terminal box. There are also small decorative caps on the module that cover the bolts of fastening of brackets and blades.
  • Often there is a regulator on the fan housing that changes the direction of the air flow. Up or down (reversing fans). Such modules are still equipped with switches-switches, such as a lazy person, one of which is responsible for the actions of the blades, and the other for the lighting built into the fan.
  • Ventilation is carried out in three or five-speed mode, and these modes can be controlled either using a lace-lane or from a remote control for remote control. DU also allows you to control the light, which is built into the fan module.

Fans and scope varieties

  • The ventilation on the ceiling can serve both for the direct purpose and the decoration of the room. Modern ceiling fans make it possible to combine these two requirements and very often without prejudice to each other.

Three lamps are provided on the fan

  • Fans for ceilings can be divided into two categories. This is a fan with a lamp and those on which the lamps are not provided. The first category can be quite diverse, since the number of lamps can vary from one to twelve. At the same time, fluorescent, halogen or diode lamps can be used, and power and color from the remote control can be adjusted.
  • The use of fans on the ceiling is most often found not in everyday life, but in administrative buildings and medical institutions. Also, such a device is almost always in educational institutions and in public catering points.
  • At home, the ceiling fan is used in large rooms in the absence of air conditioning, and sometimes with it, using these devices alternately. Sometimes it is simply impossible to do without a fan because the air conditioned air can be contraindicated from a medical point of view (asthma).
  • In a slightly different way, ventilation in the stretch ceiling is carried out. There you can not install the usual module on a long rod. The priority is given to the built.In device. Exactly the same built.In fan can be used on any suspended ceiling. Thus, you can solve the requirement in the distance to the floor (230cm from floor to blades).

Recommendations. Sometimes the use of fans is regulated by regulatory documents. So in regions with an outer air temperature above 25 ° C for premises with a constant stay of people, it is necessary to install a fan.

Fans must be installed on the ceiling to increase the intensity of air movement, from 0.3 to 0.5 m/second. Requirements are installed by SNiP for household and administrative premises (from 2.09.04-87 p.P. 4.6).

Among the population there are rumors that the supposedly working ceiling fan is able to cut off the head of a person, but this statement causes only a smile. The power from the shock of the blade is so small that it is not even able to damage the skin on the arm or at least leave the hematoma. In fact, the use of such a device brings freshness to the room, moving air flows around the room.

How to make a powerful fan with your own hands

When it comes to powerful fans, you need to understand that they already need completely different engines. Starting from the engines of old fans, ending with other household appliances. Well suited:

The only thing you need to get into the voltage corridor that is required to power the motor. For example, for drills most often you need 18 volts. But for ventilation purposes, it will be enough to serve less than half of such a voltage. Even on 12 volts, fans work very loudly and extremely unstable due to the strong inertia of rotating blades.

Power for powerful electric motors should be done from the network. Therefore, you need to think about installing a power supply or connecting a charger. The electric circuit can be complicated by adding bulk bulbs, electronic clocks, radio, toggle switch or a fee for switching operating modes. But it is easier, of course, to limit yourself only to a fan with a button, if this is enough.

In any case, such homemade variations of fans-sampler are sometimes much better even purchased options. With proper ability, a very good thing can turn out, the real pride of the owner.

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