Many people know about the possibilities of laser technology and their benefits. They are used not only in industry, but also in cosmetology, medicine, everyday life, art and other branches of human life. However, not everyone knows how to make a laser at home. But it can be built from improvised materials. To do this, you will need a non-working DVD-ROM drive, a lighter or a flashlight.

Before at home, it is necessary to collect all the necessary elements. First of all, you need to disassemble the DVD drive. To do this, unscrew all the screws that hold the upper and lower cover of the device. Next, the main cable is disconnected and the board is unscrewed. The protection of diodes and optics must be cracked. The next step is to remove the diode, for which pliers are usually used. In order that static electricity does not damage the diode, its legs must be tied with wire. Take out the diode carefully so as not to break the legs.

Next, before making a laser at home, you need to make a driver for the laser, which is represented by a small circuit that regulates the power of the diode. The fact is that if the power is set incorrectly, then the diode can quickly fail. Finger batteries or a battery from a mobile phone can be used as a power source.

Before making a laser at home, it is necessary to take into account the fact that the burning effect is provided by optics. If it is not there, then the laser will simply shine. As optics, you can use a special lens from the same drive from which the diode was taken. To set focus correctly, you must use a laser pointer.

In order to build a conventional pocket laser, you can use a conventional lighter. However, before making a laser from a lighter, you need to find out the technology of the structure. The best thing is to get a high-quality incendiary element. It must be disassembled, but the details should not be thrown away, since they will still be useful in the design. If gas remains in the lighter, it must be discharged. Then the insides must be turned using a drill with special nozzles. Inside the lighter housing is a diode from the drive, several resistors, a switch and a battery. All elements of the lighter must be installed in their place, after which the button that used to light the flame will turn on the laser.

However, for the construction of the device, you can use not only a lighter, but also a flashlight. Before you make a laser from a flashlight, you need to take the laser unit from the CD drive. In principle, the structure of a homemade laser in a flashlight is no different from the laser device in a lighter. It is only necessary to take into account the power supply, which almost never exceeds 3 V, and it is also desirable to build an additional voltage regulator. It will increase the life. It is very important to consider the polarity of the diode and stabilizer.

All assembled stuffing must be placed in the body of the disassembled flashlight. Previously, not only the inside, but also the glass is removed from the flashlight. After installing the laser unit, the glass is replaced.

It is the most progressive, but also expensive technology. But with its help it is possible to achieve results that are beyond the power of other metal processing methods. The ability of laser beams to give any material the desired shape is truly unlimited.

The unique capabilities of the laser are based on the characteristics of:

• Clear focus - due to the ideal directivity of the laser beam, the energy is focused at the point of impact with a minimum of losses,
• Monochromaticity - the laser beam has a fixed wavelength, and the frequency is constant. This allows you to focus it with ordinary lenses,
• Coherence - laser beams have a high level of coherence, so their resonant vibrations increase energy by several orders of magnitude,
• Power - the above properties of laser beams provide the focus of energy of the highest density on the minimum area of \u200b\u200bthe material. This allows you to destroy or burn any material in a microscopically small area.

Device and principles of work

Any laser device consists of the following units:

• source of energy;
• working body that produces energy;
• optical amplifier, fiber-optic laser, a system of mirrors that enhance the radiation of the working body.

Using a laser beam, heating and melting of the material is pointwise created, and after prolonged exposure, its evaporation. As a result, the seam comes out with an uneven edge, the evaporating material is deposited on the optics, which reduces its life.

To obtain even thin seams and remove vapors using the technique of blowing inert gases or compressed air melt products from the laser exposure zone.

Factory laser models equipped with high quality materials can provide a good recess rate. But for domestic use they have too high a price.

Models made at home can cut into metal to a depth of 1-3 cm. This is enough to make, for example, parts for decorating gates or fences.

Depending on the technology used, there are 3 types of cutters:

• Solid state. Compact and easy to use. The active element is a semiconductor crystal. Models with low power have an affordable price.
• Fiber. Glass fiber is used as an element of radiation and pumping. The advantages of fiber laser cutters are high efficiency (up to 40%), long service life and compactness. Since little heat is generated during operation, there is no need to install a cooling system. Modular designs can be made to combine the power of several heads. The radiation is transmitted through a flexible optical fiber. The performance of such models is higher than solid-state ones, but their cost is more expensive.
• . These are inexpensive but powerful emitters based on the use of the chemical properties of gas (nitrogen, carbon dioxide, helium). With their help, you can cook and cut glass, rubber, polymers and metals with a very high level of thermal conductivity.

Homemade Laser

To perform repair work and the manufacture of metal products in everyday life, laser cutting of metal by yourself is often required. Therefore, home craftsmen have mastered the manufacture and successfully use hand-held laser devices.

At a manufacturing cost, a solid-state laser is more suitable for domestic needs.

The power of a home-made device, of course, can not even be compared with production devices, but it is quite suitable for domestic use.

How to assemble a laser using inexpensive parts and unnecessary items.

To make the simplest device you will need:

• laser pointer;
• rechargeable flashlight;
• cD / DVD-RW writer (old and malfunctioning will do);
• soldering iron, screwdrivers.

How to make a manual laser engraver

Laser Cutting Process

1. From the computer drive you need to remove the red diode, which burns the disc during recording. Please note that the drive must be writeable.

After dismantling the upper fasteners, remove the carriage with a laser. To do this, carefully remove the connectors and screws.

To remove the diode, it is necessary to unsolder the diode mounts and remove it. This must be done very carefully. The diode is very sensitive and can be easily damaged by dropping it or shaking it sharply.

1. The diode contained in it is removed from the laser pointer, and a red diode is inserted from the drive in its place. The body of the pointer is disassembled into two halves. The old diode is shaken out by tipping the tip of a knife. Instead, a red diode is placed and fixed with glue.
2. As a laser cutter body, it is easier and more convenient to use a flashlight. The upper fragment of the pointer with a new diode is inserted into it. The glass of the flashlight, which is an obstacle for the directed laser beam, and parts of the pointer must be removed.

At the stage of connecting the diode to battery power, it is important to clearly observe the polarity.

1. At the last stage, they check how securely all the laser elements are fixed, the wires are connected correctly, the polarity is observed, and the laser is level.

The laser cutter is ready. Due to its low power, it cannot be used in working with metal. But if you need a device that cuts paper, plastic, polyethylene and other similar materials, then this cutter is quite suitable.

How to strengthen laser power for metal cutting

You can make a more powerful laser for cutting metal with your own hands, equipping it with a driver assembled from several parts. Through the board, the torch provides the necessary power.

The following parts and devices will be needed:

1. cD / DVD-RW burner (old or failed), with a write speed of more than 16x;
2. 3.6 volt batteries - 3 pcs.;
3. 100 pF and 100 mF capacitors;
4. resistance 2-5 Ohms;
5. collimator (instead of a laser pointer);
6. steel LED flashlight;
7. soldering iron and wires.

The current source cannot be connected directly to the diode, otherwise it will burn. The diode takes charge from the current, not from the voltage.

The rays are focused into a thin beam using a collimator. It is used instead of a laser pointer.

Sold in an electrical store. This part has a socket where the laser diode is mounted.

The assembly of the laser cutter is the same as the model described above.

To remove the static from the diode, wrap around it. For the same purpose, you can use antistatic bracelets.

To check the operation of the driver, measure the strength of the current supplied to the diode with a multimeter. For this, a non-working (or second) diode is connected to the device. For most home-made devices, a current of 300-350 mA is sufficient.

If you need a more powerful laser, the indicator can be increased, but not more than 500 mA.

As a case for homemade, it is better to use a LED flashlight. It is compact and convenient to use. To prevent the lenses from getting dirty, the device is stored in a special case.

Important! The laser cutter is a kind of weapon, so you can not direct it at people, animals and give into the hands of children. Carrying it in your pocket is not recommended.

It should be noted that laser cutting with your own hands of thick workpieces is impossible, but he can cope with everyday tasks.

Many hams at least once in their life wanted to make a laser with their own hands. It was once believed that it was possible to assemble it only in scientific laboratories. Yes, this is so, if we talk about huge laser systems. However, it is possible to assemble a laser simpler, which at the same time will also be quite powerful. The idea seems very complicated, but in reality everything is not at all difficult. In our video article, we will talk about how you can assemble your own laser at home.

DIY laser

DIY laser circuit

It is very important to observe basic safety precautions. Firstly, when checking the operation of the device or when it will already be completely assembled, in no case should you direct it into the eyes, at other people or animals. Your laser will turn out so powerful that it can ignite a match or even a sheet of paper. Secondly, follow our scheme and then your device will work for a long time and efficiently. Thirdly, do not let children play with him. Finally, keep the assembled device in a safe place.

To assemble the laser at home, you will not need too much time and accessories. So, first you need a DVD-RW drive. He can be both a worker and a non-worker. This is not important. But it is very important that this is a recording device, and not a regular drive for playing discs. Drive write speed should be 16x. It is possible and higher. Next, you need to find a module with a lens, thanks to which the laser can focus at one point. For this, the old Chinese pointer may well come up. It is best to use an unnecessary steel flashlight as the body of the future laser. The “filling” for him will be wires, batteries, resistors and capacitors. Also do not forget to prepare a soldering iron - assembly will not be possible without it. Now let's see how to assemble a laser from the components described above.

DIY laser circuit

The first thing to do is disassemble the DVD drive. From the drive you need to remove the optical part by disconnecting the loop. Then you will see a laser diode - it should be carefully removed from the housing. Remember that the laser diode is extremely sensitive to temperature changes, especially to cold. Until you install the diode in the future laser, it is best to rewind the diode leads with a thin wire.

Most often, laser diodes have three outputs. The one in the middle gives a minus. And one of the extremes is a plus. You should take two finger-type batteries and connect to the diode removed from the housing with a 5 ohm resistor. In order for the laser to light up, you need to connect the minus batteries to the middle output of the diode, and the plus to one of the extreme ones. Now you can assemble the laser emitter circuit. By the way, you can power the laser not only from batteries, but also from the battery. This is everyone’s business.

So that when you turn on your device going to a point, you can use the old Chinese pointer, replacing the laser from the pointer with the one you assembled. The entire structure can be neatly packaged in a housing. So it will look prettier and be stored longer. An unnecessary steel flashlight may serve as the body. But also it can be practically any capacity. We choose a flashlight not only because it is stronger, but also because your laser will look much more presentable in it.

Thus, you yourself were convinced that to assemble a sufficiently powerful laser at home, you do not need any deep knowledge in science, or prohibitively expensive equipment. Now you can assemble the laser yourself and use it for its intended purpose.

MOST POWERFUL LASER ON YOUTUBE 10000 mW! SWORD OF THE JEDI!

HOW TO MAKE A CUTTING LASER FROM A DVD DRIVE

Is it possible, and how to make a laser at home, with your own hands?  Which of the male population, no matter whether boys or adults, had already dreamed once about collecting their own "laser sword", like the heroes of the "Jedi" in the movies? Remember laser pointers that have long gone out of fashion, their power, of course, is unlikely to impress anyone. But this, of course, does not mean that they cannot serve you in the end. Of course, a real, laser sword will not work out of them, but a laser of some power can very well turn out. To make a laser at home, You will need the following items and tools:

• soldering iron wires
• drive from a DVD with a working laser (it’s easy to buy a cheap broken DVD on the market if there isn’t such a house)
• flashlight (small, with two finger batteries)

Many people know about the possibilities of laser technology and their benefits. They are used not only in industry, but also in cosmetology, medicine, everyday life, art and other branches of human life. However, not everyone knows how to make a laser at home. But it can be built from improvised materials. To do this, you will need a non-working DVD-ROM drive, a lighter or a flashlight.

Before at home, it is necessary to collect all the necessary elements. First of all, you need to disassemble the DVD drive. To do this, unscrew all the screws that hold the upper and lower cover of the device. Next, the main cable is disconnected and the board is unscrewed. The protection of diodes and optics must be cracked. The next step is to remove the diode, for which pliers are usually used. In order that static electricity does not damage the diode, its legs must be tied with wire. Take out the diode carefully so as not to break the legs.

Next, before making a laser at home, you need to make a driver for the laser, which is represented by a small circuit that regulates the power of the diode. The fact is that if the power is set incorrectly, then the diode can quickly fail. Finger batteries or a battery from a mobile phone can be used as a power source.

Before making a laser at home, it is necessary to take into account the fact that the burning effect is provided by optics. If it is not there, then the laser will simply shine. As optics, you can use a special lens from the same drive from which the diode was taken. To set focus correctly, you must use a laser pointer.

In order to build a conventional pocket laser, you can use a conventional lighter. However, before making a laser from a lighter, you need to find out the technology of the structure. The best thing is to get a high-quality incendiary element. It must be disassembled, but the details should not be thrown away, since they will still be useful in the design. If gas remains in the lighter, it must be discharged. Then the insides must be turned using a drill with special nozzles. Inside the lighter housing is a diode from the drive, several resistors, a switch and a battery. All elements of the lighter must be installed in their place, after which the button that used to light the flame will turn on the laser.

However, for the construction of the device, you can use not only a lighter, but also a flashlight. Before you make a laser from a flashlight, you need to take the laser unit from the CD drive. In principle, the structure of a homemade laser in a flashlight is no different from the laser device in a lighter. It is only necessary to take into account the power supply, which almost never exceeds 3 V, and it is also desirable to build an additional voltage regulator. It will increase the life. It is very important to consider the polarity of the diode and stabilizer.

All assembled stuffing must be placed in the body of the disassembled flashlight. Previously, not only the inside, but also the glass is removed from the flashlight. After installing the laser unit, the glass is replaced.

Which teenagers and most adults, male, do not dream of assembling their own laser sword? Laser pointers have long gone out of fashion, their power is unlikely to impress anyone. However, this does not mean that they will not serve you in the end. A laser sword will not work out of them, but a quite powerful laser will work.

Instruction manual

To make a laser at home, you will need a laser pointer, a DVD drive with a working laser, a flashlight, wires and a soldering iron. You can buy a broken DVD on the radio market, if there is none on the farm.

At the first stage, you need to remove the laser diode from the DVD. This is a long and painstaking process. When you open the DVD, you can easily find a carriage that moves along two guides. You need to untwist the carriage carefully. You will have many screws in your way, you need to remove them without haste, since the laser diode does not tolerate shaking and shock. When you remove it from the carriage body, hold it carefully and carefully.

The second stage is the replacement in the laser pointer of her native diode with an extract from the drive. This is necessary to make the laser more powerful. The fact is that inside the pointer is a low-power laser diode, while in a DVD laser a class higher. Turn the laser pointer into two parts. The diode is installed at the top. You need to get a native diode and emitter. After that, you need to install a diode from DVD in the upper case. It is best to put it on an adhesive basis.

A DIY laser cutter comes in handy in every home.

In this case, it is necessary to take into account the following points: how best to place the diode, how to connect it to a power source, because the diode of the writing device requires more electricity than for the main element of the pointer.

This issue can be solved by several methods.

Therefore, the laser pointer is disassembled as carefully as the drive of a DVD writer.

The item is untwisted, then its body is divided into two halves. Immediately on the surface you can see the part, which you need to replace with your own hands.

To do this, the native diode is removed from the pointer and neatly replaced with a more powerful one, its reliable fastening can be performed using glue.

It’s possible that you won’t be able to remove the old diode element right away, so you can gently pick it up with the tip of a knife, then shake the pointer case slightly.

At the next stage of manufacturing a laser cutter, you need to make a body for it.

A flashlight with rechargeable batteries is useful for this purpose, which will allow the laser cutter to receive power supply, acquire an aesthetic appearance, and ease of use.

To do this, you need to implement a modified upper part of the former pointer into the flashlight body with your own hands.

Then you need to connect the charging to the diode, using the battery located in the flashlight. It is very important to establish the exact polarity during the connection process.

Before the flashlight is assembled, it is necessary to remove the glass and other excess pointer elements that may interfere with the laser beam.

At the final stage, the laser cutter is prepared for use.

The depth of processing of materials depends on the type of laser system and the characteristics of the processed materials.

Today, three types of lasers are used: solid-state, fiber, and gas.

The device of solid-state emitters is based on the use of specific grades of glass or crystals as the working medium.

Here, an example is the low-cost installations operating on semiconductor lasers.

Fiber - their active medium functions through the use of optical fibers.

This type of device is a modification of solid-state emitters, but according to experts, a fiber laser successfully displaces its analogues from the field of metalworking.

At the same time, optical fibers are the basis not only of the cutter, but also of the engraving machine.

Gas - the working environment of the laser device combines carbon dioxide, nitrogen and helium gases.

Since the efficiency of the emitters under consideration is not higher than 20%, they are used for cutting and welding of polymer, rubber and glass materials, as well as metal with a high degree of thermal conductivity.

Here, for example, you can take a metal cutter manufactured by Hans, the use of a laser device allows you to cut copper, brass and aluminum, in this case, the minimum power of machines only wins over its counterparts.

Drive operation diagram

Only a desktop laser can be operated from the drive; this type of device is a portal-console machine.

The laser unit can move along the guide rails of the device both vertically and horizontally.

As an alternative to the portal device, a tablet model of the mechanism was made; its cutter moves only horizontally.

Other existing versions of laser machines have a desktop equipped with a drive mechanism and endowed with the ability to move in different planes.

There are currently two options for controlling the drive mechanism.

The first ensures the movement of the workpiece due to the operation of the table drive, or the movement of the torch is performed due to the functioning of the laser.

The second option involves the simultaneous movement of the table and cutter.

Moreover, the first control model is considered much simpler than the second option. But the second model is still characterized by high performance.

A common technical characteristic of the cases considered is the need to introduce an CNC block into the device, but then the price for assembling a manual device will become higher.

HELLO, DIMONOVS !!!

Today, I will tell you how to make a powerful laser pointer at home.

For this, we need 17 things:
1- faulty (dead) DVD drive, 16-22X speed (the higher the speed, the more powerful the laser is in it)
  PRICE-50-300R
2- cheap Chinese flashlight (3 batteries)

PRICE-50R
3- cheap double-barrel laser pointer (laser pointer + LED flashlight)

[
  PRICE-50R
4- soldering iron, power 40W (W), voltage 220V (V) with a thin tip.
5- solder fusible (type POS60-POS61), pine rosin.
6- a piece of one-sided fiberglass with dimensions of 35X10mm
7- ferric chloride (sold in radio stores) price-80-100R
8- tool (tweezers, magnifier, small screwdrivers, pliers, long-nose pliers, etc.)
9- these are the terminal petals

(sold at any electric store) cost from 10-35Р
10- tube of super glue
11- alcohol (can be found in the pharmacy)
12- laser printer
13- page of any glossy magazine (necessarily glossy, smooth. You can use photo paper)
14- electric iron (we take it at home. We do not see it with mom, sister, grandmother, wife)
15- radio components (you can add some from the dead drive itself, in particular the Schottky diode, resistors, capacitors)
list of parts and their denomination (ALL SMD DETAILS, i.e. for

In each house there is an old worn-out equipment. Someone throws it in a landfill, and some craftsmen try to use it for some improvised inventions. So you can find a worthy application for the old laser pointer - you can make a laser cutter with your own hands.

To make a real laser from a harmless bauble, you need to prepare the following items:

• laser pointer;
• flashlight with rechargeable batteries;
• old, maybe not working CD / DVD-RW writer. The main thing is that he has a drive with a working laser;
• screwdriver set and soldering iron. It is better to use a proprietary cutter, but in the absence of a regular cutter, too.

Laser Cutting Machine

First you need to remove the laser cutter from the drive. This work is not difficult, but you will have to have patience and maximum attention. Since it contains a large number of wires, their structure is the same. When choosing a drive, it is important to consider the presence of a writing option, since it is in such a model that the laser can record. Recording is made by evaporation of a thinly applied layer of metal from the disc itself. In the case when the laser is working for reading, it is used half-power, highlighting the disk.

When dismantling the upper fasteners, you can find a carriage with a laser located in it, which is able to move in two directions. It should be carefully removed by unscrewing, there is a large number of detachable devices and screws that are important to carefully remove. For further work, a red diode is needed, through which burning is carried out. To remove it, you will need a soldering iron, and you also need to carefully remove the fasteners. It is important to note that the indispensable part for the manufacture of a laser cutter must not be shaken and dropped, therefore, caution is recommended when removing the laser diode.

As the main element of the future laser model will be extracted, you need to carefully weigh everything and figure out where to put it and how to connect the power to it, since the writing laser diode needs much more current than the laser pointer diode, in which case you can use several ways.

Next, the diode in the pointer is replaced. To create a powerful laser, the pointer must be removed native diode, in its place must be installed similar to the CD / DVD-RW drive. The pointer is disassembled in sequence.  It should be untwisted and divided into two parts, on top is the part that needs to be replaced. The old diode is removed and the required diode is installed in its place, which can be fixed with glue. There are times when it may be difficult to remove the old diode, in this situation you can use a knife and shake the pointer a little.

The next step will be the manufacture of a new building. So that the future laser can be conveniently used, connect power to it and to give it an impressive appearance, you can use the flashlight body. The converted upper part of the laser pointer is installed in the flashlight and supplied with battery power, which is connected to the diode. It is important not to reverse the polarity of the power. Before assembling the flashlight, the glass and parts of the pointer must be removed, since it will not conduct the direct beam of the laser beam well.

The final step is preparation for use. Before connecting, it is necessary to check the strength of the laser fastening, the correct connection of the polarity of the wires and whether the laser is level.

After these simple actions, the laser cutter is ready for use. Such a laser can be used for burning paper, polyethylene, for firing matches. The scope can be extensive, everything will depend on the imagination.

Additional points

You can make a more powerful laser. To make it you will need:

• dVD-RW drive, can be inoperative;
• 100 pF and 100 mF capacitors;
• 2-5 ohm resistor;
• three rechargeable batteries;
• wires with a soldering iron;
• collimator;
• steel LED flashlight.

This is a straightforward kit that comes with a driver assembly that will use the board to bring the laser cutter to the required power. The current source cannot be directly connected to the diode, as it will instantly deteriorate. It is also important to consider that the diode for the laser must be powered by current, but not voltage.

A collimator is a body equipped with a lens, thanks to which all the rays converge into one narrow beam. Such devices are purchased at radio parts stores. They are convenient in that they already have a place for installing a laser diode, and as for the cost, it is quite small only 200-500 rubles.

You can, of course, use the body from the pointer, but in it the laser will be difficult to attach. Such models are made of plastic material, and this will lead to heating of the case, and it will not be sufficiently cooled.

The manufacturing principle is similar to the previous one, since in this case a laser diode from a DVD-RW drive is also used.

At production it is necessary to apply antistatic bracelets.

This is necessary to remove the static from the laser diode, it is very sensitive. In the absence of bracelets, you can do it with improvised means - a thin wire can be wound around the diode. Next, the driver is going to.

Before assembling the entire device, the operation of the driver is checked. In this case, it is necessary to connect a non-working or second diode and measure the strength of the supplied current with a multimeter. Given the speed of the current, it is important to select its strength according to the norms. For many models, a current strength of 300-350 mA is applicable, and for faster models, 500 mA can also be used, but a completely different driver must be used for this.

Of course, any unprofessional technician can assemble such a laser, but nevertheless, for the sake of beauty and convenience, it is most reasonable to build such a device in a more aesthetic case, and which one to use can be chosen for every taste. It will be most practical to assemble it in the body of an LED flashlight, since its dimensions are compact, only 10x4 cm. But still you do not need to carry such a device in your pocket, as the relevant authorities can make complaints. Such a device is best stored in a special case, in order to avoid dusting the lens.

It is important not to forget that the device is a weapon of its kind, which should be used with caution and should not be directed at animals and people, since it is very dangerous and can be harmful to health, the most dangerous is directing to the eyes. It is dangerous to give such devices to children.

The laser can be equipped with various devices, and then a rather powerful sight for weapons, both pneumatic and firearms, comes out of a harmless toy.

Here are some simple laser cutter tips. Having slightly improved this design, you can make cutters for cutting acrylic material, plywood and plastic, and engraving.

A man learned many technical inventions, observing natural phenomena, analyzing them and applying the knowledge gained in the surrounding reality. So a person got the ability to light a fire, created a wheel, learned how to generate electricity, gained control of a nuclear reaction.

Unlike all these inventions, the laser has no analogues in nature. Its appearance was associated exclusively with theoretical assumptions in the framework of nascent quantum physics. The existence of the principle that formed the basis of the laser was predicted at the beginning of the 20th century by the greatest scientist Albert Einstein.

The word "laser" appeared as a result of the reduction of five words that describe the essence of the physical process to the first letters. In the Russian version, this process is called "amplification of light using induced radiation."

By the principle of its operation, the laser is a quantum photon generator. The essence of the phenomenon underlying it is that under the action of energy in the form of a photon, an atom emits another photon, which is identical to the first in the direction of motion, its phase and polarization. As a result, the emitted light is amplified.

This phenomenon is impossible under conditions of thermodynamic equilibrium. Various methods are used to create induced radiation: electrical, chemical, gas, and others. Home-use lasers (laser disk drives, laser printers) use semiconductor method  stimulation of radiation under the influence of electric current.

The principle of operation is the passage of air flow through the heater into the hot air gun tube and, having reached the set temperatures, it falls through special nozzles onto the soldered part.

If a malfunction occurs, the welding inverter can be repaired by yourself. Repair tips can be read.

In addition, a necessary component of any high-grade laser is optical cavitywhose function is to amplify a beam of light through its multiple reflection. For this purpose, mirrors are used in laser installations.

It should be said that creating a real powerful laser with your own hands at home is unrealistic. For this, it is necessary to have special knowledge, conduct complex calculations, have a good material and technical base.

For example, laser systems that can cut metal are extremely hot and require extreme cooling measures, including the use of liquid nitrogen. In addition, devices operating on the basis of the quantum principle are extremely capricious, require very fine tuning, and do not tolerate even the slightest deviations from the required parameters.

Necessary components for assembly

To assemble a laser circuit with your own hands you will need:

• DVD-ROM with Rewrite Function (RW). It incorporates a red laser diode with a capacity of 300 mW. You can use laser diodes from BLU-RAY-ROM-RW - they emit violet light with a power of 150 mW. For our purposes, the best ROMs are those that have a higher write speed: they are more powerful.
• Pulse NCP1529. The converter delivers a current of 1A, stabilizes the voltage in the range of 0.9-3.9 V. These indicators are ideal for our laser diode, which requires a constant voltage of 3 V.
• A collimator for an even beam of light. Numerous laser modules from, including collimators, are now on sale.
• The output lens from the ROM.
• The case, for example, from a laser pointer or a flashlight.
• Wires.
• 3.6V batteries

To connect the parts you will need to determine which cable is phase, and where zero and ground. This will help a tool such as.

In this way, the simplest laser can be assembled. What can make such a makeshift "light amplifier":

• Light a match in the distance.
• Melt plastic bags and tissue paper.
• To emit a beam at a distance of more than 100 meters.

Such a laser is dangerous: it will not burn skin or clothing, but it can damage the eyes.

Therefore, you should use such a device carefully: do not shine it on reflective surfaces (mirrors, glasses, reflectors) and, on the whole, be extremely accurate - the beam can be harmful if it gets into the eye even from a distance of one hundred meters.

DIY laser on video

Have you decided to do something incredible using simple details? The laser in our time is not considered a novelty, but to make it at home is not difficult. We will tell you how to make a laser yourself using a drive to read discs and a regular flashlight.

Attention! Laser power reaches up to 250 milliwatts. Before starting the experiment, take care of your safety and wear safety glasses (welder's safety glasses). Never direct the laser beam at people or animals, especially in the eyes. Laser can injure a person.

In order to make the laser yourself, we need:

1. A device for burning DVD discs.
2. Laser pointer AixiZ (you can take another).
3. A screwdriver.
4. Flashlight.

How to find out the power of a laser diode?

1. Speed \u200b\u200b10X, laser power 170-200 MilliWatts.
2. Speed \u200b\u200b16X, laser power 250-270 MilliWatts.

Instruction How to make a laser?

Step number 2.  Having freed the carriage, we proceed to untwist the screws and parts to release the diode itself. The drive can have two diode lasers:

1. To read a disc (infrared diode).
2. To record a disc (red diode).

To the desired diode (red), the board is attached, use a conventional soldering iron to release the diode.

Step number 3.  After a short process, we should get a diode in this form.

Many hams at least once in their life wanted to make a laser with their own hands. It was once believed that it was possible to assemble it only in scientific laboratories. Yes, this is so, if we talk about huge laser systems. However, it is possible to assemble a laser simpler, which at the same time will also be quite powerful. The idea seems very complicated, but in reality everything is not at all difficult. In our video article, we will talk about how you can assemble your own laser at home.

DIY laser

It is very important to observe basic safety precautions. Firstly, when checking the operation of the device or when it will already be completely assembled, in no case should you direct it into the eyes, at other people or animals. Your laser will turn out so powerful that it can ignite a match or even a sheet of paper. Secondly, follow our scheme and then your device will work for a long time and efficiently. Thirdly, do not let children play with him. Finally, keep the assembled device in a safe place.

To assemble the laser at home, you will not need too much time and accessories. So, first you need a DVD-RW drive. He can be both a worker and a non-worker. This is not important. But it is very important that this is a recording device, and not a regular drive for playing discs. Drive write speed should be 16x. It is possible and higher. Next, you need to find a module with a lens, thanks to which the laser can focus at one point. For this, the old Chinese pointer may well come up. It is best to use an unnecessary steel flashlight as the body of the future laser. The “filling” for him will be wires, batteries, resistors and capacitors. Also do not forget to prepare a soldering iron - assembly will not be possible without it. Now let's see how to assemble a laser from the components described above.

DIY laser circuit

The first thing to do is disassemble the DVD drive. From the drive you need to remove the optical part by disconnecting the loop. Then you will see a laser diode - it should be carefully removed from the housing. Remember that the laser diode is extremely sensitive to temperature changes, especially to cold. Until you install the diode in the future laser, it is best to rewind the diode leads with a thin wire.

Most often, laser diodes have three outputs. The one in the middle gives a minus. And one of the extremes is a plus. You should take two finger-type batteries and connect to the diode removed from the housing with a 5 ohm resistor. In order for the laser to light up, you need to connect the minus batteries to the middle output of the diode, and plus to one of the extreme ones. Now you can assemble the laser emitter circuit. By the way, you can power the laser not only from batteries, but also from the battery. This is everyone’s business.

So that when you turn on your device going to a point, you can use the old Chinese pointer, replacing the laser from the pointer with the one you assembled. The entire structure can be neatly packaged in a housing. So it will look prettier and be stored longer. An unnecessary steel flashlight may serve as the body. But also it can be practically any capacity. We choose a flashlight not only because it is stronger, but also because your laser will look much more presentable in it.

Thus, you yourself were convinced that to assemble a sufficiently powerful laser at home, you do not need any deep knowledge in science, or prohibitively expensive equipment. Now you can assemble the laser yourself and use it for its intended purpose.

Many people know about the possibilities of laser technology and their benefits. They are used not only in industry, but also in cosmetology, medicine, everyday life, art and other branches of human life. However, not everyone knows how to make a laser at home. But it can be built from improvised materials. To do this, you will need a non-working DVD-ROM drive, a lighter or a flashlight.

Before at home, it is necessary to collect all the necessary elements. First of all, you need to disassemble the DVD drive. To do this, unscrew all the screws that hold the upper and lower cover of the device. Next, the main cable is disconnected and the board is unscrewed. The protection of diodes and optics must be cracked. The next step is to remove the diode, for which pliers are usually used. In order that static electricity does not damage the diode, its legs must be tied with wire. Take out the diode carefully so as not to break the legs.

Next, before making a laser at home, you need to make a driver for the laser, which is represented by a small circuit that regulates the power of the diode. The fact is that if the power is set incorrectly, then the diode can quickly fail. Finger batteries or a battery from a mobile phone can be used as a power source.

Before making a laser at home, it is necessary to take into account the fact that the burning effect is provided by optics. If it is not there, then the laser will simply shine. As optics, you can use a special lens from the same drive from which the diode was taken. To set focus correctly, you must use a laser pointer.

In order to build a conventional pocket laser, you can use a conventional lighter. However, before making a laser from a lighter, you need to find out the technology of the structure. The best thing is to get a high-quality incendiary element. It must be disassembled, but the details should not be thrown away, since they will still be useful in the design. If gas remains in the lighter, it must be discharged. Then the insides must be turned using a drill with special nozzles. Inside the lighter housing is a diode from the drive, several resistors, a switch and a battery. All elements of the lighter must be installed in their place, after which the button that used to light the flame will turn on the laser.

However, for the construction of the device, you can use not only a lighter, but also a flashlight. Before you make a laser from a flashlight, you need to take the laser unit from the CD drive. In principle, the structure of a homemade laser in a flashlight is no different from the laser device in a lighter. It is only necessary to take into account the power supply, which almost never exceeds 3 V, and it is also desirable to build an additional voltage regulator. It will increase the life. It is very important to consider the polarity of the diode and stabilizer.

All assembled stuffing must be placed in the body of the disassembled flashlight. Previously, not only the inside, but also the glass is removed from the flashlight. After installing the laser unit, the glass is replaced.