How to make a laser that burns. How to make a combat laser at home. Instructions for making a homemade laser How to make a do-it-yourself wooden pointer

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

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

Clear directionality – thanks to perfect directionality laser beam energy is focused at the point of impact with a minimum of losses,
Monochromatic - the wavelength of the laser beam is fixed, 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 amplify energy by several orders of magnitude,
Power - the above properties of laser beams provide focusing of energy of the highest density on the minimum area of \u200b\u200bthe material. This allows you to destroy or burn through any material in a microscopically small area.

Device and principles of operation

Any laser device consists of the following components:

energy source;
working body that produces energy;
an optoamplifier, a fiber-optic laser, a system of mirrors that amplify the radiation of the working body.

The laser beam creates pointwise heating and melting of the material, 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 service life.

To obtain even thin seams and remove vapors, the technique of blowing melt products from the laser impact zone with inert gases or compressed air is used.

Factory model lasers equipped with high quality materials can provide good indentation. But for home use they are too expensive.

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

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

Solid state. Compact and easy to use. The active element is a semiconductor crystal. Models with low power have a very affordable price.
Fiber. Glass fiber is used as the radiation and pumping element. The advantages of fiber laser cutters are high efficiency (up to 40%), long term operation and compactness. Since little heat is generated during operation, there is no need to install a cooling system. Can be made modular designs, allowing you to combine the power of several heads. The radiation is transmitted over 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 chemical properties gas (nitrogen, carbon dioxide, helium). With their help, you can cook and cut glass, rubber, polymers and metals with very high level thermal conductivity.

Homemade household laser

For execution repair work and manufacturing metal products often needed in everyday life laser cutting do-it-yourself metal. Therefore, home craftsmen have mastered the manufacture and successfully use hand-held laser devices.

In terms of manufacturing cost, a solid-state laser is more suitable for domestic needs.

Power homemade device, of course, cannot even be compared with production devices, but it is quite suitable for domestic use.

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

To make a simple device you will need:

laser pointer;
rechargeable flashlight;
writing CD / DVD-RW (an old and faulty one will do);
soldering iron, screwdrivers.

How to make a manual laser engraver

Manufacturing process of laser cutter

You need to remove the red diode from the computer drive, which burns the disc during recording. Please note that the drive must be exactly writing.

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

To remove the diode, it is necessary to unsolder the fasteners of the diode 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 violently.

The diode contained in the laser pointer is removed from the laser pointer, and a red diode from the disk drive is inserted in its place. The body of the pointer is disassembled into two halves. The old diode is shaken out by tucking it with a knife edge. Instead, a red diode is placed and fixed with glue.
It is easier and more convenient to use a flashlight as a laser cutter body. 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 the power supply from batteries it is important to strictly observe the polarity.

On last step check how securely all the elements of the laser are fixed, the wires are connected correctly, the polarity is observed and the laser is level.

The laser cutter is ready. Because of low power cannot be used on metal. But if you need a device that cuts paper, plastic, polyethylene and other similar materials, then this cutter is quite suitable.

How to increase the power of a metal cutting laser

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

You will need the following parts and devices:

writing CD / DVD-RW (an old or defective one will do), with a recording speed of more than 16x;
3.6 volt batteries - 3 pcs.;
100 pF and 100 mF capacitors;
resistance 2-5 ohms;
collimator (instead of a laser pointer);
steel LED lamp;
soldering iron and wires.

Do not connect a current source directly to the diode, otherwise it will burn out. The diode is powered by current, not voltage.

The beams 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 a laser diode is mounted.

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

To remove static from the diode, they are wound around it. Antistatic wrist straps can be used for the same purpose.

To check the operation of the driver, measure the current supplied to the diode with a multimeter. To do this, a non-working (or second) diode is connected to the device. For the work of the majority homemade 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 homemade case, it is better to use an LED flashlight. It is compact and convenient to use. In order not to get dirty lenses, the device is stored in a special case.

Important! The laser cutter is a kind of weapon, so you can not point it at people, animals and give it to children. It is not recommended to carry it in your pocket.

It should be noted that do-it-yourself laser cutting of thick workpieces is impossible, but it will cope with everyday tasks quite well.

The laser level or level is used in the field of construction and facing works for the purpose of precise marking on any type of surface. The procedure is easy and fast, which significantly saves time in the workflow. The tool may not even be used experienced master: simply fix the device on a support (floor, ceiling, wall) opposite from the marking surface, turn it on. On the surface where the marking takes place, a projection of the laser beam will appear horizontally and (and) vertically.

The cost of the presented device in various outlets is quite high. But, in the case of applying a certain instruction, showing accuracy and some patience, it is quite possible to make laser level with your own hands. This approach has a positive effect on saving financial resources that go to the construction and repair of various premises.

Device design features

The device is compact and ergonomic. It is easy to fit in your pocket, mounting suitcase or bag. The case is completed with fastening elements. They may be:

magnet;
fastening straps;
tripod.

The beam projected on the marking surface is built along the plane or along the direction. Construction levels, used to indicate a certain direction, give out a projection in the form of a point. Plane marking devices are equipped with a special kind of optical instrument that turns the beam into a straight line. Levels are divided into types:

rotational devices, due to rotation around their axis, are able to produce a clear line (used when pouring the floor and constructing ceilings);
positional levels consist of 2 laser radiation sources to create a visible plane (used during finishing works indoors);
self-leveling (they can emit up to 5 beams and are equipped with a sight in the form of a simple cross and pendulums located inside the device).

The price of the presented equipment is several times higher than the cost of the usual level based on liquid and air bubble.

Making a simple level from a laser type pointer

Of the entire list of elements of such a level, you only need to buy a pointer. The rest of the auxiliary parts can be made independently. The task of the presented process is to build a reliable fastener that will enable the device to rotate around an imaginary axis completely unhindered. The tool consists of the following parts:

laser pointer;
wooden beam (length - 0.5 meters, width and thickness - 25 × 25 mm, respectively);
cord intended for construction work;
drill for drilling holes;
support (a regular stick will do).

To assemble the equipment, it is enough to make simple steps described below.

The bar is drilled on both sides. As a result, neat holes are formed, which must be parallel to each other. One of the holes made will be used to securely fasten the pointer, and the construction cord will fit in the other.
The pointer is securely fixed in the hole and the rope is fixed, which makes it possible to install the device above the floor surface. The hole drilled specifically for the cord must be of the optimal diameter so that the cord can pass freely through it.
A rope is threaded into the hole that was prepared in advance and fixed as securely as possible.

The support must be fixed. Otherwise, it will not be possible to carry out the correct level adjustment. The pointer must be high power so that the beam can be clearly displayed on any surface. If the presented parameter is insufficient, the equipment will be comfortable to use only in a darkened room.

How to check the performance of a homemade level

Using a simple rope, the device is suspended from a support in the center of the room. The equipment is turned on, directed in the right direction and the required distance is noted along the length of the beam projection. After that, a special stick is installed, which ensures the convenience of marking.

After such important events, you can start using the device and direct it in any direction. If you leave the position of the stick unchanged, then the same height of the marks will be ensured. After marking with laser dots, they are connected with a building cord. Next, using a measuring meter, preferably a hard one, draw a marking line.

Level from a container with water and foam

You will need these items:

convenient capacity;
plaster or plasticine;
laser pointer;
Styrofoam.

Before proceeding on how to do laser level with your own hands from the presented details, it is necessary to monitor the cleanliness and dryness of the hands. If you ignore these rules, the materials will lose desired properties. Further, actions are performed that do not require particularly large material and time costs. All of them are described below.

A clean container (a large pot, bucket or basin made of any material) filled with water to the brim.
A laser-type pointer is attached to a prepared piece of foam. As a nozzle, you need to use a regular point. The fastening can be a dense elastic band, plasticine or a collar. The device must be mounted as evenly as possible, parallel to the mounting surface.
The height value required for marking is selected, and a container with water is installed there.
The pointer, fixed on the foam, is placed in the tank.
Turn on the pointer.
By changing the position of the device on the surface where the markup is made relative to the axis of the central view, points are indicated. They will be at the same level relative to the established horizon.

Items must be of high quality and durability. This will ensure the durability of the equipment. The presented design is far from ideal, but it gives fairly clear markup results. Due to this, such equipment is quite popular among budget or private builders.

Making a laser cross with your own hands

This tool is useful for various works facing type and installation of hinged furniture. For this reason, it is not only popular among professionals, but is often an integral element in the toolkit of the owner of a city apartment or private house. The following parts are required for the manufacture of the device:

laser type pointer;
tripod from a camera or video camera;
outdated player;
some unnecessary disks.

You will be required to follow the steps below.

A rectangular cross is made from the pointers, which is fixed on the drive from the player. This ensures free rotation of the tool around its axis.
Ensuring the free lifting of the device to the required height.
The discs are carefully glued together and installed on the drive from the player.
A cross of pointers is attached to the disks. You can use tape or other sticky material.

Advantages of a homemade tool

Despite the fact that such a tool cannot provide high accuracy, it is quite profitable to use it in everyday life. In any case, the markup will be more accurate, and the process itself is much simpler than when using a water level. It is for this reason that such equipment is in demand among domestic consumers. The positive characteristics of the tool include:

long beam length;
minimum error;
high sweep speed.

The use of equipment is fully justified for walls, floors, ceilings and other supports of this type with any kind of surface. An alternative scope includes markup of such objects:

personal plots;
fence structure;
facade finishing.

Ingenuity, accuracy and strict adherence to the above instructions will help to significantly save money and time. Before spending money on expensive equipment, a thrifty person should think about whether it is worth making the device on their own, saving money? Moreover, its quality and ease of use in everyday life corresponds to an expensive device.

Making a laser pointer with your own hands

Before you make an azure pointer, you will need to prepare materials in advance. Then the work will proceed quickly and without long interruptions. It's important to note that if you want to make a really powerful laser pointer, you'll need to find a non-working DVD burner. Other elements will also be needed.

Required additional materials:

chinese lantern
soldering iron
battery
button (from any radio device)
thin wire
capacitor for 100 microfarads and 10 picofarads
voltage stabilizer model KR1158EN3V
chip

Remove the optical element from the DVD drive. Having done this, you will see two laser diodes in it, you will need to unfasten not infrared, but DVD. After that, be sure to wrap its legs with wire, so you can avoid damaging it with static electricity.

Find 3 pins with reverse side DVD diode. The first is a +2.6 - 2.8 V output. The next is a minus, but the same voltage, while the third does not carry any charge.

Start putting together a diagram. Solder a non-polar capacitor to the laser diode. After that, you can remove the wire from its legs. Then solder the polar capacitor and voltage regulator, where the first contact is the output, the second is the common, and the third is the input. It is important to remember the positive polarity of the voltage in order not to damage the circuit.

Assemble the stabilizer and two capacitors together, then attach the button, battery and flashlight optics. After that, your product will be ready for use.

Now you know how to make a powerful laser pointer, as you can see, it's not difficult at all. The main thing is not to deviate from the recommendations, and if you want to make it out of wood, then the tips below will be useful to you.

We make a wooden pointer with our own hands

It is very easy to make a pointer out of wood. It takes no more than 30 minutes if you prepare everything you need in advance.

You will need:

plane
skin (small and large)
simple pencil
wooden lath made of durable wood 70 cm long and with a section of 2.5x2.5 cm

Take the rail and draw an octagon at both ends of it with a pencil, so that it cuts off all four corners on each side. In the resulting octagon, enter a circle, it should touch literally all of its sides.

Using a planer, remove from the rail along the entire length of the edge. After that, at the formed octagon, cut off each corner along the length of the pointer.

Walk in turn with a planer through all the corners of the hexagon. It is necessary to perform such actions until the rail alternately has a cylindrical shape.

At one end of the product, draw a horizontal and vertical axis, as a result, you will have a central point. Step back from it by about 5 mm and draw a circle, its diameter should be 1 cm. After that, the upper end of the pointer will be ready for you.

Process the workpiece with a planer so that it has constrictions. To make it easier to do this, mentally divide it into three equal parts vertically. In the second and third sections, the pointer should gradually taper towards the upper end.

Take a large skin and walk it along the entire pointer in order to achieve the maximum smooth surface. Then do the same, but with a fine sandpaper. Once this is done, coat your wooden pointer with varnish, either clear or tinted. Then leave it to dry completely for 12 hours. After that, you can use it for its intended purpose.

In every house there is an old worn-out technique. Someone throws it in a landfill, and some craftsmen try to use it for some homemade inventions. So the old laser pointer can be put to good use - it is possible to make a laser cutter with your own hands.

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

laser pointer;
flashlight with rechargeable batteries;
old, maybe not a working CD / DVD-RW writer. The main thing is that he has a drive with a working laser;
a set of screwdrivers and a soldering iron. It is better to use a branded cutter, but in the absence of a regular one, it may also work.

Making a laser cutter

First you need to remove the laser cutter from the drive. This work is not difficult, but you will have to be patient and pay maximum attention. Since it contains a large number of wires, they have the same structure. When choosing a drive, it is important to consider the presence of a writing option, since it is in this model that a laser can make recordings. Recording is done by evaporating a thin layer of metal from the disc itself. In the case when the laser works for reading, it is used at half strength, highlighting the disk.

When dismantling the top 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 are a large number of detachable devices and screws that are important to carefully remove. For further work, a red diode is needed, with which the 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 an indispensable part for the manufacture of a laser cutter cannot be shaken and dropped, therefore, it is recommended to be careful when removing the laser diode.

How will it be extracted main element future laser model, you need to carefully weigh everything and figure out where to place it and how to connect power to it, since a writing laser diode needs much more current than a diode from a laser pointer, and in this case you can use several methods.

Next, the diode in the pointer is replaced. For creating powerful laser the native diode must be removed from the pointer, in its place it is necessary to install a similar one from the CD / DVD-RW drive. The pointer is disassembled in sequence. It must 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 cases when it can 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 case. So that the future laser can be conveniently used, connect power to it and to give it an impressive look, you can use the flashlight case. The converted upper part of the laser pointer is installed into a flashlight and power is supplied to it from rechargeable batteries, which is connected to the diode. It is important not to reverse the polarity of the power supply. Before assembling the flashlight, the glass and parts of the pointer must be removed, as it will not conduct the direct path of the laser beam well.

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

After completing these simple steps, the laser cutter is ready for use. Such a laser can be used to burn through paper, polyethylene, to ignite matches. The scope can be extensive, everything will depend on the imagination.

Additional points

You can make a more powerful laser. For its manufacture you will need:

DVD-RW drive, can be in non-working condition;
capacitors 100 pF and 100 mF;
resistor 2-5 ohm;
three rechargeable batteries;
wires with a soldering iron;
collimator;
steel LED flashlight.

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

The collimator is a housing 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 a case from a pointer, but it will be difficult to attach a laser in it. These models are made from plastic material, which will cause the case to heat up and not cool enough.

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

During manufacture, antistatic wrist straps must be used.

This is necessary to remove static from the laser diode, it is very sensitive. In the absence of bracelets, you can get by with improvised means - you can wind a thin wire around the diode. Next comes the driver.

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 of 300-350 mA is applicable, and for faster ones, 500 mA can be used, but a completely different driver must be used for this.

Of course, such a laser can be assembled by any non-professional technician, but still for beauty and convenience similar device it is most reasonable to build 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 case 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 may make claims. Such a device is best stored in a special case to avoid dusting the lens.

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

laser pointer;
flashlight with rechargeable batteries;
old, maybe not a working CD / DVD-RW writer. The main thing is that he has a drive with a working laser;
a set of screwdrivers and a soldering iron. It is better to use a branded cutter, but in the absence of a regular one, it may also work.

Making a laser cutter

First you need to remove the laser cutter from the drive. This work is not difficult, but you will have to be patient and pay 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 this model that a laser can make recordings. Recording is done by evaporating a thin layer of metal from the disc itself. In the case when the laser works for reading, it is used at half strength, highlighting the disk.

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

Next, the diode in the pointer is replaced. To create a powerful laser pointer, the native diode must be removed, in its place it is necessary to install a similar one from the CD / DVD-RW drive. The pointer is disassembled in sequence. It must 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 cases when it can be difficult to remove the old diode, in this situation you can use a knife and shake the pointer a little.

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

Additional points

You can make a more powerful laser. For its manufacture you will need:

DVD-RW drive, can be in non-working condition;
capacitors 100 pF and 100 mF;
resistor 2-5 ohm;
three rechargeable batteries;
wires with a soldering iron;
collimator;
steel LED flashlight.

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

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

During manufacture, antistatic wrist straps must be used.

Of course, any non-professional technician can assemble such a laser, but nevertheless, for 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 case 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 may make claims. Such a device is best stored in a special case to avoid dusting the lens.

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

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

Here are some simple tips for making a laser cutter. Having slightly improved this design, it is possible to make cutters for cutting acrylic material, plywood and plastic, and to engrave.

Man has learned many technical inventions by observing natural phenomena, analyzing them and applying the acquired knowledge in the surrounding reality. So man got the ability to kindle a fire, created a wheel, learned to generate electricity, got control over a nuclear reaction.

Unlike all these inventions, the laser has no analogues in nature. Its emergence was associated solely with theoretical assumptions within the framework of emerging 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 describing the essence of the physical process to the first letters. In the Russian version, this process is called "amplification of light with the help of stimulated emission."

According to the principle of its operation, the laser is a quantum generator of photons. The essence of the phenomenon underlying it is that under the influence of energy in the form of a photon, an atom emits another photon, which is identical to the first one 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. Lasers used in the home (laser disc drives, laser printers) use semiconductor method stimulation of radiation under the action of an electric current.

The principle of operation consists in the passage of an air flow through the heater into the hot air gun tube and, having reached the set temperatures, it enters the part to be soldered through special nozzles.

In the event of a malfunction, the welding inverter can be repaired by hand. You can read repair tips.

In addition, a necessary component of any full-fledged laser is optical resonator, the function of which is to amplify the beam of light by reflecting it multiple times. For this purpose, mirrors are used in laser systems.

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, carry out complex calculations, and have a good material and technical base.

For example, laser machines that can cut metal are extremely hot and require extreme cooling measures, including the use of liquid nitrogen. In addition, devices based on the quantum principle are extremely capricious, require the finest tuning and do not tolerate even the slightest deviation from the required parameters.

Required Components for Assembly

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

Rewritable DVD-ROM (RW). It incorporates a red laser diode with a power 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 great speed records: they are more powerful.
Pulse NCP1529. The converter outputs 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 constant voltage at 3 V.
Collimator for obtaining an even beam of light. Now on sale are numerous laser modules from, including collimators.
Output lens from ROM.
Housing, for example, from a laser pointer or flashlight.
Wires.
Batteries 3.6 V.

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

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

Light a match from a distance.
Melt plastic bags and thin paper.
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 need to use such a device carefully: do not shine it into reflective surfaces (mirrors, glasses, reflectors) and, in general, be extremely careful - the beam can cause harm if it hits the eye even from a distance of one hundred meters.

Do-it-yourself laser on video

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

Attention! The laser power reaches up to 250 milliwatts. Before starting the experiment, take care of your safety and put on safety goggles (welder goggles). Never aim the laser beam at people or animals, especially at the eyes. The laser can injure a person.

In order to make a laser yourself, we need:

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

How to find out the power of a laser diode?

You can determine the laser power by the characteristics of the write speed of dual-layer discs:

1. Speed 10X, laser power 170-200 milliwatts.
2. Speed 16X, laser power 250-270 milliwatts.

Instruction. How to make a laser?

Step #1. Unscrew and open the lid. We release and take out the carriage (the structure of the drive may differ, but each drive has two guides along which the carriage moves) and disconnect all cables.

Step #2. Having freed the carriage, we proceed to unwind the screws and parts to free the diode itself. The drive can have two diode lasers:

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

The right diode (red) has a board attached to it, use a regular soldering iron to release the diode.

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

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

Powerful do-it-yourself laser

DIY laser circuit

It is very important to follow the basic safety rules. Firstly, when checking the operation of the device or when it is already fully assembled, in no case should you point it at the eyes, at other people or animals. Your laser will be so powerful that it can light a match or even a piece of paper. Secondly, follow our scheme and then your device will work for a long time and with high quality. Thirdly, do not let children play with it. And finally, store the assembled device in a safe place.

To assemble a laser at home, you will not need too much time and components. So, first you need a DVD-RW drive. It can be both working and non-working. It's not essential. But it is very important that it is a recording device, and not a conventional drive for playing discs. The write speed of the drive must be 16x. It is possible even higher. Next, you need to find a module with a lens, thanks to which the laser can be focused at one point. An old Chinese pointer may well be suitable for this. As a housing for the future laser, it is best to use an unnecessary steel lantern. The "stuffing" for it will be wires, batteries, resistors and capacitors. Also, do not forget to prepare a soldering iron - assembly will be impossible 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. You need to remove the optical part from the drive by disconnecting the cable. Then you will see a laser diode - it should be carefully removed from the case. Remember that a laser diode is extremely sensitive to temperature changes, especially 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 terminals. The one in the middle gives a minus. And one of the extreme - plus. You should take two finger batteries and connect to the diode removed from the case using a 5 ohm resistor. In order for the laser to light up, you need to connect the minus of the batteries to the middle terminal 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 accumulator. This is everyone's business.

In order for your device to assemble to a point when turned on, you can use an old Chinese pointer, replacing the laser from the pointer with the one you assembled. The whole structure can be neatly packed into the case. So it will look prettier and last longer. An unnecessary steel lantern can serve as a body. But it can also be almost any capacity. We choose a flashlight not only because it is more durable, but also because your laser will look much more presentable in it.

Thus, you yourself have seen that to assemble a sufficiently powerful laser at home, neither deep knowledge of science nor prohibitively expensive equipment is required. Now you can assemble the laser yourself and use it for its intended purpose.

Many people are aware of the possibilities of laser technologies 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 drive, a lighter or a flashlight.

Before at home, you need to collect all the necessary elements. First of all, you need to disassemble the DVD drive. To do this, all the screws that hold the top and bottom covers of the device are unscrewed. Next, the main cable is disconnected and the board is unscrewed. Protection of diodes and optics must be cracked. The next step is to remove the diode, for which pliers are usually used. In order for static electricity not to damage the diode, its legs must be tied with wire. Remove 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. As a power source, you can use finger batteries or a battery from a mobile phone.

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

In order to build a regular pocket laser, you can use an ordinary lighter. However, before you make a laser from a lighter, you need to know the construction technology. It is best to purchase a quality incendiary element. It needs to be disassembled, but the parts should not be thrown away, as they will still be useful in the design. If there is gas left in the lighter, it must be released. Then the insides must be machined with a drill with special nozzles. Inside the body of the lighter there is a diode from the drive, several resistors, a switch and a battery. All elements of the lighter must be installed in their places, 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 can make a laser from a flashlight, you need to take the laser block from the CD drive. In principle, the structure of a homemade laser in a flashlight does not differ 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 the stabilizer.

All the assembled filling must be placed in the body of the disassembled flashlight. Previously, not only the inner part is removed from the flashlight, but also the glass. After installing the laser unit, the glass is installed in place.