It is possible to create a homemade construction level, when creating light effects when designing a home disco, for an additional rear signal of cars, motorcycles, bicycles, etc.

The laser diode is a semiconductor crystal made in the form of a thin rectangular plate. The beam passes through the collecting lens and represents a thin line, when crossing the surface we see the point. To obtain a visible line, you can install a cylindrical lens before the laser beam. The refracted ray will look like a fan.

The proposed homemade can quickly and cheap even a novice radio amateur.

I made it from the 5MW laser, on the supply voltage of 3V with Aliexpress. Despite the small power of the laser emitter, it is necessary to comply with the elementary safety technique not to direct the beam.

The whole manufacturing process to view in the video:

List of tools and materials
Laser emitter 5MW, 3B (link to laser)
-screwdriver; scissors;
-Paller;
-kembrik; Foil textolite;
-Tweb batteries at1.5V;
-Contentive wires; Battery compartment housing with power button on a naked lamp;
- Spristor on 5Ω;
-Lodiodes with a transparent flask;
- Put fuss.

Step one. Production of a laser board.

From a small piece of foil textolite, we make a scarf for mounting a laser. A piece of tin solder to textolite, having previously bent it on the laser body. Then we insert the laser itself in the clamp (should come tightly). The beam outlet side of the beam solder the LED (if you have a glass transparent tube - you can use a piece of 5mm long) from the back of the board and fading the legs exhibit its position relative to the laser to get a bright and contrasting visible line. It remains to be placed with a laser in a suitable case. In the case of the battery compartment with a switch from a naked lantern, we make a rectangular window. To power this laser emitter, a voltage in 3 V. In the battery case, we set two batteries by 1.5 V. In place of the third battery, we establish our fee with a laser. We turn over the wires, respectively, two batteries and a 5 ohm resistor connect to a push button. If desired, the laser can be powered from the battery and use the down-converter board. I made a 2.8 volt voltage and a current of 15-18 mA to extend the life of the laser diode.

Step second. Production of construction level.
On the basis of this homemade, you can make a laser construction level. The first option is attaching the homemade housing to the industrial level (naturally it is necessary to accurately adjust the position of the beam). The second option to attach to a piece of polyfoam housing of the homemade laser, put this design into a container with water. The water level will always be parallel to the horizon. Laser line position to verify industrial levels. The farther from the surface is the laser of the longer the visible line.

This is the design of the day off. It was interesting to see the refraction of the laser beam with different lenses. How to apply this homemade the case of your choice. The process itself was, at least for me, is interesting. Make an independently such a timer forces beginner without high time and finance. And where to apply them already decide for themselves. A day off and 10 rubles went to all the work (a bag with lasers from Aliexpress 10pcs x 10p. \u003d 100r). I had the rest of the components.

When mentioning the laser, most people immediately remember episodes from fantastic films. However, such an invention has long and tightly entered our life and is not something fantastic. The laser found its application in many areas, ranging from medicine and production and ending with entertainment. Therefore, many becomes interesting if you can make a laser yourself.

Depending on the specifics and extended requirements, the lasers are completely different, both in size (ranging from pocket pointers and ending with dimensions with a football field) and by the capacity used by workers and other parameters. Of course, a powerful production ray is made independently at home is impossible, as it is not only technically complex devices, but also very capricious in service things. But the simple, but reliable and powerful laser can be logged from the usual DVD-RW drive.

Principle of operation

The word "laser" came to us from of English language "Laser", which is a reduction in the first letters of a much more complex name: Light Amplification by Stimulated Emission of Radiation and is literally translated as "enhancement of light by means of forced radiation." It can also be called an optical quantum generator. The types of lasers are very much, and the sphere of their use is extremely extensive.

The principle of its work is to transform one energy (light, chemical, electrical) into the energy of various radiation threads, that is, it contains a phenomenon of forced or induced radiation.

Conditionally, the principle of work displays the following drawing:

Materials required for work

When describing the basics of the laser, everything looks difficult and incomprehensible. In fact, make a laser with your own hands at home extremely simple. We will need some components and tools:

1. The most basic thing is that you need to create a laser, this is a DVD-RW drive, i.e. writing drive from a computer or player. The higher the recording speed, the more powerful it is the product itself. It is preferable to take actuators at a speed of 22x, since its power is the highest, about 300 MW. At the same time they differ in color: red, green, purple. As for the false Roms, they are too weak. It is also worth paying attention to the fact that after the manipulation with the drive, it will no longer work, therefore it is worth taking or a failed, but with a working laser, or such, to say goodbye to which it will not be sorry.
2. There is also a current stabilizer, although there is a desire to do without it. But it is worth knowing that all diodes (and laser is not an exception) "prefer" not tension, but current. The cheapest and preferred options are the pulse converter NCP1529 or the LM317 chip (KR142EN12 analog).
3. The output resistor is selected depending on the power current of the laser diode. Calculate it according to the formula: R \u003d I / 1.25, where i is the rated current of the laser.
4. Two capacitor: 0.1 μF and 100 μF.
5. Colimator or laser pointer.
6. ELEMENTS OF THE AAA standard.
7. Wires.
8. Tool: soldering iron, dumping, passatia, etc.

Removing a laser diode from DVD - drive

The main part that needs to be removed is a laser from a DVD drive. Make it easy, but it is worth knowing some nuances that will help avoid possible misunderstandings during operation.

The first thing is a DVD drive to disassemble to get to the carriage, on which laser diodes are located. One of them reads - it is too low. The second writing is exactly what you need to make a laser from the drive DVD.

On the carriage diode mounted on the radiator and reliably fastened. If it is not calculated to use another radiator, it is quite suitable and already existing. Consequently, you need to remove them together. Otherwise, it neatly cut off the legs at the entrance to the radiator.

Since the diodes are extremely sensitive to the statics, it will be worthwhile to protect them.. For this, thin wire you need to wind the legs of the laser diode.

It remains only to collect all the details together, and the rum itself is no longer needed.

Assembling laser device

To the converter, it is necessary to connect the diode extracted from the sidier, observing the polarity, since otherwise the laser diode will immediately fail and will become unsuitable for further use.

From the reverse side of the diode, a collimator is installed so that the light can be concentrated in one bundle. Although instead you can use a lens, or a lens that already contains a laser pointer. But in this case you will have to make adjustment to get the necessary focus.

On the other hand, the converter sold the wires connecting to the housing contacts where the batteries will be installed.

It will help to finish the laser from the DVD drive with their own hands the scheme:

When connecting all components is made, you can check the performance of the resulting device. If everything works, it remains the whole design to put in the case and secure there.

Housing homemade design

You can approach the manufacture of the housing in different ways. Excellent for these purposes will suit, for example, the case from the Chinese lantern. You can use the ready-made laser pointer housing. But optimal decision It may be homemade, from an aluminum profile.

Aluminum itself has low weight and, while perfectly referred to. It will conveniently be the whole design. It will also be comfortable to consolidate it. If necessary, you can always easily cut the desired piece or bend in accordance with the necessary parameters.

Safety and Testing

When all the works are completed, the time comes to test the resulting power laser. It is not recommended to do this in the room. Therefore, it is better to go outside into a deserted place. It should be remembered that the device made several hundred times more powerful than the usual laser pointerAnd this obliges it to use it with extreme caution. It is not worth directing the beam on people or animals, carefully ensure that the beam does not reflect and did not get into the eyes. When using the red beam of the laser, it is recommended to wear green glasses, it will significantly reduce the risk of vision damage in unforeseen cases. After all, even from the side of looking at the laser rays is not recommended.

It is not worth directing a laser beam on flammable or explosive objects and substances.

The created device with a properly configured lens may well cut polyethylene packages, burn on the tree, burst the balloons and even burn - a kind of battle laser. It is incredible that you can make from the DVD drive. Therefore, testing the manufactured device is always worth remembering the safety technique.

Laser cutter made by hand, come in handy in every home.

Of course, the homemade device will not be able to gain a greater power, which production devices have, but still some benefit from it can be obtained.

The most interesting thing is that it is possible to make a laser cutter with the help of old unnecessary items.

For example, with your own hands, make a laser device will allow the use of an old laser pointer.

In order for the process of creating a cutter to be promoted as quickly as possible, it is necessary to prepare the following items and tools:

• laser type pointer;
• flashlight on battery batteries;
• old CD / DVD-RW writing, you can have failed - you will need a drive with a laser;
• electrical and screwdriver kit.

The process for making a cutter with your own hands begins with the disassembly of the drive, where you need to get the device.

Extraction needs to be done at the maximum neat, while you have to show patience and be attentive. There are many different wires in the device with the almost identical structure.

Choosing a DVD drive, you need to take into account that it is writing, since it is this option that allows you to record with a laser.

The record is performed during the evaporation of a thin metal layer from the disk.

In the process of reading, the laser functions half its technical capabilities, slightly illuminating the disk.

In the process of dismantling the upper mounting element, the view will fall on the carriage with a laser that can move in several directions.

The carriage must be carefully removed, carefully remove the connectors and screws.

Then you can go to the removal of the red diode, due to it, there is a burning disk - it can be easily made with your own hands using an electrician. The extracted element should not shake, but even more so drop.

After the main detail of the future cutter is on the surface, you need to make a thoroughly thought out plan for assembly laser cutter.

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

This question can be solved by several methods.

To make a handmade cutter with a more or less high power, you need to get a diode in the pointer, after which it is possible to change it to an element extracted from the DVD drive.

Therefore, the laser pointer also disassemble carefully, as well as the drive of a writing DVD device.

The subject is spinning, then separated its body into two halves. Immediately on the surface it will be possible to see the item, which you need to replace with your own hands.

For this, the native diode from the pointer is removed and neatly replaced with more powerful, its reliable mount can be performed using glue.

It is possible to remove the old diode element immediately will not work immediately, so it can be hiding it gently with a knife tip, then slightly shake the pointer housing.

At the next stage of the manufacture of a laser cutter you need to make a housing for it.

For this purpose, a flashlight with rechargeable batteries will be useful, which will allow the laser cutter to get an electroatkuchka, acquire aesthetic appearance, and ease of use.

To do this, it is necessary to introduce a modified top of the former pointer to the lantern housing.

Then you need to connect to the diode charging, by means of a battery located in a flashlight. It is very important during the connection process to accurately establish polarity.

Before the flashlight is assembled, it is necessary to remove the glass and other extra elements of pointer, which can be a hindrance of the laser beam.

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

For comfortable handmade, all stages of work on the instrument must be strictly observed.

To this end, you need to check the reliability of fixation of all embedded elements, the correctness of the polarity and the flatness of the installation of the laser.

So, if all of the above assembly conditions are accurately observed, the cutter is ready for use.

But since the homemade manual device is endowed with low power, it is unlikely that a full-fledged laser cutter on metal will be obtained.

What will ideally be able to perform a cutter, it is to make holes in paper or plastic film.

But a laser fixture, made by your own hands, cannot be done, here it will be enough to harm the health of the body.

How can I enhance the homemade laser?

To make your own hands a more powerful laser cutter for metal work, you need to use devices from the following list:

• DVD-RW drive, no difference working or not;
• 100 PF and MF - capacitors;
• 2-5 ohm resistor;
• 3 pcs. rechargeable batteries;
• soldering iron, wires;
• collimator;
• steel lamp on LED elements.

Assembling a laser cutter for handmade occurs according to the following scheme.

With the use of these devices, the driver is assembled, subsequently, it will be able to provide a laser cutter with a certain power by the board.

In this case, no power cannot be connected to the dude directly, since the diode burns. It is also necessary to take into account that the diode must take a feedback not from the voltage, but from the current.

As a collimator, a hull is used, equipped with an optical lens, at the expense of which rays will accumulate.

This detail is easy to find in special storeThe main thing is that there is a groove in it for installing a laser diode. The price of this device is small, about $ 3-7.

By the way, the laser is assembled in the same way as the elevated cutter model.

A wire can also be used as an antistatic product, it is wrapped with a diode. After that, you can proceed to the layout of the drive device.

Before switching to a complete manual assembly of a laser cutter, you need to check the driver's performance.

The current power is measured using a multi-meter, for this take the remaining diode and carry out measurements with their own hands.

Taking into account the current speed, it is picking its power for a laser cutter. For example, in some variants of laser devices, the current will be 300-350 mA.

Others, more intense models, it is 500 mA, subject to the use of another drive device.

To homemade laser It looked more aesthetically, and they could be conveniently used, it is necessary for him a housing, a steel flashlight functioning on LEDs can be used.

As a rule, the mentioned device is endowed with compact sizes that will allow him to fit in his pocket. But in order to avoid pollution of the lenses, you need to purchase or sew a case in advance or sew your own hands.

Features of production laser cutters

Not everyone by pocket the price of a laser cutter for metal production type.

Such equipment is used for processing and cutting metal materials.

The principle of the laser cutter is built on the development of a powerful radiation tool, endowed with the evaporation property or blow the metal molten layer.

Such a production technology when working with different types Metal is capable of providing high quality cut.

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

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

The device of solid emitters is based on the use of specific varieties of glass or crystals as a working environment.

Here in an example, inexpensive installations operated on semiconductor lasers can be brought.

Fiber - their active medium operates due to the use of optical fibers.

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

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

Gas - working medium of the laser device combines carbon dioxide, nitric and helium gases.

Since the efficiency of the radiators 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 in the 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 minimum power Machines only wins from their analogues.

Diagram of driving operation

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

According to the guide rails of the device, the laser block can move 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 variants of laser machines have a desktop equipped with a drive mechanism and the property has navigated in different planes.

At the moment there are two options for controlling the drive mechanism.

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

The second option provides for simultaneous movement of the table and cutter.

At the same time, the first model of control compared with the second option is considered much easier. But the second model is still characterized by high performance.

General technical characteristic Cases considered is the need to introduce into the CNC block device, but then the price for assembling the instrument for handmade will be higher.

Each house there is an old technique that has become unusable. Someone throws it into a landfill, and some craftsmen try to apply it for any self-contained inventions. So an old laser pointer can be found decent application - it is possible to make a laser cutter with your own hands.

To make a real laser from innocuous baubles, you need to prepare the following items:

• laser pointer;
• lantern with battery batteries;
• old, it is not a working writing CD / DVD-RW. The main thing is that he has in stock drive with a working laser;
• set of screwdrivers and soldering iron. It is better to use a corporate cutter, but the usual one may come for inappropriate.

Making a laser cutter

First you need to remove the laser cutter from the drive. This work does not represent any difficulty, but you have to gain patience and maximum attention. Since there is contained a large number of Wires, they have the same structure. When choosing a drive, it is important to take into account the presence of a writing option, since it is in such a model that a laser can be recorded. The recording is performed during evaporation of a thinly applied metal layer from the disk itself. In the case when the laser is read on reading, it is used in prison, highlighting the disk.

When removing the upper fasteners, you can detect a carriage with a laser located in it, which is capable of moving in two directions. It should be carefully removed by unscrewing, there is a large number of detachable devices and screws, which are important to remove carefully. For further work, a red diode is needed, with which the burning is carried out. To extract it, a soldering iron will be needed, and you also need to remove fasteners with accuracy. It is important to note that an indispensable detail for the manufacture of a laser cutter cannot be shaken and drop in connection with this, removing the laser diode, it is recommended to be careful.

How the main element of the future model of the laser will be extracted, it is necessary to weigh everything carefully and come up with where to put it and how to connect the power to it, since it is necessary for a diode of a writing laser much more than for a diode from a laser pointer, and in this case you can use Several ways.

Next replaces the diode in the pointer. To create a powerful laser, the pointers must be retrieved by a native diode, it is necessary to install a similar one from the CD / DVD-RW drive. The pointer is dealt with the sequence. It must be cleaned and divided into two parts, the part is located on top to be replaced. The old diode is extracted and the required diode is installed in its place, which can be fixed with glue. There are cases when, when removing the old diode, difficulties may occur, in this situation you can use a knife and shake a little a little.

The next action will be the manufacture of a new case. In order for the future laser to be convenient to use, connect to it and to give it an impressive view you can apply the lantern case. The converted upper part of the laser pointer is installed in the flashlight and is supplied to it from the battery packs, which connects to the diode. It is important not to confuse the polarity of the power. Before assembling the flashlight, the glass and pieces of the pointer must be removed, as it will be bad to carry out the straight laser beam.

The last step is to prepare for use. Before connecting, it is necessary to check the strength of fixing the laser, correctly connecting the polarity of the wires and is smoothly installed.

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

Additional moments

You can make a more powerful laser. It will take:

• dVD-RW drive, you can not operate;
• capacitors 100 PF and 100 MF;
• resistor 2-5 ohms;
• three rechargeable batteries;
• wires with soldering iron;
• collimator;
• steel LED flashlight.

This is the uncomplicated set is completed for assembling the driver, which will remove the laser cutter with the required power. The current source to the dude cannot be connected directly, as it is instantly spoiled. It is also important to consider that the laser diode should be powered, but not the voltage.

The collimator is a housing equipped with a lens, thanks to which all rays converge into one narrow beam. Such adaptations are purchased in radio components stores. They are convenient because they are already equipped with a place to install a laser diode, and as for the cost, it is quite small than 200-500 rubles.

You can, of course, apply the housing 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 the heating of the case, and it will not be quite cooled.

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

In the manufacture, it is necessary to apply antistatic bracelets.

It is necessary to remove the statics from the laser diode, it is very sensitive. In the absence of bracelets, you can do with undergrades - you can wind a thin wire on the diode. Next is the driver.

Before assembling the entire device, the driver is checked. At the same time, it is necessary to connect a non-working or second diode and measure the force of the current to the multimeter. Considering the speed of the current, its power is important to pick up according to the standards. For many models, the current of 300-350 mA is applicable, and for more speeds, you can apply 500 mA, but a completely different driver must be used for this.

Of course, such a laser can collect any non-professional technician, but still for beauty and convenience, such a device is the most reasonable to build in a more aesthetic case, which it is possible to choose any taste. It will mostly be collected in the LED Lantern Corps of the LED, as its size is compact, only 10x4 cm. But still it is not necessary to wear such a device in your pocket, since the relevant authorities may make complaints. Such a device is best stored in a special casemer, in order to avoid dusting lenses.

It is important not to forget that the device is in its kind weapon, which is worth using with caution and cannot be directed to animals and people, as it is very dangerous and can harm health, the most dangerous is the direction of the eye. It is dangerous to give such devices to children.

The laser can be equipped with different devices, and then from the harmless toy there will be a rather powerful sight for weapons, both pneumatic and firearms.

Here are the uncomplicated tips on the manufacture of a laser cutter. A slightly improved similar structure, you can make cutters for cutting acrylic material, plywood and plastic, producing engraving.

Would you ever wanted to make a real laser? In fact, it is not as difficult as it may seem. You only need a DVD drive and a bit of girlfriend.

Let's deal with how to make a laser at home. What will you need?

• DVD drive with rewrite function;
• laser pointer;
• colimator to obtain a smooth beam of light;
• several screwdrivers;
• stationery knife;
• scissors for metal;
• soldering iron.

Course of action

We disassemble the DVD-drive and remove the upper panel from it. You are interested in the location of the carriage, because it is there that are guides. Unscrew the bolts and remove the carriage. Do not forget to disable all connectors!

We start the process of disassembling the carriage. It will have 2 diodes. One serves to read, the other is used for burning tracks - it is red. We need the last one.

Usually, this diode is screwed to the board with bolts that should be carefully unscrewed with a small scope. Check it with its performance by connecting to the battery. Gently remove the diode from the housing. Take a purchased collimator, make disassembly. Inside there is a laser diode. I clean it, in his place we put the one that was removed from the drive.

To dismantle, you can apply scolding. If the element is stubborn, it is necessary to apply a sharp knife. Delete this part should be carefully, trying not to cause harm to other components of the board.

The next step is the installation of the diode into the case. It must be glued, using heat-resistant glue. It is important to establish it in the same position, in which stood the previous one. Take a soldering iron, solder wires to an element with mandatory observance of polarity.

Introduced the turn processing laser pointer. We unscrew the lid, remove the components. It may be necessary to reflect the reflector. Make smooth it edges using a file. Do not forget to remove plexiglas.

Remove the batteries, and then insert the design collected earlier to the emitter. Next, we collect a laser pointer in the reverse order, but without using a plastic lens.

Latest strokes

Now you need to return the batteries to their former place and check the created device. Never induce the laser on yourself or people around you and animals. It does not differ in high power, but easily melts a polyethylene package or other stable material. The length of the beam will exceed 100 m, with its help at such a distance you can set fire to the match.

You do not need to collect a laser personally uncomfortable, special tools or things for this. It is important not to forget that this thing is not applicable as a toy. It is dangerous to direct it on the mirrors or other reflective surfaces. If you like to experiment, then this is a great way to create an interesting thing.