How to make a simple polishing machine and what is needed for this? Mini polishing machine or how to get rid of scratches on glass Do it yourself mini polishing machine.

They always try to make their cars look nice and presentable. For this, it is not always enough to just wash the car well. Correct and high-quality polishing will help you to make the car attractive and bright.

In this video, you can see a lesson on proper polishing.

For polishing we need:
- shampoo;
- water;
- bucket;
- polishing machine;
- rough corrugated washcloth;
- hose;
- solvent 646;
- napkins;
- a washcloth.

First of all, we need to wash the car well. Be sure to remove sand from all hard-to-reach places, it will be problematic to do this with your hands and a washcloth, so take a hose, make a bigger pressure and wash out all excess. Sand should be removed from all crevices and moldings so that it does not fall on the washcloth and does not settle on the washcloth when polishing the car.


After the car is dry, we need to get rid of the bitumen. It is on every car and most often settles from the very bottom. To remove bitumen stains we will use 646 thinner.


We put on protective gloves, moisten the napkin with a solvent and begin to wash the bitumen from the surface of the car.

If you see rusty spots on the body, then you don't need to try to paint over them or do something else with them. This is when braking dust bounces off the pads. Be sure to run a rag and solvent through all moldings.


If there is damage on the body and there are scratches, then do not rush to repaint them. Try to remove with solvent, 70% of such stains can be removed with a cloth moistened with 646 solvent.

Now we take a polishing machine with a corrugated washcloth attachment.


We will apply Fast Cut PLUS Crepe Paste 50417 to this washcloth. The bottle must be with a green cork.

The worst thing about a car is the edges (metal folds), if you flap the wrong way, you can burn off the paint, and the car will have to be repainted at your expense. When we have an edging, the washcloth should slide off it, but in no case run over it. Because if she starts to run over him, then the paste accumulates on the edge and tries to get through the narrowest place. As a result, the varnish burns out.


Apply the paste to a washcloth, not very much. We start polishing by lightly sprinkling the surface with water. Smear a little paste over the surface and turn on the machine at low speed. When polishing it is important not to overheat the surface of the varnish itself, but at the same time to heat it to the desired temperature in order to polish. Therefore, when polishing, always check the surface for how hot it is. If she starts to burn her hand, it's time to stop and let her cool down.

Your car is painted, lacquered, looked perfect and ready to go. But for a flawless result, it is worthwhile to stay in the workshop for a short while, so that polishing the machine becomes the final stage and allows the freshly applied paintwork (paintwork) to become mirror-like.

To many amateur painters, this step will seem redundant. Like, the paint is applied perfectly, smudges are eliminated, the coating is varnished, protects the paintwork from damage and other troubles. What else is needed for happiness? Some put up cars for sale, others drive themselves.

Necessity

However, it should be noted that polishing the car allows you to:

  • prevent paintwork scratches;
  • eliminate defects;
  • close varnish microcracks;
  • increase the reflectivity of the body surface.

Materials and tools

To start the final stage of the entire cycle of painting work, you need to prepare:

  • pieces of rubber of different density;
  • grinder set;
  • a set of polishing wheels (soft, dense);
  • bag;
  • bucket (basin);
  • an old toothbrush;
  • medium-width scotch tape;
  • sandpaper (grit from 1500 to 3000);
  • a set of polishing pastes (abrasive, medium abrasive, non-abrasive).

Technology

Car polishing consists of the following stages:

Self-polishing of the car should start with the preparation of the workplace - the garage. Whoever painted a car in this room already has prepared lighting, consisting of a pair of powerful searchlights of 1,000 W each, as well as a portable lamp for working in inaccessible places. It should be as clean as possible, without dust, and the floor should be moistened (everything is as before painting). There is nothing superfluous in the room so that you can freely open the car doors.

Preparing a car is a visit to a car wash or washing yourself. Alternatively, wash the body piece by piece, just before polishing.

It is equally important to know how long after painting you can polish your car in the garage. The time interval depends on several factors at which the painting and drying was carried out:

  • ambient temperature;
  • humidity;
  • density, thickness of paintwork.

At a constant temperature in the range of 18-25 degrees Celsius, at moderate humidity, it is enough to withstand three days. You can check the readiness of the box body for the next cycle of work as follows: in an inconspicuous place, press your finger on the paintwork. If there are no traces left, then the coating is completely dry and you can start working.

To fully master the technology and know how to properly polish a car, you need to master grinding. At this stage, it is performed like this. With the help of sandpaper, the entire surface of the part is rubbed. The number must be selected depending on the resulting shagreen paintwork. It is better to remove a large one with a cloth Р1500 - 2500, on a small one you can use Р2000, Р2500

Grinding

It is important to decide which method will be used for grinding: wet or dry. If there are no restrictions on access to water, it is better to use the first option. It consists in the constant washing of paper and body parts from traces of varnish, paint and provides a sufficient degree of elasticity and softness.

But to verify the result, you have to wait until the surface dries. When using dry grinding, you have to deal with constant wear and tear of the emery. Small pores are constantly clogged with dust, which requires frequent material changes. Workshop experts are more likely to use the first sanding option as more efficient.

Before polishing the car in the garage, it must be carefully wiped down. In the end zones, it is enough to perform a couple of movements so as not to rub the edges of the body part around the perimeter. Everything needs to be done carefully and smoothly. It is better to start work from the upper section - the roof. You can move on to the next fragment after the glossy effect disappears. When performing work, the varnish layer must not be scratched with a grain of sand.

Nuances of the process

This stage begins with the application of an abrasive paste over a small area. You can try to smear the polishing wheel itself (the one that is lighter). The machine is set to the minimum mode, using a dial located at the handle.

To determine if the surface of the metal is sufficiently polished, you need to compare it with other parts. After processing, it should shine more strongly than after varnishing (evenly and without matte baldness).

Using the same technology, the following two pastes are used: first, medium abrasive, then non-abrasive.

Here are some tips on how to properly polish your car:

  1. The body can be slightly moistened with water so that the paste does not dry out.
  2. Clean the wheel from adhering paste to achieve maximum polishing efficiency.
  3. If the surface to be treated overheats, then it is time to move on to a new area, and then, if necessary, return to the cooled one.
  4. If you do not set low speed, the applied paste will scatter to the sides. After working at low revs, you can add a little, but not exceed 2500 per minute.
  5. Before using the non-abrasive paste, the surface is washed out and the circle is changed to another.
  6. During operation with a grinder, you need to monitor the cord so that it does not come into contact with the surface of the body, otherwise scratches cannot be avoided. Experts recommend throwing the power cable over your shoulder or using a partner.
  7. If the machine is not held perpendicular to the surface, but at an angle, stains will form.
  8. It is unacceptable to touch the plastic elements with a circle. They can be irreversibly damaged by exposure to abrasive paste and hot rotating wheels.
  9. It is enough to walk along the ends slightly, but do not cling to the edges of the corners, so as not to damage the circle.

Now you know how a car is polished after painting with your own hands. To complete the work completely, the car is thoroughly washed. This is where the presence of a toothbrush comes in handy. This extraordinary tool will help you remove lumps of paste from crevices and corners. After a few hours of hard work, the result will be obtained.

After the car is washed, you can start hand rubbing with finishing paste. It is applied to the surface with a dry, lint-free cloth.

Before polishing the car after painting, many motorists have doubts about the need for this time-consuming and somewhat costly process. However, it is worth listening to the opinion of experts who recommend polishing.

The procedure for using polish can be repeated. After all, depending on the brand, it can withstand from 4-8 to 8-12 visits to the car wash. When re-applying the composition, grinding is not required.

The information will be useful for novice painters and motorists.

Expert: Andrey Volkov.

Even an inexpensive car can make a good impression if it is well polished using modern means. But how is it correct? This operation is important not only from an aesthetic point of view, as it simultaneously protects the surface and prolongs the service life. Constant movements, negative weather conditions, temperature changes, road dust negatively affect the paint of the car, scratches and chips appear over time. Therefore, a properly selected polish will provide a reliable protective coating and change the appearance for the better. It is important that all the work can be done independently.

Types of polishes

It is necessary to choose the tool for the car, which will make it possible not only to give a special shine, but also to hide small defects. You need to study the characteristics well and choose the appropriate type.

A polish is an emulsion or paste with a long shelf life. Its composition, depending on the purpose, includes synthetic and natural ingredients.

  • For machining, abrasive and reducing compounds and a polishing machine are usually used. This method helps to quickly remove a thin layer of varnish and remove minor scratches. In addition, it is possible to return the original color that the car had.
  • Protective silicone and polymer polishes do not contain abrasive particles, since they can be used to mask abrasions and create an additional layer that will protect the car from ultraviolet radiation, aggressive acids and climatic influences. They can be applied by hand.

Synthetic and Teflon protective types withstand up to 10 washes, while wax-based ones are washed off much faster.

The color of the machine determines the choice of the desired polish with the appropriate shade. The kit often comes with a soft sponge, but you will need other tools to polish your car.



Preparatory stage

Experts disagree on how long the entire process will take. Some people think that an hour is enough, especially using a polishing machine and attachments. Others say that this simple job can take up to 10-12 hours to polish an entire car.

However, you need to carefully prepare both the car and the garage, and have all the necessary tools on hand. It would not hurt to watch the video to avoid unnecessary mistakes.

  • The car should be thoroughly washed and any tar or oil stains removed with a solvent.
  • The garage or room must have good lighting and everything must be cleaned so that no dust and dirt particles can get in. More space can be freed up to fit from either side.
  • In addition to polish, they use sandpaper, polishing foam and woolen circles, a professional typewriter, adhesive tape and rubber gloves.

In order for the applied layer to hold well, it is imperative to degrease the car. For this, alcohol-containing substances or deep cleaning agents are used, which are easy to choose in car dealerships.

The better the preparation is, the faster the car owner will be able to polish himself.

Main stages

Today this operation can be divided into two types, since they use different types of polishes.

  1. Restorative or needed to remove the resulting scuffs, scratches and microcracks. For this, there are special tools and sandpaper. At the very beginning, you need to properly remove a thin layer of varnish, and then proceed to leveling the defects. It is better to use an abrasive paste no more than ten times, otherwise all the varnish will be erased.
  2. Protective polish can be used more frequently and can be done two to five to six times a year. The polish should be applied to the restored coating immediately, without waiting for small particles to enter. This will fill all the pores and microcracks, give a richer shade of color and shine.

If there is no special tool, then you can use a conventional drill or grinder, as well as a polishing pad, which is a nozzle. During friction, the last will quickly warm up the paintwork, and the polish particles will fill all defects.

The process itself usually does not cause any particular difficulties, and the video will allow you to learn how to do it correctly.

To restore, you need to choose a polish of at least several types.

  • Coarse or fine abrasive is applied, starting from the front bumper or hood of a car, on small square areas, forty or fifty centimeters in size. The amount should not exceed 10-20 grams in order to dry faster.
  • After a minute, you need to use a soft cloth to grind the paste. Soon you can see the appearance of a shiny film on the car body.
  • A polishing machine with a round nozzle or a drill is also used. You should work at a low speed, trying not to press hard so as not to damage the varnish layer. The movements can be circular or left to right, up and down. It is necessary to distribute everything evenly and remove the remaining paste. Then proceed to processing the next section.
  • After the end of the first stage, it is the turn of soft polishing. The paste is evenly distributed in a circular motion over the area, and after a little drying, when it starts to turn white, a machine operating at medium speed will help to polish everything.
  • The final touch will be done after applying the protective composition. We'll have to repeat the already familiar procedure.

The sponge and polishing wheel should be thoroughly rinsed and dried after three to four areas have been treated.

If at the very beginning a low speed is used, then it gradually increases to medium speed. The main task is to avoid the appearance of clots or lumps, as they are immediately removed, therefore the pressure force must be correctly calculated.


Polishing after painting

In the case when the car has been painted, polishing will be somewhat more difficult. It is better to carry it out not earlier than after three to four weeks, since the varnish applied to the car body should harden well.

Before painting, plastic elements are pasted over with tape, a protective uniform and a respirator will be required. The rest of the process is similar to the above: degreasing is performed, then processing with fine-grained and waterproof emery paper, then an abrasive paste and a polishing machine are used.

The surface must be constantly moistened with water and all paint and varnish debris must be removed immediately. The video will help you get an idea of \u200b\u200ball the stages of work, and certain skills will allow you to polish yourself. Protective compounds are best applied more frequently, for example every two months. Remember to wash your car regularly to keep its glossy, shiny look and finish longer.

The shiny new car at the showroom is breathtaking. But in fact, you can give it this look at home. Just 2-3 hours of exciting work - and you can safely be proud of yourself and your car.

Before you start polishing your car, you need to prepare it for this. The car should be thoroughly washed, cleaned of dirt and dust. Then wipe dry. If there are stains that have not been washed, then you can use "White Spirit" to remove them. For high-quality polishing, maximum cleanliness of the body is required. To work, you need a polishing machine and a couple of wheels for polishing: larger and smaller. If you don't have a typewriter, you can use a drill. However, a very strong vibration comes from it, which negatively affects the well-being of the hands. You should also purchase a special polishing paste. It is desirable that it be of three types: with a large abrasive, with a fine and non-abrasive paste.


In the process of polishing the car is divided into several zones and work with each in turn. They start by applying a paste with a coarse abrasive. A small amount is applied to the coarse polishing wheel to prevent premature drying. About 1 tsp. on a square 40 * 40 cm. Further, without turning on the machine, smear the paste, then polish, starting at a low speed of the machine, go to the higher. You need to polish first horizontally, then vertically. Repeat this procedure several times.


After polishing the entire body with a coarse paste, rub it with a polishing sponge, removing the remaining paste. Then the same work is done using a paste with a fine abrasive. It is applied similarly to the previous one. The polishing wheel remains the same.


After the second stage of polishing, you should also wipe the body with a polishing sponge and remove the remaining paste. The sponge should be rinsed in warm water after treating three areas of the vehicle. Next, a non-abrasive paste is applied to a dry soft cloth and covered with it on individual parts of the car. When the paste starts to turn white, take a soft polishing wheel and work with a polishing machine.


The final step is to apply a paste that protects the polish. The final layer of paste should be renewed at least once every two months. Then you can maintain the shine of the car without significant labor costs.


Car polishing is a lengthy process that requires an investment of strength and energy. But washing and home polishing can be many times better than in a service, where such a pleasure is not cheap.

Car owners are often faced with questions of how to polish a car and how to do it on their own in a garage. After all, a brilliant car, attracting enthusiastic glances from others by its appearance, is everyone's dream. But the micro-scratches and cracks that form over time on the paintwork make it faded. Therefore, sooner or later, the owner who loves his car has a desire to polish it.

What is polishing

You need to understand that polishing a car body is a process of processing it according to a certain technology, the training of which is advisable to go under the guidance of a specialist or at least get acquainted with it in depth. To carry it out, in addition to skills, you always need to have a special set for polishing, you need to know what kind of tool you need and what consumables you need. Polishing is desirable, and in many cases unavoidable for a number of reasons and is carried out in order to:

  • the return of shine to painted surfaces that have aged under the influence of climatic factors;
  • removal of small scratches, fine dust particles, irregularities or paint smudges;
  • elimination of dust and restoration of "gloss" at the boundaries of repair of a small part of the body by painting using the "stain" method to make the latter invisible.

Polishing also has a preventive value. The paintwork is easily and quickly covered with microcracks; when gravel hits it, chips are formed on it. The metal of the body becomes available for corrosive substances, causing the corrosion process initially hidden from the eye. Subsequently, its focus grows and as a result, when it is discovered, it is already necessary to invest a lot of money to eliminate it and restore the integrity of the paintwork.

Thus, to polish his car in time for the owner is not only to return the outer shine to him, but also to save himself from unplanned expenses in the future.

Polishing steps

Being technologically consistent, the polishing process can be divided into several types, depending on its depth and stages (cycles). Polishing can be:

  • Protective, aimed at extending the life of the paint and varnish coating in its original form, easy renewal of gloss, reducing the negative impact of external influences on it;
  • restorative, used to restore the natural beauty of faded paint, remove small scratches, haze from any aggressive liquids, irregularities after local repair, etc.;
  • complex, carried out to achieve all of the above goals.

Without the preparatory procedures that need to be carried out to polish your car (achieving its maximum cleanliness, creating the necessary external conditions, etc.), directly polishing the body can be divided into the following stages.

  1. Partial removal of the top layer of paint with a fine abrasive paper. It is used only if there is severe damage to the surface. If the damage is minor, this action is not performed.
  2. using abrasive pastes.
  3. Treatment with non-abrasive polishing agents to give a shine to the body and protect its painted surfaces.

To complete most of the above preparatory actions, as well as achieve the final goals at each of the listed stages, you need to have the appropriate equipment for polishing the car and consumables.

Polishing products

The polishing kit required for the performer necessarily includes polishing agents that differ in their characteristics depending on each of the stages. In addition, when restoring polishing, you need to have a special skin.

A polish is a complex composite mixture consisting of silicone resins, various waxes, abrasive particles, resistant to separation and in a pasty state or in the form of an emulsion. The composition may also include chemical compounds, pigment and insoluble dyes, which enhance the color of the body paint, fill in scuffs and scratches.

When applied to a car, the product actually functions as the outer layer of the paintwork, reducing the effect of ultraviolet rays on it, as well as salts and acids that are abundant in urban and natural environments. Available in a wide range of products, polishes can be differentiated into several types by consistency.

Types of polishing paste Material features
Pasty Thick in consistency, which makes it possible to use them on vertically and horizontally oriented surfaces. They are usually more expensive than other types, but have a great effect, returning the paint to its previous color depth.
Liquid They are safer for paintwork. Even with their repeated use, unlike the previous type of funds, critical thinning and wear of the coating does not occur.
Aerosol They are maximally adapted for use by non-professionals, but due to the presence of gas and solvent in the cans, the volume of the polish itself in them is very insignificant, which leads to an increase in the cost of such a product.

By their types, composition, polishes differ as abrasive, cleaning-reducing agents, synthetic, silicone and polymer. All of them have their own specifics of application and application to the machine, validity period, as well as a different price range, depending on the composition and type.

To choose means for polishing a car in each specific case, regardless of whether polishing is carried out in a car service or independently, this is the prerogative of the car owner himself, who finds it difficult to understand their palette. In this connection, it is better to consult with a specialist who has passed the necessary training.

How to polish a car?

Car polishing in workshops costs a lot of money, because there it is performed by professionals, but it is quite possible to properly polish the car at home. This is done both by hand and using a polishing machine. Polishing after painting is especially important, because in fact it is the final stage of work on the appearance of the car.

The choice of polish

To achieve an even glossy finish, it is important to pay special attention to the quality of the materials. A polish is a pasty substance or emulsion with a complex composition. These are mainly silicone, silicone resins and various waxes. In addition, the polish may contain special elements to fill in scratches and irregularities on the surface of the car.

Polishes are divided into 3 types:

  • highly abrasive - it is better to use if there are clearly visible scratches, not recommended for frequent use and polishing the entire surface of a car;
  • medium abrasive - hide small roughness of the paintwork, can be used for the entire surface of the body;
  • universal - fill in scratches, level the surface, create a protective layer.

Polishes may be intended for manual or only machine surface treatment. Consider these features when choosing a tool, and then proceed to prepare the car body.

Car preparation

  1. Carefully wipe off all dirt from the surface of the vehicle. Stubborn stains such as tar can be cleaned with thinner or kerosene.
  2. Wash your car with water and a special shampoo. Your task is to clean the body surface from dust and dirt as much as possible.
  3. Dry the paint and wipe with a soft cloth.

It is better to carry out the polishing procedure in a garage or other room: this will protect the car from the effects of adverse weather conditions.

How to polish a car by hand

To polish a car without using a special machine, in addition to polish, you will need sponges or pieces of foam rubber, as well as a clean rag.

How to polish a car with a polishing machine

The body is polished with a machine like this:

The finished look of the car will be given by absolutely transparent and shiny glass. Read about the methods of polishing the latter in our article -.

When work with a wooden surface comes to an end, the stage of finishing sanding begins. To perform grinding without burrs, scratches, beautifully round off sharp corners of any part, you need to use a wood sander. This tool will help to perform professional grinding, even for a beginner who first took the device in hand. If you wish, you can make a sander yourself, using only available tools.

The industry produces several types of machines that differ both structurally and in purpose. Here are the main ones:

  • Eccentric or orbital, in this case the sole of the instrument simultaneously rotates around its axis and in a certain orbit. It turns out that each time it passes in a slightly different place, so scratches and burrs are rubbed down more and more with each pass.

  • Vibration model. Here the work sole performs reciprocating movements with a frequency of about 20,000 movements per minute. It is due to these movements that grinding occurs.
  • Angle grinder, which is popularly called "grinder". This tool is used for rough processing of parts, large logs, etc. For processing, abrasive wheels of the required grain size are used.
  • A belt sander that is usually used for working on large surfaces. Structurally, it consists of rollers driven by an electric motor, on which an emery tape is put on.

Making a belt sander with your own hands + (Video)

It is not at all difficult to make a belt sander yourself, you must complete the following steps:

  • select suitable materials and parts;
  • make a reliable basis for fixing the tool;
  • install a suitable countertop;
  • fix the vertical posts with a tensioner and a drum;
  • mount the motor and drums;
  • fasten the sanding tape.

To process fairly large parts and elements, it is necessary to make a large copy of a serial grinder. For example, if you take an electric motor with a power of 2 kW or more powerful with a rotor speed of 1500 rpm, then the gearbox can be omitted. The power of such an engine is quite enough to rotate a drum about 20 cm in diameter and process parts about 2 m.

You can also use an electric motor from an old washing machine. In this case, the frame is made of a thick sheet of iron, preparing a place for installing the motor and carefully bolting it to eliminate vibration. The design of such a machine consists of 2 drums, and one of them is fixed, and the second can be tensioned and rotates on bearings around an axis. It is desirable to make the base for the machine from metal or several sheets of thick plywood. The drums are made on a lathe from chipboard. The tape is cut from sandpaper sheets with a width of about 20 cm and fixed on the bed. The larger the table is, the larger the parts can be stacked and processed in the future. Drawings of finished products can be found online.

https://youtu.be/vDs1gBM_MW4

We make a grinder from a grinder

Many may say that the "grinder" is the same is an angle grinder, but there are some subtleties hidden here. It should be borne in mind that angle grinders have very high revs and are often quite decent weight. To polish the surface with a grinder, you need to have considerable experience in this matter and use special polishing discs and wheels. The sander has a much lower engine speed and weight. To work with a factory grinder, no particular experience and skill is required.

It is possible to independently make a good grinder out of a grinder, which is not inferior in its parameters to a factory machine, only by improving its electrical circuit, by mounting the regulator at lower speeds and by using special grinding nozzles.

Making a grinder from a drill

To turn an ordinary, household electric drill into a grinder, you need to equip it with a special attachment - a working drum or a special support plate, depending on the task at hand.

The backing or sanding pad is a plastic or rubber base with sandpaper glued on and a shank for clamping into a drill chuck. Trays with a flexible shaft are suitable for working with a loose drill, while with a rigid one it is better to use only for a well-mounted drill.

Grinding drums for household drills are structurally an ordinary cylinder, a shank and sandpaper glued to the cylinder. When using drums, the working surface of the grinder is parallel to the axis of rotation.

Making an orbital sander

Currently, making an orbital machine with your own hands is possible only from a broken orbital machine. This is due to the complex device for rotating the working disk, which is quite problematic to repeat on your own. It should also be borne in mind that a machine made by a specialized company will not cost too much, and making it yourself will be very difficult and take a lot of time.

Making a grinder from a computer hard drive + (Video)

Any old hard drive can be converted into a miniature sander. To do this, follow these steps:

  • completely disassemble the hard drive and remove from the case everything that is located to the left of the magnetic disks;
  • cut out the working circle from sandpaper, make a hole in the center of the circle for the spindle;
  • glue several strips of double-sided tape on the rotating disk of the hard drive and fix sandpaper on it;
  • make a protective screen that protects the eyes from the possible departure of the manufactured emery disc;
  • connect the finished structure to the power supply from the computer and use.

Of course, this design does not have high power, but it is quite possible to sharpen a small knife or scissors.

How to make a sander with your own hands

You can make a sander yourself

To make a simple sander, we need completely simple things. First, let's find a motor. You can use, for example, old spare parts from a computer: a power supply unit or a floppy drive. You can find other similar electric motors, for example from a fan, in our technical age this is not a problem. To drive this motor, you can use a regular household volt battery.

Next, take a piece of the board, sand it, you can varnish it for beauty. Now we will fix the motor and the battery on this board with screws, connect them with wires, introducing a conventional switch into the circuit. The wires can also be fixed on the board so that they do not dangle, using for example a stapler.

Now take sandpaper, cut out two round pieces from it, and glue them together with glue with glue. This will be our grinding wheel.

Next, we need two bushings to attach the grinding wheel to the motor axis. Here you should be guided by what you are using as the engine, since the diameter of the axis can be different. Basically, you can try some plastic bushings, matching them to the diameter of the axle.

That's basically it. Such a grinding wheel can be used to grind various wood and metal parts.

Since this method of making a homemade sander was found by me on the Internet, I cannot vouch for the reliability. I can only point out some errors and shortcomings of this product.

First, an electric motor from a computer is unlikely to be suitable for a grinder, it will probably be rather weak. Better, of course, to use a fan motor.

Secondly, a sanding element made of glued sandpaper is not the most acceptable option. Stores sell special small grinding wheels. Although the very principle of making a grinder is correct.

However, if it comes to that, then make a stationary grinding unit, it is better from the electric motor of an old washing machine. It can be used not only for grinding, but also for grinding abrasive wheels.

Every motorist takes care of his car as a favorite child. But excellent technical condition is only a small part. Everyone wants a car to be shiny and bright, but scratches and scuffs are inevitable. Dust and rain will also cloud the paint. The best way to bring back its original shine is to polish the body. But this must be done competently and slowly.

Do-it-yourself car polishing.

It is not necessary to give your car to an expensive salon, you can polish the car yourself. For this you will need:

Various types of polishing pastes;
- polishing machine;
- circles for polishing;
- soft scraper;
- soft napkins, preferably microfiber;
- water spray;
- please. paper (R2500 or R1500).

It is important to know when polishing your car.

When polishing a car body, you must take into account a number of nuances:

1. The wax polish is unstable and will wash off quickly. But it has one plus - it is the most economical and cheapest.

2. When Teflon polish is applied, a coating is formed that repels water well. It protects against oxidation, sun damage and corrosive processes. It will withstand up to 10 car washes.

3. Epoxy will protect your car for up to 9 months. It perfectly repels water and dirt. True, it is more difficult to apply and more expensive. But it's worth it.

4. Preservative varnish is the most resistant even to the most aggressive influences.

Preparatory work:

Before you start polishing the car, you need to wash it well;
- find a suitable room;
- organize bright lighting.

Car polishing process:

1. Using sandpaper, previously soaked in water, rub over large cracks, removing the remaining water and cleaned elements with a scraper.

2. We take larger paper and erase small scratches.

3. Apply the abrasive paste evenly with the largest circle. It is better to take a universal composition. Take the machine on which you can easily adjust the speed.

4. Apply the polish layer by layer.

5. Wipe with a napkin after polishing.

6. Make sure that the device does not overheat.

Now it remains to thoroughly wash the car with shampoo, and you will see a brilliant DIY result!

VIDEO. Machine polishing.