If you like to service the car with your own hands, without turning once again to car service specialists, you should get the appropriate equipment. Among other useful things you will need a system for painting a car - a compressor spray gun.
If you look wider, you will need a compressor not only for painting a car. It is also used for other operations, such as sandblasting, inflating the wheels and blowing various elements of the car. However, unlike other works, the specifics of painting is, that it is necessary to ensure stable air pressure. Otherwise, stains will appear on the treated surface, and the coating itself will be uneven and clogged.
Air compressor for car painting
Therefore the compressor, used for car painting, has special requirements for air pressure stability. in addition, the air flow when painting the car must not contain any foreign particles. This is necessary for that, that the surface of painting of a car was pure and equal, without air bubbles and foreign debris.
The simplest solution: if you just need to buy a suitable model in the store. Which compressor to choose for painting a car, will not be difficult, but this thing is quite expensive, and not everyone has the financial means to buy it. In this case, there is another solution - you can do it yourself.
This process is quite time consuming, which requires certain skills and patience. But if you want to make a homemade compressor for painting a car, any motorist can. The main thing, that there was desire and time.
Compressor for painting a car with your own hands
How the compressor for painting of a car is arranged
To begin with, you need to understand the principle of operation of such a device. And serial factory products, and a homemade car unit, assembled with his own hands, will have the same principle of operation. With the help of the means for injecting air is fed into the receiver, where it is in a concise form and where it comes with a given intensity to the spray gun, from which the material is sprayed. Pressure control is carried out by means of the manometer. The starting relay is used for step operation of all mechanism, which closes and opens the circuit at certain levels of air pressure in the receiver.
compressor device
We collect the necessary materials
The first stage of work - the accumulation of the necessary base of parts and materials. so, to make your own compressor for painting a car. You will need the following:
- motor from an old domestic refrigerator;
- cylinders from used ten-liter fire extinguishers;
- thick wooden board;
- engine oil (semi-synthetics);
- medical syringe;
- saw for cutting metal;
- pressure gauge;
- electric toggle switch;
- filter for gasoline engines;
- filter for diesel engines;
- reducer with filter for cleaning from oil and moisture;
- the crosspiece is water;
- brass tubes;
How to make a spray gun with your own hands?
Materials needed to assemble the compressor
- oil hoses;
- clamps with screws;
- sealant tape;
- rust remover;
- 3 plywood sheets;
- tumbler on 220 Volt;
- enamel for painting metal;
- wheels from furniture.
Once we have gathered everything we need, we can get to work.
What to do with the motor
As a mechanism for injecting air into a homemade device, it is best to put a compressor from an old Soviet refrigerator. You ask, why from the Soviet?
Because the motors in them are designed for heavy loads, they cope well with emergency situations and have a fairly large resource for durability. in addition, they have a starting relay, which we will need for the step mode of operation of our unit.
After we remove the motor from the refrigerator, we must improve it with our own hands. Because the oil tends to thicken over time, we better replace it. In the compressor for this we find 3 metal tubes. 2 open are the inlet and outlet air ducts. 3-This tube has a sealed end - a channel for changing engine oil.
We use the motor from the refrigerator for our compressor
To begin with it is necessary to be defined with air channels: which of them is incoming, and what a day off. Apply short-term voltage to the motor and watch, where the air enters, and where it comes from. We make appropriate marks on the channels.
Now we can start changing the oil - it's easy to do it with your own hands. Using a metal saw, make an incision in a circle, and then gently breaks off the sealed end, followers, to prevent sawdust and debris from entering the canal. Get rid of old oil, then pour the semi-synthetic with an ordinary medical syringe. To seal the duct, select a screw with a cross section of the appropriate size, wrap it with airtight tape and screw into the channel.
We change the oil in the refrigerator motor
How to make a receiver with your own hands
Now we need to make a container for compressed air. Many useful things, stored by us in advance, we find a cylinder of a used ten-liter fire extinguisher from a car. It is ideal for our purposes. Clean all the dirt from it, grind corrosion cells. Remove the shut-off valve and pour in the anti-rust agent, shake well, wait for the right time and drain. We screw a water crosspiece into a mouth - we can consider, that the receiver on the compressor for painting the car is ready.
Old fire extinguisher instead of receiver
Assemble the structure with your own hands
Once the two basic elements are ready, we can start installation. The diagram shows the general device of the unit for painting cars. For starters, you should study it carefully.
The scheme of the compressor for painting the car
All work is performed according to the following algorithm:
- We use a thick wooden board as a basis, we fasten the motor on it. You should pay attention to that, how it will be located depends on it, how stable and correct the starting relay will work. You must choose the same position, in which the mechanism was in the refrigerator. Probably, the relay will be marked accordingly.
- Fasten the receiver vertically. For this purpose in one of plywood sheets we make an aperture of the corresponding diameter, put on a balloon, and on the sides fix the other two sheets of plywood, strengthening them with one edge to the base, and others to a plywood sheet. Fastening is carried out by screws and glue.
- On the inlet air channel of the supercharger put on a rubber hose with a filter for a gasoline engine. It does not involve much effort, therefore there is no need for additional fasteners.
- On the outlet air channel of the supercharger we put a hose and the oil-dehumidifying filter from the diesel engine. As mentioned above, the air stream must not contain any impurities - otherwise it will negatively affect the quality of car painting. Because here the air flow will be quite strong, it is necessary to provide additional fastening by means of special clamps on screws.
How much does it cost to paint one element of the car?
Assembling a compressor for painting a car with your own hands
- We connect the filter to a reducer and on a chain - on one of lateral channels of a crosspiece of a receiver. The reducer will provide stable pressure, which is very important in the process of painting a car.
- On the other hand, include a pressure gauge in the circuit to monitor the pressure.
- From above crosswise we wind by means of a fitting of the relay for adjustment. It will monitor the air pressure level in the receiver and turn the motor on and off at the right time.
- We solder all electrical contacts and carefully insulate them. We solder the on / off switch of the device in the electric circuit, so that there is no need to constantly use the mains plug.
- Let's start the tests. We put the regulator of the relay on the minimum pressure and we include the device. Let's look at his work, try different positions of the regulator, we are convinced, that the relay regularly switches on and off the motor at the corresponding values of air pressure. With the help of molar solution check the tightness of all air ducts. If we are satisfied with the review and tests, perform control painting of a prototype.
We test the compressor
conclusion
A compressor is a necessary part of the set of equipment in your garage. With its help you can apply a layer of paint on the car body, as well as various types of varnishes and primers.
Because the serial product is quite expensive, many experts recommend making a compressor with your own hands. This is a complex and time consuming process. However, it saves a considerable amount. You will need some skills to work successfully, as well as patience and accuracy. Follow the recommendations described, perform each operation honestly - and the result of your efforts will be no worse than factory products.