Or a workshop.
For assembly we need:
1. Compressor from the refrigerator.
If you remove it from the refrigerator, cut off 30 centimeters of the copper tube; we will need it later.
2. Receiver.
This is a durable container for compressed air. You can make it from an empty freon cylinder, which is used to refill air conditioners. The easiest way to find it is to contact any car service center that provides refueling services. car air conditioners. They throw away empty cylinders.
A red 50 liter propane cylinder is also suitable as a receiver. You can buy it on Avito for 500 rubles.
Next, we will need spare parts from a purchased compressor. You can find them in any major hardware store, in the power tools department.
3. Pressure switch.
4. Pressure regulator.
5. Rapid adapter.
6. Safety valve 10 bar.
7. Pressure gauge from 10 to 12 bar.
8. Moisture separator.
9. Four small wheels.
10. Small things. To make it easier to find parts, we go to any plumbing store and purchase everything from the list.
All parts will need to be connected according to the diagram.
For reliability and tightness threaded connections, it is advisable to use a special glue sealant.
An important detail our compressor is air filter.
Very a good decision will use a classic gasoline filter.
We also buy a vacuum hose at the auto store.
The platform on which the compressor and receiver will be mounted will be made of plywood or chipboard.
Secure the receiver using steel tape.
Let's start assembling.
Drill three holes with a diameter of 10 mm in the receiver.
Sandpaper After cleaning the welding area, weld the nipple to the holes.
Let's attach the purchased wheels to the plywood.
We will fix the receiver onto the resulting trolley.
The compressor from the refrigerator is fixed with self-tapping screws.
We put our gasoline filter on the compressor inlet.
We will make the connection through a piece of vacuum hose.
We put a flexible hose on the suction end of the compressor.
The hose should be bitten off in place. The connection to the pipe is made using a worm clamp.
Now we assemble the automation unit.
Screw the pressure switch into the hole, safety valve, pressure gauge, pressure regulator.
We connect the rapid adapter to the pressure regulator.
The final step is to connect the plumbing elements.
And we attach a pre-assembled automation unit to them.
A piece of copper pipe. Its function is to relieve pressure.
After the compressor pumps air into the receiver, the pressure switch opens the valve through which the pressure in the discharge system is released.
This is done to make it easier to start the compressor, since it will not start under pressure.
We attach the tube at the very end. To do this, you need to expand one end of the tube as in the figure. This can be done using a steel ball and a hammer.
And connect the extended end to the pressure switch.
We connect the second end to the fitting through a vacuum hose.
Our compressor is ready, but in order for it to be enough for work performed in the garage, a connection option was provided additional receiver through the oxygen hose.
To do this, in addition to the above, you need to purchase:
Two 50 liter propane tanks.
15 meters of oxygen hose.
Quick-release adapter for hose for connecting pneumatic tools.
Tee for combining cylinders.
Two ball valves for 1/2, 3 fittings for 1/2, a tee for 1/2, worm-type clamps.
Putting everything together, you get a real, big compressor.
Like any mechanism, such a compressor has pros and cons.
Pros.
First, the assembly cost is 5,500 rubles. Approximately 2 times cheaper than a compressor of the same volume.
The second is the noise from operation, because it is no louder than a refrigerator.
Third, and perhaps most important, is reliability. Since the reliability of Soviet refrigerators is beyond doubt, which means they will last a very long time.
As for compressor automation, it all depends on your choice. After all, the price of the same pressure switch starts from 500 and ends at 3000 rubles.
4. High maintainability. After all, in the event of a breakdown, there will be no problems with spare parts.
Now about the cons.
Many craftsmen know that you can make a compressor from a refrigerator with your own hands! Can . But few people know exactly how to do this! In this article we will try to provide a comprehensive answer on how to make a compressor with your own hands, so that anyone can create this equipment at home.
After all, if you look at it, the essence of the issue is that an air compressor is needed in every garage. Using a compressor, you can inflate wheels without visiting a service station or tire shop, supply air to a working pneumatic tool, or simply blow off dust from the surface being treated. So, let's consider the installation option for painting.
Factory or homemade compressor
There is a list of specific requirements for a painting station. The main condition is the need for a uniform supply of air, without any impurities. Standard defects that occur due to the presence of foreign particles include graininess, shagreen, or cavities in the enamel coating. If the paint flows unevenly, drips or matte heels may form.
Of course, if you pay attention to branded air compressors, then such installations are equipped with all the necessary functions for high-quality operation of the airbrush. The only drawback of such units is their cost.
To save money and at the same time create a functional model that will not be inferior professional equipment, you need to familiarize yourself with the theoretical information base or watch a video on the topic “do-it-yourself compressor for painting a car.”
The operating principle of any model, regardless of whether it is homemade or factory-made, is the same. Excessive pressure is created in the tank. The method of air injection is different (manual, mechanical). In the case of manual feeding, there is a significant saving in money, but a lot of energy is consumed. After all, the process requires constant monitoring.
Automatic inflation allows you to avoid these disadvantages, with the exception that the oil for the air compressor requires periodic replacement. Thus, there is a uniform supply of air to switchgear. In theory, this looks extremely simple, so it is possible to create an efficient compressor station in a short time.
Do it yourself
So, we choose to make a painting installation from a regular car camera. List of required materials:
- A car camera that acts as a receiver;
- A pump with a pressure gauge that acts as a supercharger;
- Chambered nipple;
- Repair kit;
- An ordinary awl.
Now you can start making the compressor station. The chamber must be checked for leaks; to do this, it must be inflated. If there are air leaks, the problem must be corrected, either by sealing or by vulcanizing with raw rubber.
After which, using an awl, you need to make a hole in the manufactured receiver. A nipple will be placed here, through which a uniform stream of compressed air will come out.
The additional fitting is secured by gluing. A repair kit will help solve this problem. Then the fitting is connected to the spray gun. To check how the air flow comes out, you need to unscrew the nipple.
In this case, the original nipple remains, it will serve as a valve and hold excess pressure. Finally, you need to determine the pressure level by spraying paint on metal surface. If the enamel lays down evenly, then the installation is working well.
In addition, the pressure value can be checked using a pressure gauge. But, its level, even after pressing the aerator key, should not be abrupt.
It is not difficult to design a compressor, but after its manufacture, anyone can make sure that repairing or painting a car will be much more effective than it was with a spray can.
The last parting words include the fact that it is necessary to avoid getting water or dust into the car camera in every possible way. So that these particles do not subsequently get into the spray gun, otherwise you will have to re-paint.
As a result correct operation, the created installation will work long time, but it’s better to automate air pumping.
Semi-professional air blower
Experts have repeatedly commented that homemade compressor units have a longer service life. Moreover, comparisons were made with domestic and foreign models.
This is natural, because the installation is being manufactured with my own hands. Therefore, we will consider the option of how to make a compressor from a refrigerator that will not be inferior even to products from famous companies. So, for its manufacture you need the following list of materials:
- Receiver for compressor;
- Pressure gauge;
- Relay for monitoring pressure in the compressor;
- Threaded adapters;
- Fuel filter (gasoline);
- Gearbox with oil and water separating filter;
- Plumbing cross with ¾ inch thread;
- Motor for compressor unit;
- Automotive clamps;
- Motor oil (10W40);
- Switch (220 V);
- Oil resistant hose;
- Brass tubes;
- Regular syringe;
- Thick board;
- Compressor rust converter;
- Power system filter (diesel);
- Metal paint;
- Nuts, washers, studs;
- Wheels for furniture;
- Sealant, fum tape;
- Needle file.
Working mechanism
To simplify the procedure, the engine can be a compressor from an old refrigeration unit Soviet model. There is one positive point here, namely the presence of a compressor start relay.
Soviet models are superior to their foreign competitors by producing higher pressure. After removing the executive unit, it is necessary to put it in order, freeing it from accumulated rust.
A rust converter will help treat the compressor to prevent further oxidation. In this way, the working motor housing will be prepared for subsequent painting.
Installation diagram
After completing the introductory part, you can start changing the oil. After all, if you don’t cheat, there are very few refrigerators that have managed to undergo regular maintenance or oil changes. However, this course of events is also completely justified, because in this case the system is completely isolated from atmospheric influences.
So, semi-synthetic oil is quite suitable for this procedure. Moreover, it is no worse than compressor oil and has a sufficient number of useful additives.
We go further and find 3 tubes on the compressor, 2 of which are open, one is sealed. In our case, open tubes will be used for air circulation (inlet and outlet). To understand how air moves, you need to apply power to the compressor for a short time. Then remember or write down which air duct draws in air and which, on the contrary, releases.
The purpose of the sealed tube is for routine oil changes. Therefore the closed end should be removed. A needle file will help us with this; we need to make a notch around the circle of the tube. In this case, you should make sure that chips do not get inside the compressor.
After that, it is necessary to break off the end of the tube and drain the oil into any container in order to determine its volume for subsequent replacement. Then we take a syringe and fill in the semi-synthetic, but in a larger volume than was drained.
When the oil is filled, you need to turn off the engine lubrication system. This can be done by selecting the required screw, after which this screw is wrapped with fum tape and screwed into a tube. This is a good time to remind you that oil droplets will sometimes leak out of the supercharger air outlet tube.
Therefore, an oil and water separator for a compressor will come to the rescue.
When the indicated work is completed, it is time to begin assembling the installation. You need to start by strengthening the engine with a starting relay on wooden base, so that it is in the same position as it was on the frame.
This is necessary due to the sensitivity of the compressor relay to spatial position. To determine more precisely, on top cover an arrow should be drawn. It is important to maintain accuracy here, because the correct switching of modes will depend on the installation of the compressor.
Air container
An excellent solution to the problem would be fire extinguisher cylinders. This depends on their ability to withstand high pressure; in addition, the cylinders have a significant margin of safety and are excellent as attachments.
So, let's take the OU-10 fire extinguisher as a basis. Its working volume is 10 liters. According to technical characteristics the cylinder can withstand pressure of 15 MPa. Now we need to unscrew the locking and starting device from our workpiece, and then screw in the adapter.
In this case, if traces of corrosion are detected, they must be removed with a rust converter. Of course, external removal is not difficult, but internal removal will require patience. Therefore, we pour the converter inside the cylinder and shake the contents.
After cleaning, you can screw in the plumbing cross. Thus, two working parts of our compressor installation were prepared.
Installation of parts
To make it easier to store and move working parts, it is best to place them on one base. As mentioned earlier, you need a wooden board, which will serve as the basis for securely fastening the engine, as well as the fire extinguisher body.
Therefore, we will use threaded rods as engine mounts, which must be threaded through the drilled holes. Of course, in addition to everything you will need nuts (washers).
Then you need to position the receiver in a vertical position; 3 sheets of plywood will come in handy here. In this case, you need to make a hole in one sheet for the cylinder. The remaining sheets are attached with self-tapping screws to the main board and glued to the sheet that holds the receiver.
But, the day before, you still need to hollow out a recess in the wooden base for the bottom of the receiver. And finally, in order for the structure to be maneuverable, you need to screw furniture wheels to its base.
After everything has been done, you need to protect the system from possible dust. A gasoline coarse fuel filter will come to the rescue. It will serve as an air intake.
This will involve the rubber hose and the supercharger inlet tube. It should be noted that there is low pressure at the inlet of the compressor station, and, therefore, strengthening the contact using automobile clamps is not necessary.
Thus, we have created an input filter for the compressor installation. At the outlet of the station, you need to install an oil and water separator that will block the entry of water particles. The power system filter will be used here. Due to the fact that the pressure at the outlet of the compressor station is increased, automobile clamps will be used from this point.
So, the turn came to the oil-water separating filter. In this case, it must be connected to the input of the gearbox, which is needed to decouple the reservoir and the pressure output of the supercharger. This means that we screw the outlet into the previously prepared cross on the left side, and screw in a pressure gauge on the right, thanks to which we can control the balloon pressure. You need to screw in the adjusting relay on top of the cross.
The presence of an adjustment relay will make it possible to set the height range of the receiver pressure, as well as interrupt the power supply circuit in the supercharger in a timely manner. When it comes to the actuator, it is recommended to use PM5 (RDM5).
With the help of these devices, the compressor will turn on if the air pressure in the tank drops below the set level and turn off if the specified parameters are exceeded.
The required pressure is adjusted on the relay using two springs. The function of the large spring is to create a minimum pressure, while the small spring is responsible for regulating the upper limit, essentially setting the shutdown limit for the compressor unit.
PM5 (RDM5) were primarily produced for the purpose of use in the water supply network; in fact, these are ordinary two-contact switches. In our case, one contact is used for the zero connection of the 220 V network, while the second contact goes to the connection with the supercharger.
We conduct the network phase through a toggle switch to connect to the second input of the compressor station. If there is a toggle switch in electrical diagram, we will be able to quickly disconnect the system from the network, which will save you from running around towards the outlet.
Naturally, all connections must be soldered and carefully insulated. After this, you can paint the finished installation and carry out test tests.
Adjusting the pressure
So, after assembling the structure, it is quite natural to check it. To do this, you need to connect a spray gun, or, alternatively, a pneumatic gun. Then, without turning on the toggle switch, we connect the plug to the network.
We set the control relay to minimum pressure and supply power to the supercharger. Don't forget about the pressure gauge, which allows you to control the pressure in the tank. After we managed to make sure that the relay turns off the engine, we need to check the tightness of the connections.
This is where a classic can help. soap solution. If the system has passed the leak test, you can bleed any remaining air from the reservoir chamber. Please note that if the pressure drops below the established limits, the relay must start the compressor. If all systems are in working order, it is possible to begin painting any part.
At the same time, you should not burden yourself with pre-processing of the metal. It is important for us to set the pressure required for painting the product.
Such experimentation will give us the opportunity to determine the atmospheric value so that any product is painted in a uniform layer. In addition, it is very important that this entire process occurs with minimum quantity supercharger activation.
Thus, we can summarize the results. Manufacturing car compressor, a lifting activity for every car enthusiast.
Of course, it’s hard to argue with the fact that the second version is more complicated and will take more time to manufacture, but thanks to the automatic pressure control system, as well as the presence of a supercharger start, working with such equipment will be an absolute pleasure.
In addition, you will no longer need to control the receiver's camera. Such a station will allow you to paint a car, a fence in a village or a garage door.
For long-term operation of the created compressor, it will be necessary to carry out periodic routine maintenance . You can use a syringe to drain the oil. In this case, unscrew the filler hole, put a hose on the tube and pump out the waste. Fresh oil can also be pumped in using a syringe. Filters are changed as needed, including if the rate of filling the tank chamber decreases.
Make or buy
Today the market is filled with a variety of compressor equipment. There are piston units, vibration units, screw stations and other devices that are manufactured for different purposes. Ready installations can be purchased at auto parts stores or on specialized websites.
A large selection can make it difficult to choose the desired product. But be that as it may, if you decide to buy a ready-made station, focus on studying the technical parameters, cost and reviews.
To obtain a guarantee of quality, it is better to purchase equipment from well-known brands; however, an expensive product will pay for itself in the case of professional car repair. Little-known products can let you down, so it’s better not to take risks.
Often budget options Low quality materials installed. There are frequent cases of installations failing due to instantaneous breakdowns of individual parts, while warranty repairs will take a lot of time.
As already stated, self-assembly It is often more reliable than the factory one. A separate advantage is technical specifications. For example, according to statistics, refrigerator compressors last for decades. Regarding the fire extinguisher, we can say that this product has a tenfold safety margin.
Therefore, it is better not to buy something that you are unsure of. In addition, having studied the current material, you know that you can make a compressor with your own hands even in living conditions. A well-made device will be the envy of your garage neighbors.
Another story
Let's start with the design technical requirements to the fruit of his own engineering. Let's say it all started with the purchase of a new double-action airbrush. Therefore, the issue of manufacturing a compressor unit with a receiver became extremely necessary.
A dual action airbrush has the ability to control the air flow as well as lock and open the air duct. In Europe, such a device is used with a separate compressed air cylinder. So, a compressor with a reservoir serves as a container for collecting air, and the airbrush uses this air.
Of course, the main component is the compressor. This is where it comes to the rescue old refrigerator, from which you can remove an excellent compressor. To do this, you can go through websites that sell refrigeration equipment.
We decide on the price and order delivery, but before that we also need to write down the name of the manufacturer and visit the website. So, in our case, the manufacturer is Danfoss. On the company website we download technical description compressor.
Next, we’ll consider an option like a do-it-yourself compressor receiver. Here, of course, you need a reservoir that was made to contain gases or can withstand high pressure. It is optimal if such a container meets the requirements of GOST. Therefore, we immediately exclude containers by type plastic canister or bottles. Let's look at the tank options:
- Carbon dioxide fire extinguisher. Withstands pressure - 10 atmospheres. Capacity – 3 l/5 l/10 l. Cons: the inlet has a metric thread.
- Hydraulic accumulator. Good capacity capacity, with low operating pressure. There is a convenient thread at the entrance. Disadvantages - it needs fine-tuning, since from the inside it is divided into a membrane that contains carbon dioxide. The membrane must be removed.
- Oxygen balloon. Withstands high pressure. Cons: Only extremely heavy models are available.
- Propane tank. In general, they are similar to a fire extinguisher, but the manufacturer does not recommend their use for compressed air.
Links
After we have decided on the compressor and selected suitable product for the receiver, the next step is to combine them. In addition, it is necessary to solve the problem of air supply to the airbrush.
You can start with a unit that is attached directly to the receiver and will ensure air distribution. It must be recalled that the key factor is its compatibility with the receiver connector. Next, we pay attention to the pressure switch, which will ensure that the compressor is turned off and on.
The best option for the relay would be RDM-5, which is used for plumbing systems. This model is widely available for sale, and the good thing is that it connecting element Designed for external inch threads.
Then we determine the pressure indication in the receiver. For this we need a 10 atmosphere pressure gauge; it also has a suitable connection size. And we will also need a static device.
Next we are working on the air preparation unit. Pressure must be applied to the hose that leads to the airbrush. Accordingly, there is a need for a gearbox with a pressure control limit of up to 10 atmospheres, and it is desirable that it be accompanied by a pressure gauge and an oil separator filter.
Using a pressure gauge, we will monitor the pressure, and the filter will ensure that particles of compressor oil do not enter the receiver. But it should not be confused with a lubricator filter, which performs a diametrically opposite function.
Let's continue collecting materials, and it's time to prepare fittings, turns, and tees. We take inches as the base size. To determine the quantity, you need a diagram of the air distribution and preparation unit.
We will also need external and internal adapters. If you wish, you can make a plan diagram of how to make a compressor. The next stage is the placement of the finished structure. Chipboard boards may be an option.
Of course, in order not to swear while moving the station around the workshop, it is advisable to immediately resolve the issue with the roller legs. Any furniture store will gladly sell them to you. To save space, you can make a two-story structure. True, long bolts may be needed. So, let’s summarize the planning stage with a list of components:
- Compressor;
- Receiver;
- Pressure switch;
- Pressure gauge;
- Filter reducer;
- Emergency valve;
- Fittings, adapters;
- Plumbing gaskets, fum tape, sealant;
- Cables, switch, plug;
- Flexible oil-resistant hose;
- Chipboard sheet
- Roller legs, bolts, nuts, washers and tools.
Let's start assembly
The ideal would be to dismantle the fire extinguisher assembly and weld the adapter fitting. Alternative way, this is to unscrew part of the valve, leaving the internal mechanics and removing the control element, then screw an adapter with an internal inch thread to one outlet, and an adapter from 1 to 38 to the other.
Using an adjustable wrench, twist the adapters according to the diagram. Next, we install the reducer, pressure gauge, pressure switch and adapter for a flexible hose.
The next step is to screw the wheels to chipboard sheet. Since the structure will be two-level, you need to drill holes for the studs. After that, we put the fire extinguisher in its place.
In the case of using a hydraulic accumulator, the assembly diagram is even simpler, since it has brackets at the top and bottom. Therefore, the lower fasteners are screwed to the base, and the upper ones are used to install the compressor.
In our case, the second floor needs to be built. To do this, markings are made, holes are drilled, and the upper and lower floors are bolted together. After which a compressor is installed on the second floor. Silicone gaskets are suitable to reduce vibration.
When installing the compressor, we install washers. We screw the air distribution module to the tank. Using a hose and clamps, tightly connect the compressor outlet and the inlet of the air preparation unit.
Now it's time to work with the wiring diagram. It would be appropriate to install a jumper. It also wouldn't hurt protective elements. The connection line must pass through the relay and switch. The connection itself will proceed as follows.
From the plug the phase wire goes to the switch. Then it is connected to the desired relay terminal. If there is no ground wire, connect the neutral wire to the relay ground terminal.
Already from the relay, the phase wire and the neutral wire go to the compressor station drive starting device and are connected according to the diagram to the required terminals. Next, install a jumper on the terminal block of the starter by soldering.
It will ensure the connection of the windings to the phase. Cables can be wrapped in plastic ties. We check and start the installation. Then we paint it.
Do you want to know everything about car painting? Read more useful articles:
- . Everything is to the point.
- . These tips are important.
- . Useful if you want to buy a car.
This air piston compressor is very easy to manufacture and anyone can repeat it if desired. The compressor can be used to inflate balloons for some chemical experiments where it is required to create air bubbles in a liquid, such as a compressor for aquarium fish and so on.
What is required to make a compressor?
- The motor with a 12 V gearbox is the most scarce part, you can buy it here -
- Several bicycle spokes.
- Two valve nipples from a bicycle.
- The power supply is 12 V, you can buy it here if you don’t have it -
Bicycle spoke.
Manufacturing
So, if you have collected all the components, we can start making our compressor.Bend the knitting needle at the end at a right angle.
Using wire cutters, we’ll bite off the knitting needle on the other side so that we get an L-shape like this.
We insert the threaded part of the spoke into the hole in the gear motor shaft. The hole was there originally. We fix it with a second locking nut from another spoke, tightening it with pliers.
Then we take two knitting needles and wind one on the other. We take out the inner knitting needle and bite off part of the wound knitting needle. Here's what should happen.
We bite off at a distance of about 10 cm and make a bend.
Next, we put this curl on the part that we made earlier for the gear motor. The limiters were made from locking nuts from the spokes. Fixing the nuts super glue. We have a moving unit. This is the piston arm that will push the compressor piston.
Let's take a piece wooden board and attach the motor with the gearbox and our crank system using a bracket, screws, and wooden block for elevation.
Let's take out the syringe, separate the needle - you won't need it.
We take out the syringe piston and cut the lower edges into a cone to ensure greater ease of movement of the piston, removing excess pressure.
Using a hot soldering iron, on the side closer to the beginning of the syringe, we will make a hole for the nipple valve.
Insert the nipple and secure it with super glue. This will be the intake valve.
Fill the hole for the needle with hot glue - we won't need it.
We make another hole with a soldering iron and insert the exhaust valve, and also fix it with super glue.
For greater reliability and to prevent leaks, we fill the valve connections with epoxy resin.
Let's take the paste from a gel ballpoint pen. Cut a small piece about 1 cm. Glue this piece to the end of the piston with super glue.
Let's insert the end from the spoke of our mechanism into it. And install the modified syringe on wooden stand. Everything is fixed with hot glue.
I have been dreaming of buying a compressor for two years now. A very useful device for a wide variety of work in the garage: inflating wheels, painting with a gun, blowing out engine parts, and so on. On average, a simple compressor costs 10 thousand rubles, a homemade one cost 300 rubles, plus a bunch of rubbish that was lying around the house. An old compressor from a refrigerator, gas cylinder, pressure gauge 10 BAR, angles and tees made of brass, plugs for them, nipples with threads from metal moped inner tubes, clamps, washers.
For production I used a compressor from a refrigerator cylindrical installed horizontally. It has a capacity of 10 l/min, this is very little compared to industrial ones, but I don’t need anymore, say, for 5-10 seconds to bleed air at a low pressure of 3 Bar, when in the receiver (I’ll tell you about it later) the pressure is 8-9 Bar.
For the receiver, I take a 50L gas cylinder. I drained all the gasoline from it ahead of time. I tried to unscrew the tap, but no matter what methods I used, the tap would not budge.
Since the cylinder tap has a left-hand thread, I decided to make a 3/4-inch adapter with a right-hand thread. Took the hose high pressure and two adapters from 3\4 to 10mm with left and right threads. The result is such an adapter
I assembled a simple splitter from tees and angles and made a test switch.
In 45 minutes the cylinder gained a pressure of almost 9 bar, with a receiver volume of 50L this is approximately 430L of air
I filled it a couple of times, and then lowered the cylinder upside down to remove the remaining gas and gasoline, and then began a thorough assembly. The position of the cylinder is horizontal, I welded the compressor mount on top and installed all the wiring with a pressure gauge. I secured the circuit with clips mounted on nails welded to the cylinder. The compressor was connected to the circuit with a hose, secured with clamps
I drilled a hole in the plug, inserted a nipple into it and put a rubber gasket on top. The plug was clamped onto the tap, and there were two tees in a row to the tap: one outlet to the receiver, the other to the pressure gauge. Next I screwed on a corner, a coarse filter to the corner, a coupling to the filter and the same plug as on the other side.
A filter had to be installed so that the oil that is squeezed out by the compressor would settle and not get into the receiver and pipes.
All that's left to do is weld the legs and paint everything the same color. There was one leg at the front, two at the back. All legs are remains of a corner
I haven’t set the machine to turn off until I don’t have the money to buy it. For the same reason, I did not install a pressure regulator. As soon as I have the money, I’ll finish it, but for now it’s enough as it is.
Similar video from YouToBe
I won't paint it, I'm too lazy.
With uv. Admin check
A private home or garage requires compressed air. But the main problem is that the equipment capable of providing it required amount, has a fairly high cost. At the same time, if the master does not carry out such work professionally, it makes no sense to spend a lot of money, which means you need to look for cheaper options for resolving the issue. One of these is the production air compressor with your own hands from scrap materials. This is exactly what will be discussed in today’s article.
PHOTO: drive2.ru
The main component of such equipment is a supercharger, consisting of an electric motor and pistons. However, it is worth immediately noting that compressors can be intended for different purposes. For example, a car device designed to inflate tires is also called a compressor, but it cannot be used to supply air to a spray gun. The thing is that with such a device the air is supplied unevenly, which is unacceptable when painting surfaces. For uniform supply to the spray gun, the device is equipped with a special reservoir - receiver.
PHOTO: drive2.ru
Preparing to make your own air compressor
Manufacturing work homemade compressor DIY projects start with the main unit - the supercharger. Therefore, the first step is to decide what will serve as its base. The supercharger can be dismantled not only with different household appliances, which has served its time, but also from the engines of some cars.
PHOTO: drive2.ru
Many craftsmen who are professionally involved in airbrushing or other work that requires compressed air in small spaces give preference to air electric compressors 220 V, made by yourself. This is due to their quieter (compared to factory versions) operation.
PHOTO: drive2.ru
DIY compressor receiver: what to make it from
Most simple option here you will use a tubeless wheel from a car, but it is worth remembering that the disk will no longer be suitable for travel after modernization. But such a homemade receiver for a compressor is as simple as possible to manufacture, and therefore more acceptable for small volumes of work, such as airbrushing.
PHOTO: krsk.au.ru
If a larger volume of air is required, it is best to use a fire extinguisher or an old gas cylinder as a receiver when making a compressor with your own hands.
Supercharger, pressure gauge and other parts
If you plan to use a powerful supercharger that has been removed from old technology, you need to purchase a pressure gauge and an emergency valve that will not allow the pressure in the receiver to rise above the permissible level. As for the simplest compressor from an old wheel, a car device powered by a cigarette lighter and used to inflate tires is quite suitable here. However, such a supercharger can create overpressure which will lead to tire rupture. This situation is very dangerous and is fraught with injuries, sometimes incompatible with life. Therefore, you should never forget about the emergency valve.
PHOTO: drive2.ru
Let's consider an example of a simple compressor based on a car electric pump and a tubeless wheel as a receiver.
How to make a simple compressor with your own hands
To operate, you will need to purchase an emergency valve and a pumping fitting (nipple, spool, “nipple”). IN wheel rim an additional hole needs to be drilled for it, just like for the emergency valve. Next, the inflation fitting and valve are installed in their place, and the wheel is assembled. All that remains is to connect the car to one of the pumping fittings electric pump, and to the second the outlet hose to the spray gun or airbrush. Now, after filling the wheel with air, the DIY mini-compressor can be used for its intended purpose.
PHOTO: eckonom.ru
Making compressors with your own hands using various devices
Homemade compressors can be made using parts from a refrigerator or vacuum cleaner as a base. Such devices, in their manufacture, will not require much labor, and will not consume a lot of electricity. If the craftsman requires a more powerful device, then to make a compressor with your own hands, you can use equipment, for example, from a ZIL 130, KamAZ or other vehicle whose systems use compressed air.
PHOTO: krsk.au.ru
It is worth understanding in general terms the manufacture of such devices.
How to make a compressor from an old refrigerator
The process of making an air compressor from a refrigerator with your own hands is extremely simple. To do this you will need:
- receiver;
- filter and moisture-oil separator;
- gearbox with pressure gauge;
- the compressor itself is from the refrigerator, which is dismantled along with the relay;
- safety (emergency valve).
PHOTO: aredi.ru
Air compressor diagram
For a better understanding of how such a device is assembled, you can take a look at the schematic diagram below. However, the author of this drawing made one of the main mistakes of a beginner. It is precisely in order to show it that the editors of Homius cited this image as an example.
PHOTO: tehnika.expert
As you can see, the author suggests installing a filter between the receiver and the compressor, which is not recommended. The fact is that when the pressure increases, the plastic case can simply rupture. An oil-water separator should be located in this location. The filter itself is mounted on the compressor tube through which air is sucked in.
PHOTO: drive2.ru
Also, the diagram does not indicate an emergency valve, which should relieve excess pressure. It is best to install it on the receiver itself.
PHOTO: drive2.ru
How to make a compressor from a vacuum cleaner: is it possible?
Many novice craftsmen, having first heard about the possibility of making a compressor from an old vacuum cleaner, begin to ask questions about how the receiver is connected to it. However, this is all from the series “I heard a ringing, but don’t know where it is.” The fact is that the name “compressor” refers to similar device difficult to attribute. Rather, it is an atomizer from which you should not expect much. Although, if we talk about the possibility of whitewashing the walls in the cellar or other similar work, this device can greatly facilitate the work. Such attachments, which were put on a regular glass jar, came complete with Soviet vacuum cleaners, and now it is much easier to order them on Chinese resources or purchase them second-hand than to make them yourself.
PHOTO: film.ua
PHOTO: starina.ru
Making a compressor for an aquarium with your own hands
Such devices are quite in demand among consumers. But we should immediately make a reservation - there is practically no point in such work. The cost of such equipment is Russian market is minimal, but it can take quite a lot of time. In addition, some parts will still have to be purchased. Therefore, you should first think about whether it is necessary to undertake such work?
PHOTO: seaforum.aqualogo.ru
Advice! Before you start making any device with your own hands, you need to calculate whether there will be any benefit from such work, “whether the game is worth the candle.”
Compressor for car painting: how to make it yourself
The most popular of all self-made compressors is equipment for painting a car or any other parts and mechanisms. In addition to a durable receiver, you will also need another supercharger that will fill the container with air much faster than refrigeration equipment. It is best to make such a device from a ready-made automobile compressor by connecting a 220 or 380 V electric motor to it as a drive.
PHOTO: compressortyt.ru
Diagram and assembly procedure for a piston compressor
If we consider schematic illustration such a compressor, it becomes clear that there is nothing overly complex in it. The main thing is not to forget to include a filter with a rigid body that can withstand the pumped pressure. It is installed at the outlet of the receiver in front of the air supply hose to the spray gun.
PHOTO: samodelkindrug.ru
Many people do not understand the purpose of this element, considering it completely unnecessary, but this opinion is wrong. The fact is that the air in the receiver is in a compressed state, and a change in the density of any substance, as is known, also changes its temperature. As a result of the compression and subsequent release of air and the resulting temperature change, condensation occurs, which can get into the paint together, which will certainly affect the quality of the final result. The filter eliminates this possibility.
PHOTO: master-hauze.ru
The nuances of assembling a homemade compressor for painting a car
The main task here is the strength of the hoses and the tightness of the connections. Therefore, it is recommended to use copper tubes to transfer air from the blower to the receiver and then to the filter. From the filter to the spray gun itself, it is optimal to use an oxygen hose. It is reinforced with fiberglass, and therefore has not only the necessary flexibility, but also increased strength.
PHOTO: sharx.org
Quite interesting for making a compressor with your own hands is the option of using equipment from the Ikarus bus and a gas cylinder, which can be seen in the picture below.
PHOTO: drive2.ru
Routine work before starting the compressor
Having assembled a compressor for a spray gun or other work with your own hands, you should test it. However, before this, as well as subsequently, before each launch, certain actions should be performed, namely:
- check the tightness and reliability of all connections;
- Visually inspect hoses and tubes for cracks or breaks.
PHOTO: sharx.org
After the compressor engine has started, it is necessary to check the gearbox setting using a pressure gauge. The answer to the question of how to set the compressor to required pressure, uncomplicated. It is set using a regulator installed on the pressure gauge by turning the handle left and right. And the maximum air pressure in the compressor receiver from the engine is regulated by an emergency valve, which is activated when the permissible threshold is exceeded.
