To apply the paint evenly, you need to use a spray gun. This appliance can be purchased at a specialist store. The cost of this equipment is high. Therefore, many decide to make a spray gun with their own hands. For this, various improvised tools are used. The methods for creating a spray gun will be discussed later.
Product Features
Do-it-yourself spray gun for a car or repair can be made from various tools at hand. This device is a spray gun, which is used in the process of painting different surfaces.
Manual spray is sometimes used for watering indoor plants. More powerful varieties are suitable for painting different surfaces. This equipment allows you to apply a uniform coat of paint. The spraying method is very convenient. As a result, it turns out to process different surfaces quickly, and the result will be high.
The spray gun is suitable for paints and varnishes, as well as water-chalk or water-lime based products. There are several popular ways to create a spray gun. Various improvised tools will be used. You can choose the best option for yourself.
Regular pen
How to make a do-it-yourself spray gun? There are several options for such designs. One of the easiest ways is to use a ballpoint pen. This is the most primitive design. You can collect it in just 30 minutes.
The principle of operation of such a device is simple. A man blows into the tube of the handle body. Through it, on the other hand, splashes of paint break out. Material needs to be blown out with high intensity. If you do this sluggishly, droplets of paint will not evenly spread across the surface. Before you start, you can practice.
To make such a spray gun, you will need to purchase:
- regular gel pen
- the container in which the paint will be poured,
- needle from a regular syringe.
As a container, you can use a small bottle. It should be with a lid. The needle is better to prepare not one but several. They may break during the operation of the device.
Model assembly
Creating a small spray gun for painting with your own hands, you need to perform several sequential steps. First you need to prepare the bottle cap. A hole is cut out in it, as the core of a gel pen.
A tube will be installed in the cut hole. You need to disassemble the gel pen. The cork will be its core. The handle body will be brought to it. For this, a medical needle was needed. It is worn with a wide end on the shaft of the gel pen. A needle is inserted into the handle housing. Its tip should come out from its thin side.
You need to properly prepare all the components. Having disassembled the handle, a rod with paint is removed from it. His nose is cut off. Content must be deleted. To do this, use alcohol. This procedure is done carefully, otherwise the dye will be on clothing, interior items, etc. The body and the rod are connected with a needle.
Spray application
Next, you need to try the resulting product. First, water is collected in the container. Next up is the paint. Intensively blow into the bottle. Through one end of the prepared form, the paint will burst out.
To adjust the jet, you need to adjust the position of the rod and the handle body. The pressure of the jet depends only on the force with which the master blows into the bottle. This is how a makeshift atomizer works. With your own hands it is not difficult to assemble it. However, the texture of the paint will not be thin and uniform. It will consist of individual drops.
This option is suitable for those surfaces for which a high degree of evenness is not important. As a result of such processing, an interesting texture is obtained. It consists of many drops. This allows you to create a specific visual effect. The quality of work is influenced by the experience of the master. Therefore, before you start surface treatment, you need to practice.
Model improvements
Do-it-yourself spray gun for water or paint can be made according to the described scheme, but with some modifications. In this case, the device will be able to perform finer, more precise work. To do this, you need to perform a number of improvements.
Another hole is made in the bottle cap. Another rod from another gel pen is inserted into it (it needs to be prepared in the same way as before). Only its diameter and length should be less. This is taken into account when choosing a pen. This action allows you to increase the pressure in the bottle. As a result, you can blow out more paint with less effort.
A second needle is inserted into the handle housing. It connects to the second rod. Then you can practice applying paint. The wizard will do the same. But now the coating will be better. To adjust the jet, you need to move the rod, which supplies the paint.
Advantages and disadvantages of the model
Making a spray gun for do-it-yourself painting according to the proposed scheme is simple. Almost everyone will cope with this task. The advantage of the model is the possibility of its modifications. If necessary, connect the hose to a compressor or hand tool (such as a bicycle tire pump). In this case, it will be easier to work.
The disadvantage of the model is its limited range of applications. The pattern that the paint forms may not suit the existing interior style or the look of the object. Therefore, before starting work, the tool must be tested on the training surface. It is also worth considering that this model is suitable for thick paint. Whitewashing in this way will be difficult to apply.
If the container does not have a lid, it can be made from improvised means. If the paint is water-based, regular polystyrene is suitable for these purposes. If chemical dyes are a part, it is necessary to make a stopper for a capacity from rubber or other similar material. It will not be destroyed by solvent.
Aerosol spray can
There are several options for how to make a spray gun for your own hands. A simple design can be made from a conventional aerosol can. It is suitable for applying water based paint.
To assemble such a spray gun, you will need to prepare a bicycle chamber, a plastic bottle, an ordinary spray can, for example, from a deodorant, as well as a hand or foot pump. The second option is more convenient. You can work with the spray can with two hands.
The design is assembled according to a certain scheme. With the help of such a spray gun, it will be possible to perform high-quality application of liquid material to the surface. In this case, the spraying will be more uniform than in the previous version. And it will be easier to work with this device. Air will be supplied to the cylinder using a pump. This provides a good spray paint.
Assembly procedure
If you want to make a do-it-yourself spray gun for whitewashing with lime or water-based paint, a spray can design option is suitable. First you need to cut off the nipple from the bicycle chamber. Its cover has a diameter of approximately 3 mm. A hole is made in the bottle.
Next, on the inner wall of the bottle you need to fix the nipple. It will blow air inside the tank. After that, the spray gun must be removed from the spray can. To do this, you need to saw the body of the container with a hacksaw. The spray module with valve must match the diameter of the neck of the bottle.
The valve must be attached to the cork from the bottle by cold welding. The connection must be tight. This is a prerequisite. After all, the system works under pressure. After the manipulations, the device is tested under a pressure of 3 atm. You should also try to apply paint on the training surface.
Vacuum cleaner spray gun
There is another way how to make a do-it-yourself spray gun. If you need to paint the walls or ceiling, a hand sprayer will be quite difficult to apply. For processing a large area, a device with an automated paint supply will be required. In this case, a refrigerator compressor or (which is simpler) an old vacuum cleaner is used.
Similar designs well spray water-based paint. It is not suitable for powder dyes. It is also worth considering that only an old Soviet-era vacuum cleaner is suitable for such work. Their design was significantly different from modern models.
The hose of the old vacuum cleaner could be connected to both the inlet and outlet nozzles. This allowed the equipment to work both blowing and blowing. It is the second mode that will be required when creating a spray gun. If the owners had a similar unit somewhere in the pantry, this would be an ideal option for painting walls and ceilings.
Spray gun making
Do-it-yourself spray gun is assembled from an old vacuum cleaner. In some cases, a new model is also suitable for this, which is no longer planned to be used for its intended purpose. In such a vacuum cleaner you will need to change the direction of traction. To do this, change the poles on the terminals. They are adjacent to the stator and rotor.
After the unit begins to work in the desired mode, you need to select the appropriate capacity (bottle) for the paint. The neck of such a container should be wide. The cork should have a rectangular ledge. It will allow you to insert here the tube from the gel pen at a right angle. You can also use a dropper for these purposes.
Holes are made in the lid and tubes are inserted into them. One of them will supply paint, and the second - compressed air. In the cork, you also need to make another hole. It is necessary so that air enters the bottle. When the volume of paint in the container decreases, a vacuum occurs in the tightly closed container. Another plug should combine the hose from the vacuum cleaner and the paint spray system.
Compressor from the refrigerator
You can assemble the atomizer with your own hands from the compressor, which remained from the old refrigerator. Such a unit will work quieter than a vacuum cleaner. When whitewashing ceilings with lime or water-based paint, such equipment will provide significant material savings.
To assemble such a spray gun will be more difficult. It is necessary to choose a sufficiently large sealed container (receiver). It can be a canister, fire extinguisher, cylinder or other similar product.
It is necessary to remove the compressor with a start relay. Copper tubes need to be sawed off with a hacksaw or a bite to eat with a special tool. Next, the system is included in the network. It is necessary to pay attention to which tube the air is supplied. A gasoline filter from the car is attached to the structural element that sucks it in using a hose and sealant. This protects the spray gun from dust.
Build Continuation
Assembling a spray gun with your own hands, you need to connect a tube to the air receiver to pump air. Hoses of the appropriate size are also used for this. They are connected using a fitting and sealant. You need to install a diesel fuel filter on the receiver. This will prevent moisture from entering the system. The airbrush in this case works more efficiently.
On the board you need to fix both the receiver itself and the compressor. Next, you need to check how the system works. If everything is fine, you can get to work. During the verification process, it is also worth practicing to work with such an aggregate.
It should be noted that the compressor must be installed in the same position in which it worked in the refrigerator. If this is not done, the equipment simply will not work. Also, during prolonged use of such a spray, you need to periodically change the oil in the compressor. To do this, find the third tube in the body of the unit. If all the steps are performed correctly, the device can be used to spray thick water-based paint, as well as whitewash or other types of materials.
Holder
For the spray gun, you can make a holder. To do this, you need a 10 mm thick board. A square of 250 x 250 mm is cut from plywood or wood. A hole in the form of a circle is cut out in it with a jigsaw. It should match the paint tank of the unit. Insert the handle of the gun into the groove. It is cut from the edge of plywood to the hole. The design must be installed on a support of 3-4 legs.
Having considered the options for creating a spray gun with your own hands, you can design a suitable type of design. This will allow the application of paint, whitewashing quickly and efficiently.