Instructions for the manufacture of a home -made compressor for the airbrush

For DIY enthusiasts and hobbyists, building a homemade compressor for an airbrush can be a satisfying and affordable project. You can construct a dependable compressor that will give your airbrush a consistent airflow, simplifying and elevating your painting projects with a few basic supplies and easy-to-use tools.

We’ll walk you through every step of the procedure in this guide, from assembling the compressor and testing it to obtaining the required supplies. A pressure switch, an old refrigerator compressor, and a few fittings and hoses are among the common supplies you’ll need, and you can get them online or at your neighborhood hardware store.

This project will not only help you save money but also deepen your understanding of air compressor operation. Furthermore, creating something by hand has a certain sense of fulfillment. Building your own compressor is a great way to improve your airbrushing setup, whether you’re an artist, model maker, or just a tinkerer.

Now let’s get going and transform that outdated refrigerator compressor into a useful tool for your artistic endeavors. You can quickly assemble a homemade airbrush compressor by following our easy-to-follow instructions.

Pros and cons of a home -made device

A homemade airbrush compressor has many advantages and disadvantages, just like any other technical device. Globally speaking, the "manual" compressor’s primary benefit is its aesthetic appeal. Working with a personal assembly machine is always pleasant. It feels very much like you made this compressor, which is very conducive to working.

Additionally, while the purchased item has the potential to produce a very loud noise, in most cases (when the fire extinguisher, electric pump, or refrigerator compressor is used as the basis) a low noise level is noted during operation.

Regarding cost, the notion that a homemade compressor is inexpensive is greatly exaggerated. Since the cost of such a product is mostly determined by the components chosen, it is frequently slightly less expensive than purchasing a factory.

Stage first

The "manual" work’s compressor is good because it can be made specifically for its requirements. In theory, the receiver is not required if you build a compressor for an outdated single-action airbrush, for instance. This lowers the cost of assembly-related expenses.

However, painting in today’s environment calls for better tools, which is why double-acting airbrushes are used. Since he regulates the airflow, the receiver is required.

Directly compressor

Taking it out of the refrigerator is the most widely preferred method. Websites offering refrigeration equipment for sale will assist in selecting the compressor’s technical specifications. The cost is the primary consideration when purchasing one of these compressors. The air injection characteristics are consistent across nearly all models.


It must be a container designed to operate under pressure with gas or liquid. It is not advised to use plastic canists or barrels under these circumstances. A fire extinguisher will be the first choice for a good receiver. You can also use a propane can, an oxygen cylinder, or a hydraulic accumulator. After choosing the most important details, gathering them all at once is still necessary.

For DIY enthusiasts, building a homemade airbrush compressor can be a rewarding and affordable project. Using easily accessible materials and clear, step-by-step instructions, this guide will walk you through the process. Whether you’re an artist or a hobbyist, you can construct a dependable and effective compressor by following these instructions, which is ideal for a variety of painting projects. Using a tool you built yourself will provide you with a sense of accomplishment in addition to financial savings with this do-it-yourself solution.

Stage Second: Working with nodes

You must adhere to specific guidelines and dependable connections for future high-quality painting when assembling the chosen compressor and receiver.

  1. The first node provides fastener for the receiver.
  2. The second number is in order, but not the degree of importance, – the pressure relay. It is necessary to turn off the car in time when the pressure reaches the peak point in the receiver, and in the case of normalization, turn on. You can do without a relay if you want to break the product you do very quickly. Popular and reliable option-RDM-5. This is a relay used in water supply systems. The relay can also be obtained from the refrigerator, which served as the compressor donor.
  3. The third node is a manometer that will indicate a pressure in the receiver.
  4. We need a manometer that will help to track the pressure that occurs in the preparation of the air. This requires a gearbox, to which the manometer will be attached.
  5. You need to stock up on a filter. The compressors of home assembly have an unpleasant property of “spit” slightly, so you need to either make a knee of the bend or install filters.

Remember to bring along adapters. You can smear pins into the joints to make them more painful.

Stage third: Assembly in two stages

The node that connects the receiver is the primary source of trouble during the first assembly step. The valve is completely inappropriate for this design when it comes to fire extinguishers. As a result, the appropriate fitting conductor must be cut and welded.

You can assemble things faster and with less care by doing the following:

  1. Remove the control element.
  2. Leave only internal mechanics.
  3. To the remaining exits to choose adapters with internal thread. Squeeze. There is no need to screw up to the “refusal”, since often there is a inconsistency with adapters.

Making a dependable capture and greasing everything with pins in or cold welding is sufficient.

For the product to be presentable and convenient, a second assembly stage is required. The device is large (refrigerator details, receiver, several knees, adapters), and it is not always useful to hold it in their hands.

Consequently, a chipboard or oak board is employed as a stand. Self-tapping screws are used to mount the machine, and for ease of use and mobility, furniture wheels must be installed on the opposite side. Alternatively, you could construct a cabinet-like structure to hold all the supplies required for painting, such as paint, nozzles, etc. Spare parts (keys, nuts, and adapters) can also be loaded.

Step Description
1 Gather materials: an old refrigerator compressor, a tank, hoses, fittings, and a pressure gauge.
2 Remove the compressor from the refrigerator carefully, making sure not to damage it.
3 Attach the compressor to the tank using the fittings and hoses. Ensure all connections are secure.
4 Install the pressure gauge on the tank to monitor the pressure levels.
5 Test the setup by turning on the compressor and checking for any leaks. Fix any leaks if found.
6 Once everything is secure and working, you can connect your airbrush to the compressor.

Constructing a DIY airbrush compressor can be a satisfying undertaking. It not only helps you save money, but it also improves your comprehension of the instruments you use. These steps will help you build a dependable compressor that meets your requirements.

Never forget that safety comes first. Before using your new compressor, make sure all connections are tight and there are no leaks. By taking the time to thoroughly inspect everything, you can avoid mishaps and prolong the equipment’s lifespan.

You have the ability to further customize your homemade compressor. You may discover features you’d like to add or areas for improvement as you grow more accustomed to how it operates. This project can serve as a continuous learning tool, improving your airbrushing abilities and outcomes.

We really hope that this guide has been useful and encourages you to try more do-it-yourself projects. Making your own tools can be a very fulfilling project that gives your creative process a unique touch.

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Alice Chernyshev

Artist with 15 years of experience, color solutions specialist in interior design. I am in love with the world of colors from childhood, I am happy to share my knowledge and experience.

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