Airbrush compressor

Airbrush compressor made from refrigerator compressor.

WARNING!

If you don't know what you are doing and have no basic knowledge about handling compressed air, please don't even think about doing this. You have been warned.

Now, to the compressor.

I am very amateurish painter, mostly painting "dustcatchers", as my wife call miniatures. I have one " nail painting airbrush set", but it is loud and lacks power, adjustment and everything. In the times of Great lockdown 2020 i had enough time to finally finish my compressor design.

All components used should hold 10bar operating pressure (fittings, hoses...) Again, this system works at 2.5bar!

All structural hardness is provided with 25x2 aluminium flat bars and fi12 pipes for distancing top and bottom tank holder. Compressor itself is heavy and I don't think only printed parts would hold it.

Rough sketch of wiring is provided. Pressure inside system is regulated with safety valve, adjusted to 2.2bar. When pressure will reach that, valve will start to leak excessive air out. There is some constant hissing while compressor works, but I can live with that. Due to the nature of this kind of compressor, a good moisture separator is required.

Unfortunately, I had no success with pressure switch (3/2bar) since my compressor only starts when system is empty.

Mandatory

Hose that goes from compressor to the first air connector has to be reinforced/braided! Air coming from compressor is hot and ordinary hose will be softened and will blow! Don't ask how I know this. Get at least 20cm of hose.

I don't beleive this compressor could run in a professional matter, it would overheat, but for me, 5hrs/week max it is more than enough.

All printed parts are made with ASA, except leg and manometer holder are TPU.

4 walls, 0.25 layer, 5 layers top and bottom. No supports required,

This design fits loads of compressor types, since it is height and depth adjustable with alu flat bars. bend them according to what you need.

Tested at 3bar, operating at 2.5bar.

STEP file is included.

Parts needed:

Compressor

4/6 air fittings 1/8"

4/6 air connectors T

4/6 hose

6mm (inside) braided hose.

Air separator

Safety release valve 2.5bar

Adjustable pressure valve

2,5m 25x2 aluminium flat bar

0,5m fi12 aluminium pipe

M3 screws and brass hot pressed nuts different lenghts

4x M8 screws with nuts.

Tank ( I used empty 2kg fire extinguisher)

Again, if you don't know what you are doing, pass this design.

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Print Settings

Printer Brand:

Creality

Printer: 

Ender 3

Rafts:

No

Supports: 

No

Resolution:

0,25

Infill: 

20

Category: DIY