How to make a sandblaster
Most of the term - sandblasting - is associated primarily with the production. Many people know that sandblasting clean fresh cast iron billets from scale and slag. Maybe someone saw how they cleaned rust or old paint from metal. Well, and someone got into the hands of glass, matted sandblasting. Most likely it was abrasive blasting, extremely popular in the past. Due to the aggressive impact on the base, the inability to use for new composite, polymeric materials and plastics, as well as harm to health, this method has lost its former popularity. it can be of invaluable help. Ask what? Let's sort things out in order.You can sandblast at home from virtually any kind of scrap, spending a minimum of time and money. To do this, we need the following materials:Do not forget about safety, because sand can get into your eyes or respiratory tract. When working with home sandblasting it is best to use tight clothing, goggles, a respirator and gloves. Work shoes will not be superfluous either. It is also necessary to keep the compressor itself at a distance, because the dust that has turned to dust can clog its air filter,and overheat the engine.Twist the nozzle sting with a tube at the end. The tube of such pistols is usually about 6-10 cm long. We will work with it.We replace the nozzle in a vice and grind off one of the walls of the tube. Since it is made of soft metal, it is most convenient to do this with an ordinary flat or four-sided file. The hole should be a width of not more than 1 cm. The less burrs left on the walls of the machined hole, the freer the sand will go through it into the gun nozzle.Measure the diameter of the tube with a caliper and select a drill under it.It is necessary to calculate its diameter so that the tube of the pistol enters the neck of the bottle very tightly.Now you need to drill the bottom of the bottle at the very neck. We use a screwdriver for this job and drill through PET.Twist the nozzle back into the gun, and fill the bottle with sand. It can be prepared using a sieve, calculating the size of the fraction for a particular type of work and the base.Insert the pistol tube into the hole in the sand bottle. It is worth noting that during operation the sandblasting bottle should remain in a vertically inverted position.
What is home sandblasting used for?This setting can hardly claim to be a professional tool.But in a private house or a farmstead where repairs do not end, such an aggregate will be very useful. Well, if you need to clean the old metal container from rust, repaint the old fence or doors and windows, with our sandblasting such works will be just a joy.
- Pneumatic gun to blow off dust;
- Plastic bottle with cap (PET) ;
Getting to the manufacture of sandblastingThe first step is to prepare a pneumogun, or rather its spray nozzle. Before removing it from the gun, do not forget to mark the area of the hole for the supply of sand. It should be located approximately in the middle.
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