Cooking on an open fire is not just a culinary process, but a real ritual that requires reliable and sustainable equipment. Homemade drive-stamp It has long established itself as an ideal option for a cottage, garage or picnic, combining strength, accessibility and aesthetic appearance. The use of used wheels allows you to give a second life to scrap metal and create a design that can withstand the weight of a heavy casing with contents without the slightest risk of overturning.
Unlike purchased tripods, which often stagger or burn out, the steel structure of the disc has an impressive mass and rigidity. Stamped or cast The drives (depending on your preferences and budget) make a great frame for the hearth. It is important to note at once that Only steel disks are suitable for the manufacture of the hearth, since alloy (cast) can crack at a sharp temperature drop.This makes them potentially dangerous for open fire.
In this article, we will discuss in detail the entire process of creating such a product: from the selection of materials and tool preparation to the final painting and the first ignition. You will learn how to properly unclose the metal, what seams will ensure durability and how to protect the structure from rust. This guide will help you avoid the typical welding mistakes of beginners and create a thing that will last decades.
Selection of materials and preparation of tools
The foundation of any high-quality homemade is the right choice of raw materials. To create a solid foundation, you will need the car drive itself first. The best option is considered to be stamped-iron from classic VAZ models (R13, R14) or similar foreign cars. They are made of forging steel, which perfectly tolerates high temperatures and is easily welded with conventional electrodes.
In addition to the disc, for the manufacture of legs and jumpers you will need a profile pipe or corner. The pipe cross section is selected based on the desired height and load: for a stationary version, a 40x40 mm or 50x50 mm pipe is suitable, and for lighter structures, 25x25 mm can be used. The thickness of the metal wall should be at least 2-3 mm so that the structure does not lead from the heat.
For cutting metal and preparing edges, an angle grinding machine (Bulgarka) with a set of cutting and stripping disks is necessary. Welding works are performed by a semi-automatic or MMA inverter. If you plan to make removable legs, bolts and nuts of the corresponding diameter will also be required, and heat-resistant paint is required to protect the product.
- 🔩 Car drive (Steel, without deep corrosion and cracks).
- 📏 Profile tube Or a metal corner for legs.
- 🔥 Welding machine and consumables (electrodes, wire, gas).
- 🛡️ Remedies (Mask, Stealing, Glasses) for safe operation.
⚠️ Warning: Never use disks with deep corrosion foci for the manufacture of the focus, especially in the welded rim seam. When heated, the rusty metal can lose strength and burst under the weight of the casing.
Design and design drawings
Before taking on the Bulgarian, it is necessary to clearly imagine the final result. The design of the stand from the disc can be performed in several versions: with the legs welded dead, with removable elements or in the form of a transformer. The simplest and most reliable option is a monolithic design, where the supports are welded directly to the rim of the disc.
The height of the stand is a critical parameter that affects the comfort of cooking. The optimum height is considered to be 70-80 cm from the ground to the top of the disk. This allows an adult to stand comfortably next to the cauldron without leaning too low. When designing, take into account that the disc itself has a height of about 15-20 cm, so the length of the legs should be approximately 50-60 cm.
For stability of the legs it is recommended to dilute to the sides. If you use a profile pipe, it can be welded vertically, and then weld additional struts or make the lower ends diverge. In the case of using a corner, it is often welded at an angle, forming a stable pyramid. The drawing must also be presumptive.
Technology of cutting and preparation of metal
The manufacturing process begins with marking and cutting the workpieces. If you use a profile tube for legs, it must be cut into 4 or 6 segments of the same length. Accuracy is important here: a difference of even 5 mm can cause the stand to stagger (the “lame table effect”). Use a building coal mine and marker to apply cutting lines.
The disc itself also requires preparation. If you want ash and coals to fall down rather than accumulate inside, you can cut a window or drill a series of holes in the central part of the disk (where the holes under the hub are usually located). However, many masters leave the bottom intact to create an inflating furnace effect by regulating the thrust through the lower openings of the disc.
The edges of all cut parts must be carefully cleaned with a petal disc. This is necessary not only for aesthetics, but also for the quality of the weld. Dirty, rusty or colored metal is poorly boiled, which leads to the formation of indigestion and a decrease in the strength of the compound. The metal in the welding areas should shine.
- ✂️ Marking up pipes, taking into account the stock for welding (1-2 mm).
- 🔪 Cutting 45 degrees for better fit (if required).
- ✨ Cleanup. edge to metallic luster.
- 🧹 Degreasing surfaces before welding.
Pay special attention to the central holes of the disk. If you plan to use a stand for very large casings, the diameter of the hole may be small. In this case, the central “peak” of the disc is neatly cut out by the Bulgarian, leaving only the outer ring and spokes. This will increase the diameter of the seat under the Kazan.
Product welding and assembly process
The construction is the most important stage. First, it is recommended to perform the capture of all elements. Set the disc on a flat surface, put the legs vertically and slightly grab them with welding in 2-3 places. Then flip the design and check the geometry: do all the legs touch the floor? Is the CD worth it?
If the geometry is satisfactory, you can proceed to the cooking. The seams should be solid and sealed, especially in the upper part where the disc connects to the legs. The load on the break here will be maximum. Use the technique "corner" or depending on the thickness of the metal, choose the current strength. For a pipe 40x40 mm and a disk, the current will be optimal 90-110 Ampere (for electrodes 3 mm).
☑️ Quality control of welding
To strengthen the structure between the legs, jumpers can be welded from the same profile pipe or fittings. This will create a rigid contour that will not allow the legs to “scatter” to the sides under the weight of the casing. The jumpers are boiled at a height of 10-15 cm from the ground. Also, it is desirable to weld metal pentacles (squares from the sheet) to the lower ends of the legs so that the legs do not fall into soft soil.
⚠️ Attention: When welding thin-walled elements of the disc and thick legs, the heat sink will be different. The disc can quickly overheat and deform. Make the seams short scattering, allowing the metal to cool to avoid warping the structure.
Corrosion protection and decorative finishing
The finished welded structure looks harsh, but the metal without protection quickly rusts, especially given the temperature changes and humidity outside. The first step of processing is the removal of welding splashes and slag. Use a hammer and a hard brush. If possible, it is better to propescojet the product – it will remove all rust and old paint, creating the perfect adhesion for the new coating.
For staining, only special heat-resistant enamels are suitable, which withstand heating to +600...+800°C. Ordinary alkyd paints will burn and peel after the first ignition. The paints in aerosol cans for grills and ovens (black, silver graphite) have proven themselves perfectly. They should be applied in 2-3 thin layers with intermediate drying.
Some masters go further and decorate the stand with forged elements, make curly slots in the rim of the disc or weld shelves for spoons and plates. The inner part of the disk, where the fire burns, is not necessary to paint, there is a natural protective layer of scale, which is even more useful than paint.
How to replace heat-resistant paint?
If there is no special paint, you can use the method of rotting (calcination with oil) or leave the metal uncoated, regularly lubricating with vegetable oil after use, as is done with new casings. However, paint is faster and more aesthetic.
Comparison of design options
When choosing the design of your future stand, it is useful to compare different approaches. Below is a table that helps you decide on the type of design depending on your needs and welding skills.
| Type of design | Pluses | Cons | Difficulty |
|---|---|---|---|
| Monolith (legs injected) | Maximum strength, does not require bolts | It is inconvenient to store in the trunk. | Low. |
| Transformer (removable legs) | Compact storage, transportability | Need accurate holes, risk of backlash over time | Tall. |
| Tripod disc | Classical appearance, stability on irregularities | More difficult to manufacture (needs a rotary mechanism) | Medium |
For a stationary installation in the yard of the house or in the gazebo, definitely choose a monolithic option. It is easier to manufacture and more reliable. If you plan to take the kazan with you on fishing or long trips, it is worth spending time making flanges for removable legs.
For the convenience of carrying a heavy structure to one of the legs or to the rim of the disc, you can weld a metal stick. This is especially true if you often move the casing from place to place.
Operational and safety rules
Even the strongest stand requires the right handling. The main rule is not to put a red-hot cassain on cold wet grass or snow, if the legs of the stand do not have wide supporting fives. The metal cools down quickly, but a sharp temperature drop can contribute to accelerated wear of welds.
Use only dry wood or coal. Burning plastic, rubber or painted wood will lead to the release of caustic smoke, which will soak into the walls of the casket and spoil the taste of the dish. In addition, aggressive chemicals during combustion can accelerate the corrosion of the support metal.
Regularly clean the inside of the disk from ash. The accumulated moisture in the ash is the main enemy of the metal, causing rapid rotting of the bottom. After the end of the season or prolonged downtime, it is recommended to lubricate the metal parts (especially welded seams) with engine oil or solidol.
The durability of a disc stand is 90% dependent on the quality of welds and regular maintenance of metal, not just the thickness of the walls.
Can I use cast discs for a stand?
Using cast (light alloy) discs is not recommended. They are designed to work at temperatures up to 100-150 ° C. Open fire will heat the metal to 500-800°C, which will lead to loss of alloy strength, deformation and possible destruction of the structure under the weight of a full casing.
How high do the legs make for comfortable cooking?
The optimal height of the upper edge of the stand is 75-85 cm from the ground. This corresponds to the height of a standard kitchen table and allows a person of average height to stand flat without slouching over the casket during slicing of foods or stirring.
Do I need to make holes in the bottom of the disk?
Yes, air blowing holes are necessary for good firewood burning. If there are few regular holes in the center of the disk, they can be drilled additionally or cut out the segments between the spokes. Without good traction, wood will smolder, not burn.
How do you paint a stand so that it doesn't burn?
It is best to use special heat-resistant enamel with the marking "for furnaces and grills" (thermal resistance up to 600-800 ° C). The paint will burn when used for the first time. A good alternative is to crow or calcinate with oil.