How to make a burner on a tree with your own hands? Scheme of a self-made wood burner

Pyrography is one of the techniques for applying images to hard surfaces of organic materials with the help of a heated object. Wood is mainly used as a basis for the picture. The tool for burning out is a loop of nichrome wire, fixed in a special holder. A wood burner can be made by his own hands in many ways and even provide software control of the device.

However, such a scheme is quite complex, and for its implementation requires equipment that is not available to the masses. However, you can make a fairly simple burner with your own hands literally from improvised materials and a power supply. It has a step-down transformer and an uncomplicated circuitry for controlling the currents on the primary circuit.

The principle of pyrograph action

There are just two questions: how to make a burner on wood and how does it work? In order to understand this, it is necessary to understand the physical principles used in the device. In general, the device operates as follows: a heating element of nichrome wire is heated by alternating current to high temperatures. When it comes into contact with a smooth wooden surface, it becomes charred.

The degree of impact on the material can be adjusted by varying the contact time, its force and current parameters. The first two indicators are determined by eye by the color change of the plate. The current is regulated by a variable resistor mounted on the body of the device. Experienced masters of pyrography pick up the current once in the beginning of work on the image, and then only control the holder.

Materials and components for self-made burnout

The classical scheme of the industrial burner for industrial production is difficult to implement in artisanal conditions. It was modernized by folk craftsmen, as a result, the control of currents was transferred from the output of the secondary to the input of the primary winding. So the adjustable soldering iron is arranged. For a fairly coarse heating element, which, in fact, is a piece of nichrome wire, the shape of the output voltage is not particularly important.

What is more important is the possibility of more or less accurate adjustment and stability of the voltage. To achieve the necessary indicators is simpler, varying the parameters of the primary circuit. Of particular importance is the section of the wire in the secondary winding - it must be sufficient to withstand the current load on the heating element. Calculations of the values are made by the formula, where the resistance is equal to the ratio of voltage to current (Ohm's law).

Making a holder for a pyrograph

The basis of it is a handle made of a strong dielectric material. It can be a ready-made handle of a soldering iron made of wood or a heat-resistant polymer. The voltage to the tool is fed through an electrical double-wire with double insulation type PVS. The cross-section of the conductor must be at least 1 square kilometer. Mm, which is enough to ensure the safe operation of the master of pyrography.

The burner itself is made in such a way as to exclude the possibility of electric shock to a person. An important detail is the holder for the nichrome heater, which is nothing more than a piece of a filament spiral for an open-type electric cooker. It is fixed on a board made of textolite or other material that is resistant to high temperatures.

The best fixings for the filament are wiring terminals with fixing screws. They are withdrawn from the plastic case and attached to the insulator. On the one hand, a feeding wire is inserted in them, passed through the handle, and on the other hand - a nichrome heating element. After assembly, the plate is carefully inserted into the handle cavity and fixed there.

Assembling and setting up a pyrograph

The self-made wood burner consists of a power pack and a holder with a heating element. It is connected to the secondary winding of the step-down transformer. For this purpose, standard screwed wiring clamps are installed on the board. The primary circuit of the transformer is controlled by a simple electrical circuit of three resistances, such an amount of capacitances and two triodes.

Burner on wood with his hands mounted in a plastic or metal casing. For the assembly of the control circuit, a printed circuit board can be used or a so-called hinged installation is made. After assembly, the device is connected and configured. It reduces to checking the limits of voltage regulation at the output of the secondary winding, they must be embedded in a gap of 3 to 8 V.

Application of the device to its intended purpose

Burner on wood, made by his own hands, is used to create paintings and other images. The procedure for working with it is as follows: the photo is transferred from the paper to the prepared surface by means of a conventional carbon paper. Then, with the help of a well-heated device, lines, dashes and dots are drawn, which will create a holistic image.

Conclusion

The wood burner, assembled from the available materials with his own hands, will be an excellent tool for the creative development of the personality. This occupation is equally fascinating for an adult and a child. The growth of the artist's skill occurs during the appearance and consolidation of the skill of working with the device.