Probably the best invention for the woodworking industry was the band saw on wood, which allows you to cut the log as accurately as possible, while the amount of waste and shavings is minimal.
To understand the importance of such saws, you need to return to the past for a moment. The old saws that were used for sawing wood were huge, had significant drawbacks, a large thickness of cuts, a fixed gap, which allowed working effectively only with logs of a certain thickness. If the logs were thicker or thinner, then the amount of waste was simply amazing. But under the USSR, nobody paid attention to such trifles, because the raw materials were practically free.
The situation changed radically with the advent of a market economy, because the tree had already been bought, and no one wanted to pay money for waste. The old sawmills were replaced by a band saw on a tree. Due to its design, it can saw off boards of any thickness, makes minimal cuts, resulting in huge savings in raw materials and the ability to make boards for different workpieces. Also, band saws for wood are very compact, they can be transported without much effort to a new place to reduce the cost of delivering raw materials, and if a breakdown occurs, an ordinary locksmith can fix them.
The simplicity of the construction, which has a band saw on wood, is simply amazing. This is a fixed base on which the log is attached, and a carriage with two drums on which the saw is pulled. The drums begin to spin and the saw cuts, enough for the work of an average high-speed electric motor. The carriage moves along the log and the board of the required thickness is cut, the thickness of each subsequent board is regulated by the operator, which allows to obtain the maximum quality of the product. Such band saws on wood are called horizontal. Their advantages are undeniable.
In addition, a band saw on a tree can be vertical. Such options are used for working with small parts, as well as for cutting short logs. Here the design is a little different, but also extremely simple. The saw on the drums spins vertically, and the carriage with the clamp into which the material is inserted moves along it. Working with such a saw is much safer and more accurate than with other woodworking machines.
The band saw blade itself also needs constant care - in sharpening and divorce. Sharpening is the simplest of operations with blades, it is carried out on a special machine, which is included in the set of a band saw for wood. The divorce of the teeth of the blade determines the thickness of the cut, as well as the intensity of the emission of sawdust. Each tree has its own divorce rate, the minimum is 5 millimeters in each direction for hardwoods, the maximum is 25 millimeters for soft breeds. Compliance with these standards ensures long blade life, the quality of the products obtained, as well as the speed of work. During the change of the canvas on the drums, it is necessary to monitor the strength of its tension in order to avoid marriage of products or rupture of the canvas.