How to cut a round log with a saw correctly. SPILO TOMSTION selection

Spilling techniques with a circular saw with and without devices, as well as what can be cut and how to properly use it

To work with a hand circular saw, special qualifications are not required. It is enough to try the first time, then for a few cuts the user will understand the possibility of the tool: how quickly he saws, how to crush, so as not to “strangle” the engine, how the electric saw behaves when starting, how the cord is stretched so that it does not fall under the saw. This is about simple sawing, for example, firewood.

It is a little more difficult to make even cuts and achieve an accurate carpentry cut (plus/minus 1mm or degree). It is difficult to achieve more accuracy with such a tool, although in principle and possible. But such tolerances in most cases are permissible, taking into account the fact that wood is able to dry out and swell, changing the volume and size with a large amplitude (up to 10%). For jewelry accuracy, other tools are used, including hand hacksaws with a small tooth.

How to set a saw saw for a flat sawing?

The saw disk should be strictly perpendicular to the support platform. This is visible both in the position of the disk, and on the scale of degrees on the adjusting arc. If the disk is at an angle:

With a tightening should be more careful. On some models, with excessive puff, you can break the thread or break off the head.

Further depends on how and what to saw.

The board across

With such a saw, the length of the workpiece should be accurate. The desired size is measured with a roulette. With a pencil (marker, sharp object), two marks are made. at first the future drank and at the end. Tags are connected by a line. This place of the future drank.

On the front (end) of the platform of each manual circular there is a risk. It is located opposite the disk and shows where to go. The risk is combined with marking the cut and sawing, making sure that the risk goes on marking.

On different hand saws, cut can be shifted 1-2 mm to the left or right from the risks. Therefore, when using the new saw, you should try on unnecessary blanks, where the cut will really go out.

Sometimes it is more convenient to make a strip and dick not in place, but on the left edge of the platform. Then it will be easier to control the accuracy of the cut. With this markup, the full length of the workpiece is noted, the disabled saw disc is put to it and on the left is a mark along the edge of the platform.

When sawing problematic blanks (solid, thick, steamed or jerking wood with twisted fibers), there is a possibility of a disk leaving from the mark. In such cases, instead of the mark, from the edge of the platform is screwed onto screws or pressed with clamps a guide bar. Drinking, pressing the platform to the bar.

Board along

The easiest way to make a drink along the entire length on a trimming board. For this, a support bar is used on two rods, which is included in the set of most models. Also, it is also called parallel emphasis.

Parallel emphasis

The rods are inserted into the audience on the platform. Set the desired cut width and fix the rods with screws. Drinking, pressing the support bar to a trimming board. Pencil markings do not need.

They are required when you need to cut off the wedge.shaped blank (one end wider, the other already) and for the sawing along or cutting of the droppings of an unsolved board. In these cases, a disc is carried out according to the marking, similarly as with the above transverse cut. But it must be remembered that the longitudinal cuts are many times longer than transverse.

At the same time, the engine works with a fairly large load, especially on thick boards (35-50 mm). Therefore, they saw, moving the circular with such a speed that the engine does not lose speed, and the disk manages to choose wood and throw the sawdust from the cut.

Than sawing?

Before you bring down trees (chainsaw or other unit), you need to learn about the most suitable option. The choice of tools depends on the number of logs and available means. For business, it is naturally better to buy a small sawmill. But for small construction, this is not necessarily. The usual chainsaw is also suitable. If you compare it with an electric tool, then you should name several advantages:

  • high power;
  • The duration of work without turning off the engine is more than an hour;
  • withstands high humidity;
  • you can work in the forest, far from the source of electricity.

To correctly saw a chainsaw, you need to have several devices with you:

  • A machine fixing the trunk of trees.
  • Special nozzle and frame, serving the guide.
  • The chainsaw itself should not be a simple household tool, but a professional mechanism.

It is these units that are ready for long.term work.

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The frame for the chainsaw can be purchased or made with your own hand. Using it, the width of the drinked board is adjustable. A common option. the manufacture of this device from an iron school chair.

How to saw along logs?

To obtain even boards, you need a guide. There are professional mini.pylorams, but the device correctly made by your own hands will not differ from an expensive device. The subject must be mounted on the saw tire with bolts.

Before it is properly cutting the trees with a chainsaw, you need to purchase and install a chain on it for work along the log. If there is no way to go to the store, then you just need to sharpen the links, observing the angle of 10 °. The chain must be sharpened periodically, since it will have to be sawed along the log without frequent breaks. This will greatly facilitate the work.

The wooden guide is necessarily fixed before the start of sawing. The device of the frame and other devices is shown in the photo. The design should turn out that can hold the log itself and at the same time have a fairly wide emphasis for the frame fixed on the chainsaw.

For convenience, the structural elements are fixed with self.tapping screws, and not with nails that are difficult to extract. After that, the chainsaw is placed on the guide board, and the first cut is made. If you need a beam, then the log turns several times, and the described operation is carried out on four sides. This is done in the case when you need even boards. The frame rests already on the flat surface of the log and, after the next drink, it turns out the first board. Further, everything happens similarly. If the even edges of the boards are useless, then you can saw without turning the log.

Cutting schemes

You should decide in advance to the scheme of work.

One of the most important tasks of the resident is the choice of the most rational cutting scheme. The correspondence of the materials set, the amount of product output from the unit of the forest and, as a result, the profit of the enterprise, will depend on this.

The master must have an impressive experience and a special flair for the material in order to determine the order of work in advance, where to start and how to act in the process. Such a skill comes only over time as a result of long work on the sawmill.

There are three standard cuts of sawing:

Scheme of sawing Peculiarities
Circular After removing the first horseman, the log is turned over by 180 ° and put on the resulting line. Then, in the process, it is turned 180 ° or 90 ° Completely, at least five coups are usually practiced.

This is the most rational and economic profitable way, however, in the absence of mechanisms for the coup with manual labor, the resulting performance may be reduced

The first drank

Of all the problems facing the saw by the saw, the decision on which side of the log to start sawing (and therefore, which surface of the cut to open the first) is the most important. (As already mentioned, we divide the log into 4 faces, each of which stretches along the entire length of the log and takes 1/4 of its circle). The choice of the first face is determined by the position of all other. Before the cutting, the log can be sawn by millions of ways, but only a hundred of them will really benefit! Having made a decision on the first propyle, the saw by the saw out only a few thousand other decisions remains.

In the case of sawing in a circle and sawing of the beam, two basic rules apply.

Rule 1. The worst line of the log is cut first without any accounting for the cone of the log. (Accounting for a run of logs means raising or tilt of the bar so that the drink goes parallel to the bark). Since this is the worst part of the log, it will get short boards and a lot. Since we do not take into account the cone of the log, this gives us the opportunity with the opposite, the best side of the log to carry out sawing parallel to the bark, while without raising or tilting the log. So, more high.quality boards will come out of this best part of the log, moreover, coinciding with a length with a log length.

Rule 2. The first to saw the best line of the tree, given the tag of the log. This means that the log needs to be lifted or tilted so that the first drink is produced in parallel to the bark.

The final result of both methods will be approximately the same, but the second method has one advantage: in this case, it is easier for the saw by the sawing man to position the log (t. e. to rotate it), because the open line is the cleanest, there are no defects on it. In the case of rule 1, the best part of the tree is opposite to the open face. It is not visible, and it is impossible to position the log accurately. Usually, if wood is of good quality, rules 1 and 2 work almost the same. However, you should encounter a worse log, take up the rule 2.

Slinging logs on a chainsaw boards

Very often there are situations when you need to make a very small volume of boards or bars for your own needs. Of course, buying machines in this case is absolutely not an option. Having certain knowledge and skills, it is much more profitable to cut the logs with your own hands, using a chain electric or gasoline saw. Despite the fact that this work is quite laborious, the result is quite justified.

Most of the experts believe that a chainsaw is better suited for this purpose. Such equipment has high power and can function without interruptions for a long time. In addition, the work of the chainsaw does not need electricity, so you can work far from the source of power supply, for example, immediately on the plot.

In order to cut a log onto the boards using a chainsaw, you will also need special tools such as a mechanism for fixing a log, a frame frame on a chainsaw, as well as a guide for the sawing. The frame frame needs to be attached on the tire of the chainsaw so that it is possible to adjust the gap between it and the chain. This will make it possible to create boards with different thicknesses. The chain should be purchased special, for longitudinal sawing. She has a special angle of sharpening of teeth. The ruler-controling can be made of a metal profile of the required length or even hardboard.

Before you start work, you need to remove the entire bark and the remaining branches from the blanks, as well as carefully examine the log for various flaws. Thus, you can choose the most suitable cutting scheme and, therefore, reduce the volume of possible waste.

If you carry out the longitudinal sawing of the trunks, you need to make sure that the resulting lumber is the same density over the entire width. Since the density of the wood from the northern part of the log is much higher than with the southern one, the cut is carried out in a plane directed from east to west (or in the reverse order).

First of all, you need to remove the horses from two opposite edges of the logs. As a result, you will get a double.circuit beam, which is further subjected to the cut on equal thickness of the board or other lumber, according to the planned cutting scheme. The final product is an unspeakable board, with which then the edges are necessarily removed.

How to cut down the trees with a chainsaw: the main points

Valka of the tanks of the chainsaw is made respectively of the thickness of the barrel and the tree of the tree. For thin trunks, it makes no sense to use heavy saws. there is a greater fuel consumption and oil, and you get tired of it stronger. The following pattern is used for a roll:

  • Thick trunks of more than 600 mm. a heavy canvas from 650 mm
  • Medium trunks from 300 to 600 mm-the middle canvas350-650 mm
  • Thin trunks up to 300 mm. a canvas up to 350 mm.

If you work with dense and durable wood, such as oak, then in this case even for thin trunks it is better to use medium saws, and for medium and thick. heavy saws.

  • Before cutting down the tree with a chainsaw, evaluate it: the thickness of the trunk, at what angle the barrel is tilted to the surface, in which direction it will fall at the roll, whether there are foreign objects in the fall zone, whether the barrel will hook with branches for other trees and so on.
  • Calculate the trajectory of the trunk falling based on the inclination and other factors to understand how to correctly cut a chainsaw tree in the right direction.
  • Cut the branches and branches to the maximum so that they do not interfere with the roll.
  • Start the roll according to the scheme.

Depending on what thickness the tree has and at what angle it is tilted, a scheme is compiled, how to correctly cut the tree of a chainsaw. An example of such a scheme for a barrel with a thickness of 350 mm is below:

Estimate how you will produce a cut of the barrel, you can outline a fishing line for a trimmer with a marker. On the side to which the barrel will fall, make the upper cut at an angle of 45-60 degrees to the line of the main sawdown, 20-30 mm below the virtual line.

After the corner cut is made, cut the small cut in parallel, approximately 20-25% of the total diameter of the barrel, so that the line for the trimmer of the lower cut is connected to the upper cut. It turns out that you, as it were, cut off a piece from the barrel. thus, the necessary angle is provided so that the barrel falls in the right direction.

The main or gross drink is made from the opposite side strictly along the virtual line. The length of the gross drinking cut is approximately 65-70% of the total thickness of the barrel-there must be a distance between it and the additional cut.

As you approach the additional drink, control the situation. If the barrel begins to move or a crunch of wood is heard, immediately remove the saw and insert the wedge into the main drink. It is recommended to use a long wedge. with the help of a hammer or sledgehammer, you will expand the cut, and the barrel will fall in the direction in which you need.

That’s all you need to know for how to cut a chainsaw of trees without injuries and as quickly and efficiently.

How to cut a log onto the boards of a chainsaw at home

The fallen barrel can be cut into churbaks on the ground if you plan to use wood in kindling and firewood. How to cut a log of a chainsaw across. you do not need to explain, here the technology is simple, the main thing is to fix the log so that it does not swing and does not move during cutting.

But if the trunk is good, you can cut the log onto the boards of a chainsaw at home and get absolutely free building materials necessary in your own farm.

In order to cut the log along the chainsaw, several devices are necessary:

  • Bed or frame where the log will be fixed. For its manufacture, a corner, a channel or pipe is used, thick enough to withstand the mass of the log.
  • Chainsaw with a nozzle. You can use a gas tank, a debarker, a vertical or horizontal nozzle. The most accurate and effective dissolution of the logs provides precisely the horizontal nozzle, but it can only be used when the saw length is no less than the thickness of the log. If all this is not, you can do without nozzle. it is enough to make two simple devices, with which the logs of the chainsaw will be cut on the boards will happen easily and simply.
  • Slinging the log onto the boards of a chainsaw can be independently carried out without preliminary emphasizing. it is easier to do it later.

Consider the easiest way to dissolve the log onto the boards, that is, without specialized nozzles. It is necessary to make two simple clamps, cooked (the best option) or assembled using bolted joints.

These clamps have a T-shaped shape and length of about 500-600 mm. Another plate or corner is attached to a short “stick” with the help of bolts, and there should be a slightly larger distance between them than the thickness of the chainsaw tire.

The clamps are attached to a homemade carriage carriage. when dissipating the log on the boards of a chainsaw with its help, the carriage will move.

Holes are made on the clamps. this will allow you to adjust the height with a longitudinal cut of the logs of a chainsaw.

The assembled design is installed on the frame. Before cutting the log onto the boards, install its special stand, so that, as necessary, it can be lifted. The best option is two car jack.

After the first cut of the chainsaws of the chainsaw occurred, it rises to the required height and the next cut is performed according to the same scheme.

Types of working nozzles

When sawing logs of a chainsaw, various nozzles are used.

  • Dry.cutting nozzle. Used to saw the logs along, the process takes place in a horizontal position. After work, the master receives the same thickness from the product. Ready.made materials are subjected to the drying process, after which the boards are used in construction. In appearance, the device is a small frame, it is attached to the bus on each side.

How to quickly and EASY dissolve a log on a CIRCULAR SAW!!!

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  • Drum debarker (fascin). With the help of such a nozzle, it is easy to dissolve the log, it works due to the cuneiform transmission. Attached to belts on both sides, for this special pulleys are used. The speed of rotation of the shaft depends on the size of the pulleys, so the operability of the nozzle is easy to change. This technology forces the master to carefully monitor each stage of the process, some experts use an assistant during this cut. But this option requires increased safety measures.
  • Slinging a lightweight nozzle. The method is not highly performance, but is used quite often. The element is mounted on one side, but the blanks are a little uneven. Such materials are necessary for the construction of sheds or fences.

Features of sawing using a home.made tool

You can cut a log onto the boards without difficulty using an independent tool. It is easy to make it. To do this, you need to perform the following actions:

  • As a support, you need to use a frame from a school desk or a pipe with a section in the form of a square, its optimal size is 20×20, and more is allowed.
  • It is necessary to build two clamps, mount the cross member with two holes under the fitting bolts on one end, make a ledge for the tire in the middle.
  • For longitudinal sawing of the logs on the boards, you need to make a support frame, its width should be less than seven to eight centimeters.
  • Then, two parts ten centimeters long are welded to both sides, holes for bolts are made, a handle is attached in the middle for ease of work.
  • Then you need to insert the clamps into the grooves, install the tire, fix everything thoroughly.

It is easy to work with a home.made tool, this will require goats, they will serve as a support. In addition, you need to prepare a metal rail or a board for using it as a guide element. A log is laid from below, the required height is set for work.

How to cut a tree correctly

With a roll of trees, a chainsaw must be correctly selected: it must correspond to the thickness and rock of the wood. For example, if you need to bring down thin trees, then there is no point in using heavy and powerful units. After all, they have a large consumption of fuel mixture and lubrication, and working with them is much harder. It is recommended to adhere to the following rules:

  • For trunks with a diameter of 600 mm or more, a heavy canvas (650 mm) should be used;
  • for trunks of medium diameter 300-600 mm-a medium-sized canvas 350-650 mm;
  • tick of thin trunks (up to 300 mm) can be carried out with a canvas up to 350 mm.

If you have to work with solid wood (oak, beech, cherry, apple tree, pear, etc.D.), it is better to use the middle canvases for thin trunks, and heavy-for trunks with a diameter of 300-600 mm or more.

The stage of preparation

Valka of the tanks will be difficult, and sometimes dangerous without a stage of preparation.

  • Make sure that there are no people, animals, buildings or other trees in the place of the alleged fall of wood.
  • It is required to prepare very carefully for the roll of trees near the reservoirs. If the sawn object falls into the water, then you will have to make a lot of effort, including using the technique to get it and saw it.
  • If you need to lay the cutting tree in a certain place, then you can tie to the top of the barrel or to its middle cable, and with the help of a winch or other mechanism to be forcibly tilted in the right direction.
  • Before you cut a tree, take care of the departure ways if an unforeseen situation arises (if possible, remove all the obstacles that may prevent you from leaving the danger zone).
  • Provide the possibility of entering the spinning and cut wood of transport for loading and exporting.
  • If there is a roll of large wood, then it is first necessary to exclude the possibility of falling large branches in the process. It is recommended to rent a lift or use the services of industrial climbers to cut the problem branches.

Rules for the roll of wood

In amateur practice, it is allowed to bring down trees using a single.pounding saw, only when there is a roll of low plants with a trunk diameter of not more than 150 mm. But sawing thick trees is required, observing standard technology.

  • The very first, the upper cut should be done on the side of the plant in which it should fall as a result. It is done at an angle of 45 °, with a deepening of the ¼ diameter of the barrel. The second, lower tiles are carried out horizontally, until the incisus of the cuts.
  • The third tied is called gross and is the most responsible. It is performed on the opposite side of the previously executed wedge.shaped cut, parallel to the second tile (see. The drawing is below), but above it by 5 cm. Also, according to technology, gross tiles should not be finished to the end, that is, to the wedge.shaped cut. It is necessary to stop without finishing about 1/10 from the thickness of the barrel, so that the remaining whole part acts as a kind of hinge.
  • So that the saw does not jam in the propyle, it is necessary to use wooden wedges. Metal wedges cannot be used, since you can damage the chain if the saw gives a reverse blow.
  • When performing the gross drink, carefully monitor the vertical of the barrel. A sudden gust of wind can make its own adjustments, and cut down the tree as you planned, it will not work.
  • After the gross drinking, even before the fall of the plant, it should be quickly, without fuss, extract the chainsaw tire and move to a safe distance. It is extremely unsafe to be near the tree at this moment, since the lower part of the barrel can jump to a height of about 1.5 meters when falling.

If the rule is unfinished, as well as incorrectly arrange the guide and gross incision, then it will be impossible to predict the direction of the fall of the tree.

After the plant is dumped in the right direction, you should cut off all branches on its trunk. For convenience, you need to put a flat wooden wolf with a height of 100-150 mm under the barrel. If this is not done, then it is likely that you will hook the soil with a saw. When the equipment gets into the ground, where there is always sand, the latter enters the tire, namely into the groove along which the chain glides. As a result of the exposure of abrasive particles, not only the shanks of the chain begin to wear out quickly, but the whole tire. Therefore, the question that builders often ask. whether it is possible to cut foam blocks of a chainsaw. is inappropriate.

How to cut a log correctly

The next stage after the wood is plot. its sawing. It is required to conduct it, following certain rules and according to the scheme.

Longitudinal sawing on boards

As easy to guess, the boards are obtained with longitudinal dissipation of the logs. Since the longitudinal sawing is required, the saw chain must be appropriate. In order for the dissolution of the barrel on the boards to be accurate, a special device for sawing the Big Mill logs shown in the following figure is used.

With its help, a log is possible with a diameter of up to 500 mm. The thickness of the resulting board is set according to a special line applied at the struts of the device. It can be purchased already in the finished form or do it yourself by watching this video.

To dissolve the log onto the boards equal in thickness, do the following.

  • Take 2 even boards and connect them at an angle of 90 degrees to make a T-shaped design, as shown in the next photo. It will serve as a ruler and will allow the chainsaw to move exactly. The boards are twisted taking into account the size of the device for longitudinal cut so that the saw does not touch the ruler and passes 10 mm above it.
  • Make 2 G-shaped details that will serve as stops that prevent the rotation of the log. Boards can be connected by metal corners.
  • Roll the log to previously prepared stands (you can use logs of small diameter). Of course, if the diameter of the log is large, then it will not be possible to do it alone.
  • Scrill on to both ends the logs of Mr. It is not recommended to use nails, since after the first longitudinal cut will have to reconfigure the entire structure.
  • The T-shaped ruler is attached to stops using clamps.
  • A chainsaw is installed on the ruler with a device that was previously fixed not by it.
  • On the device, set the thickness of the board you want to get at the exit. In this case, it is necessary to take into account the thickness of the saw and the gap of 10 mm between the canvas and the ruler.
  • Turn the log 30 ° from yourself. The slope of the sawing process will be more convenient.
  • At the next stage, it is necessary to cut the log along.
  • Disconnect the ruler, promoting the clamp, unscrew the stops from the ends of the log.
  • Put the T-shaped line on the resulting plane. Fix the guide using self.tapping screws.
  • Fixing the log so that it does not roll, do the second longitudinal cut. It will be perpendicular to the first resulting plane. If you do the third and fourth cut, each time turning the log and installing the ruler, you can flatterly saw off the beam (beam) of the square section.
  • If the cut of the logs on the boards is required, then after the second longitudinal cut, the ruler is removed and only the device is used. In this case, one of the planes will serve as a guide, and at the output you will receive a half.erase board.

Cross sawing logs

For cutting logs across the fibers, it is necessary to install a saw chain for transverse cut on the unit. Basically, the transverse cut is used for wood file. Small cylinders are obtained, which are further split into firewood. To make it convenient to cut the firewood, the log is laid on goats 600-800 mm high.

Torus trotter is also carried out in the same way.

Scheme of cutting logs

Below is a scheme, which shows how to properly dissolve logs on boards and bars.

This operation can be performed in several ways.

  • Drinking a square of square section comes from the core part of the log.
  • To get 2 rectangular beams, a square beam is cut into 2 parts.
  • Having cut a log crossrest, you can get 4 timber.
  • This type of sawing is called “screaming” and is used on sawmill frames. All the boards are incomprehensible.
  • With this type of cut, the logs can be obtained by a double.circuit beam, as well as a few non.cut boards and a couple of horsemen.
  • Complicated radial sawing in its execution. A characteristic feature of the boards with such a sawing is vertical annual rings.
  • Double.dancing beam dissolves into trimming boards and 2 outlets.
  • In boards having a horizontal arrangement of the annual rings, the front is the one that is turned to the center of the log (core), and the back. turned to the sink (the so.called barrel periphery).

Longitudinal sawing of logs

The log is a tree trunk, from which all branches, branches, as well as the upper thin part of the crown are removed. The log can be used as independent building materials (pillars, piles, masts), as well as as raw materials for the production of lumber.

The sawing of the logs can be implemented in several ways:

  • manually using a saw tool
  • With the help of sawmills
  • using woodworking machines or specialized lines.

For more rational use of existing raw materials and the correct sawing of logs, special cutting schemes are used in the woodworking industry, which make it possible to reduce the percentage of waste and, therefore, the cost of the final product is reduced. For this reason, before starting the process of cutting a log with your own hands, it is worth looking for similar schemes on the Internet and study them in detail.

For sawing logs, such lap machines can be used:

  • chainsaw and simple hand saw helps to get a small amount of lumber
  • Pylorama is a device in which you can cut logs and bars, for which there are frame saws in the sawmill. On such devices, you can saw blanks, the diameter of which is from 14 to 80 cm and long from 3 to 7 meters
  • Ground machines. In this device, wood sawing occurs using a disc saw. Machines with one saw are called droofing, with two saws. multi.pound. Squire devices are used in small workshops and workshops. Multipian machines are used at large enterprises for cutting a large volume of workpieces. On such devices, manual workpiece feed is prohibited. Round.fed machines are dangerous likely to eject the sawed material and cuts with a saw in the direction opposite. Therefore, on such control machines, it is outside the zone of the possible departure of the material. In addition, the round.fed machines have abolishing knives and special mechanisms that are designed to keep the material from the release
  • Latu sawing machines are used for cutting logs, while the strip canvas is wearing pulleys. They allow you to carry out longitudinal and mixed cuts of wood, as well as different wood materials. Such equipment is used in carpentry workshops, workshops and is characterized by a large flight of the frame, a significant height of the cut with small dimensions
  • Sloting lines allow you to get high quality surface of the final product, accurate lines, as well as high performance. They are used in large enterprises.

To obtain a quality product, it is necessary to use good raw materials. If the logs of the necessary and correct dimensions are used during the sawing, then high.quality materials can be created from them.

The best materials are made of freshly cut wood. It is very difficult to get good lumber from a knotted and curved trunk. Therefore, before sawing, it is necessary to sort logs according to their qualitative features, and only after that use equipment for sawing timber.

Absolutely round logs do not exist, for this reason it is generally accepted that the log has 4 faces, each of which consists of a quarter of a circle and occupies its full length. None of these faces finds on another. There is a concept of “pure face”, the higher it is, the more valuable wood is. This line has no flaws, for example, cracks, scars, branches, chips, rot.

In sawmill enterprises for longitudinal sawing of logs, sawmill frames are most often used. Nevertheless, in world practice there is a tendency to use machine tools based on double and fainly tape devices that are characterized by high performance.

The yield of boards when sawing a round forest

Diameter, see High varieties exit, %
12. 16 First grade output 40 %
18. 22 On average 50 %
24. 26 about 50 %
28. 40 Brus forest, in the production of a beam, you can get indicators of about 70 %
42. 60 about 60. 70 %

Longitudinal sawing. Peculiarities

The longitudinal cut is carried out along the growth of fibers. During such sawing, much more energy is spent, the machine heats up much faster than in the case of a transverse saw. Nevertheless, such costs are completely compensated by the fact that the surface of lumber with a longitudinal cut is smooth. But in the case of a transverse saw, the surface is rough and even with chips.

In fact, the longitudinal cut was similar to the split of the pads with an ax, in which the blades-clin split the fibers connected by lignin, which facilitates further splitting. During the longitudinal cut of timber or wood-brown slab, the cutting surface of the instrument breaks the lignin, after which the fibers cuts with cutting movements.

Often during the longitudinal sawing, the internal voltage in the lumber is revealed, caused by an uneven leaf of fibers, which are compressed or, on the contrary, are stretched, clamped by the surrounding fibers and are in this position until the sawing begins.

During the implementation of the longitudinal saw, a significant problem arises. It consists in the fact that the edges of the cut boards may close. But this problem can be avoided. It is not worth the cut of the boards that have unevenly distributed annual rings, that is, the appearance that indicates the wrong drying. Not suitable for longitudinal sawing and lumber that have cracks.

Longitudinal sawing of wood should be carried out with a margin to release internal stress. This option makes it possible in the future with the help of strict or sawing, get rid of flaws. Do not forget that the discs used for the saw should be sharp and clean, if possible new.

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Completion of work

The second part of the main work process will consist directly from the barrel. At least this will require the already mentioned strong rope, and its length should be twice as much compared to the radius in the fall zone. One end of the rope is tied to the top of the barrel, and the second is pulled from below in the direction of the fall of the tree. If it is not possible to perform a node at a sufficient height or effort is not enough, then you will have to perform deeper cuts. After the roll, you will need to proceed to the cut off the workpiece. How to do it with your own hands saw a tree located on the ground? At this stage is a simpler task, as preparatory measures are excluded for a roll. But there is also a problem of a different kind. the site on the line of the future cut should be raised, which, in principle, will allow you to perform a neat cut. To do this, you can use additional equipment with an autocrane or perform an additional cut. Additional division will facilitate the mass of part of the barrel, from which the harvesting will need to be cut off.

The primer sawed

This is the basis that levels the surface and acts as a kind of preparatory coating for paint and varnishes. It is recommended to use acrylic soils and tinting mixtures for such purposes. If the decor of wood saws is planned to be performed with painting, then preference is given to transparent materials. For the same tasks of creating the background, temporal wood paints are suitable. Acrylic diluted impregnations allow to change the shade of wood without invading the texture. Apply such coatings is recommended by foam.

The prepared sawing is only a base for future decor. From it you can make whole products like weaknesses for countertops or wall installations, or in advance to provide the ability to create more complex objects with a functional load. For example, a casket of wood cuts is not difficult to make with your own hands if you correctly perform measurements and think over the layout of individual structural elements. The assembly and fastening of such products also uses familiar materials like metizes, studs and graduates. In the future, in the process of operation, one should also not forget about the periodic check of the sawdown, tracking its biological and physical condition.