A device for sawing logs with a chainsaw: we make it with our own hands. Cutting a log into boards with a chainsaw Longitudinal sawing of logs with a chainsaw

There is always a use for lumber on the farm: wooden boards, slats and bars. Usually all this wealth is bought in hardware store or specialized market. But if you have a log, then you can significantly save on lumber by sawing it yourself. Logs can be sawn across, lengthwise or even obliquely. The latter method is used very rarely - only for complex wooden structures. Since it is very difficult to perform independently at home, we will consider the other two.

Cross-cutting a log is an absolutely simple way of sawing. It needs a special bed, popularly - “goats”, and a saw (manual, electric or gasoline). The log is laid horizontally on the frame and sawn in the place where it is required. If there are no goats, then the log can be sawn transversely by resting one of its edges on another log. For longitudinal sawing of a log, you will need a special sawmill, which can be bought at a hardware store. In such a unit, logs can be sawn into any thickness of boards or bars.

A ready-made sawmill is expensive, so you can make it yourself. The figure below shows detailed drawing homemade sawmill. If you do not plan to often cut logs into boards, then you should not purchase or make a stationary sawmill. You can make a simple imitation of it by fixing a guide made of boards on a log, along which an ordinary electric saw will move from the side.

And you can also recommend this method. Two rigid supports are placed along the edges, a guide is fixed on top of them, and a carriage with a saw is installed on it. The log in this case will be under the guide - unlike the previous method, where the log is on the side.

We told you about the most simple ways sawing logs. Do not forget that when working with any tool, especially with a saw, safety precautions must be observed.

If you're planning on felling trees and you think a chainsaw is enough to do it, that's a mistake. Felling trees is a rather traumatic process, if not fatal. The slightest mistake and a tree trunk weighing several hundred kilograms can fall on you. Therefore, before cutting down a tree with a chainsaw, you need to carefully study the basic rules - this will help not only avoid injuries, but also greatly facilitate the process itself and speed it up.

Before felling trees with a chainsaw, you must follow all safety rules. There are few of them, but they are very important:

Check the condition and serviceability of the chainsaw: chain tension, its sharpening, oil and gasoline levels.
Wear protective equipment: gloves, goggles, hard hat, sturdy shoes with non-slip soles, safety vest. Headphones don't interfere.
The rules for felling trees with a chainsaw categorically prohibit working in strong winds.
There should be no strangers near the workplace, at least within a radius of 10-15 m.
When working, it is forbidden to smoke, be distracted by extraneous things, talk on mobile phone etc.
Hold the saw with only two hands - it is forbidden to hold it with one hand.
You need to work only with the middle part of the saw - it is forbidden to work with the edge, because when kicking back, the blade can be thrown up or back and injury will occur.

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

Felling trees with a chainsaw is carried out according to the thickness of the trunk and the type of tree. For thin barrels, it makes no sense to use heavy saws - there is more fuel and oil consumption, and you get tired of it more. When felling, the following pattern is used:

thick trunks over 600 mm - heavy canvas from 650 mm
medium trunks from 300 to 600 mm - medium blade 350-650 mm
thin trunks up to 300 mm - canvas up to 350 mm.

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

Before cutting down a tree with a chainsaw, evaluate it: the thickness of the trunk, at what angle the trunk is tilted to the surface, in which direction it will fall when felling, whether there are foreign objects in the fall zone, whether the trunk will catch branches on other trees and so on.
Calculate the trajectory of the fall of the trunk, based on the slope and other factors, in order to understand how to properly cut the tree with a chainsaw in the right direction.
Cut branches and branches as much as possible so that they do not interfere with felling.
Proceed to the felling according to the scheme.

Depending on how thick the tree is and at what angle it is tilted, a diagram is drawn up on how to properly cut the tree with a chainsaw. An example of such a scheme for a trunk with a thickness of 350 mm or more is shown below:

Estimate how you will cut the trunk, you can mark the line with a marker. On the side where the trunk will fall, make the top cut at an angle of 45-60 degrees to the line of the main cut, 20-30 mm below the virtual line.

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

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

As you approach the additional cut, control the situation. In the event that the trunk starts to move or the crunch of the tree is heard, immediately remove the saw and insert a wedge into the main cut. It is recommended to use a long wedge - with the help of hammer or sledgehammer blows, you will expand the cut, and the trunk will fall in the direction you need.

That's all you need to know in order to cut trees with a chainsaw without injury and as quickly and efficiently as possible.

How to cut a log into boards with a chainsaw at home

A fallen log can be cut into logs on the ground if you plan to use the wood for kindling and firewood. How to saw a log across with a chainsaw - no need to explain, the technology is simple here, the main thing is to fix the log well so that it does not sway or move during cutting.

But if the trunk is good, you can cut the log into boards with a chainsaw at home and get absolutely free building materials needed in your own household.

In order to cut a log along a chainsaw, several devices are needed:

1. The bed or frame where the log will be fixed. For its manufacture, a corner, channel or pipe is used, thick enough to withstand the mass of the log.

Chainsaw with attachment. You can use a power cutter, debarker, vertical or horizontal nozzle. The most accurate and efficient dissolution of the log is provided by the horizontal nozzle, but it can only be used if the length of the saw bar is not less than the thickness of the log. If all this is not there, you can do without a nozzle - it is enough to make two simple fixtures, with the help of which cutting logs into planks with a chainsaw will be easy and simple.
Sawing logs into boards with a chainsaw can be done independently without preliminary sanding - it is easier to do this later.

Consider the easiest way to dissolve a log into boards with a chainsaw, that is, without specialized nozzles. It is necessary to make two simple clamps, welded ( best option) or assembled with bolted connections.

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

The clamps are attached to a self-made carriage with a handle - when the log is dispersed on the boards with a chainsaw, with its help, the carriage will move.

Holes are made on the clamps - this will allow you to adjust the height when sawing the log longitudinally with a chainsaw.

The assembled structure is mounted on a frame. Before sawing a log into boards with a chainsaw, install its special stand so that you can lift it as needed. The best option is two car jacks.

After the first sawing of the log with a chainsaw along, it rises to the required height and the next cut is performed in the same way.

Sawing logs into boards with a chainsaw: choose ready-made options

In case you cannot make a fixture yourself, how to cut a log along a chainsaw with a chainsaw, you can simply purchase it at the store. Today, there are many ready-made technical solutions, allowing sawing logs with a chainsaw.

This includes the aforementioned nozzles, thanks to which you can not only saw the log into boards with a chainsaw, but also peel off the bark or branches, cut grooves, and make timber from the log. What can I say - with such a nozzle, you can even make log crafts with a chainsaw that will serve as decoration in the yard.

The only disadvantage of such devices is that when the log is cut with a chainsaw, rough sawing is performed and the amount of waste increases. Therefore, if you are planning to build and you need a quality board, it is better to purchase a small sawmill - it allows you to get a cleaner cut, and the amount of waste is much less.

Sawing logs into boards with a chainsaw: what you need for this

Some people have the ability to take a certain area in the forest for logging to unravel the trunks, but how can a chainsaw unravel a log into planks if you have never had to deal with it? Those who have been logging for a long time can do this without any tools - they just need to beat off a longitudinal line on the trunk and use it to cut a beam or board.

But if you have never done this, then you will need certain devices, which we will now talk about, and also show the thematic in this article.

Sawing logs into boards with a chainsaw at a logging site

We dissolve the trunk on the boards

Note. To cut the trunk into logs, you may need a sawmill or an electric or chainsaw with machine tools.

What is needed for this

The chainsaw is the most affordable tool, and there are a number of reasons:

sawing of trunks can be made directly on logging. This does not require any stationary or autonomous sources power supply, only one tool;
Compared to an electric saw, a gas saw has much more power. That is key point with longitudinal dissolution of logs;
it has a soft start and soft speed control. this means that the risk of breaking the chain during operation is reduced to almost zero (it is, of course, possible, but for this you need to try very hard);
compared to a sawmill, the price of a gasoline-powered tool is several orders of magnitude lower;
compared to an electric unit, inertial braking is much faster here;
time of intensive use, the instruction manual allows you to stretch up to 1 hour;
it is possible to work with high humidity air (rain, fog)

Device for dissolution of trunks

As we have already said, experienced sawmillers can dissolve the log without any tools, but for beginners, you will definitely need to purchase or make your own log fixing machine, attachment frame for the saw and a guide for a smooth cut.

It should not be forgotten that during such work the tool experiences very large loads. Therefore, if you want to do it professionally, then naturally you will need an appropriate model, that is, as powerful as possible.

Professionals call the most popular and most best options, it's a Stihl MS-660 or a Stihl MS-880. Such units produce more than 7 horsepower, which ensures uninterrupted operation under heavy loads.

Frame details

To adjust the thickness of the sawn board, a special steel frame is put on the tire, which is able to adjust the distance from itself to the tire.

The frame is ready - view from different angles

In order to make such a corner, you can buy a square steel tubular profile 20 × 20 mm, but you can also use improvised material. For example, duralumin legs from the old school desk.

A thick board is used as a guide

As a guide to do something like stationary machine, you will need some kind of hard metal, most likely steel, profile, or a thick, even board under the log, as shown in the top photo. In fact, it looks the same as in the picture - two goats are installed and a guide (board or profile) is placed on them.

But it should be borne in mind that such a device can only be used for short logs, since if it is increased (the distance depends on the thickness of the guide), there will be a deflection, which will lead to an uneven thickness of the material being produced.

Machine Big Mill Timbergit

The thickness of the board or cut will be even only if any template is used to guide the chainsaw - a leading ruler or guide. It is very convenient to use the Swedish Big Mill Timbergit machine for this purpose, which you see above - it costs about 9-10 thousand rubles.

Here it is up to you to decide whether you need such a device, but having spent one time, you get a compact device that, along with a saw, can be delivered to the site on a motorcycle.

In order to get started, you will need a two-stroke saw and a bar with two nuts. With this device you will be able to dissolve logs up to 60 cm in diameter. Please note that in this situation you will have to acquire a chain for longitudinal sawing of the trunk, but if it is not possible to purchase it for any reason, then regrind a regular chain at an angle of 10⁰.

The Big Mill Timberjet kit comes with a variety of parts to help install and secure the wood track. It turns out that when driving a chainsaw, the frame slides along this guide, and the tire does not go to the side.

Note. Whatever type of wood you process, in any case, the chain becomes dull, and in order for your sawing process to take place without problems, it should be sharpened periodically.

Frame mounted on rail

Chainsaw sawing - process

Now let's see how to cut a log into boards with a chainsaw:

first we make a guide - we take two even edged wooden planks and fasten them together in the form of a half-tee;
from pieces of the same boards we make stops for a half-tee guide - fixtures for fasteners are included;
we roll the log with the help of a tilter and lay it on a pre-prepared convenient base;
fix the frame on the tire with nuts;
after that we fix the supports. who hold the ruler to the ends of the log, checking its horizontal level;
We fix all fasteners with self-tapping screws. since the nails at the end of the work will be extremely difficult to pull out;
we check that the cutting line does not pass along the ruler, but 10 mm higher;
start the saw and make the first cut;
we release the log from the stops and rearrange the structure to the next cut line so that it turns out perpendicular (90⁰) to the finished saw cut;
now we turn the log again and fix it with boards to the stop on the ground - the ruler will no longer be useful to you, it will be replaced by the cut made earlier.

Conclusion

Of course, cutting logs into boards at home is not limited to these two devices. If you do it yourself, then you will definitely need to make a right angle on the trunk, and then with the help of a frame you will be able to harvest boards of any thickness.

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Wood, like natural stone, is one of the most ancient building materials. Despite the current construction market huge selection variety of artificially created materials, timber is still very popular. In order to obtain high-quality lumber, a log must be sawn into boards. In this article we will talk about how to cut a log into boards.

Types of sawing logs

Sawing a log into boards is carried out in two main ways:

radial
tangential.

In addition, additional methods are possible:

mixed
semi-radial (rustic)
central.

Radial sawing is a type of sawing, during which the axis of the cut runs through the core of the log and, as a result, the annual rings in the section of the board form an angle of 76 - 900. The lumber obtained by this sawing has a uniform color and texture. Timber almost does not undergo deformation during shrinkage and does not swell when moistened, because the dimensions of the wood change mainly along the line of the rings (across the fibers). In radial sawn lumber, annual rings are arranged in thickness. Such materials have the highest performance in comparison with other types of lumber.

Tangential sawing is carried out along the tangents to the lines of annual rings at a small distance from its core. The surfaces of the resulting boards are distinguished by a pronounced texture and a bright wavy pattern of annual rings. Such lumber is characterized by higher coefficients of shrinkage and swelling from moisture, compared to radial sawn boards. As a result, they are strongly deformed under the action of moisture. Such boards are in demand for use in dry conditions.

Rustic (semi-radial) and mixed types of sawing have signs of two main types of sawing at the same time: radial and tangential. Therefore, they show average shrinkage and swelling ratios. Rustic sawn boards are distinguished by straight lines of annual rings, which are located at angles of 46 - 75 degrees. to the layers. Mixed sawn lumber is characterized by the fact that the lines change from straight at the edges (in width) of the board, to arched towards the middle.

The central cut is made right in the center of the trunk and contains its core. Taking into account the fact that the core of the trunk is the wood with the lowest strength values, center sawn lumber is characterized by a structure that is not uniform in strength.

Wood balance when sawing

Log diameter	Volume output,%
Log diameter	sleepers	boards	general	sawdust	piece. otkh.

Log cutting tools

Tools and cutting methods depend on the total volume of logs, such indicators as length, thickness. In addition, the quality of the future lumber must be taken into account. Sawing logs involves working with different tools and specialized equipment. In order to get a small amount of lumber at home, suitable manual method processing logs with a chainsaw or traditional hand saws with teeth for the longitudinal type of cut.

The sawmill is perhaps the most famous type sawmill equipment. This is a woodworking machine in which there are frame saws. At the sawmill, longitudinal sawn timber is obtained, for example, edged board or bar. Sawmills allow processing logs with a diameter of 15 to 80 cm and a length of up to 7 m.

Sawing logs into boards using circular saws is carried out by means of a saw disk type. Such equipment can be single-saw (single-disk) and multi-saw (multi-disk). Devices containing a single disk are suitable for working with small and not High Quality initial raw material. With the help of multi-disc machines, it is possible to cut round workpieces of large diameter.

Band sawmills are the most popular today. They are of two types: vertical and horizontal. cutting tool in such equipment is a tape fabric that is put on the pulleys. Work on tape machines guarantees the production of quality longitudinal and mixed lumber, such as boards and beams. This creates least amount waste.

On large industrial enterprises use lines for sawing wood. They allow to achieve very high surface quality and precise geometry of the final products. Such lines are characterized by the highest productivity.

In addition to all of the above equipment, such types of highly specialized sawmill equipment are also used, such as debarking, edge trimming, band-cutting and other types of machines.

Very often there are situations when you need to make a very small amount of boards or beams 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 logs with my own hands, using a chain saw, electric or petrol. Despite the fact that this work is quite laborious, the result is quite justified.

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

In order to cut a log into boards with a chainsaw, you will also need special tools, such as a mechanism for fixing the log, a frame attachment for a chainsaw, and a guide for cutting. The attachment frame must be attached to the chainsaw bar so that it is possible for them to adjust the gap between it and the chain. This will make it possible to create boards having different thicknesses. The chain should be purchased special, for longitudinal sawing. It has a special sharpening angle of the teeth. A ruler can be made from metal profile the required length or a flat rigid board.

Before starting work, you need to remove all the bark and remaining branches from the blanks, as well as carefully examine the log for various flaws. In this way, you will be able to choose the most suitable cutting pattern and, consequently, reduce the amount of possible waste.

If you are ripping trunks, you need to make sure that the resulting lumber is of the same density across the entire width. Since the density of wood from the northern part of the log is much higher than from the south, the cut is carried out in a plane directed from east to west (or vice versa).

The first step is to remove the slabs from two opposite edges of the log. As a result, a two-edged beam will be obtained, which is then cut into boards or other lumber of equal thickness, according to the planned sawing pattern. end product is an unedged board, from which the edges must then be removed.

For many centuries, timber has been the most popular raw material for housing construction. Today, primitive processing methods have been replaced by modern equipment. For example, for cutting timber and processing them to the desired size, craftsmen use a sawmill. The disadvantage of such a machine is the cost. For this reason, many people make mini sawmills based on chainsaws.

April 04

Boards and timber are one of the main building materials. But not everyone has the financial means to buy ready-made boards. In such situations, one of the ways out is to independently harvest wood on a plot taken from the forestry.

The advantage of a chainsaw as a tool for sawing logs

You can saw a log using a sawmill, a gas or electric saw and additional devices. When choosing one of these tools, the scope of the work ahead should be taken into account. The cost of the cheapest stationary sawmill, together with all components, is 150 thousand rubles. A chainsaw is much cheaper. It is more convenient than an electric saw for the following reasons:

To power the tool does not require electricity - this makes it possible to use the chainsaw on the plots.
It is more powerful than the electric saw.
Starts smoothly and allows you to conveniently adjust the speed, which reduces the likelihood of chain breaks.
The operation of the inertial brake is faster than that of an electric saw.
Long working time without interruption - up to one hour.
Can be used in high humidity conditions.

Types of working nozzles

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

Nozzle for longitudinal cutting. It is used for sawing logs along, the process takes place in a horizontal position. After work, the master receives the same thickness of the product. Finished materials are subjected to a drying process, after which the boards are used in construction. By appearance the device is a frame small sizes, it is attached to the tire on each side.

Drum debarker (rounder). With the help of such a nozzle it is easy to dissolve the log, it works due to the V-belt transmission. It is attached to the belts on both sides, for this purpose special pulleys are used. The speed of rotation of the shaft depends on the size of the pulleys, so the performance of the nozzle is easy to change. This technology forces the master to carefully monitor each stage of the process, some specialists use an assistant during this cut. But this option requires increased security measures.
Sawing with a lightweight nozzle. The method is not very productive, but is used quite often. The element is fastened on one side, but the workpieces are slightly uneven. Such materials are necessary for the construction of sheds or fences.

Features of sawing with a homemade tool

You can easily cut a log into boards with the help of a self-made tool. It's easy to make. To do this, follow these steps:

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 20x20, and more is allowed.
It is necessary to build two clamps, mount a cross member with two holes for the tie bolts at one end, and make a protrusion for the tire in the middle.
For longitudinal sawing of a log into boards, you need to make a support frame, its width should be seven to eight centimeters less than the length.
Then two parts ten centimeters long are welded to both sides, holes are made for the bolts, a handle is attached in the middle for ease of operation.
Then you need to insert the clamps into the grooves, install the tire, carefully fix everything.

To Work with homemade tool it’s not difficult, this will require goats, they will serve as a support. In addition, you need to prepare a metal rail or board to use as a guide. A log is laid from below, the required height for work is set.

The procedure for performing preparatory work

To cut a log lengthwise, you need to perform the following sequence of actions:

Take two straight boards and attach one to the other at a right angle. The result is a strong leading ruler.
To maintain the manufactured ruler, you need to make stops from the boards.
The movement of the trunks must be performed using a tilter.
The log should be placed on a comfortable base.
On the chainsaw tire using nuts, you need to fix the frame.
The supports of the leading ruler must be attached to the ends of the log, checking the horizontal position with a level.
Self-tapping screws must be used to fix all brackets and structural elements. Nails are not suitable for these purposes, since it is difficult to remove them in the future without causing damage to structural parts.
The leading ruler must be attached to the supports with brackets and its height adjusted, taking into account that the cut will not go along it, but approximately one centimeter higher.
The log must be rotated and the second board must be fixed in such a way that it rests on the ground and supports the log.

The procedure for performing basic work

Now you need to start the chainsaw and make the first cut.
Next, you need to free the log from the stops and boards and attach the leading ruler on the cut surface of the log in the direction of the next cut. The ruler is fastened directly to the surface or to the ends of the log using supports. The second cut is made perpendicular to the first cut.
The log must be turned and fixed with a board point-blank to the ground.
A guide ruler is not required to perform the following steps. One of the cut sides serves as a guide.
It is necessary to adjust the thickness of the cut on the frame and saw off the log from the other side in such a way that you get a bar with bark remaining on only one side.
This beam must be turned over and fixed in such a way that the fixing point of the fixing board is as low as possible.
Then it is necessary to adjust the frame to the required thickness of the board and saw the timber into boards.

Safety rules when performing work

Should not be used circular saw without protective cover.
Wear earmuffs, gloves, goggles, heavy clothing and a respirator.
Do not pour fuel into the hot tank of the tool, you need to wait until it cools down.
Children must not be allowed in the work area.
It is necessary to start the tool on the ground with the chain brake applied, which must be released just before starting to cut.
You should always have a first aid kit on hand.
When working, you need to hold the chainsaw by the handle of the arc, moving it forward along the guide. Do not press hard on the chainsaw - it should move freely.
Right-handers should position the log with right side from myself, left-handers - from the left.

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