Longitudinal sawing with a chainsaw device. Homemade sawmill from a chainsaw: production and video

Since ancient times, wood has been the most popular building material. And if earlier rather primitive tools were used for its processing, today the latest modern technology is used. For example, in order to cut wood and process it to the required size, builders resort to the help of a sawmill. Unfortunately, such a tool is not cheap and therefore not available to everyone. Home craftsmen found a way out of this situation by making a sawmill from a chainsaw with their own hands. Tips for its design, drawings and video instructions can be found on numerous Internet sites, as well as in our article.

Types and features of chainsaw sawmills

Construction markets offer large selection sawmills, which are based on a chainsaw. The unit, fixed in a trolley with rollers, can be manually moved along a pre-laid path. rail track. A powerful chainsaw or band saw can be used to harvest wood.

For living conditions Large sawmills are most often not required, so the optimal solution would be to make a functional homemade mini-machine. Such a unit will have small sizes, and therefore can be easily moved if necessary.

More often the main element of such a device is a chainsaw, which can be purchased at a specialized store or use a Ural brand unit.

Do-it-yourself sawmill from a chainsaw: video instructions and drawings

Having the drawings available and having studied the video instructions, it is quite simple to independently make a structure for processing logs, boards and slats. Before starting work, you must select a suitable location. You can install a sawmill using a chainsaw in an old barn, garage, hangar, or even just under a shed. If the room for the unit is closed, then you should take care of the hood.

Chainsaw sawmill - option No. 1

To make the structure, in addition to a chainsaw, you will need:

two channels 8 meters long and 140-180 millimeters high;
two rails;
corners 50x100 mm and 40x40 mm;
segments water pipe 25 cm as ties;
steel plate 4-6 cm thick and 60 cm long;
movable hoses;
pipes with a diameter of 35-40 mm.

Making your own sawmill should start with assembling the base from rails and corners 50x100 mm turned upside down. They must be installed strictly parallel to the floor, so you need to use a building level.

Along the length of the base, according to the drawing, holes are drilled in increments of 1-1.5 meters and with a diameter of 14-16 mm.
Then, according to the number of holes, ties are taken and connected with bolts.
Stands are made from metal squares and the base is placed on them. The distance between the outer posts and the base should be about 100 cm.
To make the structure more rigid, braces between the posts can be welded.

After the base is completed and installed, you need to make a movable cart with your own hands. For this a corner is welded to the bottom of the steel plate 40x40 mm and the product is placed on rollers or bearings. Two corners are welded on top of the plate, to which a chainsaw is attached.

At the last stage of the work on making a homemade sawmill, it is necessary to make a structure for fixing the logs. To do this, movable hoses and pipes should be positioned at the required height and secured.

The first version of a homemade sawmill using a chainsaw is ready. There is another way to make a wood processing unit with your own hands. The tools and drawing for it will need the same, however, the design itself is more refined.

Do-it-yourself sawmill from a chainsaw - option No. 2

The structure consists of four main components:

Driven saws.
A mechanism for regulating the thickness of the board being produced.
A mechanism for moving the saw part of the structure.
Devices for fixing logs.

Since a chainsaw with a working engine and cutting teeth is already available, you will only need to make both mechanisms and a device for fixing logs with your own hands.

Mechanism for adjusting the thickness of the boards.

The logs are cut by raising or lowering the base, which must be welded to the plate using four nuts with bent edges. At the top of this device lock nuts must be installed, which need to be tightened after the unit is adjusted to the desired thickness of the material being processed.

Mechanism for moving the saw.

The saw in the structure moves along the frame along guide angles, the distance between which should be 50 cm. To the racks it is necessary weld two rollers or bearings by 20 mm. The lower roller should keep the sawmill from lifting, and the upper one should rest on the guide angle.

Device for fixing logs.

On such a unit logs are secured using two ridges– stationary and moving by means of a screw. After the material to be processed has been installed, the moving comb is secured with screws in a stationary state. Now you can safely begin to operate a homemade sawmill made from a chainsaw.

A sawmill is an impressively sized The unit is quite dangerous to operate, therefore, before you begin assembling it, you should carefully consider the place where it will be used. It should be well lit, ventilated and have free space. The nearby warehouse for finished boards will greatly facilitate the process of processing the material.

For sawmill with electric motor You should very carefully install the necessary switches and circuit breakers, as well as do the wiring.

Since the most dangerous elements of the unit are all its cutting and moving parts, when assembling the structure they should be given special attention.

Before starting to operate the assembled equipment, it is necessary to check all fastenings and components, as well as the stability of the structure.

Operating instructions for a homemade chainsaw sawmill

After the structure has been assembled and tested, it must be tested in wood. To do this you need:

Jerky movements when cutting should not be made, as this can lead to the tire stopping.

It should be kept in mind that it is necessary to work within means personal protection , which include mittens, a robe, oversleeves and glasses. In addition, you should worry about protection for the moving frame in advance. It can be made from acrylic or transparent plastic. Such shields can protect against saw chain and shavings.

A sawmill assembled with your own hands from a chainsaw will allow you to produce high-quality sawn timber correct form. Therefore, if you often have to work with lumber, then this homemade equipment, made on the basis of the attached drawings and videos, will become an irreplaceable thing on the farm.

Find an attachment for a chainsaw for longitudinal cutting at modern market It’s not difficult, you can do it yourself. What type you will need in your work depends on the location of the cut (can be horizontal or vertical), diameter wood material which you will process, the level of ease of use and cutting accuracy.

Device for longitudinal cutting of logs

Longitudinal sawing logs are carried out using special device. It consists of the following components:

an adapter that is fixed on the tire in the base area;
guide, main task which consists in transmitting linear motion to the main component.

The last component was attached to the board on the log that the operator was going to saw.

This kind of device, as we have already found out, having examined it design features, guarantees straight-line movement of the guide bar, which ensures the accuracy of the longitudinal cut.

This device allows you to:

sawing a log into two parts;
sawing material into quarters;
cut a beam from a log that will be used for construction work(it will look neat, so the masonry slopes look good);
split the logs into several beams or boards.

Please note that if you have set yourself the task of cutting into logs and beams, you will have to change the position of the board many times. In addition, for precise cutting good skill will come in handy. At first, the loose end of the guide bar will move sideways. This will not allow achieving consistency of performance and exact parallelism of each side of the board or beams.

A device similar in design can be used to cut material in a horizontal position if necessary. If you carry out comparative characteristics, then the device for cutting vertically makes it possible to obtain wooden elements of equal thickness at the output, which makes it possible to characterize this attachment as accurate and functional.

Second adaptation option

The main design features of this device:

fixed on the guide of the saw set not in one place, but in two, at the tip, as well as at the beginning (the structural type is frame, which ensures maximum strength);
the fastening area can shift, it all depends on your needs along the guide, which makes it possible to set the desired width relative to the size of the log;
the component (guide) of the device can be located at any distance relative to the tire, which also allows you to focus your work on the required dimensions of boards and beams (primarily thickness).

How to work with such a device? Easy and simple:

We make the first cut in a horizontal plane using a guide, a structural part of the frame installed on the log;
the second and further cuts are made, focusing on the other main surface, which usually serves flat surface previous move.

Important! To prevent the saw from becoming jammed during operation of the power unit and the device for longitudinal cutting, spacers are inserted into the cut to prevent the sawed area from narrowing.

What to do if the operator needs to cut a log whose diameter is larger than the saw guide installed on the tool? Then you need a complex chainsaw attachment for longitudinal cutting. Please note that in in this case Even the rated engine speed will not allow the lubrication system to release enough oil to ensure that the entire chain is lubricated evenly.

To improve the quality of lubrication and avoid rapid wear of the bar, sprocket and saw element, to the end of the guide from additional system(can be made from a hose and a reservoir) supply more consumables. To ensure that the oil is supplied by gravity, the reservoir is mounted at an elevation relative to the guide.

Universal device for longitudinal spreading

The universal device Big Mill allows you to accurately cut logs, even those whose diameter reaches 500 millimeters. In this case, the exact thickness of the boards can be set based on a special ruler, which the operator will find on the device stand (applied directly to it). Many craftsmen create their own devices, focusing on the model of this type of universal attachment.

How to unravel a log lengthwise using a universal device? Follow this algorithm of actions.

We take a couple of even boards, connect them, forming a T-shaped structure with an angle of 90 degrees. This design will act as a ruler, allowing the tool to move smoothly. In this case, the docks need to be twisted like this (taking into account the dimensions of the device for longitudinal dissolution) so that the power unit does not touch the ruler (it should be placed at a distance of 10 millimeters above).
Creates a pair of stops, which are ready-made from two parts (L-shaped). These components will prevent the log from rotating when it is cut. For reliability, the boards are secured with metal corners.
Rolls the log onto the stops (it’s easier to roll those whose diameter is relatively small). If necessary installation big log on the stops you will need to turn to someone for help.
We connect the ends of the log and the stops using self-tapping screws (take those that are longer than the rest). You should not use nails, since the second longitudinal cut will require you to rebuild the entire structure.
The T-shaped structure, which acts as a ruler, is attached to the stops with clamps.
The ruler is connected to a chainsaw, on which a universal device has already been installed.
Now we adjust the thickness of the boards that you want to get in the end. Don't forget when setting up this parameter, about the thickness of the saw and the gap between the T-shaped structure and the blade (10 millimeters).
We turn the material for cutting away from ourselves by 30 (this will make cutting longitudinally much easier).
We make a cut lengthwise.
He removes the ruler, unscrews the clamps, and removes the stops at the ends.
We place the T-shaped structure on the plane that we obtained after the first cut, secure the guide element with self-tapping screws.
We fix the log as securely as possible in order to make an accurate second cut in the horizontal plane. It will run perpendicular to the first cut.

This method can be used for the third and fourth cuts (each time, re-setting the ruler) to obtain a square loaf at the end.

If your task is to saw a log into boards, then after the second horizontal cut we no longer use a ruler, performing all manipulations only with the help of a universal device. We will use one plane as a guide. As a result, the operator will receive a semi-edged board.

Craftsmen know that any profile that has such characteristics as:

high structural rigidity;
light weight.

Available materials that meet such requirements are aluminum and duralumin. The best option is a device made from levels (aluminum) and plaster rules (this element served as a guide). The plaster rules are aluminum parts, although you can safely use another lightweight profile down to the boards and stairs (it’s good if it’s also aluminum). An alternative, of course, can be an iron element, but then the nozzle will be heavy and inconvenient to use (it will cause a lot of inconvenience during prolonged use).

Taking into account the friction force during operation of the power unit, care must be taken to increase the productivity of the tool. To do this, it is recommended to use aluminum rollers to serve as your base. Another good option is to use plastic (the main thing is that it is elastic), which must be fixed to the base of the nozzle with bolts.

Sawing logs into boards with a chainsaw is the most convenient and quick way. With the help of special attachments and devices, independent production of almost smooth boards is ensured, the quality of which is in no way inferior to those produced industrially.

Attachments for sawing logs

Chainsaw - convenient universal tool in homestead farming. First of all, you should take into account that it has great power and compactness. Thanks to the centrifugal clutch, all systems and components of the mini-engine operate without overload for a long time; Power makes it possible to install any attachments. The chainsaw can be used in any position and in any terrain, since it is autonomous and has a diaphragm carburetor.

How to adapt a mechanism for cutting logs into boards? To do this, just install the appropriate attachments on the chainsaw.

To cut a log along its entire length, a nozzle for longitudinal sawing of logs in a horizontal plane is suitable. Thanks to it, the boards are of the same thickness. After the necessary proper drying, they are suitable for construction. The attachment is a small frame that is attached to the tire on both sides.

In addition, there is a lightweight nozzle that is fixed on only one side. As a result, the boards are not as smooth as in the first case. Fences and sheds are built from such boards.

An auxiliary tool is a drum debarker-finer.

With its help, logs can be easily cleared of bark.

The nozzle is a drum, works thanks to a V-belt drive. It is attached to the moving belts using special pulleys on both sides of the axis. By selecting the diameter of the pulley, you can select the optimal shaft rotation speed.

Sawing logs lengthwise

To get smooth cut, you need to install a guide. It can serve as an industrial mini-sawmill. But such devices are expensive and not everyone can afford them. Therefore, logs are usually fixed homemade holders from boards with the same guide.

Sawing of logs into boards is carried out with a chain for longitudinal cutting. If there is none, a regular chain, sharpened at an angle of ten degrees, will do. Only in the process of work will you have to sharpen it from time to time. An attachment is installed on the chainsaw - a guide frame for an even cut.

To cut a log lengthwise, you must perform the following steps:

Make a leading line. To do this, you need to fasten two straight long boards at an angle of 90 degrees.
Place the log on the stops, thus fixing its position.
Attach the nozzle.
Using self-tapping screws, attach the supports to the ends of the log on both sides. Check horizontality with a level.
Attach the leading ruler to the supports with self-tapping screws.
Install another support board horizontally, which should rest against the ground and slightly lift the log.
Using a chainsaw with a horizontal cutting attachment, cut off the first piece of log.
Move the guide ruler and fix it.
Make a second cut of the log perpendicular to the first.
There is no need to use the leading ruler any further. The resulting board will serve as a guide.
Determine the thickness of the cut using the frame.
Make the next cut perpendicular to the second. The result should be a piece of wood, the underside of which is covered with bark.
Make a fourth cut to separate the remaining part of the wood that contains the bark. You will get an almost perfectly even block of wood.
Next, cut the block to the middle.
Flip it over the opposite side and continue cutting until the end.

If the thickness of the boards does not matter, cutting off the edges with bark is not necessary. In this case, you can use an edger and cut into boards from the very beginning.

Making cross cuts

Cross sawing is used to cut logs into firewood, as well as to create cross-cut wooden disks for construction garden benches, decoration of garden paths, etc.

Cutting a log crosswise is done as follows:

Place the log horizontally on wooden supports 0.5 m high.
If necessary, you can clear it of bark.
Using an ax or saw, make marking cuts at equal distances from each other.
According to the marks, cut the log.

Special attachments and chains are not needed for this work. A regular chain will do.

Maintaining safety during work

To avoid operational failures and accidents, safety precautions should be observed when working with materials and tools:

When working, do not allow strangers, especially children, onto the work site.
During work, you should use protective equipment against noise and sawdust that fly away during cutting.
You should carry a first aid kit with everything you need to use in case of cuts.
When using circular saw it is necessary to put a protective cover on it.
Do not pour gasoline into a heated chainsaw tank.
Use the chainsaw only for its intended purpose, do not turn it on at full power if it is not in operation.
There is no need to press hard on the saw while working.
The log for cutting should be installed on the right side.

Chainsaw serves convenient tool, which can be used for self-production boards It is suitable for use in household plots where it is necessary to repair or build new outbuildings. In such cases large number no boards required. Therefore, they can be easily cut from any logs in required quantity. Once you acquire the skill, the work is done quickly, and the quality of the boards is excellent.

How to cut a log lengthwise

To ensure an even cut, you will need a straight template - a leading ruler or guide.

A good help in the work is the BigMill Timberjig mini-sawmill (Logosol). Manufacturer Sweden. The cost of such a set is considerable - about 9,000 rubles. Calculate how profitable it is for you to purchase such a tool. The ability to saw logs on site will help reduce transportation costs.

Sawing is done with a push-pull saw with two nuts for mounting the tire. The device allows you to secure and cut logs with a diameter of up to 60 cm.

In order to cut a log into boards, you will need a chain for longitudinal cutting. If you cannot buy such a chain, sharpen a regular one at an angle of 10°. Do not forget that the chain loses its sharpness during operation and needs periodic sharpening. A well-sharpened chain will make your work easier.

The kit includes tools and parts that will help you install the wooden guide. The frame attached to the chainsaw slides along the guide and does not allow the tire to move to the side.

Operating procedure:

How to cut a log crosswise

If you plan to saw the trunk crosswise and then cut the logs into boards, this is not practical. Usually a log intended for preparing firewood is sawn crosswise.

Logs sawn crosswise are often used to make garden benches and tables. Look beautiful garden paths, decorated with sawn wood.. In this case, sawing is carried out into disks 10-15 cm thick.

Place the log on strong, stable trestles 60-80 cm high.
If you plan to remove the tree bark, do it before cutting.
Make a shallow cut that will serve as a guide groove.
Rotate the log 90º so that the saw bar fits in the groove.
When cutting logs into logs, first make notches with an ax.
Cut the log. Further processing material depends on its area of application.

Safety rules when sawing wood

Use headphones, glasses, a respirator, gloves and thick clothing.
Keep children away from the work area.
Have a first aid kit on hand - circular saws and chain saws are high-risk tools.
Do not use electric circular saw without protective casing.
Do not pour fuel into a hot chainsaw tank; wait until it cools down a little.
Run the chainsaw on the ground with the chain brake engaged. Release the chain brakes only before starting to cut.
When working, hold the saw by the arc handle and move it forward along the guide. Do not press too hard on the saw; it should move freely.
When pruning trees chain saw take care of ladders - when working, the saw should not be lifted above shoulder level.
If you are not left-handed, place the log on your right side.

How to properly cut a log. Video tutorials.

Work using the Timberjig sawing system.

A chainsaw is a phenomenal device in its capabilities. There is hardly any other tool that can compete with it in terms of breadth of use. Chainsaws are intended primarily for sawing wood, but their use is not limited to this. They are widely used as universal drive for devices for a wide variety of purposes. Chainsaws are used to cut metal and stone, drill wells, pump water, pull out stuck vehicles, swim, etc. The potential capabilities of chainsaws are realized using various attachments and accessories.

Several factors contribute to this wide range of work performed by chainsaws. First of all, it is the presence of a powerful (relative to its weight), compact, reliable and unpretentious gasoline engine, capable of working in the most difficult conditions. The diaphragm type carburetor and sealed fuel supply system allow the saw to operate in different positions, except perhaps completely upside down. The successful design of the centrifugal clutch reliably protects chainsaw systems and components from overloads and breakdowns. Simplicity of power take-off is also important; It is easy to connect any device to the output shaft of the tool. And finally, the advantages of a chainsaw include its autonomy, which allows it to be used anywhere.

However, do not forget that amateur chainsaws are not designed to work all day in intensive mode..

Petrol cutter attachment

One of the most popular, perhaps, is the attachment that turns a chainsaw into a gas cutter.

Its main unit is a bearing unit with a shaft, at one end of which there is a driven pulley driven by a V-belt, and at the other end there is a mandrel for securing cutting wheels. Depending on the brand of the latter, a gas cutter can cut metal, stone, brick or tile. The end part of the attachment is made with a groove for attaching it to the saw.

Debarkers

Clean the log from bark, branches and growths, select a longitudinal or transverse groove in it, cut cups in the logs during construction wooden log houses, giving a rounded surface flatness and many other operations can be performed using attachments called debarkers.

By design, debarkers are divided into drum and disk. The first ones are used mainly for removing bark from logs (cinders); the disk ones are used to cut out mounting grooves, cups, recesses, etc.

The working part of the devices consists of a drum or cutter mounted in a bearing unit. Like most chainsaw attachments, debarkers are driven by a V-belt drive. For this purpose, there is a driven pulley on their axis. By selecting the diameters of the pulleys and changing the engine speed using the accelerator, you can obtain the optimal rotation speed of the working tool, which provides the necessary processing parameters.

The figure below shows debarkers with various shapes working tools: cutter for cutting grooves (a), flat plane (b) and spherical (d), figured cutter (c).

Pump

The nozzle designed for pumping water can be used for emergency water supply to a house, watering a garden, draining a flooded basement and foundation pit, etc. It is a conventional centrifugal pump, equipped with a bracket with holes for attaching to a chainsaw and a pulley for driving the pump turbine into rotation.

The principle of operation of this chainsaw attachment is similar to the principle of operation of all centrifugal pumps. A hose is connected to the central fitting (1), which is lowered into the water. The pressure hose is connected to the fitting (3). Before starting work, the water necessary for the pump to start pumping is poured into the plug (2). When the pump turbine is rotated, a reduced pressure is created in the suction pipe, drawing in water, which is then discharged through the pressure hose.

Boer

A motor drill is a device that is useful in any household, but it is used relatively rarely, which makes its purchase not always advisable. Purchasing a drill attachment for a chainsaw will cost less than buying a motor drill.

Chainsaw drill. Two different nozzles.

The rotation speed of the auger during drilling should be relatively low, so a gearbox is used to reduce the speed. It can be made in the form of a V-belt or worm (preferably) transmission.

Winch

A winch driven by a chainsaw can be used to carry out the most various works: pulling out stuck vehicles, moving trees, lifting and moving construction materials, towing boats and boats to land, in various emergency situations.

Its traction force depends on the power of the chainsaw and can reach 1500-2000 kg, and even more with an additional block. To perform its functions, the winch must be equipped additional accessories: a pull-out block to increase traction force and change the trajectory of movement, hooks, anchors, sling belts for securing to a tree trunk, rock, soil or car.

boat motor

A chainsaw with a special attachment can be used as a boat motor. A device installed on the boat with a three-bladed propeller and a gearbox with a gear ratio of 2:1 is capable of moving through water at speeds of up to 20 km/h with a fuel consumption of 1 l/h.

Devices for longitudinal sawing of logs
(mini sawmills)

Most chainsaw attachments are designed for ripping logs. Their differences from each other are in the location of the cut (vertical or horizontal), the diameter of the logs being cut, the accuracy of the cut, and ease of use.

Device for vertical cutting of logs. The simplest is the device for vertical sawing of logs, shown below.

It consists of an adapter (1), attached to the tire at its base, and a guide (2), which determines the straightness of the adapter's movement. The guide is installed on the board (3), which in turn is attached to the log being cut.

The main purpose of this device for a chainsaw is to ensure the straight movement of the bar. With its help, you can not only dissolve a log into two or four parts (quarters) or cut a beam out of it, but also saw it into boards or beams. However, in the latter case, you will have to rearrange the board with the guide each time, and it will not be possible to achieve great accuracy when sawing. The unfixed end of the tire may move to the side, as a result of which constancy of parameters and complete parallelism of the sides of the beams or boards are unlikely to be achieved.

Device for horizontal cutting. Using the device shown in the photo below, logs are cut in a horizontal plane. Compared to a device for vertical cutting, it has increased functionality and accuracy, allowing you to cut boards or beams of the same thickness.

Device (other) for dissolving logs into boards

A device attached to the tire in two places - the beginning and the end - has frame structure, ensuring the rigidity of the device. The mounting location (1) can move along the tire. This allows you to set the required cutting width (according to the diameter of the log) - within the length of the tire. The guides (2) can be installed at any distance from the tire, thereby ensuring the required thickness of the cut beams or boards. First horizontal cut is carried out using a guide frame (3), mounted on a log and serving as a base surface for the guides (2). For subsequent cuts, the flat surface (4) obtained in the previous pass is used as the base surface. During operation, to avoid pinching the saw, wedges are inserted into the cut to prevent the cut from narrowing.

If it is necessary to cut logs whose diameter exceeds the length of a standard bar, a more complex device is used, which uses long tire. In this case, the saw’s native lubrication system does not provide high-quality lubrication of the entire chain, so it becomes necessary to install an additional system consisting of a tank and a hose that supplies lubricant to the end of the bar. To ensure oil supply by gravity, the tank is placed on a rack above the tire.

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