Do-it-yourself mobile tire sawmill. Do-it-yourself tire sawmill Homemade electric tire sawmill for 220V

It is not so easy to make a sawmill with your own hands, but if you wish, you can easily build this machine for sawing wood yourself.

Residents of small towns are well aware of the role any woodworking device plays in their lives, since many use tools in their work. Today on the market is big choice various devices for processing wood, the most common of which are sawmills. These products are divided into disk, frame and tape. Most stores sell frame structure. It differs in the type of cutting element.

Elements needed to make a sawmill:

saw;
chain;
electric motor;
walk-behind tractor;
metal plate;
channel;
water pipe;
electric drill.

How to build a tire sawmill?

Such a device consists of a frame, clamping elements, a trolley, rollers, an electric motor, a tire and a file. The sawmill frame is lightweight, so it can be easily transported in the trunk of a car. The sawmill can be easily moved and mounted close to the workpiece that needs to be sawed.

You can cut logs of almost any length on a tire sawmill with your own hands. If the design provides for the installation of a large section, then the length of the workpiece can be increased by several meters. It is advisable to use such a device in the process of constructing the floors of a house. The clamping stops have simple design. Clamps are placed at the end and beginning of the workpiece, and the log is attached with screws to the flags for emphasis. When sawing, it will be possible to lower the stop elements to the required level. Blueprints tire sawmill may be different, but the simplest of them is shown.

The steering wheel is installed on one of the star bushings, which are located in the outer parts of the guide elements. After this, you can begin to construct a device for fastening the workpieces. To do this, you will need to insert rods into tubes with a diameter of 3-4 cm, which should fit into the stopper at the appropriate height. The elements can be secured using M8 screws. You will need to attach clamps and clamping elements more than 1.5 cm long on top of the rods.

The cart can be built from a metal plate 6-7 mm thick. It should have a steering wheel and a corner for support. Next, it should be installed on rollers. You can use an element from a combine harvester as a chain to move the cart. By using a sharp saw, you can ensure a smooth base cut. Such a file should be mounted on a carriage, which will move along the frame thanks to the presence of rails.

This element can be made from several metal channels 8 m long and 0.14 m high. At a distance of 1-1.5 m along the length of the channels, recesses must be made into which ties from pieces of tube will be installed. The entire structure must be installed on racks. The power mechanism on the bus sawmill is a three-phase electric motor with a power of 6 kW. The sawing speed is 18 m/s. Electrical engine located on top of the corners, which are pre-welded.

The bar and chain on the sawmill use ordinary ones. During the cutting process, the rigidity of the tire eliminates the formation of various defects. Sawing accuracy can reach +/-1 mm per 6 m length. At the end you should install convenient device for fixing logs.

How to make a tire sawmill?

The bed is constructed from channels. Metal corners and rails are also used. The parts must be straight. Along the length of the channels it is necessary to make recesses with a diameter of about 15-16 mm at a distance of 1.5 m.

Based on the number of recesses, couplers are constructed from pieces of pipe for drainage. The elements are secured with bolts. All components are assembled together and mounted on racks. The number of racks is determined by the length of the device. Along the edges of the rack, guide elements should be placed at a distance of 1 m from the end.

To give the device rigidity, you will need to properly secure the braces. Next, you should mount the cart, which can be constructed from a metal plate. For the trolley, you need to select clamping plates and gaskets. These parts will be responsible for ensuring the smooth movement of the device. It is important to ensure that the gap is minimal. The gaskets should be tightened using bolts. It is recommended to install the cart on casters.

Pressed on the electric motor shaft metallic profile with several streams. The force from the motor is transmitted through 2 belts to a pulley, which is located on the cutting bracket. The driven pulley transmits force through a roller, which rotates on several bearings, to the sprocket and chain.

The chain must be used to move the trolley with the saw and the electric motor. The chain and belts on the tire sawmill with your own hands should be well tensioned. The elements must be secured with several bolts and nuts. Additionally, it is recommended to install a special bolt on the chain tensioner. However, in some cases, the force of the pliers may be enough to properly tension the chain. To facilitate its operation, the element must be lubricated with machine oil.

Building a tire sawmill with your own hands is complex process, however, if there is a desire, even a person without relevant work experience can make such a design.

How to use such a design?

Next you will need to install the sawmill. It must be secured to the rails using several rollers for support. Rollers can be made from walk-behind tractor tensioners. It is worth remembering that the chain and bar must be designed for longitudinal cutting. Every day you will have to change 3-4 chains.

In order to be able to determine the thickness of the workpieces being cut, it is necessary to provide for the installation of a vertical screw, in which, during rotation, the frame will move with the cutting device.

At first, the size needs to be set using a ruler, and after a while it will be possible to set the thickness of the logs based on the revolutions of the screw. At the beginning of work, the workpiece must be secured according to the drawing. The force with which a homemade sawmill moves along the rail will be small.

How to build a chain structure?

It is advisable to build a chain sawmill with your own hands for those people who live in a private house and often perform renovation work. First of all, you need to decide where the mini-sawmill will be located. This device is heavy, making it difficult to carry. It is recommended to place the structure in a workshop or in the yard.

A homemade chain sawmill has several metal channels at its base. Height and length depend on the personal preferences of the owner. Metal workpieces must be smooth. It is worth knowing that you can make a chain sawmill with your own hands from a chainsaw. A drawing of such a design is shown.

At a distance of 1.2-1.5 m along the length of the parts, it is necessary to drill recesses with a diameter of 15 mm. The distance between the holes should be the same. Next, you need to prepare 2.5 cm sections of water pipes. Bolts are needed to connect the ties to the channels. At the same time, you should assemble and fasten the racks, which consist of channels, tubes and corners. The number of racks may vary depending on the length of the device. For a structure 8 m long, you need to prepare 4 racks. The frame should be installed so that the outer posts are located at a distance of 1 m from the ends of the guide elements. To give the structure a horizontal position under the posts, you need to dig up the soil. Another option is to install the legs on slats or bars.

Next, you need to secure the corners on the carts in which the electric motor will be placed. After this, the chain is tensioned. IN in this case the actions will be the same as in the case of constructing a bus structure. It’s not difficult to build a chain sawmill with your own hands; you just need to follow the sequence of actions.

DIY band sawmill

The manufacturing sequence will be as follows:

First of all, you need to choose a room. The recommended workshop area is 18 m².
The file will remain stationary during operation. The log to be sawn is placed on a trolley, which is moved manually. Therefore, you must first install a metal frame to secure the saw. Under it you should lay rails from the corner along which the cart with the log will move.
Sawing will be done in a horizontal plane. You should think about how the height of the saw will change while cutting the log. For this purpose the frame can be equipped special device, which operates on the principle of a clamp.
Next, the base is made. Depending on the dimensions of the workpieces, you can use a metal corner or channel. It will be necessary to ensure rigid fixation of this frame structure to the installation site.
At the next stage, the wheels are attached to the bottom of the structure.

A budget structure of this type can be easily built with your own hands. To do everything correctly, you need to decide what type of sawmill will be built. If you follow the technology, you can make a sawmill with your own hands in a few days.

The popularity of wood in private construction remains high even with the advent of the newest building materials. This is largely due to its reasonable cost, availability and ease of processing. Despite the fact that today you can easily buy a suitable board, beam or batten, the question of cutting logs yourself is of interest to every thrifty owner. And this is natural, because the costs of acquiring commercial timber cannot be compared with the cost edged lumber. Of course, running your own sawmill just to fix a fence or repair a roof is not practical. If we are talking about starting construction on an empty site, then your own sawmill will be very useful. And you can save on its purchase if you build the unit yourself.

Design and principle of operation of a band sawing unit

A modern band sawmill is a real automated complex

A band sawmill is called universal machine, which is used for longitudinal sawing of logs in order to obtain standard lumber - boards, timber, sleepers, carriages. Structurally, the unit consists of four main components: a band saw and its drive, a mechanism for moving the saw frame, a device for adjusting the height of the working blade and clamping device for fastening round timber. The sawmill is driven by an electric motor or engine internal combustion. Regardless of the power unit used, its power must ensure long-term operation of the equipment without overload. For a non-professional machine, asynchronous will be quite sufficient electric machine power 5 kW or gasoline (diesel) unit 6 - 8 liters. With. During operation of the machine, torque is transmitted to impellers (pulleys) with an installed “endless” saw blade up to 60 mm wide. Since the saw blade heats up and sags during operation, a hydraulic or spring-type tension mechanism is used.

Saw frame device

The longitudinal movement of the frame with the installed drive mechanism is carried out on rails installed on a solid concrete base. For this purpose, hardened steel rollers are mounted in the lower part of the unit body, the ease of rotation of which is ensured by ball bearings closed type. The maximum length of the processed timber depends on the length of the rail guides.

The thickness of the wood layer cut from a log is determined by the height of the saw blade above the floor level and is regulated by a special unit, which includes a pair of threaded transmission and its drive mechanism. Thanks to the simultaneous rotation of two screws located at the edges of the carriage, its movement along the vertical guides is ensured and the saw does not warp.

Using a sawmill belt type it is possible to obtain material of any thickness with minimal losses due to sawdust

The logs are prevented from shifting during operation of the unit. clamping device, which is assembled from a guide in the form round pipe and bushings with hooks installed on it with a large gap. The skew of the moving unit with installed “claws” leads to jamming of the device, which ensures the immobility of the round timber during processing. To better understand the operation of this device, carefully examine the illustration provided.

Jig operation

The operating principle of the sawmill is extremely simple. The log intended for sawing is placed in a bed between the rail guides. Then it is fixed with hooks, which are wedged with several blows of a hammer into the edges of the moving units. The carriage with the band saw is brought to the end of the round timber, after which the height of the working blade is set. After turning on the machine, the operator smoothly moves the saw frame along the rails, due to which the board is gradually cut required thickness. After reaching the other edge of the log, the cut lumber is put aside, the saw is raised and the unit returns to its original position.

Some sources suggest repeating the design of units in which the saw carriage is mounted motionless, and the cutting is carried out by moving a log laid on a movable platform. Perhaps such a scheme has a right to exist, but it must be taken into account that its implementation will require rails of double length.

The machine described above is a simple sawmill. If we talk about modern equipment, it almost completely eliminates manual labor. All operations, including moving the saw frame and adjusting the height of the band blade, are performed automatically, upon command from the control panel.

Video: Features of the band sawmill

What you will need to build a sawmill

For those who think building their own sawmill is not a difficult task, let us say right away that creating a high-quality, efficient unit is not easy. And the point is not even that one cannot do without certain financial costs - as a rule, the budget of a homemade sawmill easily fits into the amount of 30 - 40 thousand rubles. Assembling a unit capable of producing high-quality lumber will require solving problems related to stability of operation, ensuring the strength of components and parts, setting up and adjusting mechanisms, making devices for sharpening a band saw and setting its teeth, etc. Are you not afraid of difficulties? Then check out what materials and tools you will need for the job.

As rail guides, you can use steel angles with a flange width of at least 50 mm, a channel or an I-beam. The main requirement for rails is their straight geometry. It must be borne in mind that any shortcoming of our miniature “railway” will affect the quality of the cut, since the tape blade will copy every unevenness, transferring it to the surface of the board. That is why the best option will be T, N or U-shaped rolled metal. Unfortunately, corners are most susceptible to bending during manufacturing and transportation. The most ideal case would be to use factory rails, for example, from narrow-gauge transport, which, with some luck, can be found at scrap metal collection points.

The rollers that ensure the longitudinal movement of the sawmill can be machined lathe and harden. In some cases, the use of conventional ball bearings is allowed.

Excellent rollers are made from linear guides based on ball bearings, which can be found on sale. This solution cannot be called the cheapest, but there is no doubt about the reliability and durability of such a unit

Actually, the frame, saw carriage and bed for laying logs are made of square and rectangular profile pipes. It is best to use rolled metal with maximum wall thickness. This will provide the equipment with the necessary strength, since the operation of the machine is associated with variable dynamic loads.

For the mechanism for adjusting the height of the carriage (traverse), you will need guides from steel pipes with sliders and two long screws with nuts. For these purposes, you can use parts from decommissioned screw-cutting lathes (unlikely, but never mind), mechanical presses, or threaded rods from a construction store (the most affordable, but least preferred option). You can also order the production of parts from a turner - it’s still unlikely to be possible without contacting a specialist. In addition, you will need a chain drive, which is often borrowed from the gas distribution mechanism of automobile engines. Alternatively, you can use bicycle chain and stars.

Pulleys from old domestic combine harvesters of the Kolos, Niva brands and other agricultural machinery are best suited as impellers for the belt blade. By the way, you can also get shafts and bearing housings from there. Please note that the diameter of the guides must be at least 30 cm (optimally 50 cm), otherwise excessive mechanical stress will lead to cracks at the base of the saw teeth.

Pulleys from decommissioned domestic agricultural machinery can be used in the design of the band saw drive

There are designs homemade installations with guide pulleys in the form of wheels from passenger cars. For skeptics, we note that such a homemade solution has a lot of advantages, starting from the possibility of using assembled hubs and ending with the fact that fine adjustment of the belt tension during operation can be done by inflating the tires.

You can buy a band saw new or used. It is best to have several blades in stock, which can be replaced with sharp ones as they become dull.

As for the tools that will be needed during the work process, every self-respecting owner should have one. In particular, you will need:

welding machine;
“grinder”, or, in professional language, an angle grinder;
drill press or electric drill;
a set of drills for concrete and metal;
set of metalwork clamps;
set of wrenches;
hammer;
pliers;
fasteners (bolts, nuts, washers of various sizes);
measuring instrument (ruler, caliper, tape measure);
level (preferably laser type).

Do not forget that you will need to prepare a durable, level base, so be prepared for concrete works- make a supply of sand, crushed stone and cement, prepare a concrete mixer, tampers, formwork and a long rule.

Preparatory activities

At the preparation stage, choose optimal design, make the necessary calculations and develop drawings. After this, materials and tools are prepared and a place for installation of the sawmill is arranged.

Design work, drawings

The construction of a sawmill begins with the selection of a production site. It has been experimentally established that this will require an area of at least 3x6 m in size. In any case, when planning the length working area, must be taken into account maximum size processed forest. It is best if the unit is installed indoors or under a large canopy. In this case, you can work in any weather.

Then determine the number of corners (channels, I-beams) and profile pipes necessary for the manufacture of rail guides, stock and saw frame. The distance between the rails is calculated by adding gaps of at least 0.3 - 0.4 m on each side to the maximum diameter of the log. In addition, it is necessary to take into account transverse reinforcements, which are installed between the rails every 0.8 - 1 m. Supporting elements for timber can be mounted on the same reinforcements, raising the bed to a height of at least 0.2 m above the level of the guides.

Diagram of the sawmill Drawing of the saw carriage Drawing of the rail guides

Depending on the design, drawings are made of components that will need to be turned on a lathe - rollers, screws, shafts, bearing housings, pulleys, etc. The design of a homemade sawmill is taken based on financial capabilities, availability of materials and individual components, so the exact design of the unit everyone does it independently. However, we provide diagrams and drawings of the sawmill and its individual components as an example. They can be used in your own developments.

Drawing of the tension mechanism Drawing of the roller Impeller assembly

Preparing the base

A properly made foundation will ensure the equipment’s stable linear characteristics during operation.

Since building your own sawmill is a serious matter, you need to approach it responsibly. Perhaps in the future the equipment will become not only good help in the economy, but also a source additional income. Such important factors, like the durability and reliability of the sawmill, the ease of operation and the quality of the resulting lumber largely depend on how strong and level the base it has.

The construction of a base plate is no different from the construction of a shallow floating or simple strip foundation. A lot has been written about it, so there is no need to dwell on the construction process in detail. Let us only remind you that you will need a cushion of sand and gravel, the thickness of the base is made at least 10 - 15 cm, and its strength is ensured by an armored belt made of steel rod with a diameter of at least 10 mm. In this case, significant variable loads will not lead to cracks or subsidence of the concrete slab.

Instructions for making a sawmill with your own hands

As a working project, we will take a design known for its simplicity and low cost with wheels from passenger car. Since the correct and reliable operation of the saw unit depends on each element, we will consider in detail the manufacturing process of each unit, the nuances of assembling and setting up the equipment.

Rail guides

Laying rail guides

When using corners measuring 50x50 mm as rails, they are not laid on one of the shelves, but with the edge angle facing upward. This will reduce wear on parts and provide increased structural rigidity. If you use rolled metal with a 100 mm flange for the guides, then such a corner can be installed in any position. I must say that the most a good option are rails made of I-beams or channels, since they have increased rigidity even without being “embroidered” with cross members. By the way, they use as “sleepers” square profile width of at least 25 mm. The rail parts are connected to each other using electric welding. When installing spacers, weld a half-inch diameter pipe with devices installed on it for fixing logs (“claws”).

Carrying out welding work, it is necessary to ensure that the workpiece does not “lead”, which often happens when parts overheat. Most often, such troubles occur with corners and other thin metal products, so in this case it is better to use semiautomatic welding machine, operating in a carbon dioxide environment.

If it is not possible to ensure the straightness of the rails during welding, then the installation of transverse elements is carried out threaded connection. TO concrete base the guides are secured using anchor bolts.

Simultaneously with the installation of the rails, a bed for laying timber is constructed. To do this, vertical H-shaped posts with a minimum rod height of 10 cm and protrusions to prevent rolling of round timber of at least 5 cm in size are attached to the “sleepers.”

The bed for laying lumber can have any configuration

The nearest 3-4 crossbars are installed at a shorter distance - no more than 0.5 m. Thanks to this solution, in the future it will be possible to work not only with long pieces, but also with short workpieces.

Both parts turned on a lathe and ordinary ball bearings can be used as rollers. In the first case, a hole must be provided for installing the rotation unit, and the wheels themselves are hardened. The second option involves installing one enlarged and two or three identical bearings on the axle. Of course, the parts are selected with the same internal size, and the shaft is machined with a thrust collar on one side and threads for attaching rollers on the other.

Wide rollers are good because any rolled metal can be used as rails, including channels and I-beams

Saw frame

The manufacture of the saw frame begins with vertical guides, of which two pieces are required. It is best to make the racks and sliders from steel pipes selected with minimal clearance. After this, a rectangular frame of the carriage is made, to the sides of which the upper and lower sliders are welded. Since impellers will be mounted on the lower cross member, it must be made of rigid square pipe or channel.

Trying on guides and sliders

The body of the sawmill is not something complicated, since it consists of paired vertical and horizontal elements connected at right angles. A strong frame is obtained from a square steel profile width of at least 50 mm. Smaller rectangular metal can be used as spacers.

Welding the bed

The use of profile pipes will provide rigidity to the structure. If corners are used as structural materials, then their joints are additionally reinforced with steel braces with a thickness of at least 2 mm.

Rollers are installed at the bottom of the frame, having previously determined the distance between their thrust walls. It must match the width of the rail guides.

Saw frame assembled with guides and carriage

Carriage lifting mechanism. Photo gallery

Vertical movement of the carriage is ensured by a paired screw mechanism with manual drive and chain transmission. The nuts are welded to the lower bushings (sliders), and the thrust part of the screw is mounted to the upper crossbar of the saw frame. The screws will rotate easily if you use suitable bearings as supports.

Saw carriage lifting mechanism drive assembly with drive and tensioner Upper assembly lifting mechanism The lifting mechanism nut is welded to the carriage bushing. On the upper cross member, the screw is installed in the bearing.

To lifting mechanism worked without distortions, sprockets of the same size are installed on the shafts. After installing the chain, it is tensioned using a roller or fluoroplastic cracker. The drive of the flexible transmission is provided by gears of different sizes, one of which is rigidly connected to one of the screws, and the other is mounted on a separate shaft. The use of an oversized drive sprocket will allow you to quickly move the carriage along the guides. The fixation mechanism can be made of a spring-loaded pin, which, after adjustment, is installed between the chain rollers and fixed brackets. After assembly, the drive is equipped with a comfortable handle.

Pulleys

Manufacturing of hub adjustment unit

For pulleys, wheels and axle shafts are taken from a rear-wheel drive passenger car. To secure them to the bottom cross member of the carriage, you will need bearing units. It is best to order these parts from a turner - in this case it will be possible to make them adjustable, which will allow you to move the axes of the impellers to the sides. The fact is that during operation the band saw heats up and lengthens. If you don’t pull it up in time, it can fly off our “pulleys.” If you move them a couple of degrees away from the longitudinal axis, you can eliminate this danger.

Mounting the hubs on the saw carriage

Adjustment units are sections of pipes, one of which is installed into the other with a gap of up to 5 mm. The inner clutch is also a housing for the axle bearings, and its alignment is ensured by screws installed on the outer collet.

Installation of the power unit and main drive elements

One wheel is mounted motionless on the carriage, supplying the shank of its axle shaft with a pulley. The other is mounted on a movable unit, which will pre-tension the saw blade. The installation of pulleys is not carried out horizontally, but with an offset of 2 - 4 mm in vertical plane. The leveling of the band saw occurs due to the displacement of the cutting blade support unit. This structural element can be made of three ball bearings, like the rollers of a saw frame.

Installation of the band saw support unit. The device of its adjustment mechanism is clearly visible

After assembling and installing all components, the power unit is mounted on the unit. Rotation from the engine to the drive wheel is transmitted through V-belt transmission. Depending on the motor used, the belt is tensioned using a spring-loaded roller, if an internal combustion engine is used, or by shifting the frame with an installed electric motor. In addition, they produce protective cover, which prevents sawdust from flying in all directions. On last stage install a container with lubricating-washing fluid (LCF), the tube from which is connected to one of the cutting units.

A small hydraulic jack can be used in the saw blade tensioning mechanism

After assembling the unit and checking the tightness of all bolted connections installed on impellers band saw, after tensioning which a trial run of the sawmill is carried out. If the test switch-on is successful, then the engine is turned off and after the saw has completely stopped, the log is laid and fixed on the bed. The thickness of the first board is adjusted using the saw lifting mechanism, after which a test cut is made. The installation is turned off and inspected, a conclusion is made about the operability of the sawmill.

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The modern construction market is overcrowded various models tire sawmills, differing from each other both in price and quality. However, it is not at all necessary to purchase ready-made woodworking equipment, because a tire sawmill can be made with your own hands. It won’t take you too much time and effort, but the result of this work will delight you for many years, because a do-it-yourself tire sawmill will serve you just as long as a model made by a well-known company.

The sawmill is an indispensable tool when processing wood and building from this material.

The tire sawmill is an indispensable woodworking equipment for many residents of our country living in small towns or villages. Every rural resident is well aware of the huge role this equipment plays when performing wood processing work.

To make a sawmill you will need two channels 8 m long and 0.14 m high

Tire sawmill manufactured with my own hands, will become a reliable assistant when performing household work. Do-it-yourself is quite simple; for the production of the frame the following are used:

two steel channels having a length of 8 m and a height of 0.14 m.
rails;
in some cases, metal corners.

It is very important to ensure that all your workpieces are perfectly straight, otherwise your equipment will not function properly.

In steel channels along their entire length it is necessary to make holes with a diameter of about 15 mm at a distance of no more than 1.5 m.
Next, depending on the number of these holes, you will need to make special ties. You can use pieces of metal water pipe as material for them.
After everything finished parts must be securely fastened using threaded rods or regular bolts.
Now all the components of the structure of the future sawmill with your own hands, which you have previously prepared, need to be collected in one place, and then installed on racks.

The number of racks directly depends on the size and length of your sawmill. It is important to remember that the end posts must be placed at least 1 m from the end of the guides.

Read also:

Manufacturing and installation of the trolley

Construction of a sawmill.

In order to give the structure of the sawmill the necessary rigidity, you need to securely fix the braces. After this, install a movable cart on it, for the manufacture of which a steel plate is used. To do this, its thickness should be from 4 to 6 mm, and its length should be approximately 60 cm. However, the parameters may be different, depending on the size of the electric motor itself. For the finished sawmill cart, you will need to select clamping plates and some spacers.

These elements are necessary to ensure free movement of the entire trolley mechanism in DIY tire sawmills. But at the same time for normal operation equipment requires the minimum possible clearance. To tighten the gaskets, you can use regular bolts. Next, you will need to eliminate the lateral play, for which you should simply attach the stop angle to the sawmill cart. It should be noted that this trolley can be installed either on rollers or on bearings.

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Features of the tire sawmill engine

An aluminum profile is pressed onto the motor shaft (usually it is electric), on which there are two belts. While the engine is running, the force from the motor is transferred through two belts to a pulley, which is located on the cutting bracket. All pulleys located on the outer edge must have a diameter of 80 mm. If you have a walk-behind tractor, you can take them from there. Through the driven pulley, the engine force is transmitted to the roller, which rotates on two bearings, then to the sprocket and finally to the saw chain.

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Do-it-yourself saw chain on a sawmill

Saw unit and operation diagram of the sawmill.

The chain is used to move the metal cart on which the saw and the sawmill motor are located. It is very important to ensure that the chain is not tensioned very well. The required tension of the sawmill chain and belts can be easily adjusted with your own hands, simply fixing it with two bolts and nuts. In addition, in addition, you can also install a special tension bolt on the sawmill chain tensioner; however, as practice shows, the force of the pliers is usually enough to ensure that the equipment chain is always tensioned very well. To provide easier and long work It is recommended to regularly lubricate the chain with machine oil.

The sawmill steering wheel should be mounted directly on one of the sprocket bushings located at the edges of the guides. Next, you need to start making a device for fixing the log. For this purpose, special movable rods are inserted into pipes with a diameter of approximately 30-40 mm, which are inserted into the stopper at the desired level with an M8 screw. Next, you should attach the necessary pressing parts (they should be about 1.5 cm long) and cam clamps on top of these rods.

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Do-it-yourself installation and use of a tire sawmill

Drawing the simplest sawmill made from a chainsaw.

Now that your DIY sawmill is completely ready, you can begin its installation. To do this, the sawmill should be installed on guide rails using four support rollers. It should be noted that these rollers are often converted from walk-behind tractor tensioners. When installing a sawmill, it is very important to remember that the tires and saw chain must be intended only for longitudinal sawing. Make sure to keep the chain very sharp so you can cut the wood much faster. For normal operation of the sawmill, you will need to change at least two chains within one day.

So that you can set the thickness of the cuts you cut wooden planks, you need to install a special vertical screw. When it rotates, the frame with the saw unit will move either up or down, according to your needs. At first, you can only set the exact size of the board using a ruler. However, later, when you become a truly experienced framer, you will easily set the thickness of the blanks you need, just by focusing on the turns of the screw.

Our clients have repeatedly asked about high-quality drawings for tire sawmills. Basically, all their questions can be combined into several particularly important ones:

Is it possible to download a high-quality drawing of a sawmill from your website?
Can I do homemade sawmill based on your drawings?
How much will the drawings of your sawmills cost?

Our answers:

You can download drawings from this page for informational purposes. The fact is that the drawings of the Murka tire sawmills are our own and therefore secret production development. The drawings below are the first prototypes of tire sawmills.
Of course, this is possible, but in artisanal conditions you will not be able to obtain a structure of the required rigidity. High quality material It's not cheap. Well, probably one of the main disadvantages self-made- these are terms that can sometimes be extended for six months or a year.
A complete set of high-quality drawings and documentation costs 15,000 rubles, provided that you use the sawmill for your own purposes without distribution rights. It is possible to sell drawings with the right to distribute and use for commercial purposes. The price is around 40,000 rubles, negotiated individually.

Drawings of the Murka bus sawmill

All the drawings of the sawmill and its individual components and parts presented below can be viewed or downloaded. To download, you need to right-click on the link of the drawing you are interested in and select “save to download folder”, “save object as..” or similar, according to your browser.

Don't make a sawmill like this. During the production process, shortcomings in the design of the mini sawmill were identified and eliminated. The sawmill, assembled with our own hands according to the drawings proposed above, has the following disadvantages: heavy weight and long production time, we went through all this by trial and error. These drawings do not provide a guarantee or accuracy in the manufacture of the sawmill. Alternatively, you can look for a used sawmill, but no one will give you a guarantee for a long time services. We provide a 2-year warranty on our sawmills. Therefore, make the sawmill the most in a simple way- buy it on the website. Woodworking machines can also be ordered on the website www.sibpilorama.info. You can sell a sawmill after building a house, but a mini sawmill will always come in handy on the farm.

3D models of tire sawmills

Below are several 3D models of Murka tire sawmills, general view. When you order a set of drawings, you also receive three-dimensional models of the sawmill and documents.

Jokers can say this: “Repairs cannot be completed, they can be temporarily suspended.” Irony comes in very handy here, since an economic person always has a reason and desire to build or improve something. There would be time for this, and building materials. The building materials market is saturated to the limit. But their prices can hurt your wallet.

The difference between a homemade tire sawmill and a conventional one is that the cutting element here is a tire and a chain from a chainsaw.

And if you think about it, you can make some of the materials yourself. You can definitely prepare lumber yourself. It is enough just to make a tire sawmill.

Required tools and materials

The tire sawmill does not have any special design tricks. It differs from an ordinary sawmill in that the cutting element here is a tire and a chain from the most ordinary chainsaw. The first versions of such sawmills were made on the basis of a chainsaw. Currently, craftsmen recommend making sawmills using more powerful gasoline or electric engines. Preference should be given to internal combustion engines. In this case, the sawmill will not require an electrical network and can be used away from communications. You can cut logs directly in the forest.

To make a tire sawmill you will need:

metal channels;
tubes (it is better to have rectangular tubes);
bearings;
engine;
two pulleys;
pulley belts;
gearbox;
chainsaw tire;
electric welding;
drill.

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Assembly order

First you have to collect cutting machine. For a tire sawmill, a frame is made that resembles a cube frame. The chainsaw bar should be located in the central part of this frame. The tire must be secured on both sides.

The driven sprocket is usually mounted on a vertical holder. The opposite part of the bar is attached to elements that allow you to adjust the chain tension. But this is optional.

It is better to securely fix the tire, and organize the chain tension by moving the drive sprocket. This is not difficult to do: the drive sprocket is attached to the gearbox shaft, which is mounted on a metal base with longitudinal slots. It will be enough to simply release the fasteners and move the gearbox in the required direction.

We connect the gearbox drive shaft to the pulley (to a key). The second pulley will be located on the engine. The place for mounting the motor must be organized so that nothing interferes with the movement of the sawmill cutting machine. Rollers are used to tension the belts. The design of the belt clutch may vary. It is not necessary to make this element yourself: any design from agricultural machinery will do.

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How to adjust tire height?

And now you have to think over a system that allows you to adjust the height of the chainsaw bar above ground level. The simplest solution would be to place the entire cutting machine on vertical stands. For this purpose, two pipes are used, on which are cut pipes of larger diameter. Movement should be free, but without play. The outer (movable) tubes have holes to which nuts are welded. By screwing the bolts into these nuts until they stop, you will get a reliable fixation of the height. For convenience, notches can be made on the supporting posts at a distance of 1 cm from each other. Thus, you will be able to accurately determine the lowering height of the cutting element of the sawmill and obtain lumber of the required dimensions at the output.

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How to arrange horizontal movement?

Now let’s solve the issue of moving the entire sawmill along the log. Unlike usual band sawmills, where on cutting elements the log is fed, the sawmill itself must move along the line of the intended cut. For this purpose, vertical posts are welded to a metal base, in the lower part of which wheels (or bearings) are located.

There are chainsaw-based sawmills that move on rails on corresponding wheels. This perfect option, since there is no need to invent anything. In reality, it will be difficult to find all the elements to create such a movable sawmill base. More often used metal wheels, which move along guides. U-shaped channels are used for guides. The wheels in this design must be adjustable in height (minimum 2 adjustable wheels). This design of the sawmill base will allow all support points to be located in the same plane.

The guide channels must be welded together into a single structure. You can also do collapsible design guides, then the tire sawmill can easily be dismantled and delivered to the site of intended sawing.

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The importance of secure fit

Now you need to take care of fixing the tree. To do this, you will also have to arrange a small structure. Usually a metal base is welded from two corners (a 5 by 5 corner section can be considered optimal). At the bottom of this structure, you need to weld a stop that has spikes in the direction of the tree. They will keep the tree from moving in any way.

In the rear part of the structure, the same stop is needed, but with a movable base (along the line of the log). This stop will allow you to cut logs of various lengths. Spikes can be made from ordinary bolts, passed through the holes in the stop and secured with nuts on the inside. Then the bolts are simply sharpened.

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Design Features

We can assume that the tire sawmill has acquired its final appearance and is ready for sawing wood. Don't rush and don't expect to do everything perfectly quickly and accurately. The sawmill must undergo further testing, and the operator must learn to work on it. On this path, certain negative aspects may await you:

The tire sawmill is heavier at the top. The center of gravity at a high altitude causes strong deviations in the direction of the tire. The lumber will have a noticeable “waviness”. The vibration is felt very strongly by the operator. There are two options: either place the engine lower from the sawmill, or increase the weight of the lower part.
The sawmill moves along the guides only with great effort from the operator. If the wheels of the sawmill do not have excessive friction with the guides, then the cause of the inconvenience lies, again, in the location of the center of gravity. The design needs a counterweight to the engine.
When sawing, the chain stops. A common occurrence when the clutch is adjusted incorrectly. You just need to tighten the clutch rollers or shorten the cable.

Initially, tire sawmills were made on the basis of a chainsaw.

This caused a number of serious inconveniences. Feeding wood and operating the chainsaw accelerator was only possible with the participation of two people. The design of the sawmill described above allows one person to work successfully on it. By moving the cutting part of the sawmill, the operator sees all the moments of sawing and can independently adjust the speed of feeding the bar onto the tree trunk. Typically, it takes about 5 minutes to cut a 4-meter log. A chainsaw will do this job a little faster, but the quality of the cut will not be as smooth as when using a tire sawmill.

A chainsaw sawmill can have a stationary tire arrangement. In this case, the log itself is served. It is not necessary for several people to be present. Supply is ensured through the use of chains from agricultural machinery. Such a chain is fixed to a movable cart on which the log is located. The chain is attached to sprockets, one of which should be located next to the operator and have a handle for rotation. Such homemade products work no worse than others. The only drawback is that such tire sawmills require additional load on the person’s hands and certain sawing skills.