Craftsmen do not always use a chainsaw for its intended purpose; it usually serves as a powerful drive in various mechanisms. The ingenuity of our craftsmen has given rise to numerous and very diverse homemade chainsaws, surprising in their originality.
The advantage of a chainsaw as a drive is its compactness, low weight and high power. Any craftsman who is capable of turning a part can perform metalwork, use a grinder and a welding machine, and can make interesting designs based on a chainsaw.
In order for a device driven by a chainsaw to function as it should, accuracy in the dimensions of parts and care during assembly are required. So, knowledge of the basics of drawing and designing mechanisms will be useful in this matter.
What homemade chainsaw products have already been invented?
The first use of a chainsaw from the point of view of many developers is to cut logs into beams with its help. But, if you hold the chainsaw suspended manually, the cutting accuracy suffers, especially when the beam is four to six meters long. To prevent the cut from moving away from the desired line, we came up with the idea of rigidly securing the chainsaw in a frame that moves along guides.
In such a sawmill, the log lies motionless, and the carriage with the chainsaw is located at the required height, depending on the desired thickness of the beam, and is fixed with four screws.
Thanks to the precise movement of the frame, a smooth and neat cut is obtained. You can cut boards in the same way, but due to the large thickness of the cutting chain you will end up with a lot of waste.
Chainsaw-winter transport
They managed to use a chainsaw as an engine for a homemade snowmobile. Here the design is much more complex than a sawmill. In this case, in addition to manufacturing the snowmobile frame, you will need to make a suspension with shock absorbers, and connect the gas and clutch controls to the steering wheel.
In addition, you will need to find the drawings (or design it yourself) according to which the snowmobile track will be made, and think about the transmission of torque from the chainsaw to the track. Such a snowmobile is equipped with a centrifugal clutch with a chain and a poly-V-belt (after all, the chainsaw does not have its own transmission). In order to increase traction, a gear with a diameter larger than the chainsaw drive sprocket (the so-called “traction gear”) is installed on the track drive shaft.
For the steering mechanism, as a rule, they take the steering wheel from a scooter and bicycle and easily modify it so that it turns the snowmobile skis. Such transport requires an engine with a power of at least five horsepower, so if you are making a snowmobile, then use a Ural chainsaw.
If we consider transport for the winter, then the design of a snowmobile is much simpler. In them, a large screw is attached directly to the shaft of the chainsaw mounted at the back, which is the propeller. Is it true low power chainsaws limit the cross-country ability of such sleds to ice on a river or a compacted road. For racing on snowy fields, you need an engine of at least 12 horsepower. The same restrictions do not allow you to add a backpack helicopter to homemade chainsaws. Unless you use two engines and the master manages to make them work in harmony.
Homemade chainsaw - the engine is large
It cannot be said that such a design will be of much use, but many people make such a unique vehicle simply to test themselves and show others their skill as a designer and mechanic.
It is taken as a basis old bike, which is not a pity, and the well-known chainsaw “Friendship”. The force is transmitted to the wheel using bicycle chain and a gear pair.
Sometimes they take a mountain bike, and install a variator transmission and gearbox between the chainsaw and the wheel (to move slowly but confidently, you need a gear ratio of 18:1). This “advanced” model is equipped with shock absorbers and brakes.
Boat engine
This design is simple to implement; a boat motor does not need a transmission; you just need to machine an adapter that will transmit torque from the saw drive gear to a standard boat propeller shaft and propeller.
http://www.youtube.com/watch?v=rMRogHwQsck
Usually, either homemade engine they are mounted on the boat so that the propeller shaft is immersed in the water at a slight angle, or they are not too lazy to assemble a gearbox that transmits the rotation of the shaft at a right angle to the propeller.
Motor cultivator made from a chainsaw
Many people have managed to make a simple motor cultivator out of a chainsaw, in which a pair of gears increases the traction force of the engine and transmits it to the drive wheel. You must understand that the insufficient power of the saw engine will not allow you to make a real walk-behind tractor in this way.
Resourceful craftsmen show their design talents snow removal equipment. There are known models based on the three-watt Calm chainsaw, which is installed, for simplicity of design, on sled runners. The main thing is to make a high-quality auger assembly and select a gear pair, and the chain saw engine doesn’t care what to rotate.
For such a snowblower, galvanized steel is used to make an intake device, blades are made from corded, thick rubber, and a regular sewer plastic pipe will serve as a snow thrower.
Chainsaw based helicopter
Although many inventors are looking for ways to make a small single-seat helicopter based on a chainsaw, its power is still not enough to fly. As engineering calculations have shown, a mini-helicopter requires at least four high-powered chainsaws, working in concert and with an increased number of revolutions.
A motor drill made from a chainsaw will greatly facilitate the installation of a foundation on screw piles, installation of a fence or drilling holes for winter fishing. Just keep in mind that the chainsaw engine must be connected to the ice ax auger through a reduction gearbox (worm gear).
Chainsaw winch
Using a chainsaw, it is easy to make a winch with a force of up to one and a half tons. Such a device will help lift a massive load to a height, remove a cut tree, pull a boat ashore or a stuck car onto the road.
A small gasoline power station is useful in the household. A generator, a Druzhba or Ural chainsaw is mounted on a durable frame and connected to the gearbox. A pulley is attached to the gearbox shaft, from which a cord belt transmits rotation to the generator, which will provide household electricity in the event of a power outage or absence.
So, although this instrument itself is familiar to everyone and its purpose seems unambiguous, craftsmen come up with a lot interesting designs. As you can see, homemade chainsaws are very diverse (some enthusiasts even manage to old chain forge a knife).
The talents of home craftsmen have led to the emergence of a large variety of equipment powered by a chainsaw.
Do-it-yourself homemade chainsaws are best option manufacturing useful units that will help quickly solve a lot of everyday household problems. To create them, you can use scrap materials and old working equipment, which makes it possible to save a considerable amount of money and, at the same time, find a use for accumulated devices.
What can you make from a chainsaw with your own hands?
There is a considerable list of all kinds of homemade chainsaws that you can build yourself at home. Each of these units will bring a lot of benefits to the household and help save the energy and time of its owner.
Homemade sawmill
To make this homemade chainsaw you will need several steel pipes, which are connected to each other by welding, the guide and the saw itself. A ready-made sawmill will help you prepare a large number of boards for repair or construction.
Snowmobile with chainsaw engine
This homemade chainsaw consists of a durable steel frame, steering wheel, movement elements, a seat and, in fact, a motor and gearbox. A homemade snowmobile can accelerate to 15 km/h and can support 1 adult passenger with small luggage.
Chainsaw moped
This homemade chainsaw is a full-fledged motorbike, which differs from modern analogues in its simplicity of design and modest fuel consumption. The finished unit with a full tank can transport one adult passenger over a distance of 5 km.
Homemade ice screw
This simple homemade product from a chainsaw allows you to quickly drill holes in the ice for winter fishing and also make holes for mounting pile foundation. In addition to the engine, to make an ice drill you will need a reduction gearbox, a durable auger mechanism and steel knives.
boat motor
This homemade chainsaw will help out during summer fishing on large lakes and rivers with strong currents. To make it you will need a screw mechanism and blades made of of stainless steel. Homemade outboard motor capable of carrying one adult passenger with a small load, reaching a speed of up to 20 km/h.
Homemade products from Ural chainsaws make up most of the devices invented by craftsmen from such units. This is explained by the simplicity of the design, sufficient power and low weight of the chain saw.
Snowmobile
Work begins with the snowmobile frames and track block, which are made in the form of 2 welded spars. In the middle parts, 50x36 corners are used; metal plates of 2 mm thickness are installed in the front and back. The latter have the edges bent by 90°, which adds rigidity to the parts.
A hole is made in the front plate for the shaft that drives the caterpillar, in the rear plate - for its second axis, which is a tension one. Near the latter, on both sides of the frame, tensioning devices for the caterpillar and chain drive are mounted.
5 brackets with open grooves are welded to the side members from below. They contain the axles of the track rollers supporting the track. The last 18, 3-4 pieces each. on each axle - front and rear at the edges, middle ones - in a checkerboard pattern. The axles are secured in the grooves using nuts and locknuts.
The rollers come from a unit that is used for sorting potatoes, the axles come from a potato digger. The axles are released, machined, and an M10 thread is cut. Between the rollers, to fix the position, duralumin tubes of the appropriate diameter are placed.
3 racks are welded onto each spar using 30x30 angles. They are connected at the top with the same crossbars:
- welded to the front and middle on the right side steel sheet 2 mm thick, on which a gearbox with an intermediate chain drive shaft is mounted;
- Between the other pair there is a box with a lid that serves as a seat.
A transverse beam is welded to the front ends of the side members - the crossbeam of the front axle. At its ends there are bushings for the steering skis, in the middle there is a stand that forms the engine subframe. All parts are made from water pipe with an outer diameter of 32 mm.
The caterpillar for the motorized dog is from Buran. It is shortened by 50 cm and stitched. Drive and tension gear wheels They are made according to the “Buranovsky” type from strong plastic with a thickness of 1.5 cm.
For the caterpillar drive shaft, a pipe with an outer size of 28 mm is used. On the edges:
- The flanges are welded to which the gears are attached through the holes.
- Pin tips are pressed into the shaft holes, the diameter of which is previously ground to fit bearings 80204. One of the tips is made longer and a driven sprocket is placed on it, through which the shaft is driven into rotation. It is secured with an M14 nut, under which the end of the axle is machined and a thread is cut.
Similar to the drive shaft, but with 2 identical tips, a tension shaft is made.
The chainsaw engine is mounted through its frame on a motor subframe - a rack available on cross beam. The gas tank is located on top. The gearbox is rotated 180° and secured to the site. A speed reducer is also installed on it - an intermediate shaft. Sprockets with a number of teeth of 38 and 10 are attached to it. Chains for transmitting rotation are taken from the Voskhod, Minsk motorcycle.
The chainsaw is very popular among home craftsmen because it is a universal drive for original homemade designs.
Light weight and solid power combined with compact dimensions allow this “lumberjack’s dream” to be combined with an ice auger and a bicycle, a sawmill and a winch.
Interesting homemade products from a chainsaw can be made by anyone who confidently works with welding machine, a grinder, and, if necessary, can stand on a lathe.
In this case, knowledge of the basics of design and drawing will be very useful, since the accuracy of all dimensions and quality of assembly are the main conditions for the normal functioning of a unit driven by a chainsaw.
Without going into technical details, we will consider the most interesting designs using it.
Homemade options
The first thing that comes to mind when you think about what can be done with a chainsaw is its use as a sawmill. Many developers had to split logs onto beams with this tool.
Holding the saw suspended in your hands, it is very difficult to control the accuracy of the entire length of the cut. Therefore, with a log length of three or four meters, it moves far away from the intended line. This problem can be solved quite simply. To do this, the chainsaw is rigidly fixed to a frame, which moves along a guide profile.
In this case, the log lies motionless and is neatly sawn along its entire length without wobbling or oblique seams. If you equip such a mobile carriage with four lifting screws, you can accurately set the thickness of the sawn timber.
A sawmill using a chainsaw will also work on boards without problems, only in this case there will be too much waste, since its cutting chain is several times thicker than the saw of a band sawmill.
Snowmobile
Easy homemade snowmobile The design of a chainsaw is more complex than that of a sawmill, since here you need to place the gas and clutch on the steering wheel, and also take care of the shock-absorbing suspension of the supporting frame.
In addition, you need to develop it yourself or use ready-made drawings of the caterpillar and correctly transfer torque of sufficient power to it from the motor. Since the chainsaw does not have its own transmission, the clutch on such a snowmobile is fitted with a centrifugal clutch with a serpentine belt and chain.
To increase traction, a “traction” gear is placed on the caterpillar drive shaft, the diameter of which larger size chainsaw drive sprocket.
There are usually no problems with the steering mechanism, since it is taken from a regular bicycle or scooter and modified so that the central axis moves the rods that turn the skis. The snowmobile engine power must be at least 5 horsepower, so it is better to use a Ural chainsaw for this purpose.
The winter line of homemade vehicles will be complemented by snowmobiles made from a chainsaw, which are structurally simpler than a snowmobile. The propeller imparts the driving force to them. large diameter, which directly rotates the gasoline engine.
A significant limitation for the cross-country ability of such a machine is the low power of the chainsaw. Therefore, you can only move on them on a flat surface of compacted snow, ice of a frozen lake or river. To travel across the fields you will need an engine with a capacity of at least 12 horsepower.
Those home inventors who would like to make a backpack-type helicopter from a chainsaw should know the same thing. Such a machine will require not one, but at least two engines operating in a coordinated mode.
Moped
This vehicle most often they do it for the sake of principle, and not for practical use. The main driving force of its creator is the desire to test his strength as a mechanic and prove to others the original use of this cutting tool.
The basis for the design is usually my grandfather’s old Druzhba chainsaw and an equally ancient bicycle, with which you can carry out any experiments on converting the frame for mounting the drive.
Power is transmitted here through a gear pair using a bicycle chain, and the start of such a homemade product is reminiscent of preparing for cutting firewood.
Less common are more advanced models, the basis for which is a mountain bike equipped with reliable brakes and shock absorbers. This chainsaw moped is equipped with a gearbox with a gear ratio of 18:1 and a CVT transmission, which allows you to comfortably move on it at the speed of a regular bicycle.
boat motor
This option for using a chainsaw is quite simple, since the task here is to transfer torque from the saw motor to the propeller. A homemade outboard motor does not need to install a transmission. For it you will need to make a reliable adapter on a lathe from the saw drive gear to the propeller shaft. The propeller can be used from a standard outboard motor.
The photo shows an option in which the front propeller There is a gearbox that changes the angle of rotation of the shaft by 90 degrees. In more simple models they do without it by mounting the engine on the boat so that the shaft is immersed in the water at a slight angle.
Motor cultivator
It is difficult to make a full-fledged walk-behind tractor from a chainsaw due to lack of power and traction. But many home craftsmen were able to build a lightweight motorized cultivator based on it.
The design of such a machine is very simple: the motor rotates a pair of gears and transmits increased traction force to one drive wheel.
snow blower
The chainsaw motor doesn’t care whether it rotates the cutting chain or the auger mechanism of a snow blower. Here everything depends only on the design abilities of the creator and his ingenuity.
Using a Stihl chainsaw with a power of about 3 kW, you can easily build a good device for clearing an area of loose snow. To simplify the design, some craftsmen refuse to install wheels and use conventional sled runners.
The most important part, which determines how well a homemade snow blower will do its job, is the auger assembly. It is driven by a gear pair and a chain. The blades are made of thick cord rubber, and the intake device is made of galvanized steel sheet.
Frame design
You can fit a plastic snow thrower under the snow thrower. sewer pipe, securing it to the intake body.
The chainsaw asks for the sky
The most daring inventors have long been eyeing the possibility of using a chainsaw as an engine for aircraft. However, this instrument is not strong enough to master airspace. Therefore, no one has yet succeeded in making a backpack helicopter out of one chainsaw.
Calculations have shown that this requires at least four chainsaws (total power from 20 hp) of a forced design, which would allow them to increase speed several times and work in a coordinated mode.
Motor drill
This device is useful not only when building a fence or foundation from screw piles, but also during winter fishing, when you have to drill dozens of holes in thick ice.
Since the ice auger operates at low speeds, to adapt the chainsaw motor, it is connected to the auger through a reduction worm gear.
Winch
Motor winch - very useful device, because with its help you can not only easily pull out a stuck car, but also lift a heavy load to a height, pull a boat onto land or move a cut tree.
The power of such a homemade product depends on the power of the chainsaw used, and its pulling force can reach 1500 kg. Such a winch must be equipped with a sling belt, hooks and anchors for attachment to the ground, tree trunk or car.
Power station
The camping power station is assembled on the basis of Ural or Druzhba chainsaws. It consists of a frame, an engine with a gear reducer, a control panel, a generator and connecting electrical cables.
1 – chainsaw 2 – gearbox 3 – cord drive belt 4 – tension bar 5 – generator; 6 — control panel; 7 — clamps; 8 – supporting frame; 9 - saw tooth stop; 10 — nut for fastening the frame to the gearbox; 11 - drive pulley
A good owner will not throw anything away in vain, especially if we're talking about about quality metal. If you understand the nuances heat treatment metal, you can do it solid forged chain knife, which has served its resource.
This thing looks no worse than the creations of Arab blacksmiths who forged swords from the legendary damask steel.
Homemade products made from the Ural chainsaw indicate its great capabilities. Originally created as a tool for sawing wood, it, in combination with additional attachments produced by the industry, has become multifunctional. However, craftsmen never cease to amaze with their ingenuity, creating new original devices.
Today, industry produces convenient, functional and advanced devices for working with wood. For this reason, still functional Soviet saws became undeservedly forgotten. But as it turned out, new saws cannot be used again, and old ones, on the contrary, open up the possibility of widespread use for other purposes. Most often, Druzhba or Ural brand chainsaws, which were once used to prepare firewood, can be seen in villages. Now savvy minds have adapted the old units for other purposes.
The Ural chainsaw was created on the basis of the Druzhba saw, which for a long time helped lumberjacks cut down trees, and surpassed it in quality and performance. Its main components are a drive with a two-pin or four-pin motor, a cutting bar and a handle. The universal drive allows the saw to be used in various options. An important fact to vary are its design features:
- engine of sufficient power;
- light weight and compactness;
- ability to withstand extreme conditions;
- autonomy.
The clutch eliminates overload and damage to the working parts due to its leak-tight design.
Thanks to these qualities, the chainsaw has found application in the widest spheres of the national economy. Homemade products from a Ural chainsaw can be made both simple and complex. Simple ones include:
- mowers;
- cultivators;
- walk-behind tractors;
- boat engines;
- pumps;
- winches;
- ice axes;
- Bulgarians.
Complex inventions include the following homemade products:
- snowmobiles;
- snow blowers;
- sawmills;
- snowmobile;
- power plants;
- helicopters.
Features of creating homemade products
Converting a gasoline unit with your own hands will require certain knowledge of design and technical drawing. Then the parts manufactured according to the drawings will ensure accurate and high-quality assembly. At home, parts are produced and assembled using lathe, grinder, automatic welding machine.
A cultivator made from a chainsaw does not have enough power to cultivate large areas. But he is quite capable of handling a small personal plot. To convert, you need to transfer the energy of the engine, which turns 2 gears, from one of them to the drive wheel shaft. Such a lightweight motor cultivator is quite feasible for many craftsmen.
The mower obtained by modification is capable of being used for a long time and continuously. This homemade chainsaw is made using simple manipulations by removing the bar along with the chain and drive sprocket. After the end of the summer season, the structure is restored and used for sawing wood.
It is not profitable for owners of small garden or vegetable plots to buy a walk-behind tractor. Its maintenance and service, purchase of spare parts, fuels and lubricants requires significant additional investments, and often they do not justify themselves. if you have old chainsaw, then you can make a walk-behind tractor out of it. The design principle will be to use a gear system consisting of two sprockets. If power is supplied from the engine shaft to the drive wheel shaft, the working parts of the walk-behind tractor will begin to rotate. Homemade walk-behind tractor from a chainsaw with the built-in drive power will completely provide care for a small area.
In the middle part of our country, winters are usually frosty and snowy. A DIY chainsaw snow blower will help you clear snow. To do this, you need to equip the device with a screw mechanism. The material for the blades must be durable and elastic. Rubber meets these requirements well. The principle of creating a snow blower mechanism is the same as in other devices. The rotational torque from the engine is supplied to the screw. It is convenient to attach a chainsaw snow blower to a sled, and can be used to dump snow water pipe, having previously made a bend.
So thanks to talent and resourcefulness craftsmen numerous and useful homemade products from a Ural chainsaw.