Making a snowmobile with your own hands. Compact homemade snowmobile How to make homemade snowmobiles yourself

Thanks to the snowmobile in winter, the user can easily carry luggage on board and move around alone or with passengers, even in the presence of deep snow outside the window. For the bulk of the population, such a technique is considered too expensive, so it is advisable to make a self-propelled drive from a walk-behind tractor with your own hands. How to do this, and what type of technique is better to give preference to?

Types of homemade snowmobiles

Even without global modifications, you can get a decent all-terrain vehicle by putting snowmobile wheels on the walk-behind tractor and fixing a small trailer. As for snowmobile wheels, they can be made in the form of tracks or wheels directly.

Crawler

The caterpillar track is constructively considered more difficult to perform. In fact, we are talking about a caterpillar attachment, the operation of which is provided by the main motor. Units of this kind are distinguished by a high level of cross-country ability, reliability and stability. If there is heavy snowfall in your area in winter, this technique will be indispensable.

For making the tracks directly, a conveyor belt, a motorcycle chain and a water pipe are suitable.

The use of a fishing line for sheathing the edges of the tape will significantly extend its operational life. Aim for 10 mm spacing when sewing stitches. It remains to sew the edges so that the tape is closed in the form of a ring. Even if the snow is loose and deep, the self-made self-propelled gun will not slip, but remember that with high cross-country ability, maneuverability will decrease, since the weight factor will play a role. The undercarriage of the tracked unit can reach a weight of 30 kg.

Wheel travel

If the snow cover in winter in your area is not too high, it is more advisable and economical to give preference to the wheeled option. All you need is a compact trailer and matching wheels. The maneuverability in this case is much higher, since the specific weight of the rear-mounted wheels is relatively low. The installation of special chains will prevent the equipment from slipping in the loose snow cover. There are two ways to make wheels:

1. Truck cameras can be used to craft wheels. Lower them and put them on the wheels of the walk-behind tractor. In the final step, use chains to wind the wheels, fix the ends and only pump them with a pump last.
2. Equip the wheels of the trailer and walk-behind tractor with metal hoops. One per wheel is sufficient. When choosing the size of the hoop, be guided by the dimensions of the wheel. The width should be 2-3 times larger than that of the wheel, and the diameter should be slightly smaller. Weld some metal plates on the back of the hoop to increase the level of adhesion to the surface and ensure the stability of the unit. The optimum plate thickness is 25 mm. This will create a simulated lug. Before putting on the hoop, be sure to lower the cameras, they will be tightly pressed against it after inflation.

A homemade snowmobile from a walk-behind tractor is represented by key elements in the form of a driving and driven part. The latter consists of runners, steering column and shock absorbers. The driving part should consist of a drive, a frame and a power unit. To have a clear idea of ​​the design of future home-made equipment, select a suitable drawing, taking into account the conditions of further operation, then complete a sketch and make a cardboard layout.

As for the options for operation, they should be thought out in advance, so that when working on a drawing, they should be able to supplement and correct it. So you will have a clear idea of ​​what you can make yourself in the future, and which elements you can get rid of altogether. It remains to decide between wheeled and tracked, both options were discussed in detail above.

Be sure to carefully select your powertrain before final assembly. The three options considered are optimal:

1. A hand-operated motor with a drawbar is the ideal choice. It can be MB-2, MB-1 or Neva. Among the distinguishing characteristics are resistance to extremely low temperatures and high loads, as well as extraordinary reliability.
2. Two-stroke motoblock motors are distinguished by their low weight and simple design. The key benefit is ease of repair.
3. Japanese manufacturers' four-stroke single-cylinder powertrains are also good choices. They must be supplemented with an air cooling system. Among the advantages are resistance to corrosion processes, resistance to overheating and high technical characteristics.

Phased production

It's time to figure out finally how to make a snowmobile out of a walk-behind tractor with your own hands. In the future, this kind of equipment can be used for sports activities, tourist walks or the standard implementation of chores. Do not forget to modify the basic schema after you finally decide on the direction of use. Many consumables can be made independently or borrowed from old technology.

Pay particular attention to calculating the dimensions of the consumables used.

Further step-by-step assembly technology is represented by the following operations.

Use pipes and sheets to weld the frame. Motorcycle frames are ideal, but classic faucets are also a good choice. To create the required shape, use a pipe bender, but first the material will have to be heated with a gas burner. Spot welding will allow you to connect the elements, after which it is necessary to reliably protect the structure from corrosion processes. To do this, it is enough to paint the finished frame.

Once the paint is completely dry, use a one-piece seam to cover all joints. To keep the snowmobile powertrain securely in place, weld the metal bracket directly to the frame.

Subject to the increased massiveness and dimensions of the equipment, the bracket can be chosen from cast iron.

Weld the skis underneath. To do this, heat the steel strips and fold the edges at a 45 degree angle. Since there is a possibility that the metal will return to its original state, it must be hardened. If there is a choice between plastic and wooden skis, definitely give preference to the latter, since they have much better grip.

It's time to install the engine on the bracket, after which it is the turn of the ignition and clutch systems. All elements can be borrowed directly from the walk-behind tractor. Remember to have an oil and fuel tank in the back. Finally, weld on the handles and seat. Manual control should be directed to the right handle. For ease of skiing, attach the vertical axis of the grips to them.

With shock absorbers, the snowmobile will be more comfortable to ride. To achieve the correct design, you can use the levers designed for the motorcycle. They can be new or used, but this point needs to be decided in advance.

Sleds are a great way to carry luggage or passengers. If you decide to use an old sled, make sure it is strong and safe enough.

If you initially have a single-axle two-wheeled walk-behind tractor, a compact trailer will help you turn it into a two-axle four-wheeled snowmobile. It must be welded tightly to the vehicle frame.

I made this snowmobile in just a couple of weekends in the garage in the country. Although its design at first glance looks very simple, nevertheless, in terms of cross-country ability in deep loose or wet snow, it is not inferior to most industrial snowmobiles.

A few years ago, I made a snowmobile for my nine-year-old daughter with a homemade track made of conveyor belt and plastic water pipes as lugs. At first I had doubts about the reliability of such a caterpillar and how the plastic parts would behave in the cold. But during the two-year winter operation, no breakdowns or severe wear of the pipes occurred. This inspired me to create a lightweight snowmobile for myself with the same homemade track.

Realizing perfectly well that the less the weight of the snowmobile and the larger the support area of ​​the track, the better its passability on loose and deep snow will be, I tried to make the structure as light as possible.
The principle of operation of the snowmobile is very simple (fig. 1). Four wheels are installed inside the caterpillar, which, when moving, roll along the conveyor belt, on which the lugs are fixed. And the drive of the caterpillar from the motor is carried out by a chain through the driven shaft with special drive sprockets. I took them from the Buran snowmobile. "

With an engine from a conventional walk-behind tractor with an automatic clutch with a capacity of only 6 hp. you will not accelerate quickly. I was going to ride the snowmobile not on rolled tracks, but on loose snow, so I abandoned the soft suspension of the track and skis to reduce the weight of the snowmobile and simplify the entire structure.

First I made a caterpillar. A plastic water pipe with a diameter of 40 mm was cut into blanks for lugs with a length of 470 mm. Then each workpiece was sawn with a circular saw lengthwise into two equal parts.
Using the tool shown in fig. 2, with a circular saw on wood, I cut plastic pipes for lugs along the length.

The lugs were attached to the conveyor belt with two 6 mm furniture bolts with a large semicircular head. When making a caterpillar, it is very important to maintain the same distance between the lugs, otherwise they will run into the teeth of the drive sprockets and the caterpillar will begin to slip and slide off the rollers.

To drill holes in the conveyor belt for fastening bolts with a diameter of 6 mm, I made a jig. He drilled the holes in the tape with a wood drill with a special sharpening.

Using such a jig, 6 holes can be drilled in the conveyor belt at once for attaching three track lugs.

In the store I bought four inflatable rubber wheels from a garden cart, two drive sprockets from a Buran snowmobile and two closed bearings No. 205 for the drive shaft of the caterpillar.

I asked a turner to make the drive shaft of the track and bearings for the bearings. The frame of the snowmobile was made by myself from square tubes of 25x25 mm.

Since the ski and rudder pivot pivots are on the same line and in the same plane, you can use a continuous steering rod without ball ends.

Ski sleeves are easy to make. I welded 3/4 ”female water pipe fittings to the front cross member. In them he screwed in branch pipes with an external thread, to which he welded the bipod of the steering rack of skis.

I recommend using skis from the Argomak children's snow scooter. They are lighter and more flexible, but they need to be fitted with corners for attaching to the pivot stand of the snowmobile and a metal undercut at the bottom - for better control of the snowmobile when driving on crust or packed snow.

The chain tension is adjusted by shifting the motor.

The snowmobile is very easy to operate. As the engine revs up with the throttle on the handlebars, the automatic centrifugal clutch engages and the snowmobile starts moving. Since the estimated speed of the snowmobile is not high (only about 10-15 km / h) and depends on the density of the snow, the snowmobile is not equipped with brakes. It is enough to reduce the engine speed and the snowmobile stops.

I will share a few tips that you may find useful when repeating this construction.

1. I cut the pipe for the tracks along the wood with a circular saw, first on one side, then on the other. So it turns out smoother than cutting both walls at once. It is more convenient to handle small workpieces. If you immediately cut a long pipe along, then in this case the plastic will melt and the saw blade will clamp.

2. Tracks can be made of any width. And each designer has the right to choose what is more convenient for him: to make a wide but short track or a narrow and long one. Just remember that with a large track, the snowmobile will not handle well and the engine is loaded more, but with a small track in loose deep snow, it can fall through.

3. Some of my photos show that there are plastic "barrels" installed inside the caterpillar. These are the guide stops for the skid, which should prevent the track from sliding off the rollers. But during the operation of the snowmobile, the caterpillar did not slide off the rollers even without a slip, so the "barrels" can not be installed, which will reduce the weight of the snowmobile.

4. At the end of winter, I completely disassembled the snowmobile to determine its weight. The weight of its individual units turned out to be as follows: caterpillar - 9 kg;
drive shaft assembly - 7 kg; two pairs of wheels with axles - 9 kg; engine and steering wheel - 25 kg;
a pair of skis - 5 kg;
frame - 15 kg;
double seat with uprights - 6 kg.
In total, everything together weighs 76 kg.
The weight of some parts can be reduced even further. Still, the weight for a sled with a track of this size is quite satisfactory.

The geometric dimensions of my snowmobile are as follows: the length of the snowmobile frame is 2 m; the distance between the axles of the support wheels (rollers) - 107 cm; track width - 47 cm. Track lug spacing depends on the thickness of the conveyor belt and it must be selected empirically (I got 93 mm).
I do not give the exact dimensions and drawings of the snowmobile parts, since everyone who is going to repeat the design will focus on those parts and components that they can purchase or make on their own.

Fishermen, hunters and winter sports enthusiasts use snowmobiles to travel to the best recreational areas. Even inexpensive models of such equipment cost about a hundred thousand rubles, more often more. Those who want to save money can assemble a homemade snowmobile on tracks in an ordinary garage workshop. The cost of parts for construction does not exceed 40 thousand rubles.

Snowmobile device

Self-made snowmobiles are arranged on caterpillar tracks. The tracks are driven by an internal combustion engine mounted on a rigid metal frame. Supported in working position by wheels and special rollers. Basic execution options:

• With a solid or breakable frame.
• With rigid or shock-absorbed suspension.
• With an engine from a walk-behind tractor or from a motorized carriage.

Short skis are used for steering. Lightweight snowmobiles (weighing up to 100 kg), designed for a maximum speed of 15 km / h, do not require a braking system. They stop easily when the engine speed drops. Make a homemade snowmobile on tracks you can use the algorithm:

1. Engine selection, frame and chassis calculation.
2. Spot-welded frame assembly.
3. Steering device.
4. Installation of the engine in the design position for a temporary attachment.
5. Checking the structure for resistance to overturning.
6. If the check is successful - major welding of the frame, installation of the engine.
7. Installation of drive system, bridges.
8. Assembling and installing tracks.
9. Body parts assembly.

After that, the final tests are carried out. If the snowmobile rides normally and does not tip over, then it is driven into the garage and disassembled. The frame is cleaned of rust, painted in 2 layers, the remaining elements are finished, after which they assemble a homemade snowmobile on tracks with their own hands.

Engine selection

Gasoline engines are used for motoblocks or sidecars. The engine speed is controlled by the throttle stick placed on the rudder grip. To make a homemade tracked snowmobile with your own hands, the easiest way is use ready-made small-volume engines for walk-behind tractors with pre-installed:

• Fuel tank.
• Ignition system.
• Reduction gear with a ratio of 1: 2.
• Centrifugal clutch that automatically engages when revving up.

The power of these motors does not exceed 10 horsepower, but they are easy to install: the master does not need to separately assemble the ignition system, supply fuel pipes, adjust the clutch, etc. There are different options on the market:

If it is not possible to purchase a ready-made engine from a walk-behind tractor, then you can use an engine from a motorized carriage. Such engines are more powerful by 10-15 horsepower, but require self-assembly. The system includes:

• Engine.
• Clutch.
• Reducer.
• Gas tank (volume 5-10 liters).
• Muffler.
• Generator.
• Switch and electronic ignition coil.

Some of the elements will fit from old motorcycles (Minsk, Vostok, Java, Ural). The gas tank is positioned as close to the carburetor as possible to shorten the length of the pipes.

Frame and body

It is recommended to draw up a drawing of the frame before work. The structure is welded from a 25 x 25 mm square tube with a wall thickness of 2 mm. For payloads exceeding 150 kg, the section size is increased to 30 x 25 mm. The loading area and body elements are sheathed with plywood. Seats are matched with a hydrophobic coating.

In the center of the fracture frame, there is a hinge that allows rotation around a vertical axis. The maximum angle of rotation is limited by welding metal plates. The front half is used for steering and the engine is placed on the rear frame.

The one-piece frame is welded in the form of a rectangle, inside which bridges and tracks are located. The engine is placed at the front on a special platform, rigidly welded to the rest of the frame. In both cases, the motor is placed in the transverse direction (the shaft extends to the end).

Drive system

A small diameter drive sprocket is installed on the motor output shaft. From it, the torque is transmitted through the chain to the driven shaft located under the engine seat. On the driven shaft there are:

• Large diameter driven sprocket.
• Cogwheels that drive the tracks.
• Track guides.

The driven shaft is mounted on the frame with bearings. The cogwheels push the tracks, driving the tracks. The chain and sprockets are removed from one device. Old motorcycles and snowmobiles ("Buran") are suitable for the role of a donor. The cogwheels for tracks can only be removed from other tracked vehicles.

The guide rollers rotate with the shaft, are attached next to the gear wheels and serve to tension the belt. They are made of wood or plastic and have a layer of soft rubber at the ends. Rubber prevents damage to the track. It is easy to make such rollers yourself by fixing the edging with a furniture stapler.

Calculation and assembly of the caterpillar

The caterpillar is a tape on the outer surface of which the tracks are fixed. Tracks are rigid lugs installed along the entire length of the tracks. Track options:

• Made of 3 mm thick conveyor belt.
• From a car tire.
• From V-belts.
• Factory-made ready-made caterpillars.

The conveyor belt must be looped back. Its strength is only sufficient for light snowmobiles with engines no more powerful than 10 hp. with. Car tires are stronger than tape and are suitable for powerful engines. Solid tires do not need to be looped back, so the chance of rupture is minimal. A tire of the right length is more difficult to pick up than a tape.

Ready tracks are removed from other similar equipment (snowmobiles "Buran", "Sherkhan"). Grousers are installed on them from the factory. Products are not suitable for use with low-power motors from walk-behind tractors. Self-made snowmobiles made from "Buran" tracks must have gear wheels from the same "donor".

The size of the track is selected according to the required driving characteristics: the wider the width, the lower the controllability, but the higher the cross-country ability. The minimum area of ​​the contact patch from a snowmobile (skis and tracks) should be such that the pressure from the equipped vehicle does not exceed 0.4 kg / cm 2 of the surface. In light snowmobiles, a conveyor belt 300 mm wide is used, cut lengthwise into 2 strips of 150 mm.

Preparing the ribbon

The tracks are attached to homemade tracks with M6 bolts with a wide head. The bolts are fixed with a nut, a washer and a grover are used. Before fastening, leading holes with a diameter of 6 mm are drilled in the tape and tracks. When drilling, a jig and wood drills with a special sharpening are used.

The conveyor belt is also looped back with M6 bolts. To do this, the edges of the tape overlap each other with an overlap of 3-5 cm, the connection contains 1-2 rows of bolts. For track width 150 mm withstand the following distances:

• From the edge of the tape 15-20 mm.
• Between the bolts on the tracks 100-120 mm.
• Between the bolts when ringing 25-30 mm.

Just one track requires 2 bolts, one tape connection - 5-10 bolts, depending on the number of rows. When using car tires, only the treadmill is left, and the sidewalls are removed with a shoe knife.

The tracks are made of a polyethylene pipe with a diameter of 40 mm with a wall thickness of 5 mm, sawn in half in the longitudinal direction. An entire section of the lug is adhered to the belt. In light snowmobiles, one track connects the track pair. With a track width of 150 mm, the track length is 450-500 mm.

The lugs are cut with a circular saw into wood. A special machine is used with two guides (metal and wood), rigidly fixed on a fixed tabletop. The pipe walls are sawn in turn.

The distance between the tracks depends on the parameters of the gear wheels on the drive shaft. Usually it is 5-7 cm. The specified distance is maintained with an error of no more than 3 mm. Otherwise, the operation of the drive is disrupted: the lugs "run over" the teeth of the driving wheels, the caterpillar begins to slip and fly off the rollers.

Chassis

Lightweight snowmobiles designed for riding on loose snow are equipped with an articulated suspension made of an extended M16 nut. This is a lightweight design with a simple device that does not provide a comfortable ride for a homemade product.

Snowmobiles on tracks, designed for driving on packed snow, must provide shock absorbers (from a motorcycle or moped). Shock absorbers are installed at the points of attachment of skis and bridges to the frame. The suspension travel is selected so that the moving parts do not touch the snowmobile body during operation.

Steering wheel and skis

The steering is displayed on two front skis according to a scheme structurally similar to the suspension. It is made of a threaded stud installed in an elongated M16 nut, rigidly welded to the frame. The steering wheel from a moped or motorcycle ("Minsk") is used.

In total, the design uses 3 plastic skis from a children's scooter (or homemade from plywood 3 mm thick). A pair of front skis are used for taxiing. Skis up to 1 meter long are used, if necessary, reinforced with a steel pipe and plate.

The third ski is supporting, serves to maintain the belt in working order. It is shorter than the others, it is located between the bridges (in the center). A T-beam is attached to the support ski, rigidly welded to the frame. On top of the beam are freely rotating track rollers. Installation of this design is unnecessary if the track does not sag.

Construction of bridges

The bridges are located under the loading dock. One bridge has 2 inflatable wheels from the garden cart and a metal rod. The wheels rotate freely and are not driven. In snowmobiles built on the basis of motors from motoblocks, the wheels are half inflated. Clamps are welded to the outer ends of the wheels, with the help of which the axles are attached to the frame.

The front axle is stationary, its clips are rigidly welded to the frame. The rear axle should move freely along the frame, as it serves to tension the track. Its locks provide for frictional tightening of M10 bolts, securing the bridge in the working position.

After people see the prices for snowmobiles in the store, they ask the question of how to make a snowmobile from a walk-behind tractor yourself, how expensive and difficult is it? How does the manufacture of homemade products begin - a snowmobile from a walk-behind tractor? First, you need to determine what engine power to use. We used a 6-horsepower walk-behind tractor as an engine. Usually, four-stroke engines with forced air or water cooling are installed on walk-behind tractors.

From the walk-behind tractor, you can also use a reverse gear, centrifugal clutch, steering and fuel tank. Next, you need to think about the propulsion of the snowmobile. Most of them are equipped with a caterpillar drive.

The best homemade products - a snowmobile from a walk-behind tractor

When making a homemade snowmobile, tracks from other snowmobile machines are used for it, or homemade ones, assembled from scrap materials. After choosing a track, you need to decide what type of suspension to use. There are two main types to choose from: roller suspension and skid suspension.

Each of them has both advantages and disadvantages. After that, it is important to decide what layout the snowmobile will have. Usually, two steering skis are installed on the front of the snowmobile and a track block at the rear.

The engine can be mounted to either the rear or the front of the snowmobile.

How to make a snowmobile from a walk-behind tractor yourself

This snowmobile can be made in a few weekends at the dacha in the garage. At first glance, its design looks very simple. If you compare its cross-country ability in wet or loose snow, it will not yield to many industrial snowmobiles.

The creation of the snowmobile was based on the principle: the less weight and the larger the track size, the higher its passability on deep and loose snow. Therefore, the design will be as light as possible.

How to make a homemade snowmobile from a walk-behind tractor

Four wheels are installed inside the track. When there is movement, they roll along the conveyor belt, with the lugs fixed. The track is driven by a chain from the motor, special drive sprockets, through the driven shaft. They were taken from Buran.

The engine is taken from a conventional walk-behind tractor, the power of which is 6 hp. You can't accelerate quickly on it. The soft suspension of the ski and track has been removed because the snowmobile is designed to ride on loose snow. This simplifies the design and reduces the weight of the snowmobile.

Snowmobile Track Making

Consider the process of making a caterpillar. Plastic water pipe 40 mm, cut to length 470 mm. They will be used to make blanks for lugs. Then each of them is sawn lengthwise into equal parts with a circular saw.

The lugs are attached with furniture bolts to the conveyor belt. When making a track, it is imperative to keep the lugs at the same distance. Otherwise, the drive sprocket teeth will "run over", as a result of which the caterpillar will slip and slide off the rollers.

A jig was made to drill holes in the conveyor belt for the fastening bolts. To drill the holes, a wood drill with a special sharpening was used.

This jig allows you to simultaneously drill six holes in the conveyor belt to attach three track lugs. There were also purchased leading sprockets (2 pcs), an inflatable rubber wheel (4 pcs), closed bearings No. 205 (2 pcs).

A turner made a bearing support and a track drive shaft. The snowmobile frame is self-made. For this, square pipes 25x25 mm were used. The articulated pivots of the steering wheel and skis are in the same plane and in the same line, so a continuous steering rod without ball ends was used.

Ski sleeves are made quite easily. A 3/4 inch water sleeve is welded onto the front cross member of the frame. Male threads are screwed in there. To them I welded the bipod of the ski rack and tie rod. Angles are installed on the skis, which serve as an attachment to the pivot stand of the snowmobile. A metal undercut is made at the bottom to better control the snowmobile while driving on rolled snow or crust.

Chain tension is adjusted by motor offset

Driving the snowmobile is pretty straightforward. To increase the engine speed, the throttle stick is used, which is located on the steering wheel. This engages an automatic centrifugal clutch, causing the snowmobile to move. Since the engine power is low, the speed of the snowmobile is 10-15 km / h. Therefore no brakes are provided. To stop, you need to slow down the engine.

Tracks are available in any width. Choose what is more convenient to do: a narrow but long track, or a wide but short one. It is important to remember that a larger track will put more stress on the engine and make it more difficult to control the snowmobile. If the caterpillar is made small, then the car can fall through in deep snow.

The weight of the snowmobile with all parts is 76 kg. It includes: a steering wheel and an engine (25 kg), skis (5 kg), wheels with axles (9 kg), a drive shaft (7 kg), a caterpillar (9 kg), a seat with racks (6 kg).

It is possible to reduce the weight of some parts. For this size of tracked snowmobile, the weight is quite satisfactory.

Characteristics of the resulting homemade snowmobile

frame length 2000 mm;
track width 470 mm;
the axial distance of the road wheels is 1070 mm.

Homemade snowmobile from a walk-behind tractor video

As soon as winter begins in our country, given the climate, two-wheeled vehicles are removed to the garage until spring. It is sometimes impossible to use the car for movement due to heavy snow. And here to the aid of all motorists who want to move on a snowy road comes a snowmobile on tracks, which can be made from a walk-behind tractor with your own hands.

Not everyone has the opportunity to buy an additional vehicle, but everyone can independently design a homemade tracked snowmobile from a walk-behind tractor.

Advantages and features of a homemade snowmobile

• The vehicle has a mechanical drive and a tracked walk-behind tractor, when driving on which, you will not get stuck in snowdrifts.
• The steering comes from the skis, and the steering system is in front, so you can easily control it.
• The price when buying a particular vehicle is important. Therefore, if you count, the cost of making a snowmobile yourself will be five times lower than buying it from the manufacturer. And it will come out even cheaper due to the available walk-behind tractor and other parts.
• Reliability - where a person does not pass and a car does not pass, the snowmobile will overcome all obstacles with ease.
• If the snowmobile is made by hand, then the designer approaches the choice of parts very carefully. By doing everything yourself, you are responsible for the quality of your design. In addition, by paying great attention to the components of the mechanism, you make the snowmobile all-round.

The device of a homemade motoblock snowmobile

This is a sought-after invention that you can make yourself if you have quality parts. The walk-behind tractor is taken partially (separate parts) or used completely. If you decide to use it not fully loaded, you need to weld on it a base frame with a rear axle, steering fork and wheels. The most difficult stage in this case is the transformation of the working shaft of the walk-behind tractor into a drive gear.

The most practical and versatile solution in the manufacture of self-propelled vehicles will be the use of parts from the walk-behind tractor. You only need to remove the steering fork and the engine from the finished walk-behind tractor.

The motor can be positioned at the rear of the structure.

Before starting the independent manufacture of the structure, draw a drawing, collect all the necessary material, prepare the tool, and you can start. The design is quite simple and any person can handle it; technical education and any skills are not required for this.

If you did not graduate from the Faculty of Engineering and it is difficult for you to draw up a drawing, use ours.

Drawing of a simple frame for a homemade snowmobile

The drawing shows the frame that you will need when making the snowmobile.

A walk-behind tractor in a homemade tracked snowmobile is the main part due to which your vehicle will move.

If everything is done correctly according to the drawing, you will have a goose-based snowmobile.

Snowmobile frame drawing on tracks

DIY crawler snowmobile making

Before starting work, decide on the tool. We can say with 100% certainty what you need: various screwdrivers, a hammer, welding, a pipe bender (if there is no ready-made frame).

Before preparing a blueprint for making your own snowmobile, familiarize yourself with the standard configuration.

1. Frame. Every snowmobile has a frame: the more complex the structure, the more reliable and strong the frame must be. The best option is to take from an ATV, scooter or motorcycle. If there is no such part, you can weld it yourself from pipes with a diameter of at least 40 mm.
2. Seat. The riding position on the snowmobile must be firm, as the structure itself is quite low.

Prerequisite: the seat must be made of waterproof material.

1. Engine. When choosing an engine, pay attention to its power. If you want a powerful snowmobile, then the engine should be like that.
2. Tank. A container with a volume of 10-15 liters, made of metal, is perfect for a fuel tank.
3. Skis. If you do not have ready-made skis that can be adapted for a snowmobile, you can make them yourself from wood. It is better if it is at least nine-layer plywood.
4. Steering wheel. When choosing a steering wheel, think about your convenience. It is best if it is borrowed from a two-wheeled unit.
5. Caterpillars. Making tracks is perhaps the most difficult part of the entire self-propelled vehicle.
6. Drive unit. For the tracks to spin, you need a drive - the best way to do this is to use a chain from a motorcycle.

Frame

If there is no ready-made frame available, then it is easy to weld it from a profile pipe, and shape it using a pipe bender.

If you cannot independently make calculations and draw up a drawing, then for example, use the drawing from our website.

Once the frame is assembled, treat it with an anti-corrosion agent and paint it with quality paint that will withstand both moisture and frost.

Caterpillars

Everyone who previously independently designed a tracked walk-behind tractor notes: making tracks is the most difficult process in a homemade product.

The easiest way to construct them is from car tires. This option is the most advantageous - high quality and low budget. The part is manufactured in a closed circle, so a tire rupture cannot occur.

Tracks for a snowmobile from a tire (tires)

Caterpillar manufacturing instructions:

• From a car tire: we take the tire and cut off the sides (it is better to do this with a sharp knife). You need to cut so that the flexible part with the protector remains.