DIY snowmobile with trimmer engine

Snow scooter with trimmer motor

Homemade snow scooter with your own hands with a trimmer motor: a detailed description of making homemade products with a photo.

If you have a children’s snow scooter, it can be improved, for example, by installing an engine from a trimmer, such a snow scooter with a motor will bring a lot of emotions to your children.

Auto homemade

Homemade cars, tractors, ATVs and ATVs

Materials for making:

• Children’s snow scooter.
• Trimmer (I used Parther t281).
• Ripper attachment with gear.
• Garden wheelbarrow wheels. 2 pieces.
• Chain.
• Office chair leg.
• Bicycle handlebar grip for brakes.

The whole manufacturing process is shown in the photo.

First of all, we disassemble the ripper attachment.

The lug mount must be secured to the wheel rims.

The result is a gearbox with a pair of wheels.

To prevent the wheels from slipping in the snow, we put on chains.

Shortening the trimmer bar and drive cable.

We make the mount for the gearbox from the chair leg. We attach to the frame using this attachment.

Skis can be reinforced with an aluminum corner.

Throttle grip made from bicycle brake grip.

This is how a snow scooter with a trimmer motor turned out, great fun for children.

Collapsible design, easily fits into the trunk of a car.

Video of the author of a homemade snow scooter with tests of a homemade snow scooter, attached.

How to make a snowmobile from a chainsaw of scrap materials with your own hands

Snowmobiles are an alternative means of transporting people and goods across snowy terrain. The domestic market offers a wide selection of mechanisms necessary for tourist and scientific expeditions, hunting, outdoor activities, sports and travel in winter.

The cost of the units is high. Therefore, many craftsmen make them on their own from any stale equipment: a walk-behind tractor, a mini-tractor, a boat. Chainsaw snowmobiles are the simplest design solutions.

Snowmobile

A snowmobile is a home-made version of a vehicle on snow and ice. Making them is easier than making a snowmobile. Self-propelled sleds are equipped with a chainsaw engine with a pushing propeller, have a chassis with 3 or 4 skis. They can reach high speeds. The only drawback is the impossibility of driving through hard-to-reach areas, so they are operated on a flat surface.

Caterpillar

A mechanism from the Buran unit is used as a caterpillar, the tape is shortened by 0.75-1 m. The gears of the gear drive are planted on the transverse shafts, then the canvas is laid. The cogwheel of the caterpillar is made of a 15 mm nylon sheet.

Brake system

If the snowmobile is designed for driving at low speeds up to 30 km / h, then the braking system may not be provided. Stopping of transport is carried out by friction in the running and transmission systems.

Snow scooter

Snow scooters are guided sleds for downhill skiing from a steep snow-covered mountain. They are suitable for outdoor activities for both children and adults. Everyone can make a children’s snow scooter. The design is a frame with a chainsaw motor, built-in seat, controls and 3 metal or wooden skis.

The advantages of winter homemade products:

• maneuverability;
• high speed;
• ease of carrying;
• stability;
• development of the vestibular apparatus in a child.

The disadvantage of the model is the inability to drive on a flat road.

Steering

Control. steering on support-steering skis. The support levers are rigidly connected to the steering shaft bipod. Two-handed steering wheel, gas handle is mounted on the right side.

Children’s snow scooter with a motor with their own hands with a chainsaw engine

How to make a snowmobile from a trimmer with your own hands

Homemade cars, tractors, ATVs and ATVs

Homemade snow scooter with your own hands with a trimmer motor: a detailed description of making a homemade product with a photo.

If you have a children’s snow scooter, it can be improved, for example, by installing an engine from a trimmer, such a snow scooter with a motor will bring a lot of emotions to your children.

Materials for making:

• Children’s snow scooter.
• Trimmer (I used Parther t281).
• Ripper attachment with gear.
• Garden wheelbarrow wheels. 2 pieces.
• Chain.
• Office chair leg.
• Bicycle handlebar grip for brakes.

The whole manufacturing process is shown in the photo.

First of all, we disassemble the ripper attachment.

The lug mount must be secured to the wheel rims.

The result is a gearbox with a pair of wheels.

To prevent the wheels from slipping in the snow, we put on chains.

Shortening the trimmer bar and drive cable.

We make the mount for the gear from the chair leg. We attach to the frame using this attachment.

Skis can be reinforced with an aluminum corner.

Throttle grip made from bicycle brake grip.

This is how a snow scooter with a trimmer motor turned out, great fun for children.

Collapsible design, easily fits into the trunk of a car.

Video of the author of a homemade snow scooter with tests of a homemade snow scooter, attached.

Rat Rod Go Kart Build – 340 Rotax Skidoo Engine

In winter, movement is difficult, therefore, a universal transport is needed to drive through snowdrifts. Using the tools at hand, you can start designing your snowmobile. With the right approach, a homemade snow scooter will become an indispensable helper in winter.

You can start assembling the structure after drawing up the drawings. The reliability of the future vehicle depends on their accuracy.

You can make a snowmobile using one of the chainsaws as a basis:

• Friendship. Serves as a power plant. It will turn out to be a simple device without unnecessary details. Such vehicles will have a fairly large mass with little power, and there are no safety covers. The saw motor has a power of 1 kW and runs on gasoline. Tool weight 12 kilograms;
• Ural. A more reliable option with more power and less weight. The tool is environmentally friendly, it works even at subzero temperatures. 2-stroke saw motor with 3.6 kW. Tool weight 11.7 kilograms;
• Calm. The advantage of this saw is environmental friendliness and low noise level.

Having decided on a chainsaw, you can start designing a snowmobile machine.

The design consists of the following parts:

• Steering wheel;
• Fuel tank;
• Power plant of gasoline-powered tools;
• Steering ski rack bushings (two tubes with a diameter of 30 cm);
• Steering skis;
• Crawler gear;
• Caterpillar track;
• Support base;
• Track roller;
• Backrest strut;
• Track tensioner;
• Cogwheel tensioning track;
• Bearing;
• Trunk;
• Driver’s seat;
• 1st part of the chain drive;
• 2nd part of the chain drive;
• Driver’s seat backrest holder;
• Driven sprocket 1st gear;
• 2nd gear drive sprocket;
• Sprockets for the 2nd stage of the chain drive;
• Sprockets for the 1st stage of the chain transmission;
• Knuckle arm;
• Traction steering rack;
• Bipod with steering shaft;
• Front axle beams;
• Track attachment shaft;
• Track Tension Axles.

How to make a snowmobile out of a chainsaw?

The manufacturing scheme and drawings will allow you to correctly connect the power plant, transmission, ligature or caterpillar. There is no need to make the latter yourself. they will come from Buran. And for children’s transport, an ordinary ski track is quite enough.

Sequence of work:

• Frame. Spot welding joins a sheet of steel of two millimeters in the middle of the structure. It will house a gearbox and a chain drive shaft;
• Also, a small module under the operator’s seat is mounted in the middle;
• The front of the support base and the traverse of the front axle are held together by a beam. For a connecting element, you can take a water pipe with a diameter of 1.5 centimeters or more. At the end of the pipe, weld the bushings under the steering, in the middle, mount the rack;
• Rack. Steel corners of 33 centimeters will do. They are connected by steel crossbars. gussets of two millimeters, ensuring the reliability and durability of the structure. The stand is needed to secure the motor;
• Caterpillar. Using a ready-made element from “Buran”, you need to cut the workpiece by 0.5 meters. Secures the finished track with a conveyor belt. For the manufacture of gears, 1.5 centimeters of cardboard are suitable;
• Drive shaft. A pipe with a thickness of 1.4 centimeters is suitable. The top flange secures the gears. Studs are welded on the back of the drive shaft;
• Motor. A snow scooter with a motor from a chainsaw, therefore the installation used itself must be in good working order. Even an old gasoline-powered tool requires competent maintenance and use. The gearbox must run smoothly. The power of such a snowmobile is not enough to transport goods and more than one person;
• Asterisks. The right tip will be longer than the left. The elongation is necessary to produce the keyway that secures the chain sprocket. Fixes the sprocket of the caterpillar shaft with a nut with the necessary thread pre-made on it;
• Steering. A handlebar from a scooter or bicycle will do. The main thing is the correct installation. the central axis should adjust the tractive effort to be able to control the skis and, accordingly, easily move;
• Brake and headlights. There is no particular need for a braking system, since the vehicle does not pick up high speed. For movement at night, you can install a simple lighting system.

Self-made construction is not registered, therefore it is worth using the vehicle away from public roads.

Homemade products from the engine from the washing machine:

How to connect a motor from an old washing machine with or without a capacitor
2. Homemade emery from the washing machine engine
3. Homemade generator from the engine from the washing machine
4. Connecting and adjusting the speed of the collector motor from the automatic washing machine
5. Potter’s wheel from the washing machine
6. Lathe from washing machine automatic machine
7. Wood splitter with a washing machine motor
8. Homemade concrete mixer

Making a snowmobile with our own hands. it couldn’t be easier!

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 track, 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 won’t accelerate quickly. I was going to ride a snowmobile not on rolled tracks, but on loose snow, so I abandoned the soft suspension of the caterpillar 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 for wood, I cut along plastic pipes for lugs.

The lugs were attached to the conveyor belt with two 6 mm diameter 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. Drilled 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.

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 25 × 25 mm.

Since the ski and rudder pivot pins 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. He screwed in the pipes with an external thread, to which he welded the bipod of the steering rack of the skis.

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

The chain tension is adjusted by displacing the motor.

The snowmobile is very easy to operate. When the engine speed is increased with the throttle grip located on the handlebar, 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 can be useful when repeating this construction.

I cut the pipe for the tracks with a hand-held circular saw on wood, first on one side, then on the other. 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.

Caterpillars can be made of any width. And every 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 be poorly controlled and the engine is loaded more, and with a small track in loose deep snow, it can fall through.

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 without a slip, so the “barrels” can not be installed, which will reduce the weight of the snowmobile.

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.
All together weighs 76 kg.
The weight of some parts can be reduced even further. Nevertheless, the weight for a snowmobile 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.The pitch of the track lugs 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.

Sergey KHOMYAKOV, Moscow ([email protected])

Homemade snowmobile from a chainsaw with your own hands

In winter, movement is difficult, therefore, a universal transport is needed to drive through snowdrifts. Using the tools at hand, you can start designing your snowmobile. With the right approach, a homemade snow scooter will become an indispensable helper in winter.

You can start assembling the structure after drawing up the drawings. The reliability of the future vehicle depends on their accuracy.

You can make a snowmobile using one of the chainsaws as a basis:

• Friendship. Serves as a power plant. It will turn out to be a simple device without unnecessary details. Such vehicles will have a fairly large mass with little power, and there are no safety covers. The saw motor has a power of 1 kW and runs on gasoline. Tool weight 12 kilograms;
• Ural. A more reliable option with more power and less weight. The tool is environmentally friendly, it works even at subzero temperatures. 2-stroke saw motor with 3.6 kW. Tool weight 11.7 kilograms;
• Calm. The advantage of this saw is environmental friendliness and low noise level.

Having decided on a chainsaw, you can start designing a snowmobile machine.

The design consists of the following parts:

• Steering wheel;
• Fuel tank;
• Power plant of gasoline-powered tools;
• Steering ski rack bushings (two tubes with a diameter of 30 cm);
• Steering skis;
• Crawler gear;
• Caterpillar track;
• Support base;
• Track roller;
• Backrest strut;
• Track tensioner;
• Cogwheel tensioning track;
• Bearing;
• Trunk;
• Driver’s seat;
• 1st part of the chain drive;
• 2nd part of the chain drive;
• Driver’s seat backrest holder;
• Driven sprocket 1st gear;
• 2nd gear drive sprocket;
• Sprockets for the 2nd stage of the chain drive;
• Sprockets for the 1st stage of the chain transmission;
• Knuckle arm;
• Traction steering rack;
• Bipod with steering shaft;
• Front axle beams;
• Track attachment shaft;
• Track Tension Axles.

How to make a snowmobile out of a chainsaw?

The manufacturing scheme and drawings will allow you to correctly connect the power plant, transmission, ligature or caterpillar. There is no need to make the latter yourself. they will come from Buran. And for children’s transport, an ordinary ski track is quite enough.

Sequence of work:

• Frame. Spot welding joins a sheet of steel of two millimeters in the middle of the structure. It will house a gearbox and a chain drive shaft;
• Also, a small module under the operator’s seat is mounted in the middle;
• The front of the support base and the traverse of the front axle are held together by a beam. For a connecting element, you can take a water pipe with a diameter of 1.5 centimeters or more. At the end of the pipe, weld the bushings under the steering, in the middle, mount the rack;
• Rack. Steel corners of 33 centimeters will do. They are connected by steel crossbars. gussets of two millimeters, ensuring the reliability and durability of the structure. The stand is needed to secure the motor;
• Caterpillar. Using a ready-made element from “Buran”, you need to cut the workpiece by 0.5 meters. Secures the finished track with a conveyor belt. For the manufacture of gears, 1.5 centimeters of cardboard are suitable;
• Drive shaft. A pipe with a thickness of 1.4 centimeters is suitable. The top flange secures the gears. Studs are welded on the back of the drive shaft;
• Motor. A snow scooter with a motor from a chainsaw, therefore the installation used itself must be in good working order. Even an old gasoline-powered tool requires competent maintenance and use. The gearbox must run smoothly. The power of such a snowmobile is not enough to transport goods and more than one person;
• Asterisks. The right tip will be longer than the left. The elongation is necessary to produce the keyway that secures the chain sprocket. Fixes the sprocket of the caterpillar shaft with a nut with the necessary thread pre-made on it;
• Steering. A handlebar from a scooter or bicycle will do. The main thing is the correct installation. the central axis should adjust the tractive effort to be able to control the skis and, accordingly, easily move;
• Brake and headlights. There is no particular need for a braking system, since the vehicle does not pick up high speed. For movement at night, you can install a simple lighting system.

Self-made construction is not registered, therefore it is worth using the vehicle away from public roads.

Motor sleds

Motorcycle sleds are a motor-upgraded foot snow scooter or Finnish sleigh, or are made entirely from scrap materials found in the garage, or purchased at dismantling markets. Main components:

The assembly should start from the engine, connecting a chain, cables and tubes to it, which will serve as a transmission for future snowmobiles. It is best to fix the skis on a sedentary, level base. on the floor or table. Next, a frame with a rudder is attached to the skis, a motor is installed. Test the sled before installing the seat to make sure any bugs are fixed. And the last one is the seat, if provided.

Ice screw

Trimmer ice auger is a low-power unit for winter fishing enthusiasts, characterized by its low weight and convenient transportation. In order to save money on the purchase of new equipment and the forces required for manual ice drilling, anglers make them from old trimmers. For this you need:

• petrol cutter;
• factory or homemade drill;
• materials at hand.

It is difficult to make an ice screw at home. Parts to look out for are the augers and knife base.

To create augers you need:

• Calculate the dimensions of the product segments.
• Prepare metal blanks, mark, cut out a sector, weld the segments together. The result is a steel spring welded on one side.
• Stretch the spring by a predetermined step on a special machine in order to weld the segments on the other side.
• Grab the flange and weld it to the pipe.
• Boil the auger connections and paint.
• When choosing the rotation of the auger, take into account the direction of rotation of the gasoline tool.

Converting the trimmer to a gas drill is suitable for machines with a folding boom. The connection adapter is the easiest to prepare.

If it is necessary to increase the rigidity and stability of the mechanism, a strong frame is made for attaching the gearbox and the motor.

Motor-drills. units for making holes for installing wooden piles, laying a foundation, drilling wells. The principle of operation and manufacturing method is similar.

Snowmobile or snow scooter

Based on the motor, the trimmer can be converted into a self-propelled vehicle for movement on snow-covered flat terrain or a simple snow scooter (motorized sledges), shown in the video, for a steep descent from the mountain.

The most popular homemade petrol and electric trimmer motors

For everyday chores, outdoor activities or travel, using a trimmer motor, many craftsmen can make different devices on their own:

• cultivators;
• motorbikes;
• snow scooters;
• snow blowers.

Homemade products are much cheaper than factory counterparts, but at the same time they are not inferior in power and efficiency. Using the necessary set of tools and a minimum of knowledge, you can achieve great results in the manufacture of motor vehicles with your own hands. Such units are distinguished by their simplicity of design and minimal financial costs.

Mottyapka

And also, in addition to a home-made cultivation attachment, which, together with a brushcutter, can easily replace a light walk-behind tractor; the trimmer can be turned into a weed hoe.

• To make a nozzle, you need a thick sheet of stainless steel, from which a circle is cut.
• In the center of the circle we make a hole for joining it with the trimmer, and it is also necessary to drill small holes (selected according to the diameter of the bolts, which will be needed later) along the entire plane of the circle.
• We fasten the bolts in the holes with nuts.

Such a simple “hedgehog” will help any gardener in the fight against weeds.

Cultivator

For motorized soil cultivation, a cultivator is made from a trimmer with your own hands. The motor power must be at least 2 HP. from. When using an electric trimmer, you need to stock up on an extension cord so that the production process takes place throughout the entire area.

The main part of a motor-cultivator is a nozzle. It is suitable for garden fork rods 10-15 cm long.

The part is manufactured as follows:

• first you need to flatten the teeth to a width of 1 cm;
• sharpen cutting blades for milling cutters on an emery wheel;
• cut a ring with a diameter of 10 cm from a metal sheet with a jigsaw;
• grind the workpiece;
• weld 3 cutters to a steel circle at an equal distance from each other.

If there is a reverse thread, the nozzle is screwed on, having previously welded the pipe with a nut.

Self-propelled

Self-propelled. frame structure, including:

• skiing;
• engine;
• seat.

The frame is made of welded spars, on which the posts from the corners of 30×30 cm and the cross members are welded. A steel pipe with a diameter of 14 mm is taken as a drive shaft. Skis. support and steering. The snowmobile is moved by a screw or chain drive.

Snow blower

A snowblower is a machine that shovels snow and throws it to the sides. It works according to the screw and rotary principles.

The screw mechanisms carry out a 1-stage intake of the snow mass. The device is located in the front of the unit, on the sides and on top it is covered with a cover. In the process of rotation around its own axis, the auger captures, grinds snow and ice, crushes them into small fractions, transfers them inside the equipment to the throwing shovel, then to the outlet pipe. For freshly fallen snow, mechanisms with a smooth edge are suitable, for stale snow. with a toothed.

In a rotary-type unit, the snow cover is cleared by a rotor. The attachment is attached to the drive shaft and works like a vacuum cleaner. The blades protrude forward, making it much easier to grip the snow. In a homemade trimmer snow blower, they are made of high-quality metal or durable plastic. The rotor generates increased centrifugal force. Snow is thrown away, passing through the branch pipe, at a distance of up to 12 m.

Both electric motors and fuel-driven motors are suitable for snow throwers.

Sleigh and Chainsaw = Snowmobile ! A new Creation

If the radius of action of the mechanism is within the house, an electric motor is installed from the trimmer, while taking into account the waterproofing of the unit. When carrying out work in summer cottages, it is better to install a low-power gasoline engine.

At the preparatory stage for a snow blower from a trimmer with your own hands, drawings of parts and assemblies are developed according to a well-thought-out plan, technology and based on the availability of material and equipment. For assembly, use the lawn mower scheme.

Necessary equipment for making a homemade car:

• Gas trimmer with straight bar and gear.
• 1.5mm steel sheet or metal barrel.
• Milling cutter with teeth.
• Set of tools:
• drill;
• drill;
• spanners.
• Bulgarian.
• Welding machine.

First, make the rotor:

• 4 rectangles 25×10 cm are cut out of a sheet of steel.
• One of the corners of the long side of the part is turned in the form of a blade.

The deflector is made of metal strips 30×15 cm, bent, welded on the sides 10 cm high.For the scapula, take a workpiece 30×40 cm, fold the edges to a height of 2 cm.

In order to make a snow blower with your own hands from a trimmer, perform the following algorithm of actions:

• the bottom of the barrels retreat 15 cm, cut in a circle;
• at the bottom of the structure, a hole is drilled for the protrusion of the gearbox and 3 additional holes for fixing the shield;
• from the side, make a square with a side of 10 cm for unloading the snow mass;
• 1/3 of the front of the structure is covered with a metal sheet so that the square hole is located in the center of the damper;
• the finished rotor blades are cross welded to the petrol trimmer disk;
• a deflector is installed to the body of the unit at the place of snow discharge and is welded;
• a scapula is attached from below;
• mount the gearbox by bolting;
• insert the rotor.

During work, use a welding machine. Welding for thin metal is a complex technological process that only a professional can handle. Therefore, it is better to use the services of an experienced welder in the manufacture of some parts.

Snowmobile from a trimmer with your own hands drawings

Homemade products from the engine from the washing machine:

How to connect a motor from an old washing machine with or without a capacitor
2. Homemade emery from the washing machine engine
3. Homemade generator from the engine from the washing machine
4. Connecting and adjusting the speed of the collector motor from the automatic washing machine
5. Potter’s wheel from the washing machine
6. Lathe from washing machine automatic machine
7. Wood splitter with a washing machine motor
8. Homemade concrete mixer

Making a snowmobile with our own hands. it couldn’t be easier!

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 track, 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 won’t accelerate quickly. I was going to ride a snowmobile not on rolled tracks, but on loose snow, so I abandoned the soft suspension of the caterpillar 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 for wood, I cut along plastic pipes for lugs.

The lugs were attached to the conveyor belt with two 6 mm diameter 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. Drilled 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.

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 25 × 25 mm.

Since the ski and rudder pivot pins 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. He screwed in the pipes with an external thread, to which he welded the bipod of the steering rack of the skis.

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

The chain tension is adjusted by displacing the motor.

The snowmobile is very easy to operate. When the engine speed is increased with the throttle grip located on the handlebar, 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 can be useful when repeating this construction.

I cut the pipe for the tracks with a hand-held circular saw on wood, first on one side, then on the other. 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.

Caterpillars can be made of any width. And every 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 be poorly controlled and the engine is loaded more, and with a small track in loose deep snow, it can fall through.

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 without a slip, so the “barrels” can not be installed, which will reduce the weight of the snowmobile.

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.
All together weighs 76 kg.
The weight of some parts can be reduced even further. Nevertheless, the weight for a snowmobile 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.The pitch of the track lugs 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.

Sergey KHOMYAKOV, Moscow ([email protected])

If you like to tinker with something in the garage, make a unique type of transport, this instruction is just for you. Here you will find out how you can equip your scooter with a gasoline engine. As a power unit, the author decided to use an unnecessary trimmer motor. Similarly, you can put the engine from a chainsaw, lawn mower, and so on.

DIY materials and tools:
– an old scooter (you can make it from scratch);
– engine from petrol cutters;
– bicycle wheels (will be used for spare parts);
– bicycle chain;
– metal pipes (found in an unnecessary chair);
– throttle control cable;
– welding;
– grinder;
– paint
– wrenches, screwdrivers and more.

Gas scooter manufacturing process:

Step one. Freewheel device
A feature of this homemade product can be considered the fact that the rear wheel here is connected to the engine through a bicycle hub. This means that by gaining a certain speed and dropping the gas, you can roll by inertia. But this is very convenient, because it allows you to significantly save fuel, as well as prevent engine overheating.

In other similar variants, the torque is transmitted directly to the tire, which is not very professional.

As for the installation of the carriage, he will have to tinker here. You may need to make some spacers, bushings, and so on to pull everything together.

Step two. Installing the sprocket on the engine
Gas cutters are different, the author needed one that is equipped with a centrifugal clutch. Otherwise, if it is not there, it will be very difficult to use the scooter, because when the engine starts, it will immediately leave. And so the engine will work at idle without any problems, and will only move with an increase in the crankshaft speed.

From the scythe engine, you need to cut off a piece of the shaft that goes to the knife, that is, the area behind the clutch. As a result, the shaft will remain, to which the sprocket is welded. The star needs to be well centered. Most likely, you will have to pick up or make a bushing.

Step three. Frame diagram
At first, the author made a wooden frame to decide on the creation of a metal one. The problem was that the mountings of the new rear wheel did not fit the old frame.

As a result, it was necessary to make another rear fork. It must support not only the wheel, but also the engine. A chair came to the rescue as materials, in other words, steel pipes are needed. Well, then the pipes are cut exactly according to the scheme and welded well. A mount must be made under the engine; for such purposes, a piece of a strong steel plate will be needed. In it, in the center, you need to cut a hole for the clutch, and also drill four mounting holes for mounting the motor. Well, this sheet is welded to the rear fork.

Step four. Assembly
Now everything can be put together.

Step five. Painting
At this stage, the author paints the frame. If the native board has become bad or does not exist at all, then it can be made from a sheet of plywood, and then painted. The size is chosen depending on the needs.

Step six. We connect the engine
After painting, the engine is installed in place and everything is finally assembled. It is important to tighten the chain, otherwise it will fly off. Before riding, you need to spin the rear wheel, and make sure that all the sprockets are centered and clearly opposite each other.

To control the engine, you will need to connect the ignition button, as well as the throttle control cable. However, the button may not be displayed on the steering wheel, but the throttle knob will be required. As a cable, you can use a cable from the brakes of a bicycle or from a gear change. As for the handle, the throttle handle can be made from the gear shift knob by throwing out unnecessary parts from it, as a result, the handle will spin freely. Well, or, as a last resort, you can control the throttle using the bicycle brake handle, but this is not very convenient, since you can confuse everything while riding.

To further strengthen the clutch axle, a steel axle and bearing were found, and an additional bracket was welded onto the frame. The axle now has two bearings, which significantly reduces the traction load. The axle is connected with a nut, since there is a thread on the motor axis.