Grinder trimmer. Instructions and diagram with explanations

All owners of personal plots are faced with the problem of mowing grass, which grows literally before our eyes, and during the season it is necessary to improve their plot several times. The usual hand scythe has long been replaced by gas trimmers and electric trimmers. But the price for them does not decrease and is quite significant for many owners of dachas and private houses. Craftsmen nevertheless found a way out of this situation and learned to make trimmers with their own hands literally from improvised means, using gas and electric tools not intended for these purposes.

How does a trimmer work?

To make a trimmer at home, you should first understand the principle of its operation and design. In general, all manual mowers are classified into gasoline and electric. The first option is more convenient, because the user is not tied to an outlet, but to make a homemade device, electric motors from household appliances or tools are often used .

The design of both types of manual lawn mowers includes:

• engine (electric or gasoline) - suitable for household tools (screwdriver, drill, grinder), washing machine, and chainsaw;
• tank - for a gasoline engine;
• starter - it is best to use a simple button with a return mechanism;
• the rod is made of solid wood or a metal pipe (aluminum pipe is perfect, since it is lighter), you can also make a sectional design that will allow you to adjust the holder to the height of different people;
• a handle for ease of use, on which a button is placed - it should have a comfortable grip and be made of non-slip material;
• knife or fishing line - it is better to use knives, as the fishing line breaks faster;
• protective casing - powerfully weld from thin metal, cut from a large plastic bottle, or use an old frying pan.

Advice! It is better to make a knife from tool steel, an old circular saw blade or a hacksaw. It can be solid or with a replaceable blade. The second option is more convenient, since if damaged, it will be enough to simply change the edge.

However, it is worth understanding that factory designs are more complex than homemade devices. And you won’t be able to get a complete analogue of a store-bought trimmer. Below are recommendations for assembling a functional hand mower from various equipment.

Principles of using electric motors

The electric motor can be single-phase, operating from a 220 V network, or three-phase. When connecting the motor, you must follow all safety rules when working with electrical appliances. RCD protection for a single-phase electric motor must be provided, and a powerful three-phase motor must have capacitors in the circuit corresponding to the capacitance.

For a DIY electric lawn mower, you can use a powerful, low-speed drill with a speed of 1500-3000 rpm. You need to choose the right ratio of power and swath width so as not to overload the motor. Installed on the platform, a corded or corded drill will create the necessary torque and the grass will be mowed. During operation, do not forget to observe rest intervals to cool the brush motor. This tool will help clean the local area, folds easily and does not require much storage space. The platform on which the engine is installed must be narrow so that the wall area can be processed. Stability depends on the location of the center of gravity. The lower it is, the lower the tipping moment of the platform. How to properly price a lawn mower with your own hands, watch the video:

https://youtube.com/watch?v=HSzh7bGykq8

When creating a tool yourself, remember that it is a highly dangerous tool. It is necessary to include in the circuit a locking button that is activated when the knife jams or breaks. You cannot operate electric mowers in wet weather, such as morning dew.

More complex models with an engine with a power of 1.5 to 6 kW are installed on a specially made sole. It is better to use an asynchronous motor, it is less noisy. The chassis consists of metal rubber-coated wheels with a wide tread so that the grass wrinkles less. Bearing units in bushings on the axle are more reliable than plastic liners.

You can make a deck and a knife using an old frying pan and a tool steel plate. The design, when knives are attached to the mandrel, is more efficient

It is important to observe the proportions and profile of the sharpened edges, using the drawings in the photo of the lawn mower with your own hands

Correct alignment is of great importance for the performance of a high-speed unit. A slight runout can create strong vibration, destroy connections, and create backlash due to the wear of seats.

Households always accumulate old mechanisms and parts. Some things can be found in household landfills of old things. Unfortunately, such cemeteries surround any residential area. The wheels from a baby stroller are perfect, and the handle from it is also useful. Here's an example of a DIY lawn mower from a Soviet-era washing machine. They were then made of strong metal. The engines from these machines are perfectly suited in terms of parameters and power for use in a lawn mower.

A high-quality steel body will serve as a protective skirt and guide when throwing grass to the side. In addition to the motor, two pulleys and a belt are used to transmit rotation from the engine to the blade drive. The motor is fixed on the platform and connected to one phase.

A similar homemade mower works in the local area, as it is connected to the network with a power cord. You can use a special coil extension wire, selecting a cross-section that matches the engine power. Such a device is produced in a length of at least 40 meters and should provide mobility.

Using a chainsaw engine in a lawn mower does not require additional protection. It is already made in a dust and waterproof design. Air filters clog less often.

How to make a mobile lawn mower with your own hands? A tool made on the basis of a drill depends on the battery capacity and requires recharging from the network. In the absence of electricity, all that remains is to build a lawn mower based on an internal combustion engine. All small equipment that is fueled with gasoline or a combustible mixture can become a donor for a homemade lawn mowing machine.

Making your own trimmer from a drill

One of the easiest ways to make a trimmer is to use an old drill or cordless screwdriver. The second option is a little worse, since the battery will significantly limit the operating time. But you can increase autonomy by installing a 12-volt car battery into the design. However, given the large size of this battery, you will either have to take care of long wires, or make the entire device wheeled.

So, to make a trimmer from a drill, you will need a durable holder, a power tool itself and a homemade knife . The process includes several stages.

1. Making the holder. It can be wood or metal, but many recommend finding an aluminum pipe that is lightweight and yet highly durable. In addition, it can be easily drilled if the trimmer will not be disassembled in the future, and the drill will be firmly fixed.
2. Attachment to drill (or screwdriver) holder. This is done using metal brackets or clamps. Some home craftsmen claim that you can secure the instrument with ordinary tape, but there are several nuances here. First of all, it's not safe. Secondly, it is impossible to use tape to create the required angle between the holder and the working mechanism, which means using such an assembly will be extremely inconvenient.
3. Attachment to power cable holder. This is done with tape so that the wire does not hang and interfere with work.
4. Another important design point is the knife. It can be made from steel. For ease of use it should be thin. And if the trimmer is assembled using a battery-powered screwdriver, then the material should be chosen to be light - this will allow you to “squeeze” the maximum operating time out of the battery. Next, the selected metal strip, sharpened on both sides, is drilled in the middle and tightly fixed on both edges to the bolt, which in turn will be fixed in the drill chuck.
5. For safety during work, you should take care of the protective casing, which can be made of plastic. A great option is to use the top of a 19 liter plastic bottle.

Final Tips

Take care of your safety first. For this:

• remember once again the rules for handling electricity;
• do not work without protective covers with open rotating knives;
• do not trust strangers without proper training with your dangerous homemade products;
• When mowing, do not be distracted, but control the work area. Do not allow children, animals, or random visitors onto it.

A homemade lawn mower helps you experience all the advantages and disadvantages of electric grass mowing, the operating features of such devices, and the need to balance the center of mass. After gaining a little experience in using it, it is easier to choose a factory model that is professionally prepared for long-term use.

And now I recommend consolidating the material in your memory by watching Mikhail Mayorov’s video “Do-it-yourself electric trimmer.”

I remind you that now is the opportune time for you to share this article with your friends on social networks and ask questions in the comments.

Grinder trimmer

Another simple and convenient option is to make an electric garden trimmer from an angle grinder. In general, the assembly scheme is similar to the previous method, but with the difference that attaching the power tool to the holder is even easier. If you remove the included protective casing from the grinder, you can screw a U-shaped fastener, welded yourself, into this thread. You can secure it to the holder using bolts or welding, if you do not plan to disassemble the homemade trimmer in the future. Some craftsmen immediately weld a protective casing to the fastener.

On a note! The convenience of using a grinder as a basis for a trimmer is that the knife is attached to it very easily onto an existing mechanism. The cutting element itself can be made from an old circular saw blade. If this is not available, you can use fishing line or wire.

Knives

To make knives we need sheet steel approximately 4 mm thick. From it we cut out a circle with a radius of 19-20 cm. It can be either larger or smaller. It all depends on how powerful the engine is. But most often, a disk of such a radius is enough for a homemade lawn mower to work well. Now you need to make a small hole in the very middle of the circle in order to thread the edge of the shaft into it. Please note that it must be flush with the disk. It would be best to weld the shaft to the circle, as seen in the photo. Despite the fact that it will be impossible to remove this structure, it will not cause any particular inconvenience. If problems arise with the engine, it is best to disassemble the device from the casing side.

Making a manual mower from a vacuum cleaner

It is quite possible to make a trimmer from an old vacuum cleaner. In this case, the engine will have to be removed from the housing and, in this form, attached to the holder in one of two possible ways. The first option is described in the previous paragraph - fasteners are welded from metal according to the size of the motor. The protective casing can again be made from a plastic bottle.

But there is a second way to mount the motor. Due to the fact that the engine is larger and heavier, it is convenient to place it on a structure with wheels, for example, from an old stroller . As practice shows, holding a trimmer made from a vacuum cleaner suspended using muscle power is extremely tiring and inconvenient. In this case, a homemade head for attaching the knife is not needed. The motor in the vacuum cleaner is equipped with a fan, removing which frees up space for installing the cutting element. The latter is done by analogy with the description for a drill trimmer.

Attention! When making a lawnmower from a vacuum cleaner, you should not use wire as a knife. In reviews, many craftsmen write that high speeds developed by the engine lead to rapid wear (tearing off) and, accordingly, frequent line replacements. It is easier to immediately make a knife from a rectangular piece of metal.

Additional work

To make the front removable grille, steel wire and a soft strip (40x4 mm) are used. Experts include the following functions of this part:

• protection of the motor from damage (if the cutting element breaks);
• preventing the knife from slipping off the motor shaft;
• fixes the grass for quick and easy mowing.

Wiring diagram for the commutator motor of a washing machine.

The grille is made so that it can provide a gap from the knives of 1 cm in front and 2 cm at the bottom and top. The cutting element is cut from a steel strip (length 400 mm, dimensions 4x30 mm). The strip is welded to a pipe, the inner diameter of which must match the diameter of the motor shaft. 2 holes are cut in the pipe (for M6 bolts). The knife is then sharpened and balanced. To do this, you will need to hang the cutting element by the axis. Excess metal is removed.

Since the working knife has great inertia, vibration occurs when there is an imbalance. Significant inertia is required when a thick tree knot gets under the cutting element. If the knot diameter is 5-8 mm, then the lawn mower will work without problems.

To fix the knife on the motor shaft, use locknuts and lock washers. Due to the low power of the power unit, the cutting element will jam and the motor will stop. To protect the latter device, a thermal switch is provided.

Half-inch water pipe is used to make the lawn mower control handle. The shape and parameters depend on the operator’s build. The handle is attached to the frame with bolts. It has hooks for winding the cable.

During operation of the device, it is recommended to ensure that the cable does not get caught under the cutting element. Otherwise, the operator will be shocked. To protect the user from such a situation, it is recommended to install rubber tips on the handle (additional electrical panel).

Chainsaw-based lawnmower

A chainsaw is a popular tool. A huge number of removable units were created for it - from a cultivator attachment to a drill. There are other options for using it. One of them could be a trimmer, or more precisely, a lawn mower on wheels, since the heavy weight will not allow you to hold such an assembly in your hands.

Cart

Based on the size of the tool, a trolley is made. It may look like a metal frame with wheels at the corners and a handle for moving it. The most convenient number of wheels, according to experts, is 4. This improves maneuverability. A chainsaw is mounted inside with the steering wheel and tire removed so that the shaft is facing down. A steering wheel is attached to the handle of the future trimmer and the cable is extended to make it possible to start the device without bending over.

Mowing mechanism

The greatest difficulty in making a lawnmower from a chainsaw lies in the mowing mechanism. To make it, you will need to weld a special nozzle. To do this, you need to take two metal pipes 40 cm long and 50 and 58 mm in diameter. A tube of smaller diameter is welded to the engine sprocket. After this, it is inserted inside a larger diameter pipe and secured with bolts and locknuts. This is done so that it is possible to adjust the height of the knives. If this option is not required, you can get by with one pipe.

A knife is welded to the second part of the pipe. Due to the high performance of the engine, it is possible to make a cutting disc from metal with a thickness of 4 mm and a diameter of up to 180 mm. Knives 120 mm long and 30 mm wide are bolted to the disk. An excellent material for making them is an old two-handed hacksaw. Such a cutting unit is suitable for tall and thick grass - the engine power is enough to cope with it, and the knives will not quickly become dull and become unusable.

Reinforced dual blade design

To increase the width of the treated area in one pass, you can make a design with two knives . In this case, a pulley or sprocket is attached to the crankshaft. Using a backpack belt or bicycle chain, torque is transmitted to the knife shaft. In this case, the cutting parts are spread from the front to the sides. And in this case the frame is made so that the cutting elements do not reach the front wheels. They are attached using bearings and also have a pulley or sprocket.

The sprocket and pulley are selected in such a way that the knives rotate at a speed of 500 rpm - this ensures an even cut. It is optimal to sharpen the knife at a sharpening angle of 60 degrees, otherwise it will need to be sharpened again often. The length of the knives is selected based on the width of the supporting structure, so that when rotating there is a minimum gap between them. The part opposite the tip is bent at a slight angle, which makes it a kind of blade. This provides airflow - the grass will not stick. The knife should not be tightly secured so that when stones hit it, it changes its position, since it is easier to return it to its place than to repair the engine or shaft.

Advice! To properly assemble a mower from a chainsaw, it is recommended to watch thematic videos, since the design here is more complex than that of previous models.

Process of creation

The initial stage of creating a lawn mower yourself is to select parts

The most important thing is the presence of an engine. It can be taken from household appliances that are no longer in use, or it can be removed from some power tool:

• drills,
• vacuum cleaner,
• chainsaws,
• Bulgarians.

The minimum required motor parameter is 500 V. Better than 1000 V. This way you can work at low speeds. And sharpening knives will become a less common task. The selection of the engine is influenced by the diameter of the knife and the overall dimensions of the equipment. The larger the working area for it, the higher the engine power should be.

For the frame you need a piece of metal or plywood with a thickness of 8 mm. Here you will need to create a protective metal casing. This will reduce the likelihood of your lawn mower breaking down.

The necessary tools are here:

• welding equipment;
• hacksaw (metal type).

1. First, the frame for the motor is prepared. Although plywood is suitable, it is better to take a sheet of metal at least 3 mm thick. It is more resistant to deformation. The size of the frame is determined by the length of the knife and the width of the lawn mower (this parameter is usually no more than 60 cm). A square is cut from this sheet with a side similar to the width of this unit. Holes for the motor are created in the center of the square. The flange motor must be attached to the frame with the shaft facing down. If the engine has ears, another mount is welded to the frame.
2. To make the simplest casing, a metal tin can is used. It is better to make the casing high, so it will also protect the electrics of the lawn mower. It needs to be put on the motor shaft. Then put on a knife (carefully sharpened). The entire mechanism is connected with a bolt. Wheels are attached to the frame. For them, it is necessary to weld corners with holes to it. The diameter of the wheels should allow the knife to pass freely 5-7 cm above the ground. If it goes lower, it will remain in the ground. If it is higher, it will crush the grass rather than cut it.

Frame example (photo):

1. The handle needs to be adjusted to suit the height of the main user of the future lawn mower. Its optimal length is about 90 cm.

Advice! You can protect yourself from cut grass by attaching a mesh over the lawn mower.

The most primitive homemade lawn mower

Made practically from scrap metal.

First of all, it is necessary to determine which tool will effectively replace a conventional hand scythe when caring for the area. It is possible that dense planting, dense bushes and flower beds will not provide access to the area to be mowed, and then the “whirlwinds” of grass will need to be removed manually. You need to assemble a lawn mower with your own hands to mow an area larger than 4 acres.

Choosing a method for driving the cutters is the basis for collecting the necessary components. Knives can be driven:

• due to manual action, pushing the mechanism forward, which requires great physical strength;
• using electrical energy of single-phase or three-phase current;
• battery driven motor;
• using an internal combustion engine, two or four stroke.

Having decided on the energy component, you will need to choose wheels, a handle, and a platform for assembling the lawn mower with your own hands. Assemble the necessary fasteners and components of the connection, protection and connection circuit.

The electric lawn mower consists of:

1. The frame on which all functional elements are installed;
2. An engine that ensures rotation of the working part of the mower;
3. Knives for mowing grass;
4. A casing that protects the operator’s feet;
5. Wheels that allow you to move the lawn mower around the area while working;
6. Control knob, which gives control over the device;
7. Fragments of the power system, which include an RCD (residual current device) and a cord with a plug.

The electric lawn mower consists of unnecessary parts that are stored in the garage or shed.

Making an electric scythe from a washing machine with your own hands

You can also make an electric scythe using the motor from a washing machine. It is asynchronous and is activated via a button. The winder can be made from a return button, for example, from measuring instruments. The fairly compact dimensions of the motor make it possible not to make a large cart, as in the previous version.

On a note! The convenience of using such an engine lies in the fact that it already has a pulley, and replacing the piston pulley with a more convenient one is not necessary. The belt and second pulley are located right there - in the washing machine.

Knives are made by analogy with the descriptions above. But there is one important point - in order to prepare the motor from a washing machine to work as a trimmer, you should not forget to make a protective casing for it. It will protect the drive from the grass. But at the same time, it is necessary to take care of protection from overheating, that is, the casing should be larger in size and have holes for ventilation. An old bucket or large plastic bottle will do for this purpose. Don’t forget to take breaks - such a motor is not designed for long-term operation .

Materials and tools

The device is assembled from the following components:

1. Electric motor. A more powerful unit is required, so it is advisable to get an old Soviet-made vacuum cleaner. For example, the “Buran” or “Raketa” brands, equipped with electric motors with a power of 300 W or more.
2. Textolite. A plate of this material is used as a supporting base for installing a motor with a knife and wheels. Size - approximately 260x180 mm, thickness - 10 mm. The choice in favor of PCB is explained by its dielectric properties - its use reduces the likelihood of electric shock. In the absence of textolite, use a steel sheet 3–4 mm thick, or even better, a large frying pan, bowl or the bottom of a saucepan or boiler. This base has sides on the bottom that prevent cut grass from flying in all directions.
3. Wheels. Wheels from a wheelbarrow, warehouse cart or baby stroller are used. If the stroller is assembled, you can borrow the entire chassis - then all that remains is to attach the supporting base with the engine to it.
4. U-shaped handle. The stroller chassis is already equipped with a handle; in other cases, it can be made from a plastic pipe, thin-walled metal tube or wooden slats. On the metal handle in the place where the user grabs it, you need to attach a rubber pad, for example, from a watering hose, which, due to its dielectric properties, will reduce the likelihood of electric shock.
5. Power button. It is recommended to use a self-resetting button, that is, one that, in the absence of effort on the part of the user, automatically switches to the “off” position. With it, the lawn mower will be as safe as possible: if the user stumbles, falls, or in some other emergency situation, the device will immediately turn off and the blade will stop.
6. Plastic bottle or tin sheet 1 mm thick. These materials will be needed to make casings that protect the engine and electronic components from dust and pieces of grass.
7. Steel corner. When using a metal supporting base, a frame for the engine is made from a corner.

You will also need a wire with a plug. This is what is required of him:

• flexibility: wires with copper conductors have it;
• presence of a 3rd wire for grounding;
• length that allows you to reach the far corner of the lawn.

Wheels or chassis are selected taking into account two factors:

1. Diameter: the larger it is, the less effort it will take to move the lawn mower. But at the same time, you need to design the device so that the knife is located 5–6 cm from the ground. At this height, the cut is smooth and the lawn looks neat.
2. Number of wheels.

Usually two options are considered:

• two wheels: with this design, the mower is easy to maneuver, so that narrow and difficult-to-pass areas become accessible. But it is difficult to keep the knife horizontal all the time.
• three wheels: a less maneuverable option, but stable: the knife is always positioned horizontally. The third wheel is installed at the rear. It is convenient if it rotates around a vertical axis.

A 4-wheeled ready-made chassis is also suitable, but it is irrational to specifically install 4 wheels on a load-bearing base, since this option has no advantages over a 3-wheeled one.

If there are no ready-made wheels, they are cut out of plastic or wood with a jigsaw.

The tools you need to prepare are:

• welding inverter with electrodes;
• grinder with discs for cutting metal;
• drill with a set of metal drills;
• jigsaw (if there are no ready-made wheels);
• soldering iron;
• screwdrivers and wrenches;
• pliers;
• hammer;
• core, scriber;
• tape measure, ruler;

For marking work, chalk or a marker is useful.

Is grass cutting a problem?

During the summer season, it is important not only to fence garden plots, but also to keep them in a beautiful, clean condition. Craftsmen make various types of trimmers. Among which are:

• Petrol trimmers;
• Electric trimmers.

A powered power tool is the easiest way to quickly cut grass. A personal plot of 6 acres or more can be processed in a matter of minutes.

Main components of a garden shredder

To independently assemble a grass and branch chopper (shredder) at home, you must first understand the structure of the mechanism, as well as the principle of its operation. This will help you assemble the equipment correctly and, if necessary, make changes to its design.

A homemade unit, designed for grinding mown grass and sawn branches up to several centimeters thick, has the following main structural components:

• engine;
• knives mounted on the working shaft;
• frame (usually metal);
• protective casing;
• a box designed to receive cut vegetation;
• starting system.

The equipment itself can be made stationary or mobile. To create the latter option, you will additionally need wheels, as well as a handle. To make the frame, use metal corners or ready-made frames from workbenches. Boxes for processed vegetation are made from plastic buckets, tin, and bags. The protective casing around the knives should be thick and durable enough so as not to quickly wear out from the impact of grinding vegetation.

READ What is a Good Grass Trimmer

When processing plant debris, crushed pieces may fly out of the opening through which it is fed. Therefore, the neck is covered with a lid or simply with a cloth, for example, a bag.

The operation of the chopper is that rotation from the motor shaft is transmitted directly to the knives or through a chain/belt drive. The vegetation chopped by the blades enters the box. In this case, the final product is immediately ready for use.

According to the principle of operation, some homemade shredders are comparable to a meat grinder (they draw in and then grind organic matter), while others are comparable to a coffee grinder.

Electric car

The idea of ​​modernizing a children's vehicle - a pedal car - can also be brought to life. The result should be a real electric car. True, the implementation of this idea will require some plumbing skills.

To implement the idea, you will need to prepare the following spare parts.

• A steel profile pipe for making a frame, which can be easily made independently.
• Wheels with rubber tires. The best way to do this is to disassemble the old garden cart.
• For the body, you will either need the body of a children's car with a pedal drive, or you will have to make it yourself from scrap materials (plastic or metal-plastic water pipes will do).
• The electric drives should be units from two disassembled screwdrivers: motors and gearboxes will be used from them. They are placed in specially made casings.
• A bearing is installed to support the output shaft.
• A car model is recommended as a battery.

A screwdriver can also help with such improvements to a children's vehicle, such as making a small snowmobile from an electric car.

They use a newly built electric car for this purpose, only slightly modernizing it.

• The frame will be improved to install a drive wheel, which will be the main engine of the device.
• Skis are installed instead of wheels, and the wheels are replaced with a metal handlebar from a children's bicycle.
• The chain transmission will perform the drive functions.
• Such modernization will save both time and money, and the children’s joy will be genuine.

In addition, the process can be recorded using drawings, and the reverse transformation into an electric car will be more than possible with the onset of the warm season.

Sources:

https://vdartebe.ru/svoimi-rukami/kak-sdelat-trimmer-dlya-travy-svoimi-rukami.html https://tehnika.expert/dlya-sada/prochaya-sadovaya-texnika/sadovyj-izmelchitel-svoimi -rukami.html https://altenergiya.ru/poleznye-stati/chto-mozhno-sdelat-iz-starogo-shurupoverta-svoimi-rukami-iz-akkumulyatora-motorchika-dvigatelya.html

Principles of operation of an electric motor

Such a motor can be either single-phase, which operates from a regular network, or three-phase, which requires additional electricity. When connecting an electric motor, you must always remember personal safety. For a motor operating on one phase, RCD protection must be installed, and a three-phase motor must have appropriate capacitors.

For a home lawn mower, you can also use a drill with speeds of up to three thousand. When assembling the structure, it is necessary to correctly select the power of the mower for its swathing. A cordless or electric drill mounted on a base or platform will perform its tasks efficiently, and the grass will be mowed.

During operation, you should not forget about operating intervals, since you need to give the motor time to rest in order to avoid overheating. This tool will easily clear the area of ​​grass and give the lawn an attractive look. The platform on which the engine is installed must be of optimal size so that you can mow the grass near the wall.

Types of cutting attachments used

Homemade products, like factory units, are equipped with cutting attachments of various types:

• milling-turbine (universal).

The first type is flat blades. When they rotate, they grind plant debris. If you have to process branches, then such blades quickly become dull. Milling knives are a cutting shaft in the form of gears from circular saws. They grind dry waste from branches and grass well, and clog the cutters with wet waste. Milling-turbine cutting attachments can cope with thick and undried branches, but making them yourself is difficult.

At home, knives from lawn mowers or made from wood saws are often used.

It should be taken into account that the degree of processing of plant waste directly depends on the installed cutting attachments. The output is pieces of branches from 10 cm long or shavings or dust.

Preparatory activities

A grass cutter from a brush cutter is manufactured in a number of stages. Initially, they are prepared in a container where the grass and branches will be ground:

• make markings on the bottom (along the perimeter) for four trapezoidal holes with rounded corners;
• drill holes with a cross section of 1 cm in each drawn segment;
• a jigsaw file is inserted into them and trapezoids are cut out;
• process the cuts with a file or sandpaper;
• a hole is drilled in the center of the bottom for the chopper shaft;
• a circle is cut out of steel mesh with dimensions according to the diameter of the bottom;
• using small scraps of boards or blocks, the prepared mesh fragment is secured to the container from below;
• Legs for the container are made from metal tubes, attaching them to the tank with bolts.

The wooden pieces are fixed with self-tapping screws, twisting them from the inside of the tank into metal jumpers between the cut trapezoids. In this way, the mesh is securely attached to the bottom of the container.

• bend the tubes in a vice or using a pipe bender in the shape of the letter “P”;
• the ends of future supports are flattened with a hammer;
• 2 holes are drilled into them on each side (6.5 or 8.5 mm cross-section);
• fit the workpieces to the bottom of the container and mark the points of bolted connections;
• drill according to the hole mark;
• using bolts with washers and nuts, attach to the footrest casing.

After preparing the casing, in order to reduce the dimensions of the created mechanism, the following operations are performed:

• disassemble the trimmer , disconnecting the motor, rod and cutting attachment from each other;
• cut off a fragment approximately 20-40 centimeters long from the rod with the cable;
• collect the lawn mower;
• check the performance of the equipment.