Homemade herb grinder ☘ from a washing machine and simple instructions for craftsmen

How to make your own herb grinders

Grinding weeds is a labor-intensive process, which can be greatly simplified by making a device. The basis of the unit is a bucket, a washing machine, and power tools.

From the bucket

The bucket is bolted to the tabletop. To fix the motor and output the shaft where the knife is installed, holes are drilled in the bottom. A hole is made in the side of the container and covered with metal plates. This is the outlet for chopped grass.

When connecting the motor to a 220 V power source, the knives will rotate quickly, so it is recommended to connect to 40 V. The power source is a car battery.

From a vacuum cleaner

The design is complex, so you can’t do it without tools. The device is made from Typhoon vacuum cleaners. The electrical device is easy to use. The design of the vacuum cleaner allows for the release of chopped greenery without turning off the power.

If there is no Typhoon, install a motor of 180 W. Hacksaw blades are used as blades. A sleeve for mounting blades 4 cm long is cut into the wall of the housing.

Holes are made in the housing for the platform where the finished unit is installed. The engine is mounted at the bottom of the structure. The knives are screwed on with nuts.

From the washing machine

The unit is identical to that made from a vacuum cleaner. Initially, the washing machine tank is cut off. The height of the container in which the raw materials are placed should be up to 60 centimeters. The top hole of the tank will require a cover or rubber casing. Otherwise, the grass will fly in different directions.

A metal corner 50 cm long will be required to install the legs. Holes for bolts are made in it. Knives are attached to the axle. They can be installed in several rows. They are fixed with bolts or self-tapping screws.

Several holes are drilled on the sleeve. Their diameter must be at least 7 mm. Connect the bushing to the engine with bolts. To install the engine, the housing is turned over and several studs are prepared. Several holes must be made in the housing (depending on the number of clamps). The blades are put on the sleeve, being sure to fix it. This can be done with ordinary nuts.

The blades should not touch the inside of the container or become loose.

The power cable is connected to the motor contacts. In this case, it is necessary to ensure that the color of the insulation of the conductors matches. The connection is covered with insulating tape or silicone tube.

A hole is cut in the container to throw out the chopped greens. The outlet is located 20 mm below the level of the knives. Finally, the device is installed on a stand, and the legs are attached to the metal axis.

To use this unit, grounding is required.

From the Bulgarian

Take an angle grinder with any power rating.

First, they assemble the platform from the box. To make it I use wood or metal. A cutout in the form of an arch is made in one of the sides of the structure.
A hole is cut into the bottom of the box. It should be 50-70 mm larger than the working part of the power tool.
The grinder is attached from the inside of the box. In this case, the blades are located above the bottom. For fixation, it is recommended to use flexible clamps or clamps.
The bottom of a metal bucket is cut out. Install it above the knives. Fix the bucket with brackets and metal corners, securing it with hardware, such as bolts and nuts.

How it works: put weeds in a container and turn on the grinder. Rotating knives chop the weeds, which, after chopping, fall into the box. Remove the crushed feed with a shovel.

From a drill

They create a grass cutter based on a steel body or a hopper. The design is complemented by a protective cover, knives, shaft, stool, bearings with a housing.

A hole is drilled in the stool. Its diameter should be 12 cm. From the inside of the stool, fix the body, and then the bearings.
Holes are drilled in an old bucket (12 cm in diameter). It is placed on a stool and screwed with hardware.
P18 steel is used to create a diamond-shaped blade. It cuts fresh grass better. It is recommended to sharpen the edge at an angle.
The blades are secured to a shaft inserted into a bearing.
At the bottom of the stool, a drill is connected, which is connected to the shaft shank using a clamping chuck.

The grass is placed in a bucket and then the drill is turned on. After grinding the raw materials, the tool is removed.

Which motor should I get?

It is more convenient to work with old washing machines - Oka and Fairy are ideal. Top-loading barrel-shaped models with a bottom-mounted motor are easy to transport.

Expert opinion

Vladislav Ponomarev

Design engineer, inventor

A suitable motor has the following characteristics - power 180 W, engine speed 1350-1420 rpm.

Fairy models have a centrifuge, so the motor makes more revolutions, up to 2850 per minute, but the power is lower. The body is plastic and fragile. From Fairy models they take only the engine, the tank is made from an empty iron barrel, and knives are purchased additionally.

How to make a barrel sauna with your own hands, detailed instructions and drawings

The advantages of having a unit are obvious - the ability to process any volume of grass in a short time. A grass cutter is needed not only by gardeners, but also by owners of subsidiary farms - ground green raw materials are added to food for livestock and poultry.

Tips for making a grass cutter

The magazine “Constructor” very often publishes tips on making various types of grass cutters, feed cutters and straw cutters. Along with the tips, drawings and assembly diagrams of various parts and components are also published.

But to make your own grass cutter made from any materials more functional, you can do the following:

Sharpen only one side of the knives if you plan to chop plant branches,
If you plan to use the grass cutter as a feed crusher, the blades need to be sharpened on both sides.
To chop only herbs, use only diamond-shaped knives,
Replace conventional fastenings with metal frames - this will increase the strength of the device,
Cover the outside of the grass cutter with a sheet of metal. This will not only reduce the risk of injury, but will also protect the device from dust getting inside.

Garden herb grinder

The homemade grass shredder you create depends on how much grass will need to be processed (disposal of garden waste, for compost, for livestock feed). Basically, it is not much different from a meat grinder, only for grass and hay and straw, in any case, the operating principle is the same.

Types of herb grinders:

different in power, depending on how much grass needs to be processed. With great power they can even handle small knots;
different types of knives - disc knives (blades that crush garden waste when rotating), milling knives (gears that, when rotating, tighten the material and automatically grind it);
different types of operation - on gasoline (maintenance is more expensive) or electricity (the device is tied to an existing outlet);
stationary type or mobile (lawn mower type).

From the washing machine

In itself, it is an excellent volumetric container for hay, grass, straw, etc. The principle of this chopper is similar to a food processor.

Necessary:

several knives placed in a cylindrical container;
an additional container for the upper part of the unit, into which hay, grass, and straw will be supplied;
an additional hole in the side so that there is a place for recycled material to flow from;
receiver of finished products (bucket, box, etc.).

From a vacuum cleaner

All you need is the vacuum cleaner body and its motor.

You will need:

the engine power can be equal to 180 W, this is enough;
fasten knives from unnecessary hacksaws with nuts to a threaded sleeve (approximate length - 40 mm). Secure at the bottom of the container and bolt above the knives;
try to make a hole for chopped grass under the legs or in the side;
To protect the electric motor, the base must be stable.

From the Bulgarian

The principle of creating a homemade grass grinder from a grinder, as in previous units:

select a container;
drill a hole in the bottom to install the cutting unit;
make a metal base and attach an angle grinder to it, carefully securing it with clamps.

Ways to create homemade shredders

If you have a strong desire, if you have basic building materials and skills, you can create a structure from scrap materials with your own hands. As a result, you will receive a device that will best meet all your requirements and the characteristics of your site.

Drill based

The easiest way to create a herb chopper is to use a simple type of drill. Suitable for small volume grinding of grass (mainly used for grinding bird and pet food).

The process of chopping excess grass and branches will be similar to the function of a food processor. So, in a cylindrical body, that is, in a simple bucket, the sharpest knife is located. During its rotation, the main process of cutting grass and small branches occurs.

In this case, special attention should be paid to the sharpening process. If done correctly and efficiently, the blade will very quickly cut through the branches and turn them into future compost.

It is worth using the one-sided type of sharpening. If you want to process only grass, then the optimal type of knife will be a diamond.

You will need:

Knives.
Bolts and nuts.
Drill with a total power of about 1 kW.
Special containers for grass (bucket).

Assembly will be quite simple; one task will be sharpening the knives. They must have a diamond shape with a one-sided type of sharpening, which will be directed downwards. This shape will help you protect the knife from the process of excess grass accumulating and wrapping on its surface. After completing the assembly, you should place the grass in a bucket, then connect the device to the power supply and grind all the necessary grass and vegetation.

Based on a vacuum cleaner

Another method will involve the process of creating a shredder based on the Typhoon vacuum cleaner. Such a device will be considered the most powerful and attractive in appearance. Here two openings will be included at once: a special supply of raw materials will occur through the upper one, and ready-made compost will come out through the lower one.

To create such a device, you need to take a body from a vacuum cleaner or a simple piece of pipe, a 180-watt motor, which can be taken from any unnecessary washing machine, a hacksaw blade, a rectangular profile and a specialized bushing. Build process:

The engine should be completely secured to the bottom of the resulting housing.
You need to create two holes on the sleeve in advance, which will help install such a shaft.
You should make 4 knives at once from a hacksaw blade, make several holes in the cut-out installations, and sharpen the edges using a special sharpener.
The body and the chopper are connected using special bolts, at this time it is worth making sure that the platforms are stable, and the side edges of such a device are completely covered with sheet metal.

Cultivator based

Materials that will be useful for assembly:

A cultivator that can be used as a drive.
A steel knife that can be cut from canvas and sharpened.
Self-tapping screws.
A plastic container in which the grinding process will take place.
Legs and square table top.

To assemble the structure of a garden shredder, you should attach the drive to a simple table, having first made a hole in the tabletop itself. Then, using self-tapping screws and additional brackets, tighten the machine casing to the wooden block. For the socket, you should create an additional funnel from available materials (for example, a sleeve from a drain) and secure it in such a way that it does not interfere with the installation of the cultivator. The block itself can be secured to the table with self-tapping screws. Ultimately, it is worth installing special stops using legs to prevent the tabletop from sliding.

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.

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.

Varieties of engines for assembling homemade products

Electric and gasoline engines removed from unused equipment are used as a drive for homemade products. Each of these two options has its own advantages and disadvantages. Models with an internal combustion engine are more convenient in that their operation does not require a nearby power supply. But in general, they are more expensive and have a more complex design than their counterparts equipped with an electric motor. Therefore, it is easier to make electrical equipment, and also more compact.

The maximum thickness of cut branches that a branch chipper can grind depends on the power of the electric motor installed on it and the characteristics of the knives.

Models with a motor up to 1.5 kW are capable of grinding sticks up to 20 mm in diameter. They are designed for low intensity work.
If an electric motor of 3 to 4 kW is installed, then such units can chop branches up to 40 mm thick.
More powerful electric motors (over 4 kW) are used to make a shredder for wood with a diameter of 7-15 cm.

The drive of the last category is equipped with equipment if it is necessary to constantly perform large volumes of work associated with the processing of waste of various thicknesses.

To create a homemade shredder, you can use electric motors from an angle grinder, washing machine, or trimmer. They must be adapted to work from a stationary network with a voltage of 220 V. In order to grind material as thick as possible at home, it is recommended to equip the shredder with an electric motor of 1500 rpm with a power of about 3.5 kW. This parameter for internal combustion engines corresponds to 5-6 horsepower.

Motor from an old washing machine

What is silo used for?

Many gardeners living outside the city grow not only vegetables and fruits in their dachas, but also keep chickens, pheasants, quails, rabbits and various domestic animals. Chopped grass silage can become an excellent food for pets; you just need to make sure that your farm has an appropriate chopper that can easily grind grass and hay.

Experienced gardeners use such ground grass as mulch and first-class organic fertilizer. You only need to ensure that the grass is chopped as finely as possible, as a result of which the layer of mulch will be dense, which is necessary to retain moisture and heat in the ground.

With the help of such universal equipment, you can easily grind cereals, vegetables and fruits, which allows you to make high-quality feed for livestock, eliminating the need to purchase expensive feed.

What else can a chopper be made from?

There are many different options for creating garden shredders with your own hands: from the simplest ones, which only allow you to grind grass, to more structurally complex, powerful units designed for wood up to 10 cm thick. Accordingly, the practical implementation of the plan will require different details, different amounts of time and money.

To assemble equipment for processing plant waste, in addition to the considered options for old or unnecessary tools or equipment, you can use the following devices:

drill or hammer drill;
an old working vacuum cleaner;
unnecessary electric saw;
motor from the pump;
gasoline or electric walk-behind tractor;
any electric motor of suitable power.

A drill with a hammer drill, if you use them to chop grass, you don’t need to redo it at all. It is enough to make only a nozzle with blades. The created device will work like a blender, grinding soft plant stems into a container in small portions.

Types of wood chippers

Shredders and crushers come in several types. Their classification is based on the type of material they can process and shred.

For example, they can work with:

Stones;
Plastic;
Metals;
Wood;
Garbage.

They are also divided into large-sized (30 cm), medium (10 cm) and small crushing (2 cm).

What else can a chopper be made from?

To assemble equipment for processing plant waste, in addition to the considered options for old or unnecessary tools or equipment, you can use the following devices:

drill or hammer drill;
an old working vacuum cleaner;
unnecessary electric saw;
motor from the pump;
gasoline or electric walk-behind tractor;
any electric motor of suitable power.

Types of cutting attachments used

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

disc (with three blades);

milling;

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.

Design and principle of operation of a grass chopper

To dispose of grass and thin twigs from a small area, gardeners usually use a cutting tool. But manual labor is not effective for processing large quantities of green waste. An unnecessary or non-working washing machine will do well as the basis for a common model of a homemade shredder. It will work on the principle of a food processor. Key nodes:

shaft with radially fixed knives;
engine;
receiving tank;
container for collecting processed mass;
frame.

The shredder model involves using a metal tank from a Soviet-style washing machine as a receiving container. For example, from Oka or Fairy. The grass will be loaded into this container and ground in it with a knife. The body of a Typhoon vacuum cleaner can also become a tank.

Homemade shredder

Tools and consumables for the chopper:

a circular knife or hacksaw to cut blades out of it;
wire with plug;
metal corner;
connecting parts;
drill;
Bulgarian;
welding machine;
locksmith kit.

Advice. A circular blade is the best option for a homemade shredder. Other designs must be tested in practice as they may not cope with thatch or thin branches.

Operating principle of a wood chipper

Of course, I would like to know what the operating principle of a homemade device is, how it functions, what sets it in motion and causes it to crush its contents.

In fact, everything is much simpler than it might seem at first glance: the chopper works on the principle of a regular meat grinder.

After the material gets inside, it moves to the part of the device where the cutters and cutters are located. And already there it is crushed.

The power rating influences how much raw material a crusher can process in one go. The main thing is that this figure does not exceed 2600 W.

Operating principle of the device

The design of the grass and extra branches shredder itself is quite simple. This will include several basic elements:

Protective cover.
A special working shaft, which is equipped with additional knives.
Engine.
Reception box.
Pulley with additional belt.
Metal frame.

To make it quite simple and comfortable to move such a device around the entire site, it should be placed on a specialized two-wheeled base. The operating principle of the device is considered quite simple. So, the shaft, with the help of a special motor and an additional belt or chains, begins the process of rotation. At this time, branches and excess grass enter the box, which are quickly chopped using sharp and small knives. In general, this resembles the operation of a simple meat grinder.

Such grass cutters are often used by summer residents themselves. In addition to all this, you can find industrial devices on sale that can easily cope with very thick branches. Of course, such devices are distinguished by a particularly complex design and increased productivity.

Device Features

A wood chipper is a very convenient tool. However, not everyone can afford such a purchase, so most gardeners prefer homemade solutions. But is it possible to create a device without the appropriate plumbing and welding skills and tools? Unfortunately no. Even a simple branch chopper based on circular saws is created by following strict instructions. In addition, to create shafts and bearing housings, you need to turn to professional craftsmen. The whole process can be divided into the following stages:

Finding a suitable shredder design.
Selecting a power plant and calculating the final drive.
Selection of metal components and parts that need to be turned using a lathe.
Frame installation.
Installation of drive, cutting parts and belt drive.
Installation of the protective casing and hopper.

When creating, you should be guided by the following rules:

If the priority is to obtain small wood chips with minimal resources, give preference to models made from circular saws.
If you are going to chop small diameter branches into a larger fraction, a cutting mechanism such as a jointer is the ideal solution.
If you want to chop branches in large quantities, equip disk crushers.

If you have decided on the choice of wood chipping machine, start preparing parts, materials and equipment. However, before that, there are a few key tasks you need to complete.

Materials

Used to assemble a garden unit:

sheet steel from 0.8 to 2.5 mm for housing and receiving hopper
steel angles, channels
fastening elements
engines from old machines
belts, pulleys
knives, circular discs
Welding machine, grinder, electric drill, hacksaw, pliers, screwdrivers
Hammer, wrenches
Ruler or tape measure, marker

Step-by-step instructions and nuances of work

1.Select your own version of the mechanism

2. A diagram is drawn to fully represent the dimensions of the unit and its parts

3. The engine is selected: electric or diesel

4. All components are manufactured

5. The frame is assembled

6. The cutting part is installed in the main body, the choice depends on the thickness of the branches and the volume of work

7.Protects the motor and belt drive

8. The engine is connected, the operation of all elements is checked

If you have experience using a welding machine, grinder and drill, then the work itself will not create any special difficulties

A do-it-yourself branch crusher is easily created according to drawings from the remains of agricultural equipment, unclaimed sheets of iron and parts from old machines and machines.

The cost of the created device will be much cheaper than a new one

You can assemble and disassemble the mechanism, remake it if you don’t like it, improve it, add a strong engine, etc.

Choosing an engine and belt drive - what is important to know about it

The efficiency of chopping branches depends on the rotation speed of the electric motor shaft. To ensure reliable crushing of wood, it is necessary to ensure that the cutting disc rotates at a speed of at least 1500 rpm. However, it is still necessary to take into account such an indicator as the amount of torque. This value is closely related to power, and the greater the value of the latter, the higher the force parameter.

How to achieve the required rotation speed of the crusher cutting disk if the electric motor reaches a speed of 2800 rpm? For this, a belt drive with pulleys of different diameters is used. To reduce the rotation speed of the electric motor shaft by 2 times, you need to install a pulley on the drive shaft with a diameter 2 times smaller than the size of the pulley on the driven shaft.

An important point in the design of a homemade shredder is the choice of transmission mechanism. The safest type of gearbox is a belt drive. Its advantage is that if the workpiece jams, the belt will slip along the pulley, eliminating the occurrence of negative consequences. This type of transmission mechanism is considered not only safer, but also reduces the likelihood of engine failure due to overheating and shaft jamming.

This is interesting! To reduce the rotation speed of the shredder cutting discs, you need to install a pulley with a diameter of 100 mm on the motor shaft, and a disk with a diameter of 200 mm on the shaft of the shredder.

How to make a grass grinder from a grinder with your own hands

To make your own grass chopper from an angle grinder, you will need a pipe with a diameter of 15 cm for removing the mulch, a metal profile 2 * 5 cm for the frame and a container with a capacity of 20 liters.

Manufacturing procedure:

Prepare the container. On one side at the bottom, a hole with a diameter of 15 cm is made so that it is possible to install an outlet for mulch. At a distance of 5 cm from the hole, a piece of 2*2 cm corner is attached. The length of the part is equal to the radius of the container. This is a grass limiter. He will not allow the finished mulch to remain in the bucket and will push it towards the exit. Knives are made from a circular saw blade. On one side they are rounded and sharpened.
The working knives are raised so that they do not fall in front of the limiter. A lid with a hole inside with a diameter of 15 cm is installed on top. This part will allow you to hold the grass, it will not jump out of the container under the influence of the engine.
A frame is welded from a metal profile 2*5 cm. The height is selected from personal preference, but not lower than 30 cm. The frame resembles a stool. On one side, a base for installing an angle grinder is attached to the legs. It is made of sheet steel 3 mm thick. Using self-tapping screws, secure the angle grinder to the base in a horizontal position, with the sleeve facing up.

For ease of use, the shredder is placed near the compost heap. The outlet casing is inserted into the opening of the composter and the production of mulch begins. The grinder is connected to electricity. Turn on the maximum operating mode and begin to pour grass, tops and branches into the receiving container.

To make the herb chopper last longer, the body is sealed with sheet iron over the container and painted.

Attention! To avoid injury, the receiver is made higher than the length of a person's arm. This way, when loading grass, there is no risk of accidentally hitting the knives and injuring yourself.

Drawing up a drawing

In order to avoid having to redo a partially assembled garden apparatus, it is necessary to correctly draw up a drawing, taking into account the size and shape of all available parts.

Numerous forums will help with this, where users discuss the most successful configurations and technical solutions.

In addition, they also share their experience of independently manufacturing garden waste and garbage shredders, posting not only drawings, but also photos and videos of their devices, and also leave feedback on their work.

When drawing up a diagram, you will be able to determine the location of mounting holes and welds. This will allow you to first make individual parts with pre-drilled holes, and then attach the corresponding units to them without adjustment.

Ready-made drawings can be found on the Internet, after which, based on them, you can make a new drawing with dimensions, which will take into account the features of the available parts and mechanisms.

The main advantage of this method is that it eliminates the need to independently determine and calculate the overall configuration of the finished device and the location of the main elements.

Here are drawings of some devices that can be used as basic ones:

Drawing 1 - This is a standard design for a stationary rotary chipper that works well as a garden chipper.
Drawing 2 - This is the design of one of the shafts of a two-roll shredder. With some modifications it can also be used in single shaft shredders.
Drawing 3 – Design of a two-roll shredder.
Drawing 4 – Drawing of a grass chopper with an electric motor, however, instead of an electric motor, you can install an angle grinder or a drill.

Main components of a garden shredder

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.

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.

Advantages of homemade shredders

Industrially manufactured grass cutters are universal devices that allow you to chop grass, branches, vegetables, root vegetables, grind various grains into flour, and even chop firewood. The only drawback of such units is their rather high cost, which is beyond the means of most gardeners. But by making a garden (electric) shredder from simple components with your own hands, you can automate the production of silage and at the same time significantly save on the purchase of expensive factory units.

Today, there are many different types and designs of such shredder devices, which will allow you to select the functionality of a specific model for the work performed in the garden. For example, you can make an electric garden herb chopper with your own hands, which will both process grass and grind grain. If desired, you can create a fairly simple model of equipment that can only cut grass and work with root crops.

These homemade vegetable cutters are made from scrap elements, so the cost of such equipment will be minimal, and you are guaranteed not to have any difficulties finding spare parts. At the same time, even the simplest installations in their functionality, reliability and ease of use will not be inferior to expensive factory shredders of freshly cut grass and feed.

Operating rules

When working with any electrical device, safety precautions must be observed. The grass cutter is no exception! To prevent the device from deteriorating, you need to know the basic operating rules:

The mechanism will jam if damp branches or grass are placed in the device.
You cannot store raw materials in large quantities. Everything should be in moderation.
The device must always be supervised when it is switched on.
The mechanism has piercing and cutting elements, so children should not be allowed near the device.
To prevent the device from getting wet in the rain, it is installed under a canopy.
Do not allow foreign objects such as glass or metal to get inside the device.
If something is stuck inside, the device is disconnected from the network and only then the stuck part is removed.
Electrical wires must be insulated.

The first launch of the device is done very carefully, since it is the most dangerous. https://www.youtube.com/embed/HoCh_HLO-Vc

Safety precautions when working with a chopper and during its manufacture

Since the design of the garden shredder includes piercing and cutting elements driven by a powerful engine, in order to avoid injuries you should follow the safety rules when working with it:

Before starting work, it is necessary to protect your face, eyes and head from wood chips, which can fly in different directions during the grinding process. This point is especially relevant when processing large branches. To do this, it is recommended to wear special safety glasses, a hat and a mask. You also need to select protective gloves that are sized so that they do not fall off your hands while loading raw materials.
The garden shredder must be installed on a flat surface to avoid it being thrown over during the working process. It is strictly forbidden to operate electric grass cutters in rainy or windy weather.
You can push and straighten the branches located in the funnel of the device only with a special pusher, but not with your hands.
Breaking branches should be of the recommended thickness, which will help avoid equipment breakdown.
Before loading the grass into the grinder, it is recommended to first sort it out, removing foreign objects from it (stones, metal, glass, plastic, etc.).
It is recommended to use only fresh branches for crushing. To avoid short circuits, do not use units with a damaged wire or socket, or allow moisture to come into contact with the cable. When refueling a petrol shredder, do not use an open fire near it, or smoke.
Before cleaning the device, you must wait until all units have completely stopped and disconnect the chopper from the power supply.

A garden shredder is an indispensable and useful thing for gardeners and farmers, which can be easily purchased at markets or made with your own hands. The main thing is to follow safety precautions and properly maintain the unit.

Sources:

https://naogorode.net/izmelchitel-travy-svoimi-rukami/ https://sotka.guru/dachnye-prisposobleniya/izmelchiteli/samodelnyy-izmelchitel-travy-iz-stiralnoy-mashiny.html https://7ogorod.ru /prochee/izmelcitel-travy.html

How to assemble a cutting element yourself

To make a milling knife you will need:

circular saws (10-12 pcs.). Their quantity may differ from the indicated amount, both smaller and larger. The more disks are installed, the smaller the chips will be at the output;
threaded rod M20;
bearings (internal Ø 20 mm);
dense soft plastic for making spacer washers;
washers and nuts for fastening.

Assemble the knife as follows:

Place the disk on the pin (its diameter of 20 mm coincides with the hole of the saws).
A washer cut out of plastic should be installed between adjacent disks. It is necessary so that the cutting edges of adjacent saws (they are wider than the blade of the blade) do not cling to one another.
The outer disks are secured with washers and nuts. As a result, you will get a shaft with circular saw blades located on it. All that remains is to install the bar with saws on the frame using bearings, bushings and clamps.