DIY grass chopper

Crusher for branches from available tools

Some craftsmen use ready-made devices as a basis, for which it is only necessary to make additional elements or parts. Instead of powerful stationary motors, you can use an electric drill or grinder. Consider the most common options for making a crusher:

From the washing machine

Activator-type "washing machine" is an excellent "semi-finished product" for making a homemade shredder. It will be necessary to dismantle the activator, install a knife on the motor shaft, which has a size slightly smaller than the diameter of the inner part of the tank. The principle of the knife is similar to that used in a coffee grinder - a horizontally installed plate with sharpened edges. A hole is made in the lower side of the tank, to which the outlet casing is attached. During the operation of the shredder, chips will enter it. The design is quite simple and reliable, it has been tested many times in practice.

The washing machine motor has a low power, rarely exceeding 500 watts, therefore, with the help of such equipment, it is possible to chop only straw or grass

From the grinder

To make a shredder from a grinder, you need a metal container, in the central part of the bottom of which a hole is made for installing a knife. The axis of the grinder is passed through this hole, a knife is installed on it. The tool itself is fixed in a stationary state so that the knife rotates freely without touching the walls of the container. The rotation speed of the tool is quite high, so it is recommended to set it to a minimum, so as not to get a “puree” from the green mass at the exit.

For the manufacture of a shredder, it is recommended to use a grinder with a power of 3 kW or more.

From a drill

In order to use the drill as a chopper, you will need a stand (it is usually recommended to use a regular stool with a 12 mm hole in the center of the seat). A bucket with a similar hole in the bottom is installed on top, for immobility it is attached to the stool with self-tapping screws. The knife, the size of which is slightly less than the diameter of the bottom of the bucket, is mounted on an axle inserted into a bushing with a bearing. The sleeve is attached to the bottom of the stool. The self-locking drill attaches to the axle and starts. The device is suitable for processing green mass in small volumes.

Homemade chopper for branches or stems of grass allows you to speed up the process of cutting material before laying in a compost pit or stove, mulching the soil and during other work. The cost of creating a shredder is much lower than the cost of purchasing a finished product, and a variety of design options from available materials and elements allows you to choose the best option for a given estate. Taking into account the episodic nature of the use of such a crusher, making the installation with your own hands is a profitable and uncomplicated event, and the efficiency of the shredder depends only on the thoroughness of the work.

Steps for creating a shredder

Building a unit with your own hands is a difficult job that requires certain knowledge and skills:

• the concept of designing mechanisms, calculating gears;
• the ability to build and read drawings;
• knowledge in electrical engineering for the selection and connection of an electric motor, start-up and control schemes;
• locksmith experience;
• welder skills.

First of all, you should think over the design, prepare materials and tools, make calculations and a sketch drawing.

Drawings and calculations

The sketch can be done the old fashioned way, by hand, or using a CAD program. Many freeware and shareware programs are available today, which are not inferior to the well-known, but very expensive products of the corporations AutoDesk, PTC, Dassault and others.

The main nodes of the created structure will be as follows:

• supporting frame;
• electric motor;
• shaft with a working body;
• loading mouth, or bunker;
• frame.

Twin Roll Shredder Drawing

Depending on the type of shredder used, the shaft design may vary.

The simplest, but also the least powerful option would be a set of 15-30 circular saw blades fixed to the shaft. A cutting package is assembled on the shaft, laying washers of the same thickness and diameter between adjacent disks of the same thickness and almost to the base of the saw teeth. The package is tightly attached to the shaft. The shaft and the electric motor are supplied with pulleys, the drive is carried out by a belt drive. This will be a productive (for thin branches) garden shredder.

If it is required to grind branches of a solid diameter of thickness, then it is better to choose a knife design of the cutting drum.

Working shaft

1-3 knives are placed in the plane of the shaft axis or at an acute angle to it. Their number is increased if it is required to chop smaller branches.

For very thick branches, you should choose a two-roll cutter scheme. Such a mechanism is better balanced, it has lower loads on the frame and walls of the bunker.

Ball bearings are installed in the side plates of the frame, which ensure the rotation of the working shafts of the unit. The gears mesh and synchronize the rotation of the shafts. Rotation from the electric motor is transmitted by a chain or belt drive.

Crusher diagram: 1 - throat 2 - frame, 3 - side bearing plate, 4 - working body, 5 - drive mechanism, 6 - belt drive, 7 - electric motor, 8 - engine base

If you need to quickly crush thin branches and grass, it is better to use a high-speed engine. For chopping wood of large diameters, a powerful low-speed motor with a high torque is suitable.

Tools and materials

For a single-shaft unit with a circular saw blade cutting device, you must:

1. electric motor 1.5-3 kW, 220 volts
2. pulley, 2 pcs.;
3. automobile drive belt;
4. bearing with a clip, 2 pcs .;
5. pipes for the construction of the supporting frame;
6. metal sheet, 2 mm thick for the hopper and the device body;
7. wires, switches.
8. discs for wood with a diameter of 180 mm, from 15 to 30;
9. spacer washers of large diameter, 5mm thick, one less than discs
10. shaft with splined or keyed mounting for the pulley;

To make a single-shaft shredder with a knife drum, you will need the same for PP. 1-7, and in addition:

1. shaft with machined shaped grooves and threaded holes for fastening knives, in accordance with the given diagram;
2. knives made of high-strength tool steel;
3. hexagon head bolts, with spring nuts, 12 pcs.

Working shaft: 1 - bushing, 2 - shaft, 3 - knife, 4 - screw, 5 - washer, 6 - circlip, 7 - gear, 8 - bearing

There must also be a splined or keyed mount for the drive pulley or gear at one end of the shaft.

For a two-roll scheme, in addition to items 1-7 and 11-13, you will need:

• side metal plates, sheet 10 mm, 2 pcs .;
• gears for synchronizing the rotation of shafts, 2 pcs .;
• bearings with clips fastening them, 5 pcs.,

Of the tools you will need

• grinder for cutting blanks and cleaning seams;
• welding machine;
• set of hand locksmith tools
• tester;
• pallet;
• assembly knife;

Of course, you will need a workbench with a vice, clamps, sandpaper, enamel and paint brushes.

Shredder assembly

After the calculations have been carried out and a sketch drawing has been built, all materials have been prepared, you can proceed to the assembly of the unit.

It should be carried out in the following sequence:

• frame assembly
• bunker making
• assembly of the working body and fixing it on the frame;
• setting of the electric motor;
• assembly of the electrical circuit.

Before plugging the device into the mains, it is necessary to turn it a few full turns by hand to ensure that the assembly is accurate and that all moving parts are functioning properly.

How to make a garden shredder

The process of creating a shredder takes place in stages and consists of the following steps:

• Selecting the type of working body, creating a working drawing.
• Parts ordering from specialists. If it is possible to perform machine work, this item is automatically canceled.
• Collecting the necessary materials and tools.
• Manufacturing of parts, assembly and testing of the device.

The creation of a working drawing is necessary for a more detailed understanding of the dimensions, connection methods and other parameters of nodes and structural elements. Moreover, some parts will have to be ordered from a turner, which in any case will require a well-executed drawing.

The first step is to choose the type of cutter. It is due to the capabilities of the owner, the nature of the upcoming actions, the composition and parameters of the material, the volume and duration of the work. It is necessary to take into account the complexity of replacement, adjustment and sharpening of the cutting tool, its durability, the ability to grind different types of green mass. In addition, it is necessary to be able to order or manufacture one or another type of working unit independently. The most effective design is considered to be with two knife shafts. But for its manufacture, you will need two absolutely identical shafts, interconnected by a gear transmission, which ensures synchronization of rotation.

The knot is difficult not only in manufacturing, but also in setting the knives.

They must be periodically sharpened, installed on the shaft, which is a rather difficult task.

A simpler design is a flat blade disc.

The main advantage of this option is the ability to dispense with the manufacture of the drive shaft by installing the disc directly on the motor shaft. The disc does not require a lot of space for planting, so you only need to make a disc and a protective casing with a guiding screen to organize the ejection of chips.

The cutting body, which is a set of circular saws or flat cutters for wood, is quite simple to make from a drive shaft for a circular saw.

You can simply convert an existing circular with a 32 mm shaft, which is suitable for mounting medium-sized saw blades. Alternatively, flat wood cutters can be used, the bore diameter of which is also 32 mm. In this case, you only need to install a protective cover and a guide device for compact discharge of chips.

Self-production of a shredder is an event that requires certain tools and materials. You will need:

• Sheet metal for the manufacture of casing, hopper, protective screens.
• Steel angle or channel to create a shredder frame.
• Fasteners - bolts with nuts required to connect the protection elements, install the working body, etc.
• Welding machine with electrodes.
• Electric drill with a set of drills.
• Grinder, hacksaw for metal.
• Ruler, tape measure, scribe for marking.
• Kerner, hammer.
• A set of wrenches, screwdriver, pliers.
• A can of paint, a brush.

The above list is not exhaustive, depending on the designer's intention, other materials or tools may be useful.

Shredder manufacturing procedure:

1. A frame is assembled from a corner or channel.
2. A cutting body is installed on the bed.
3. A platform for attaching an electric motor with a tensioner is attached. If you plan to use a gasoline engine, the mount is based on its design.
4. The pulleys are installed, the drive belt is tensioned.
5. The protective cover is assembled and fixed on the frame.
6. The guide device for ejection of the crushed material is not recommended to be fixed immediately completely, but to check the installation in operation. Sometimes it turns out that the chips fly off too far, which is inconvenient for the owner and greatly pollutes the site. Experimentally, the reflector is set in the optimal position, after which it is finally attached.
7. The assembled and tested device is painted to make it neat and elegant.

It often turns out that an error has crept into the working drawings, impairing the performance of the installation. Usually it is about the shape of the housing, contributing to the sticking of chips in narrow places or an irregular shape of the reflector. This results in excessive range or spread of the ejection, or vice versa, the accumulation of crushed material at the exit due to obstacles caused by incorrect configuration of the reflector. It is recommended not to assemble it completely right away, but to first make a test run of the installation and eliminate the discovered deficiencies.

Homemade equipment operation

From all of the above, we can come to the conclusion that making a garden shredder with your own hands is easy and simple. Almost any user can handle this.

However, it is important not only to know how to assemble such equipment, but also how to operate it correctly. Consider the intricacies of using a homemade device

You should only start chopping branches if you are wearing goggles or a mask. You will need a headgear and a tall pair of shoes. It is advisable to send the branches to the car with bare hands or with gloves, but very narrow and tightly fitting on the hands.

Do not put your hands below the opening of the hopper for loading waste. If necessary, it will be possible to push through the rubbish with a further batch of rods. It is permissible to use a special stick for this, which has branches at the end.
The dimensions of the branch that you send for processing should not be more than half the center-to-center distance between the shafts

When selecting wood particles that you plan to dispose of, it is very important to take into account the knives used in the technique.
Experts recommend installing a separate differential automatic device for such equipment. This part will protect the device from possible electrical shock if unforeseen circumstances occur.
Both during assembly and during the operation of a homemade mechanism, it is very important to adhere to safety rules

Take care not only to protect your hands, eyes and feet, but also to ensure that all parts of the shredder are securely fastened.
When working with a homemade shredder, it is necessary to ensure that inclusions such as stones or glass, metal or plastic do not fall into its receiving hopper. During storage, these elements should also not be in the container. They can seriously damage the structure of the device.

Twin-shaft plants are most effective in shredding wet branches. If it is necessary to process the elements of dense rhizomes, then they will need to be thoroughly cleaned from contamination.
If the snare drum is jammed due to wood inclusions stuck in it, then the device will need to be disconnected from the mains immediately. In the future, it is permissible to remove stuck waste only when the device is de-energized.

Otherwise, you are putting yourself in serious danger.
During the operation of a shredder (any - both branded and home-made), it is very important to ensure that the power cable of the device is not in the area of ​​dumping crushed waste.
If you want your homemade shredder to last as long as possible, then it will need to be thoroughly cleaned after each crushing job on site. After this, the device should not be thrown outdoors.

Allocate a shed for it or equip a canopy.

Only by observing all of the above features of operation can we talk about the durability and wear resistance of the grinder, which you made with your own hands. Of course, the quality of all the constituent components that you use during manufacture also plays an important role. Treat this equipment with care and attention. Do not forget to constantly clean it so that crushed waste does not accumulate (in advanced cases, it can be quite difficult to remove them). In addition, you should remember about your own protection while working with this technique.

How to make a homemade chopper with your own hands, you will learn from the video below.

Homemade Electric Shredder

A do-it-yourself shredder can be made if you have the necessary elements. The most practical is a wood crusher consisting of two shafts. For manufacturing, a drawing is created according to which the assembly is performed.

Initially, the necessary material and tool are selected:

• electric motor with rated power up to 4 kW
• a pair of steel plates up to 10 mm thick
• two gears made of high-strength steel
• a pair of pulleys
• shafts hardened and machined
• bearings for secure shaft attachment
• directly cutting blades made of steel
• metal case
• steel pipe of the required diameter
• set of wrenches
• welding machine
• powerful drill or hammer drill

We grind shafts from both sides of a square workpiece. In the center we drill holes for 4 knives, a thread is cut into them. The rounded edges are inserted into the bearings. A drum is made of 4 studs, and two steel plates in which holes for bearings are cut.

Bearings and pulleys are firmly fixed on the shaft, gears are installed on the opposite side. We install the housing with the cutting mechanism and the engine on a pre-prepared frame. The transmission of torque from the drive will be carried out using belts through pulleys on the motor shafts and knives.

The receiver body is made of sheet metal cut in the shape of 4 trapezoids. Using a welding machine, they are fastened together in the form of a truncated pyramid. The box is connected to the body of the cutting mechanism using a bolted connection.

Garden Shredder From Washing Machine

To assemble a branch chopper with your own hands, you need to carry out the following manipulations:

• The activator is removed from the old type washing machine.
• The prefabricated knife is mounted directly on the motor shaft.
• The size of the working tool is made slightly less than the diameter of the drum.
• A hole is cut in the lower part of the body from which chips will pour out.
• The body is attached to the hole.

Homemade grinder from the grinder

Making a wood chopper with your own hands from a grinder is divided into several stages:

• We take a 20 liter bottle, cut off the lower part, and enlarge the hole in the upper one. This will be the receiver.
• Skip the axis of the device from the side.
• We install the cutting element on top of the shaft and securely fix the entire structure.

Crusher from trimmer

For a do-it-yourself chopper of branches from a garden trimmer, you must prepare the following necessary elements:

• a container made of plastic or metal with a volume of up to 50 liters
• several pipes made of metal with a diameter of up to 20 mm
• steel net with an area of ​​about 1 sq. m with a fine mesh
• a piece of wood board or plywood
• it is necessary to purchase metal clamps for fasteners
• wooden bars and self-tapping screws for their screed
• the trimmer itself of any design

As an auxiliary tool, it is recommended to prepare:

• screwdriver
• anvil
• drill
• jigsaw
• bench hammer

In order to make a shredder, you must follow the step-by-step instructions:

• Initially, the capacity of the woodcutter is prepared. For this, trapezoid holes are drilled and cut at the bottom. Edges are processed.
• At the bottom, the mesh is fixed with bars.This makes a membrane.
• The container is placed at a low height using a pipe structure.
• The trimmer motor is attached to the board.
• The rod of the device is shortened slightly and is also installed on a base with a drive.
• A cutting tool is placed at the end of the rod.
• Before performing direct work, it is necessary to carry out tests. For shredding branches of different thicknesses, you can use different attachments.

Branch shredder classification

When planning the creation of a garden cheater, it is imperative to have an idea of ​​what thickness of wood waste you will have to deal with. Since all organic waste shredders can be divided according to the power of the electric motor and the principle of operation of the blade unit, the maximum diameter of the wood scraps affects the choice of design, operational parameters and technical characteristics of the unit.

By the type of power plant used

Both electric motors and combustion engines can be used in garden shredders. The advantages of the first are simplicity, compactness, ease of use. However, with the help of a gasoline or diesel power unit, you can create a truly mobile unit, and their capacity allows you to process branches more than 10 cm thick.

Combustion engine shredders are powerful and more mobile than electric units.

When choosing an electric power unit, be sure to consider the following factors:

• motors up to 1500 W can be used for small amounts of work and the thickness of the rods is not more than 2 cm;
• power plants with a capacity of 3 - 4 kW are the best option for suburban areas with a small garden. With their help, you can crush branches up to 5 cm in diameter, which is quite enough for a small private courtyard;

• electric asynchronous machines from 6 kW can process thick branches (from 10 to 15 cm) into chips for a long time and are recommended for use in large farms.

It should be noted that powerful electric motors require connection to three phases. If a conventional two-phase network with a voltage of 220 V is used, then the best way out of the situation is a gasoline or diesel power plant. Its capacity is 5 - 6 liters. with. will suffice in most cases.

By the design of the knife block

The diameter of the branches that can be shredded, and what size of processed chips will be obtained at the exit from the unit, depends on the design of the knife block of the garden shredder. For example, the simplest devices can only process thin branches, cutting them into lengths from 2 to 10 cm, while more complex devices are capable of crushing thick branches, grinding them into dust or producing lengths of 10-15 cm.

The design of factory knives is most often presented in three versions:

• disc-knife block, which is used for grass and twigs no more than 2 cm thick;

• a milling-type cutting system that can easily cope with thick branches, up to 8 cm. The only condition is that the raw material must be dry, otherwise the cutters become clogged with wood fibers and require constant cleaning;

• auger and turbine-milling cutting units are the most productive and versatile - they can equally easily process raw and dry branches of a rather large size into chips.

In home-made designs, it is difficult to repeat the auger or turbine-milling design, therefore the craftsmen take one of the following cutting block schemes as a basis:

• two-shaft system with several knives;
• disk-knife assembly;
• typesetting package of circular saws or cutters.

All three options are available for repetition at home and require a minimum of costs, since in their manufacture parts and assemblies from old automotive and agricultural equipment, pieces of corners, pipes, etc. are used. As for purchased items, you cannot do without them ...If there is no electric motor, circular saws or cutters in stock, as well as other parts, then you will have to buy them.

Making a garden shredder with your own hands

Depending on how many knives are used and how they are exposed, the fraction of the resulting mulch can be different. The drawing below shows the basic design of such a shredder: a disc with four knives mounted vertically. Also, the design works well if the disc is fixed at an angle to the horizontal, and there are only 1 or 2 knives.

Assembly drawing: 1 - 4 knives; 2 - disc cutter; 3 - bearings No. 307

Operating procedure:

Buy, order or grind a disc with knives yourself. The knife sharpening angle is 35–45 degrees. The blade of the knives must have holes for the bolts to attach to the disc.

It is important to align the knives correctly and secure them with bolts and stops.
Weld the frame, taking into account the fasteners for the drive and other elements.
Place the disc on the drive shaft and secure.
Weld the feed hopper and, if necessary, the receiving hopper of the chopped mass.
Collect all the elements on the frame.

If the frame is installed on wheels, then the structure becomes mobile.

Set of knives with fasteners

In the video, the master gives advice on the device of a homemade disc grinder.

rmnt.ru

24.08.16

Types of garden shredders, main units and elements

The shredders consist of a cutting device, a drive, a loading hopper and a frame with a sheathing. In addition, they can be equipped with a crushed organic matter hopper. From auxiliary means: a pusher and a sieve, which is used to obtain a certain fraction of chips. The residue on the sieve is sent for re-grinding.

Garden shredders are classified by type of cutting system and type of drive.

Cutting systems

• roll - branches and bushes;
• hammer - thin branches;
• milling - solid plant raw materials;
• with a rotating turbine - thick branches;
• knife - universal;
• trimmer (fishing line instead of knives) - grass, tops.

1 - hammer grinder; 2 - milling grinder; 3 - grinder with milling and turbine knives; 4 - knife disc grinder

There are other designs as well. For self-production, knife and typesetting from circular saws are suitable. The most common are knife, and the knives can be fixed on a massive disk in two, three pieces or more, or rotate towards each other in a two-roll design.

type of drive

Garden shredder drives can be powered by electricity or use two- and four-stroke gasoline engines. In practice, when making a unit with your own hands, they use an engine from a walk-behind tractor, which is idle for most of the year, or remove the motor from unnecessary household appliances. The main thing is that the power is sufficient - not less than 1.1 kW.

Some shredders that process extremely soft raw materials, such as succulent animal feed, may not have a drive and work from human muscular efforts. Below are the drawings of shredders that you can do yourself.

Homemade hand shredders. A - double-knife grinder: 1 - knives; 2 - shear plates. B - multi-knife chopper of greens: 1 - knives; 2 - counter plates; 3 - base frame. B - root crop shredder: 1 - shell; 2 - bearing; 3 - drum; 4 - crosspiece; 5 - handle;

In the first picture knives are made from old, one-sided sharpened saws, on the second - knives and plates are made of a saw blade. The knives have beveled teeth, like a saw, with a pitch of 5 mm. Both shredders are equipped with long handles for ease of effort. The working part of the third design is made in the form of a drum with notches, the sharp edges of which protrude outward.

Knot crusher

The material for the manufacture of a walk-behind grinder will be a 250 channel.Additionally, you will need a pulley with a cross section of 87 millimeters, and knives 100 millimeters long from an electric planer. It is necessary to build a receiving bunker into which various branches will be loaded. The bunker is equipped with a fixed sharp circular knife, which will chop the branches. It is better to take discs with a diameter of about 80 mm. The disc is mounted on M8 bolts. Thus, the knives will not be constantly clogged with fine dust when processing wood.

The main thing is to choose the right angle of inclination when installing the knife. Then the branches will be chopped up literally in an instant.

DIY electric wood chipper

You can make a garden shredder with an electric motor, then there will be less fuss with chopping, but there must be a place for connection, which is problematic in different parts of the site. In principle, it does not differ at all from the above. For such a shredder, you will need a 20 mm diameter disc with three oval holes for the subsequent attachment of the legs. The optimal engine will be 3 kW, but you can take a more powerful one. The disc can be placed horizontally, if desired, it can also be installed vertically. It is also called a wood chip grinder.

Consider installing a pair of bearings, the upper one will be support, and the lower one will be normal.

In principle, such a garden shredder has a small drawback - it works quite noisy, this is all corrected by checking the disc balancing. You can also slightly tilt the sleeve that feeds the branches, it will cut better.

We carry out a wood crusher with our own hands

The manufacture of such an apparatus in the presence of an appropriate circuit is not particularly difficult. It is only necessary to choose a working electric motor, the power of which will allow in the future to easily grind branches, grass and leaves.

The composition and use of the drug zircon: instructions

Circuit using a washing machine

Popular homemade foliage and wood chip shredders made from an old washing machine are popular. You can use not only an electric motor, but also a housing with a frame, which greatly simplifies the manufacture of equipment. It is possible to make a branch chopper for a walk-behind tractor with your own hands, which will be mounted on a cultivator and other mechanized equipment.

From the tool you will need:

• electric drill;
• pliers;
• Grinder;
• wrench and screwdriver.

The power of the electric motor in old Soviet washing machines usually does not exceed 1 kW, so the shredder can only be used for chopping grass and fallen leaves. Cutting knives can be made from scrap metal, which are sharpened and fixed on the shaft of an electric motor. You can also use factory nozzles, which differ in the quality of workmanship and greatly simplify the manufacture of a homemade shredder.

The work algorithm will be as follows:

1. The body of the washing machine is cut in height.
2. At the bottom of the side, a hole is cut out with a grinder about 20 cm wide and 8 cm high.The resulting hole will be required to eject the ground plant waste. A casing is made near the slot or guides are attached to fix the plastic bucket.
3. Legs are welded to the trimmed body.
4. Two holes with a diameter of 6-7 mm are drilled on the motor shaft. A threaded sleeve is installed in the drive, fixing it with bolts.
5. An electric motor is mounted at the bottom of the box, using nuts and pins to fix it. On the sleeve inside the casing, knives are fixed, which are located 10-15 cm above the hole for ejection of ground grass.
6. The body is fastened by welding or collapsible on bolts and other fasteners.
7. It remains to lead the power cable and mount the start button. You can use a regular start from the washing machine, taking care only of the required length of the power cable.

Homemade grinder from the grinder

A self-made grinder from a grinder is another simple option, which will not be difficult to implement. To work, you will need the following tools and materials:

• steel corner;
• metal container;
• fasteners;
• purchased or homemade knives;
• sheet metal;
• welding machine;
• electric drill;
• angle grinder.

Which pruner to choose for pruning trees in the country

The power of the power tool will be enough for grinding foliage and processing small branches in thickness. It is recommended to use old grinders for the manufacture of a shredder, the drive power of which is 3 kW.

The assembly is carried out in the following sequence:

1. A sheet metal is cut with a grinder, after which a frame is welded from it, which resembles a chair in its appearance.
2. Sheet metal is welded to the completed shelf for the base of the grinder.
3. The grinder is attached to the frame with clamps, placing it with the shaft up.
4. A hole of 10 * 10 cm is cut out in the metal container used.
5. A sleeve is inserted into the hole, which can be made of plastic or tin.
6. At the bottom of the container, a hole is made in the center, into which the shaft from the grinder drive will enter.
7. The metal container is installed on the grinder shaft and additionally fix it to the frame with self-tapping screws or bolts.
8. Discs or used homemade knives are installed at the bottom of the container.

Making garden shredders of branches and grass with your own hands from a trimmer, grinder or a drive from a washing machine, you can get functional and easy-to-use equipment that will allow you to easily dispose of various garden waste, including cut branches, fallen leaves, mowed grass and other biological waste.

It will not be difficult to make such equipment. It is only necessary to decide on the scheme used for the execution of the unit and subsequently, according to the available documentation, carefully weld and assemble a homemade grinder, which, in terms of capabilities, will not be inferior to factory equipment.