Every owner dreams of creating an island of family well-being, a beautiful well-groomed plot, using a minimum of manual labor. A DIY lawn mower is one of the ways to rationally use components from abandoned machinery. The resulting tool not only saves money, but takes into account the characteristics of a particular lawn. Depending on the need, the craftsman can create a tool with manual mowing and electric drive. The use of various types of cutters, wheels, and their arrangement leads to unusual solutions. Read about the popular one on our website!
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:
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 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 DIY, 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:
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 effective. It is important to maintain 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.
Such a 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.
Here is an example of people's ingenuity. The beautiful frame from the corner was thrown out of the warehouse as scrap metal as unnecessary. Special wheel assemblies with a rotation of 180 0 on the hinge were found there. Without such a frame, the platform could have been welded. The remote working unit is independently driven from the chainsaw via a belt drive. Torque is transmitted to discs, where metal chains 25 cm long serve as cutting tools. A DIY lawn mower has been used effectively for several years. An improved version has been made with a rotary cutter and a two-wheeled frame. It works more efficiently, but is difficult to manufacture.
Each master is proud of his ingenuity and the performance of the tool. However, it should be understood that the collective mind of designers creates tools that are no less functional, but safer.
The advantages of homemade tools include:
The height of grass mowing is not adjustable, and the clearing is not always cut evenly. The absence of a grass catcher increases the share of manual labor. A heavy tool with narrow wheels sometimes spoils the appearance of the lawn - this is an objective answer to why it is better to use a factory-made tool.
Let's make a reliable lawn mower with our own hands
Create an island of family well-being, a beautiful well-groomed area, using minimal manual labor, every owner dreams of. Lawnmower with your own hands is one of the ways to rationally use components from abandoned mechanisms. The resulting tool not only saves money, but also takes into account the characteristics of your specific lawn. Depending on the need, the master can create a tool with manual mowing or electric drive. The use of different types of cutters, wheels, and their arrangement leads to unusual solutions. Read about the popular Stil ms-180 chain saw model on our website!
The first step is to determine which tool effectively replaces conventional hand braiding when maintaining a site. Perhaps dense planting, dense bushes and flower beds will not provide access to an area that will become piled up, and then the "swirl" of grass will need to be cleared by hand. Self-collect lawnmowers for mowing areas over 4 acres.
Select a method for driving the cutters. basis for collecting the necessary components. Knives can be driven:
Determined by the energy component, you will need to choose the wheels, handle, platform for collecting the lawn mowers with your own hands. Connect the required fasteners and connection, protection and interconnection circuit components.
The electric motor can be single-phase, operating on mains voltage 220 V, or three-phase. When connecting the motor, you must follow all safety rules when working with electrical appliances. It is necessary to provide RCD protection for a single-phase electric motor, and a powerful three-phase device must have capacitors in the circuit corresponding to the capacitance.
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For an electric lawn mower, you can use your own high-power, low-speed drill at 1500-3000 RPM. The correct power to swath width ratio must be selected to avoid overloading the motor. A rechargeable or corded drill installed on the platform 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. Such a tool will help clean a local area, is easy to fold and does not require much storage space. The platform on which the motor is mounted must be narrow to accommodate the wall area. Stability depends on the location of the center of gravity. The lower, the smaller the turning point of the platform. How to properly evaluate a lawn mower with your own hands, watch the video:
When creating a tool yourself, remember that this is a high-risk tool. It is necessary to include in the circuit a locking button that works when the knife is clogged or broken. You cannot operate electric mowers in wet weather such as morning dew.
Here we look at the dimensions of the mower. mower to order.
chainsaw mower.
More complex models with an engine power of 1.5 to 6 kW are installed on a specially made base. It is better to use an asynchronous motor, it is less noisy. Chassis. These are metal rubber wheels with wide protection so that the grass is less wrinkled. Bearing units in bushes on an axle are more reliable than plastic liners.
Fire up the block and knife using an old frying pan and a tool steel plate. The design, when the knives are mounted on a mandrel, is more efficient. It is important to observe the proportions and profile of the pointed edges using your drawings in the photograph own lawnmowers hands.
Great importance for the performance of high-speed assembly. correct alignment. A small heartbeat can create a strong vibration, destroy connections, create a backlash by creating seats.
The household always accumulates mechanisms and parts that have spent their time. Something can be found in home dumps 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. As an example of a lawn mower with my own hands from a Soviet-era washing machine. They were then made of durable metal. The engines of these machines cannot be beat in terms of parameters and power suitable for use in a lawn mower.
The high-quality steel body will serve as a protective skirt and guide when the grass slides sideways. In addition to the motor, two pulleys and a belt are used to transmit rotation from the motor to drive the blades. The motor is fixed to the platform and connected to one phase.
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Such a home mower works in the neighboring territory, since it is connected to the network with a power cord. You can use a special coil extension, selecting a section that matches the engine power. Such a device is made at least 40 meters long and must ensure mobility.
Usage chainsaws does not require additional protection in the lawn mower. It is already dustproof. Air filters clog less often.
How do your own lawnmower? The exercise-based tool is dependent on battery capacity and requires charging online. In the absence of electricity, all that remains is to build a lawn mower based on an internal combustion engine. All small cars filled with gasoline or a combustible mixture can become a donor for a homemade lawn mower.
Here is an example of folk savvy. A beautiful frame from a corner is thrown out of a warehouse as scrap metal. At the same place, special wheel assemblies with a 180-degree rotation on a hinge were found. Without such a frame, the platform could be welded. The completed working unit is independently driven from the chain saw using a belt drive. The torque is transmitted to the discs, where a 25 cm long metal chain serves as a cutting tool. A DIY chainsaw lawnmower has been used effectively for several years. An improved version has been made with a rotating cutter and a two-wheel frame. It works more efficiently, but is more difficult to manufacture.
Every craftsman prides himself on his wit and ability to work. However, it should be understood that the collective mind of designers and designers creates tools that are no less functional, but safer.
The advantages of homemade tools include:
The engine of any chainsaw can be used to make simple equipment: from a mower to a helicopter. It all depends on the tasks and goals of the master. But not everyone understands why the engine is from the Druzhba 4 saw. Not everyone fully understands how and what you can do with your own hands. This article was written to help masters and fill this gap.
Let's name a number of arguments why it is worth using the Druzhba chainsaw for remodeling:
To make homemade products from a Friendship chainsaw with your own hands, you need a beginner’s tool kit, a desire and an idea. The main tools needed for work are an angle grinder and a welding machine. You already have a desire, otherwise you would not be on this page. The very idea for converting the Druzhba chainsaw into any unit can be found in this article.
In the article we offer only an idea, without step-by-step instructions for action. Otherwise the article would have been ten times longer. If after reading you still have questions and you need detailed instructions, then leave your wishes in the comments to the article and we will write a step-by-step guide for converting a chainsaw into a specific unit that will collect the most wishes.
There is a large list of techniques that you can make with your own hands. Everything is limited only by the imagination of the master. There are many videos published on the Internet with detailed descriptions of step-by-step making of homemade products. As part of the article, we have collected only the best videos, based on which you can easily make the technique you need. The simplest homemade product is considered to be a boat motor, and the most complex is an all-terrain vehicle, a motorized dog, or a lawn mower. Here are examples of homemade products from simple to complex.
This craft is not directly related to the Friendship 4 chainsaw, but is in demand because... The knife from the Friendship chainsaw tire holds an edge very well and is resistant to corrosion. For manufacturing, you only need the saw bar itself. The price on the secondary market varies from 200 to 500 rubles. To implement the craft, we suggest watching an interesting video, the author of which describes in detail how to make a kitchen knife from a tire. The peculiarity of the video is that the author shows a simple method of making a hole in the steel of the handle, without drilling.
To make a bicycle with an engine from a Druzhba chainsaw, you will need the saw itself and a bicycle, preferably a Kama with a rack. Homemade manufacturing process:
To make a mower, you will again need the Druzhba 4 chainsaw itself, small wheels, a knife and rolled metal for making the body and protective casing. The knife will fit either from a brush cutter or from a lawn mower, it all depends on what working diameter will be specified by the project. We present to your attention a video review, the author of which made a mower from a Ural chainsaw (there is no significant difference from Druzhba, which is why we recommend watching it).
Converting a chainsaw into a boat motor will be much more difficult than converting it into a bicycle or mower. The product will be aimed at contact with water, and as you know, you need to be extremely careful with it. According to the recommendations of many craftsmen, it is better to use the drive and shaft from an old outboard motor. The engine is from Friendship 4. All that remains is to connect them together. For example, we recommend watching an interesting video, the author of which made a boat motor from a Druzhba 2 chainsaw. The author demonstrates the operation of the saw in a barrel of water.
To make a sawmill from a chainsaw, it is enough to make a device for longitudinally dissolving a log. Its task is to hold the saw bar in a level plane relative to the log. For a visual representation, we recommend watching a video demonstrating the device in action. From the video it becomes clear that for homemade work you need a minimum of materials - ordinary rolled metal (profile pipe).
Converting a chainsaw into an all-terrain vehicle is already very difficult, but still possible. There are many videos on the Internet whose authors have implemented this idea. The whole point is that you need to make your own chassis: frame, wheels, drive, etc., and the Druzhba 4 chainsaw will be used as the engine. The only recommendation is to use instead of wheels ordinary cameras connected around the perimeter, such wheels are essential lighter than those with tires, which means it will be much easier for the motor while driving.
For review, we suggest you watch an interesting video about a homemade all-terrain vehicle made from a chainsaw, Druzhba 4. The homemade vehicle uses a scooter, a goose, so it is most likely a snowmobile rather than an all-terrain vehicle.
Making a motorized dog from a Druzhba 4 chainsaw, as in the case of an all-terrain vehicle, also comes down to the initial development of the chassis: frame, caterpillar, controls, etc. And the saw engine is just a driving force.
We invite you to watch an interesting video, the author of which shows how to make a motorized dog from almost scrap materials. For example, the caterpillar hooks are made of ordinary plastic pipes, and the entire frame of the motorized towing vehicle is welded from an ordinary small-diameter profile pipe.
Converting a chainsaw into a helicopter is most likely just an experiment, there is no practical application. There are videos of aircraft on the Internet, the authors of which developed such projects and put them into practice, for example, a homemade plane made from a chainsaw.
Friendship 4 is an ideal option for DIY equipment crafts. Inexpensive and accessible, you don’t mind spoiling it, there are a lot of ideas for implementation. The main thing is desire, if you have it, you will have a mower, a boat motor, an all-terrain vehicle, and much more. Good luck, engineers!
In the spring of this year, this lawn mower was assembled quite quickly. Why fast? Because I didn’t have to sharpen a single part. And yet, the design used inexpensive and accessible materials and spare parts.
The mower has a number of advantages even over industrial ones, namely: a large working width - 500 mm, mulches the green mass of grass (with the basket removed and the guide sleeve removed, with the top window closed); mows down the crushed mass, throwing it to the left; has a large basket for chopped herbs. And the main thing is its low cost. We often use a lawn mower to feed farm animals, so it rarely sits idle.
The lawnmower engine is used from a Ural-2M chainsaw with a power of 5 hp, with minor modifications: an imported carburetor from a scooter is installed through a textolite adapter about 15 mm thick. With such a carburetor, the engine runs smoother and more stable in all modes, besides, it consumes less fuel and starts easier.
A gas tank, also from a Ural chainsaw, with a capacity of 1.6 liters (it is more suitable in shape and design to the design of the power plant) is screwed directly to the base of the engine gearbox via a bracket. To avoid carburetor clogging, a fuel filter from the same scooter is connected to the fuel line.
The lawn mower's transmission has an inertial clutch, which avoids serious damage if a foreign object accidentally gets under the blade (for example, large branches). The chainsaw gearbox (gear ratio 1:2) has no changes (it is only turned 90° with the sprocket down). The 12.7mm pitch chain drive has a Z1-17 tooth drive sprocket and a Z2-11 tooth driven sprocket. A chain gear that increases the number of revolutions is the price that had to be paid for the lack of alterations in the transmission. The drive sprocket Z1 is welded to the “original” sprocket of the chainsaw chain, from which the guide jaws have been previously removed.
The lawn mower frame consists of two hoops, bent from a steel strip with a cross-section of 30×4 mm and an internal diameter of 500 mm. These “hoops” are welded together so that the width of the resulting rim is 110 mm. The remaining parts of the frame, including the handles, are made of a square pipe with dimensions of 20x20x1.5 mm, and only on the front axle a square pipe with dimensions of 15x15x1.5 mm (made from leftover metal) is used.
The handle has an articulation that allows you to adjust it in height, and fold it in the opposite direction for storage in winter - the handle will take up less space. The wheels are used from baby strollers and have different diameters (it’s easier to find two wheels than four identical ones). And one more thing, from experience: in the previous version of the lawn mower, they used wheels of small diameter (side wheels from a children's bicycle), they were not very convenient to use (they constantly caught on something or ran into small obstacles). I did not adjust the blades according to the height of the grass being cut because I had decided on this parameter a long time ago. It is approximately 50 mm from the ground plane to the plane of the knives. I found this 50 mm experimentally: if you cut the grass shorter, it doesn’t turn out very nicely (the root part of the stems - the turf - is exposed, and it is either white or yellow) - as a result, the mowed lawn had an unpresentable appearance, and also in a basket with green mass “pulls” the earth (animals are not very happy with such “seasoning”). When the stubble is high, the area appears unmown.
In total it took for the frame: strips with a cross section of 30×4 mm - 3.5 m; square pipes 20x20x1.5 mm – 5.1 m; square pipes 15x15x1.5 mm -0.4 m.
To install the knives, a steel part of the hub was welded to the frame, which was removed from the aluminum part of the wheel of the IZH motorcycle. Accordingly, the axle was used from the front wheel of this motorcycle; it was only necessary to replace the bearings with sealed ones, since the “original” ones were worn out. As you can see, a driven sprocket Z2-11 teeth is welded to the top of the axle. Between the sprocket and the hub bearing there is an 8 mm thick washer made from a water pipe with an internal diameter of 15 mm. On the other, lower side of the axle, a flange from the water pump of the UAZ-31512 car is “planted”; it fits along the inner diameter to the hub axis. I only had to grind the axle with an angle grinder and “select” the metal for the wedge connection between the flange and the axle.
Later, after assembly, a side “window” was cut out on the left side of the casing to throw the green mass to the side. to the left. This layout option allows you to mow (mulch) the green mass of grass with less load on the lawn mower motor, and use it even in heavily overgrown areas.
The lawn mower blade is cut from ordinary non-hardened steel with a thickness of 3.5 mm. This is done so that if the knife hits a serious obstacle, it will not break and part of it will not fly off, but it will only bend, but remain in place. The knife has two curved “blades” cut from stainless steel 1.5 mm thick. The blades are connected with 5 mm steel rivets. The blades “feed” the green mass into the basket. The blade was balanced directly on the mower shaft (until the chain drive was connected) - the shaft rotated easily and the blade. installed on the workplace, rotated and sharpened at “heavy points” until balance was established.
The basket is welded from a steel rod with a diameter of 7 mm. It is covered with a green polyethylene mesh 2 mm thick with a cell measuring 10x10 mm. Subsequently it turned out that they were too large and had to be covered with mosquito netting on top. In total, it took about 12 m of metal rod, two simple canopies and two linear meters of polyethylene mesh to make the basket.
The basket in the lower front part has two welded attachment loops to the lawn mower body, and in the upper part there are two eyes for spring stoppers.
The basket lid is connected to the basket by two small window scales. There is also a lid locking device, it is made on the principle of a clamping screw and an eyelet. The basket also has a handle for easy removal and carrying.
The guide sleeve is made of galvanized sheet metal 0.5 mm thick, and since it has a slightly difficult shape to bend, it was cut from separate parts. These parts are connected to each other by means of a narrow corner with rivets, cut from the same galvanized sheet. The sleeve itself is attached in three places to the body with M6 bolts.
The description of the design of the lawn mower provided data on the amount of materials used; all that remains is to calculate their cost and get the result.
A lawn mower is a tool that greatly makes life easier for owners of their own plots or cottages in the summer, especially if they occupy a large area. The models offered in the retail chain are convenient and functional, but their cost is very high and not everyone can afford them. In addition, modern lawn mowers are not entirely adapted to our conditions of “difficult” lawns - with stones and large weeds. So before you buy a new lawn mower, consider creating a DIY chainsaw lawn mowers. Especially if you bought a modern chainsaw, and an old, domestic one, such as “Ural” or “Druzhba”, is lying around idle.
In this regard, unnecessary domestic chainsaws can be used for other purposes, in particular to create a simple lawn mower. You can use the Ural, Druzhba or any other chainsaw to build a homemade lawn mower, while maintaining the main function of the chainsaw, if necessary. The domestic tool is more powerful and can be used for mowing lawns with stones and weeds.
In its simplest form, a lawn mower consists of the following components and parts:
The engine is the main mechanism.
The frame on which all mower components are attached.
Protective casing.
Handles and control system parts.
The chainsaw engine assembly is used as the engine. If the chainsaw is not working, then an article on chainsaw repair and maintenance will help you. Without changing anything in its design, this engine is placed on a movable cart. This is what needs to be done. Such a trolley is welded in the form of a frame from a 25 x 25 corner with dimensions of 500 x 600 mm. Then wheels of the required size are attached to it at the corners, thus forming a chassis.
Then the tire and “steering wheel” are unscrewed from the chainsaw. A trolley handle with height adjustment (telescope) is made from water pipes. This is not necessary, although such a design increases versatility and ease of use by people of different heights. A “steering wheel” is screwed to the handle of the trolley, the “throttle” cable and the fuel hose are extended. The saw motor, together with the gearbox, rotated 90 degrees so that the shaft is at the bottom, is screwed onto the frame. To do this, use a hole in the gearbox to secure the tire and two studs for fastening the flywheel housing, located below. Now the basics homemade lawnmower ready and all that remains is to attach the cutting tool.
A piece of pipe with a diameter of 50 mm and a length of 80 mm is coaxially welded onto the “star” of the chainsaw, the ends of which are processed on a lathe. Then another piece of pipe is selected, 80 mm long and approximately 58 mm in diameter, which is placed with a gap on the previous piece of pipe. In this way, a telescopic shaft is obtained from two pipes connected by M6 bolts with locknuts. The bolts are located diametrically opposite, and several holes are made - this will allow you to adjust the height of the cut lawn grass using pipes that are shifted relative to each other and partially compensate for the imbalance. The base of the knife is prepared - a metal disk with a diameter of 180 mm made of sheet steel 4 mm thick is welded to the second pipe.
Homemade lawn mower blade
Three knives are made from an old wood hacksaw - a 30 mm wide strip is cut from the blade using a grinder and cut into pieces 120 mm long. Holes are made in the knives using electric welding. The knives made in this way are screwed to the base with M6 bolts and locknuts at an angle of 120 degrees so that they rotate freely on the axes. This is done so that when meeting a stone or some other obstacle, the knives fold. They are separated by centrifugal force during rotation. Such knives are enough for a season of full use, but sometimes you can sharpen the knives and use them again. The total diameter of the disc with knives is 480 mm; during operation, the knives deviate slightly and the mowing strip is 400 mm. When making a larger trolley, the length of the blades can be increased and then more grass can be captured when mowing.
In essence, there are many options for making functional knives, as well as materials for making them. The main thing is to sharpen them well, center them (so that there is no vibration) and securely fasten them.
You can also use tool steel flats with a thickness of 2-3 mm and a width of 20 to 50 mm as knives. The thinner the knife, the better it cuts. However, a thick knife is stronger, which, given the obstacles encountered in its path in the form of bumps, various foreign objects and even stones, is very important.
You can use various double knife options. The first, classic one, is a knife in the form of a long strip, which is attached to the mandrel symmetrically relative to its axis. The length of the knife in this case is equal to the width of the grip - usually 30-50 cm. In our case - 48 cm. The sharpened ends of the strip act as cutters. The knife and mandrel are one integral part in the form of a plate, to which a flange with a mounting hole is welded or rivet-attached.
The second option is two short knives 50-80 mm long, which are attached to the edges of the mandrel at an angle of 180° to each other. They can be positioned straight or with a slight slope. The knives can be secured with two or one bolt or rivets. The first method is more reliable, however, fastening with one bolt allows the knife to fold (without breaking or deforming) when it hits an obstacle - a stone or a bump. The fastening of folding knives must be inspected regularly, because... Over time, the screws may wear out.
Quote from operating experience - “At first I fastened it with M4 bolts, but they unscrewed and broke the tin casing of the mower. Then I riveted it with store rivets using a riveter - and they were cut off quickly. And in the end I took a nail with a diameter of 4 mm, cut off a nail cutter 1 cm long, and riveted it with a nail . This is the best option! Even if the knives are a little loose, they don’t fall off!”
We conclude that the best fastening is a steel rivet.
The steel for knives must be sufficiently hard, but not brittle, otherwise the knives may break, which will not only require their replacement, but also create the risk of injury from a flying piece. The experience of amateur craftsmen shows that wood hacksaw blades 2 mm thick are very suitable as a material for lawn mower blades. The technology for making a knife from them is simple. Two strip-shaped blanks are marked on the canvas (or one long knife is made from the canvas with sharpening at the ends and holes for fastening in the middle), which are then cut out with a grinder. Holes for fastening are drilled in the workpieces. After this, all that remains is to sharpen the knives, attach them to the frame and center them.
If drilling holes is problematic, then you can place the blade on a metal surface with a hole slightly larger in diameter than the hole in the blade should be and hit it with a punch. The protrusion formed after the impact is removed with a file (if the metal is soft enough) or with a sharpener. If the hole does not meet the required diameter, the process is repeated.
It works like this homemade lawn mower easily, mows thick grass and small bushes without much effort, and is not afraid of encountering stones and other hard obstacles. If you need the chainsaw again, you just need to unscrew it from the frame, replace the sprocket and install the bar and “steering wheel”.
Well, it’s up to you to decide what’s better - buy a ready-made lawn mower or make it yourself.
