DIY circular grinder, drawings. Circular saw from an angle grinder Circular saw from an angle grinder

Almost every private building has a utility room. It is most often stored in Construction Materials and tools, equipment and agricultural machinery.

In this article we will talk about how to make your own circular saw based on an engine from a grinder using improvised materials left over after repairs.

Design Features

You can carry out the work of transforming one type of saw into another using old elements left over from repairs. With your plumbing skills and ingenuity, you can special effort cope with this task.

The distinctive features of this type of device are that there are circular saws made from grinders as homemade machine or hand tool, fixed to a table or other base.

if you have old grinder, then it is best to remove the engine from it and use it as the core of a future saw. A washing machine motor is also suitable.

Any circular machine has several main components:

homemade table as a stable frame;
saw stand;
engine from an angle grinder;
sliding stop;
bar for adjusting the cutting height;
gearbox, saw blade.

This machine is suitable for cutting small wooden beams. When is wood processing planned? large quantities and large dimensions, it is better to purchase ready-made production equipment. Its cost is high, however, for business this purchase will be the ideal solution.

To work safely on a circular saw, you should carefully select a blade for it. The grinder is a complex tool and you can use a disc from it to cut wooden products it is forbidden. It can jam at any moment.

Spinning very high speed, such an element is capable of crushing wood into splinters, which can cause injury. This happens because during processing a high temperature load is applied to the disk. It is best to purchase a new product specifically for your circular saw.

If the circular is mounted on the floor, the frame should be secured with fasteners (corners) to ensure its stability. To make a frame, you can take an unnecessary cabinet or several sheets of chipboard. However, it is more reliable to make it from metal.

Main work surface It is better to make countertops from plywood or laminated particle board. The table must stand very firmly on the floor so that its vibration is insignificant.

The saw blade is installed with a smaller diameter than that used for the angle grinder - this will prevent the engine from overheating. You can buy it both in auto parts stores and in specialized construction markets. The engine power of the grinder from which the circular saw is made should not be less than 1600 watts.

More difficult option implies installation additional elements: pulley systems, belt drive. With this manufacturing method homemade design will take on the appearance of a production machine. The presence of a belt will reduce the speed of disk rotation.

Necessary tools

For the job you will need tools, building materials or pieces of parts from old furniture assembly parts.

You will need:

pliers, screwdriver, adjustable wrenches, hammer;
sheet metal, angles, nuts, bolts, screws, fasteners;
grinder and electric drill, switch and socket;
screwdriver, ruler.

Step-by-step instruction

The process of making a circular grinder with your own hands includes a number of steps:

first of all, you need to make a base table;
install the grinder itself and the disk;
attach the stop bar;
supply electricity;
carry out a test run.

The main element of both the mini-sample and stationary option The circular table is a frame table. You can make it using drawings, or build it to your liking, observing the basic principle of making such a part of the saw. Everything will depend on the size of the wood material that you are going to cut in the future.

We will tell you how to convert an angle grinder into a miniature circular saw. With its help you can saw bars, small boards, slats used in repairs or in private households.

The table looks like a workbench, the base of which is most often made of lumber.

First, take sheets of chipboard and knock together a miniature table from them., the legs of which are made at such a height that a grinder can be placed under the frame. They are attached to the stiffening ribs. Those, in turn, are made from small boards and are fixed along the edge of the tabletop at a distance of 7-10 cm from its lower side using self-tapping screws.
It is advisable to make the upper working surface from laminated plywood. When the tabletop (bed) is ready, it is turned over face down and markings are made for installing the grinder and saw blade. An element from a grinder is taken as a basis, and measurements are taken from it to make a slot for a new disk. At its ends, the extreme boundaries of the future hole (slot) are marked with a pencil. Then take a drill and drill out the formed points.

After that Using a ruler, connect the edges of the formed holes by drawing two parallel lines at their width. Part of the tabletop inside such lines is cut out using a grinder. The slot for the disk is ready.
Then you should purchase a new disk from the store. The best option would be to buy a sample for woodworking measuring 125 mm with carbide teeth - there can be 24, 36, 48.
A bar is screwed under the working surface of the table, to which the grinder is attached using clamps. You can fix it using clamps you made yourself and tightening nuts. At the same time, the disk itself is installed in the table (in a cut hole). It should be positioned so that most of it is on the surface. It is advisable to attach a protective visor. It is sold in any hardware store, so you can easily buy such an element. It is usually attached to hinges, allowing the visor to fold back.

A thrust strip is made from a metal corner or from a plastic scrap of an old plinth.. It can be mounted on plywood or chipboard. The length of this bar should be the same as the working surface of the table. Screw the bar (limiter) at a distance of at least 2 cm from the teeth saw blade. Two holes are made at the ends of the rail and fixed in the table using bolts or ordinary self-tapping screws.
The board or block being processed must fit completely on the countertop, because when the disk moves at high speed, the lumber is subject to vibration. It is impossible to hold lumber suspended - there is a risk of serious injury.
At the next stage of work With inside mini table fastening electrical outlet , through which the wire is passed and then the switch is installed. Usually its fixation is carried out with outside one of the stiffeners. The wire from the switch is directed to the power source - thus supplying electricity to the circular.

When the saw is ready, do a test run and cut small blocks, paying attention to the speed of rotation of the disk.

This completes the work.

Craftsmen, in order not to make a table for a circular saw, use a vice as a supporting frame. At the very beginning, they clamp the grinder with the disc on the edge of a regular table, removing the protection and unscrewing the handle of the grinder. Then they take plywood or chipboard to form a frame in which a hole is made for the disk. It is secured by drilling a hole and inserting a bolt into it. It should coincide with the hole on the grinder where the handle is attached. The bolt is tightened until it stops using a wrench.

A thrust bar or limiter is made from scrap materials. It is bolted to the ends of the frame using ordinary self-tapping screws. Under the weight, the grinder can lean forward and catch the tabletop itself with the disc. In this case, you need a handle. You can unscrew it from an old seaming wrench and screw it into an angle grinder, making a support for the engine.

This miniature homemade design works efficiently and cuts slats and beams efficiently.

Operating rules

The use of such structures in wood processing as homemade saws, equipped with disks, imposes certain responsibilities on their owners.

In addition to a table well fixed to the floor and a protective cover on the disk, it is necessary to organize the supply of sawmill material in both directions: from right to left and back. You cannot move boards and slats along the frame while the circular machine is operating by hand; for this you should use a block or its equivalent made of wood. It is not recommended to be near the rotating disk at a distance of less than 25-30 cm. Do not keep your hands close to the saw - you can damage your fingers.

You need to turn the circular saw on and off using a button located either on the side or front of the unit. When the disk is rotating, standing behind or in front of it is prohibited.

A circular saw, or more simply a “circular saw,” can be useful to any man during a major overhaul. home renovation, and just on the farm. And if you suddenly need it, you don’t have to run to the store to get it. You can take a grinder and, after spending a little free time, turn it into a circular saw with your own hands.

How to make a circular grinder with your own hands? This does not require special drawings or professional skills. You will need a little patience and the presence of some tools and improvised means in the house:

cutting wheel for wood (150-180 mm);
electric drill;
reinforcing bars;
metal clamps;
bolts, nuts, washers.

Making a sliding stop

First you need to assemble a thrust-sliding structure for the future circular. To make this part, you will need two oblong metal corners - they will be located on both sides of the cutting wheel. It is advisable to sharpen the lower edges of the corners so that they do not scratch the workpiece when cutting.

Next, the corners are connected to each other at the edges with bolts and nuts, and a gap is left between them using washers. There should be a gap of 3-4 mm between the corners and the disk on each side so that the disk does not touch the edges of the stop during operation.

Then a clamp is put on the tool body with the tie down. The sliding stop must be firmly fixed to the screed. You can use galvanized tape.

Preparing the gearbox and making the axial handle

It is quite difficult to make a quality cut using a standard angle grinder handle. Therefore, it is recommended to make a handle with your own hands and then attach it to the grinder.

But first you need to prepare the instrument for such a modification. It is recommended to disassemble the tool gearbox and find areas suitable for drilling. Then drill several mounting holes with threads for a small bolt in the gearbox housing.

The handle itself is best made of metal (reinforcement, pipe or cross brace). At those ends of the handle with which it is attached to the gearbox, mounting holes are drilled. The handle is then attached to the tool using fasteners.

Making an adjusting rod

Before you start using homemade circular, it should be equipped with a cutting depth regulator. The so-called adjusting rod.

A piece of reinforcing rod with a diameter of 5 mm is used as an adjusting rod. One of the ends of the rod is bent and flattened, then fixed with the front bolts of the corner stop.

A thread is cut at the other end of the rod. This is necessary for the rod to fit into the hole in the axial handle. Then a nut is screwed onto the thread, and the tail of the rod is threaded into the hole in the handle. After this, another nut is screwed on.

By loosening and tightening these nuts the depth of cut will be adjusted.

Thus, the hand-made circular saw is ready for use (video).

However, for greater convenience, you can turn it into a table saw. This will require a little more patience and available tools.

Converting a manual circular saw into a tabletop one

The first step is to turn the circular from hand tools in a tabletop, you should choose the table itself. It must be strong and stable. This is important not only for convenient work, but also for safety reasons. For example, an old kitchen table made of wood and metal might work.

Next you will need a reinforcing rod or metal pipe with a diameter of 15-22 mm. This pipe is bent (or cut and welded) in the shape of the letter “P”. Then the lower ends of this structure are bent, flattened and attached to the table using any in a convenient way- the main thing is that it stays strong and stable.

Then from two pieces hollow metal pipe The T-shaped lever is welded. Its transverse part must first be cut and bent so that it can be put on the crossbar of the frame, and then fastened with clamps. A ready-made manual circular is attached to the end of the lever itself, also with clamps.

So, the DIY desktop circular table is ready for use. If you replace the disk, it can be used for cutting metal. Unfortunately, it cannot handle thick lumber, and it is not very convenient to use for rip sawing. For these purposes, you can try turning the angle grinder into a circular saw.

Circular saw

In this case, the grinder is mounted not above the tabletop, but under it. There is no need to convert it into a manual circular saw - just replace the disk and securely fasten it under the tabletop. To do this, you can use clamps, screws or specially made fasteners.

As with a tabletop circular table, the table must be strong and stable. It is desirable that it not just stand on the floor, but be screwed to it. The tabletop should be thick and preferably covered with thin sheets of metal - for better sliding of the supplied workpieces. You can also use chipboard.

The gap in the tabletop should be the same width as that of the stop hand saw, 3-4 mm from the disk in both directions.

For more convenient work, you can equip the table with guides made of timber, screwing them onto self-tapping screws.

Important!

In conclusion, it should be recalled that the original purpose of an angle grinder is grinding and cutting hard materials. Therefore, when converting an angle grinder into a circular saw, you need to pay special attention to following points:

When using an angle grinder as desktop instrument It should be remembered that the lower edge of the disk should rotate towards the master, the upper - away from him. It is also advisable to equip your machine with a protective plexiglass screen.
Feeding of workpieces into the circular saw is done not by hand, but by other workpieces.
The rotation speed of the grinder is significantly higher than the speed of the circular saw. When installed on Cutting angle grinder wood circle (150-180 mm), it is necessary to reduce the tool speed to 4000-5000 rpm.

Otherwise, the discs will become dull almost instantly. If the angle grinder you are using does not have a regulator, you can connect a special reduction gear to it.

The decision to make a circular grinder from a small grinder is an excellent option in terms of saving Money. Enough for design effective tool no professional locksmith skills required. If you take the matter seriously, you can cope with the task using available tools and materials. Let's find out how to make a circular grinder from a grinder?

Required materials and tools

How to make a circular grinder with your own hands? To do this you will need the following tools:

actually the Bulgarian herself;
circular circle;
sheet metal (tin or galvanized);
a set of fasteners (bolts, nuts, etc.);
screwdrivers, pliers, wrenches;
electric drill with metal drills;
metal corners.

Making a sliding stop

Using a grinder requires the creation of a sliding stop. As the latter, it is most rational to use several that will be located on both sides of the saw blade. It is recommended that the lower edges of this structural element be rounded, which will not allow them to cling to surfaces that will be processed with a homemade circular saw.

The corners must be fastened at both ends. To achieve optimal clearance, washers can be placed under the heads of the fasteners.

Next, a metal clamp should be secured to the body of the angle grinder, the tie of which should be located at the bottom. A strip of metal made of tin folded several times or galvanized is threaded through here. The ends of the latter are connected to fasteners located at the ends of the previously assembled sliding stops.

Preparing the gearbox

A circular grinder requires a working gearbox. The specified mechanism is removed from the tool, after which the optimal locations for drilling holes in the metal are determined. Such openings will be required to install the axial handle of a homemade circular saw. Naturally, you can try to hold the tool using the standard side holder of an angle grinder. However, creating even cuts will become extremely problematic. As practice shows, holding a homemade tool with a rotating circular disk is beyond the capabilities of even physically trained craftsmen.

Axial handle

To create an axial handle that will allow you to hold homemade instrument in a stable position, it is best to use a metal rod or tube. Holes are drilled at the ends of the workpiece, which will serve to attach the structural element to the grinder gearbox. The prepared axial handle is attached using fasteners to the mechanical part of the tool.

Adjustment rod

In order for a homemade circular grinder to allow you to adjust the depth of the cut, it is necessary to provide a special rod in the design. In production structural element from a steel rod with a diameter of about 4-6 mm. One end of the workpiece is bent in the shape of a loop, spilled out and fixed with the front bolts of the corner stop.

A thread is created on the tail of the rod, which will subsequently fit into a special adjustment hole on the handle of the tool. Before installing the rod, one nut is placed on its thread. After the tail part of the element is threaded into the hole on the handle, the second nut is screwed on. Thanks to the tightening and loosening of these fasteners on the thread, the depth of cut is actually adjusted during the operation of the homemade circular saw.

How to make a stationary one from an angle grinder?

The main difference between the design of a hand-held and a stationary tool is the presence of a bed. The work is performed in the following sequence:

A special table is prepared, which is covered with a galvanized sheet or tin. To fix the selected material on a plane, it is enough to tighten it along the edges of the table with metal corners. The base on which the mechanical part of the tool will be installed must be as stable as possible. Otherwise, rocking will lead to inaccurate cutting of materials. In addition, table vibrations can be traumatic.
According to safety requirements, circular disk should not protrude a third of its diameter above the table plane. Therefore, to cut wooden block about 10 cm thick, you will need a cutting wheel with a size of 35 cm.
A stationary circular grinder must be made on the basis of a sufficiently powerful engine. Here you need to use a grinder engine with a power of at least 1 kW.
The basis of the adjustable stop will be metal corner 7-8 cm long. The specified element is placed on the table and fixed using bolted connections.
A stationary circular saw from a grinder involves creating a shaft. The latter is recommended to be purchased from finished form, since when turning it yourself, critical errors may occur. You should choose a shaft that contains fasteners to securely fix the circular disk.
The transmission will be a V-belt type pass.

If necessary, a circular grinder can be made with your own hands based on a more powerful engine extracted from an old one. washing machine. In general, the choice of engine here is limited only by the expected power of the future tool, which must be obtained at the output.

Safety precautions when using a homemade circular saw

Before starting up a self-made circular saw, it is worth taking measures to avoid injury. If the tool is designed as a hand tool, the trigger button should be located away from the rotating cutting blade. In the case of a stationary saw, the table on which the mechanical part is located must first be screwed to the floor.

When operating such a potentially dangerous device as a homemade circular saw, basic vigilance must be observed. First of all, you should never position yourself in line with the spinning disc. After all, the latter can jump off the shaft when reaching critical speed. Also, you should not bring your hands too close to it, which should be no closer than 20 cm from the cutting element.

Do-it-yourself manual circular grinder

YouTube video channel "Mr.10000Bees". The master has an angle grinder made in China. Despite this, it is of quite good quality, it works for one year, there are no complaints. There was a desire to make a manual circular saw from this grinder. That's what came out of it. The nozzle is secured with a clamp. Made of two parts: sole and body. Sawdust is thrown away. Two handles are made. I used it every day for a week. We cover a room in the country with clapboard. Plus I laid laminate flooring.

I made it for sawing laminated fiberboard, because it is long and difficult to cross it with a jigsaw. The jigsaw tears the edges. And the grinder lies flat due to the large number of revolutions. Almost without chips. Using this device I dug, laid out wiring and pipes. Instead of a saw blade, you can put it on the concrete and calmly select a groove. There is another device, but it does not work satisfactorily. It has a large sole and the cutting depth is not adjustable.

Let's put everything on the grinder. The cutting depth is set as needed. Maximum 35 mm. To reduce litter in the room, there is a manual cover electric jointer. The master has a manual circular saw in good quality, worked faithfully for several years. But first of all, it is bulky and heavy. Secondly, the master made a table saw from it. You can pull it out and use it, but you can’t use it with one hand.

A few words about the saw blade. The seller assured that this is a disc for an angle grinder. But it costs 9000 rpm, the grinder throws out 11000. It cuts cleanly, but the grinder disc has fewer teeth. Mostly satisfactory. The master did not risk installing this without his own equipment. It may jam or something else emergency. You can get seriously hurt. And with this device it functions normally.

Grinder powered by the car's battery.

izobreteniya.net

Step-by-step instructions on how to make a circular saw from an angle grinder

A circular saw, or more simply a “circular saw,” can be useful to any man both during major home repairs and just on the farm. And if you suddenly need it, you don’t have to run to the store to get it. You can take a grinder and, after spending a little free time, turn it into a circular saw with your own hands.

Making a circular

Step-by-step instruction

cutting wheel for wood (150-180 mm);
electric drill;
reinforcing bars;
metal clamps;
bolts, nuts, washers.

Making a sliding stop

Then a clamp is put on the tool body with the tie down. The sliding stop must be firmly fixed to the screed. You can use galvanized tape.

Preparing the gearbox and making the axial handle

It is quite difficult to make a quality cut using a standard angle grinder handle. Therefore, it is recommended to make a handle with your own hands and then attach it to the grinder.

Making an adjusting rod

Before you start using a homemade circular saw, you should equip it with a cut depth regulator. The so-called adjusting rod.

A piece of reinforcing rod with a diameter of 5 mm is used as an adjusting rod. One of the ends of the rod is bent and flattened, then fixed with the front bolts of the corner stop.

By loosening and tightening these nuts the depth of cut will be adjusted.

Thus, the hand-made circular saw is ready for use (video).

However, for greater convenience, you can turn it into a table saw. This will require a little more patience and available tools.

Converting a manual circular saw into a tabletop one

The first step in converting a circular saw from a hand tool into a table tool is to choose the table itself. It must be strong and stable. This is important not only for convenient work, but also for safety reasons. For example, an old kitchen table made of wood and metal might work.

Next you will need a reinforcing rod or metal pipe with a diameter of 15-22 mm. This pipe is bent (or cut and welded) in the shape of the letter “P”. Then the lower ends of this structure are bent, flattened and attached to the table in any convenient way - the main thing is that it is held firmly and steadily.

The two pieces of hollow metal pipe are then welded together to form a T-arm. Its transverse part must first be cut and bent so that it can be put on the crossbar of the frame, and then fastened with clamps. A ready-made manual circular is attached to the end of the lever itself, also with clamps.

So, the DIY desktop circular table is ready for use. If you replace the disk, it can be used for cutting metal. Unfortunately, it cannot handle thick lumber, and it is not very convenient to use for longitudinal sawing. For these purposes, you can try turning the angle grinder into a circular saw.

Circular saw

The width of the gap in the tabletop should be, like that of the hand saw stop, 3-4 mm from the blade in both directions.

For more convenient work, you can equip the table with guides made of timber, screwing them onto self-tapping screws.

Important!

When using a grinder as a tabletop tool, remember that the lower edge of the disk should rotate towards the master, and the upper edge - away from him. It is also advisable to equip your machine with a protective plexiglass screen.
Feeding of workpieces into the circular saw is done not by hand, but by other workpieces.
The rotation speed of the grinder is significantly higher than the speed of the circular saw. When installing a cutting wheel for wood (150-180 mm) on an angle grinder, it is necessary to reduce the tool speed to 4000-5000 rpm.

Otherwise, the discs will become dull almost instantly. If the angle grinder you are using does not have a regulator, you can connect a special reduction gear to it.

metall.trubygid.ru

How to make a reliable circular saw yourself

Any thing made with your own hands will serve much better than a factory-made product. Every master should know how to make a circular saw with his own hands, because... This will not only allow you to save significantly, but also develop a tool to suit your individual needs.

A homemade circular saw is indispensable for construction and furnishings. country house. It can be used to process large volumes of wood quickly and easily.

Conversion of the grinder

Tools and materials:

Bulgarian;
drill;
clamps;
screws or bolts;
gearbox

The device of a homemade circular saw.

The easiest option is to remake the grinder yourself, but you need to remember that this tool has fairly high power ratings, which can make the work more difficult. An option with a 150 or 180 mm disc is used, and the speed must be low (4000-5000 rpm), because otherwise, the cutter will become dull at an unprecedented speed. 3-flute cutters are usually used for such modifications.

Options for attaching the grinder to the tabletop:

On the clamps. Everything is simple here - 2 clamps tightly attract the tool to the selected working surface. It is quite easy to install and just as easy to dismantle, moreover, this is the only option when, after dismantling, you can continue to use the tool for its intended purpose.
Self-tapping screws. Using a drill, 3 holes are made in the body and additional handle, into which self-tapping screws are then screwed and attached to the working surface. Similar option It is also possible with bolts and nuts, which is much more reliable.
Using additional details. You'll have to contact a mechanic to grind out the connecting piece between the countertop and the grinder. To attach it you will have to remove protective cover, but after fastening the tool will not move anywhere. This option the most reliable, albeit the most inconvenient.

Layout diagram of the elements of a homemade circular saw.

It often happens that you don’t have a low-speed grinder at hand, so you can use a reduction gearbox. To fasten working tools, screws or bolts are used, depending on the desire to maintain the quality of the tools.

Only in the first indicated case, after achieving the goal, can the tool be dismantled and used according to direct purpose, and then only if it was used as a circular saw for a very short time. In all other cases, this option is not even worth considering, because The chance of getting injured during further work is 9 to 10.

Situations are different, so the protective casing is often removed. There is no need to install it back, but as a replacement it is better to use a steel angle welded to the working surface. This move will be much more reliable than factory plastic.

Development based on asynchronous motor

Tools and materials:

asynchronous motor;
adapter;
gearbox;
support holder;
bolts with nuts;
steel corner;
welding machine.

The power of the electric motor for the circular saw must be at least 1.5 kW.

This option will be much cheaper and more reliable, but there is much more work to be done. Instead of asynchronous motors collectors cannot be used, because the latter provide much greater speed with less power, which is optimal for grinders.

To begin with, select a motor whose power should be at least 1 kW, and preferably 1.5-2 kW, at 4000-4500 rpm. This option produces a little more power than required, so there will be no difficulties when working with it, and if it lasts 10 years, it will be very little.

If you manage to find the right motor, then you need to attach it to the working surface, connect the adapter to the power supply, and screw the support holder for the cutter onto the shaft. But most often, more revving analogues are purchased, for which you have to buy an additional reduction gearbox. To fasten them together, it is enough to use bolts and nuts, because the holes are almost always opposite. Otherwise, you will have to use metal screws and attach the engine this way.

The working surface should, if possible, be metal; in any case, it should be very reliable, because... The power of the resulting tool is quite large, and during operation it may begin to vibrate. As protection, a regular corner or steel profile is used, which is welded onto the working surface slightly away from the cutter. It is located below the tabletop, because the upper part cannot be damaged. Special attention should be given to the weld, which should not crack even from a strong impact.

https://moisaiding.ru/youtu.be/csk9u_YVNzM

Even with a perfectly designed tool, an annoying mistake often occurs - its incorrect location. When rotating, the lower edge of the disk should rotate towards the master, while the upper, accordingly, away from him. If you do not do this, you will very quickly have to make friends with the ophthalmologist, even if you use safety glasses. And when correct execution Work boots can always be cleaned with any brush after finishing work.

Brief afterword

It often happens that a homemade working tool has to be replaced with a factory one. The reasons for this may be different, but the circular remains ownerless, so it needs to be repurposed.

The angle grinder cannot be restored back, and the motor may rust from inactivity, so the best option would be Miter saw.

It is not needed very often for housework, but it costs a truly enormous amount of money. To make a circular yourself, you don’t need a lot of effort and money, but you need some patience. A well-made tool will serve for many more years, and it can be customized directly to the needs of the owner, which is impossible with any factory analogue.

The circular saw is widely used by home craftsmen to carry out various types works Making a manual circular saw from an angle grinder is a simple process that does not require special skills. It can be done using available materials. But it is important to consider that such a tool cannot completely replace a professional device.

Types of circular saws

Circular grinders come in two main types.

Mini-circular (rotorizer)

This is a modern unit with a narrow scope of application, capable of adequately competing with stationary equipment. It is used for periodic home operations and in private workshops when assembling furniture.

Stationary

This device is necessary for carrying out a significant amount of work: sawing, grinding, drilling, planing, sharpening tools. Compared to a mini-circular, the stationary unit is more massive and reliable in design.

What is needed for making

A circular grinder is made using the following means:

Bulgarian;

sheet metal;

screwdriver, wrench and pliers;

set of fastening elements;

metal corner

disc with teeth;

electric drill.

Video: The entire process of making a circular saw from an angle grinder

Circular saw design

The design of a homemade circular saw includes the following main elements:

Engine

The optimal choice of drive for a machine is the engine Bulgarians with a power of about 1 kW. The angle grinder comes with clamps that allow you to secure it to the frame.

The engine of the tool has high speeds and can operate for a long time without interruption. It is recommended to choose an angle grinder that has high power, a durable gearbox and is equipped with a soft start function.

Sliding stop

It consists of several metal corners located on both sides of the saw blade. The lower edges of the sliding fence are rounded to improve the ease of use of the saw.

Axial handle

It ensures a stable position of the circular saw. Made from metal rod. There are holes at its ends. The handle is attached to the circular using fasteners.

Adjustment rod

Allows you to adjust the cutting depth. It is executed from steel bar with a diameter of 5-6 mm. One end of the workpiece is bent into a loop shape and secured with front bolts. The shank of the rod has a thread into which the nuts are screwed.

Gearbox

For efficient work A circular saw uses a system of pulleys and a belt. It is necessary to ensure disk rotation speedat approximately 6,500-7,200 rpm. You should select two disks with different diameters: for one it is equal to 0.7 of the diameter of the other.

If a belt drive is used, it is recommended to provide a proper tension system: the angle grinder is rigidly attached to the frame, and the working surface with the shaft is fixed after installing the belt.

Making a circular saw

A circular grinder is made with your own hands in several stages:

Table preparation

It is necessary to ensure the stability of the table, eliminating possible rocking. As a frame, you can choose a metal profile structure. To make the table surface, you can choose iron sheet, plywood, glass, chipboard. A slot must be provided for the cutting disc.

Installing an angle grinder

The grinder should be fixed to the plank under the tabletop using clamps. Threaded connections must be secured using clamps. When placing the disk, it is necessary to ensure that a significant part of it protrudes above the tabletop. A protective canopy is installed over the disk.

Installing the stop bar

A metal corner is used to create a thrust bar. It is recommended to install it on special plywood. The plate with the strip must be secured to the tabletop using clamps.

Electrical wiring

It is necessary to remove the wires and connect them to the extension cord. You can secure the wires under the tabletop using a stapler.

Disk check

You need to check with your hand how easily the disk turns. It is worth additionally checking its progress when relieved tension. To control the efficiency, a short-term start of the circular is performed.

Starting the device

The tool is ready for use. The engine temperature should be checked from time to time to check for overheating. Long-term loads on the motor and gearbox of the angle grinder are unacceptable.

Safety precautions

When working with a circular saw, certain safety rules must be followed:

Before starting the unit, certain precautions must be taken to prevent the possibility of injury. When using a hand tool, you need to place the start button away from the cutting element. If a stationary structure is used, then the table with the mechanical part is screwed to the floor in advance.

A circular saw is a potentially dangerous device, so extreme care is required when working with it. First of all, it is forbidden to stand in line with the rotating cutting element. In addition, it is highly not recommended to keep your hands near him at a distance closer than 20 cm.

It is highly recommended to feed the wood to the circular saw blade using special blocks. Otherwise, there is a risk of injuring your hands if the material suddenly slips.

If all stages of work are followed correctly, making a circular saw yourself is not a difficult task. This way you can save a lot of money and time. Such a tool will be useful when performing various operations around the house.