Bulgarian is a useful and versatile tool. It is suitable for cutting metal, stone, tiles and grinding surfaces. However, sometimes there are situations in which a stationary machine is more suitable for these jobs. It is good that using certain devices for the grinder, it can be turned into a cutting machine.
Finding a ready-made machine that meets your needs in stores is not difficult. However, the probability of finding a structure that firmly fixes the grinder and does not dangle during operation is not great, since they are all made of duralumin. For this reason, many people prefer to make various devices for the grinder with their own hands.
When performing construction and installation work a wide variety of tools are used. The most commonly used grinder. The main task for which it is used: metal cutting; processing of building materials.
If you also use nozzles with this tool, you can expand the number of options for its use. In particular, using this tool with nozzles, you can perform high-quality grinding workpiece bases. They will be cleaned of foreign inclusions. Nozzles for grinders can be purchased at the store. But if you do not have the desire to pay money, then you can make them yourself.
In some cases, this tool is used as a wall chaser. With his help grooves are created for laying pipes and electrical wires. To use the grinder in this capacity, you will have to perform some manipulations and increase the standard width of the protective cover. In addition, you will need to make a plate for support.
Such a tool can be used with one disk or several at once. If the grinder is used with two discs, then some changes must be made to the mount of this tool. After that, the grinder can be used in standard mode.
It often happens that during repair work and there is a need to clean the base of parts that are difficult to access. In such cases, the craftsmen most often resort to using a home-made fixture for the angle grinder in the form of a special nozzle, thanks to which a small disk can be taken out beyond the dimensions of the grinder.
In this case, the rotation will be transmitted using special belt drive from the main drive. Using this design, cutting of materials cannot be performed. However, scale can be removed from the surface of materials without problems. It often occurs on the surface of welds.
At the moment, the market offers a large number of nozzles for a tool such as a grinder. Their use allows expand application options this tool. If we talk about the most commonly used attachments for grinders, we can distinguish the following:
- a device for sanding the base and removing the paint layer from the surfaces of the materials;
- beds;
- protractors.
Materials and tools to make nozzles for grinders
When it becomes necessary to use a grinder for specific tasks, in this case, many craftsmen opt for ready-made nozzles. They can be easily purchased at a hardware store.
The cost of devices is not very high, so everyone can afford them. With the search for these nozzles, there are no difficulties either. However, despite all this, many people still decide to make nozzles for the grinder with their own hands.
If you decide to make nozzles for this tool yourself, then before starting work, you need to prepare the following tools:
- An electric drill, it is advisable to buy a set of drills in addition to it;
- It is desirable to choose discs with a diameter of 125 mm.
- Wooden bars.
- Metal corner.
- Plate of duralumin steel.
- Self-tapping screws.
Work technology
Before starting work, it is necessary to cut a plate from the metal. After that, you need to make a corner out of it. In order to accomplish what you set out to do, you must first triangle cut in the workpiece shelf. And when this is done, the workpiece must be bent at a right angle.
Further, in the design of the plate it follows drill six holes. The diameter of each of them should be 4 mm. Subsequently, it is in these holes that self-tapping screws will be installed. With their help, it will be possible to fix the handle, corners and timber. All holes must have special recesses for the screw heads.
To securely fasten the beam handle, a few self-tapping screws are enough. Fasteners used during this work should have dimensions of 3x35 mm. This will allow you to get an L-shaped part.
After that, all the elements are combined into a single structure together with the plate. The created fixture for the tool must be fixed with 3x20 mm self-tapping screws.
So, the basis of the future design is made. Next, you will need to do installation of metal corners. You should have several of these items available. They must have the following dimensions:
- 75x30x55 mm;
- 45x60x60 mm.
Please note that the first corner must be extended to 60 degrees. If this is not done, then it will not work to achieve its main goal - to fix the manufactured structure on the grinder. When setting metal corners is completed, the instrument itself is fastened directly to them.
To connect the tool and structural elements, a separate handle is used on one side, and bolts with nuts, on the other hand. The latter are necessary so that during the work there is no unscrewing of the screw of the structure.
If desired, you can refuse to mount the nut on the handle, since it will be held by the hand of the master during operation. At this point, the work on creating a structure for cutting can be considered completed.
How to make a frame for a grinder
Often grinders are used together with a bed. They are used mainly to ensure that the master performs certain work on cutting materials and workpieces with less physical effort.
It is obvious to everyone that it is extremely difficult to hold a tool that has a lot of weight for several hours. Therefore, to facilitate their work during the operation, many masters manufacture special equipment which are called beds. When the grinder is equipped with such a device, then cutting work can be done using only one hand.
To make a bed, you first need make a wooden box. You can get by with only one side on which the tool will be fixed. All other walls can be removed, and legs of a special design can be attached instead.
But in order to achieve the effectiveness of using a grinder with such a device, it is necessary to make some changes to its design.
First of all, you need to do dismantling the casing of the angle grinder. After that, the disc must be put on the tool. When this action is completed, it must be pressed against the side wall of the fixture.
It is necessary to put a mark where the gap was made for the stroke of the nozzle or disk. Its width should not be too large, otherwise foreign objects during work, they can get inside the structure.
If desired, the gap can be increased. The need for this arises in cases where it is necessary to replace nozzles without completely disassembling the entire structure. Samples of wooden blocks can be used as supporting elements. After that, you can begin to work on sawing blanks.
Protractor for grinder
When conducting construction and installation work, an important device for an angle grinder is a protractor. It is especially indispensable when working on processing or cutting metal profiles.
By using these devices, you can easily calculate cutting angles blanks. And this has a positive effect on the speed and quality of work performed. In addition, such a device is suitable for cutting metal profiles.
- The design of this type is widely in demand in the processing of wall and floor tiles.
- They are also used in cutting and processing floor coverings and skirting boards.
Having made a protractor for a grinder with your own hands, you will no longer need to purchase special tools, which are often expensive and have large dimensions. A homemade protractor is not suitable for industrial use, but for home use it will be an excellent replacement for store fixtures.
The principle of operation of the design of a homemade protractor
The first thing to do - install guide rail, equipped with a special overlay, on the tile. A similar overlay is used in order to prevent slipping of the workpiece to be fixed. Therefore, thanks to it, the displacement of the element will be excluded.
Then you need to firmly press the workpiece to the shelves of the corner. After that, the user must set the desired cutting angle.
Next, you can proceed to cutting the material. When performing this action, it must be taken into account that when cutting, it is necessary to press lightly on the disc. Serious physical effort is not required.
A homemade protractor for a grinder has a design consisting of the following elements:
- Corner.
- Loops.
- Bolt used for fixing.
Note that it is quite difficult to make such elements with your own hands. Therefore, if you are unsure that you will cope with such a task, then it is better buy in the store ready models of protractors.
The grinder is a fairly popular tool for builders and repair specialists. It can be used to cut various materials And process workpieces and parts. However, sometimes specific operations are required. Therefore, experts acquire special nozzles for the grinder. You can easily find them in stores.
The use of such devices allows you to expand the number of options for using this tool. However, it is not always necessary to buy them in hardware stores. If you wish, you can make them yourself. To do this, you just need to have free time and know how to properly make nozzles for grinders.
The well-known angle grinder, with its cutting, grinding and cleaning capabilities, has proved capable of several more functions. Expanding the functionality requires doing some work with your own hands in order to get the tools you need for the job.
This attachment is a small machine that can be used to cut easily, safely and very accurately. metal pipes, profiles or rods. It consists of a base or a small table attached to the ground or to a locksmith's table.
The machine is assembled in a simple sequence:
- install a hinge on the base;
- we weld the carrier pipe to the hinge;
- we attach to the pipe P - a figurative plate for fastening the grinder;
- we put a rubber handle on the carrier pipe;
- install the disk and check its position.
As a result of simple work, we got a machine or stand for a grinder. Now the angle grinder can rise and fall on the hinge on the part installed for cutting. In order for the grinder to rise without loads, we install a spring on the pipe.
Two fixing corners must be installed on the table. At the base of one corner, we make a groove for the bolt around the circumference. It will be needed when a pipe or profile needs to be cut at a certain angle. Then we install this corner with a slot at the same angle to the plane of the cutting disc of the grinder.
Parallel to the corner with an arc slot, we install a corner that can be moved to the part to fix it on the table. The pipe or profile will simply be nested between two corners. This is enough to perform a fast and accurate cut.
By installing a supporting transverse metal bar on the machine table, you can clean the material with a steel brush mounted on the grinder shaft.
Simple cutting machine + (Video)
A cutting machine based on an angle grinder can be made by hand in one day. For the machine, it is necessary to choose a frame - a metal base plate. Attach a hinge to it. Weld a supporting frame with a plate for attaching the grinder to the hinge.
Any suitable part can be used as a hinge. In this case, the hinge is made from the swivel joints of a passenger car. The hinges have already served their time, but they approached the machine very well.
Do-it-yourself wall chaser from a grinder + (Video)
A strobe is a groove that must be cut in the wall for laying electric wire or cable. The complexity of this work lies in the fact that the groove must be of constant width and depth. Then the wire will be laid evenly and less mortar will be required for laying.
A wall chaser is rarely used in practice, so it will be expensive to buy it for a home. But it can be made on the basis of an angle grinder - our favorite grinder.
The main task is to install two diamond discs on the grinder shaft with a distance of at least 1 cm:
- install the first disk and fix it with a nut;
- install the second disk and fix it with a nut;
- measure the resulting distance between the disks;
- install protection on the grinder;
- checking the work.
But, if for some reason it is not possible to install two disks on the shaft, the strobe can also be cut using the usual method with one installed disk. You just have to cut the second parallel line.
Work with a wall chaser is carried out indoors. This creates a huge amount of dust. Not even a respirator can save her. To eliminate this negative phenomenon, it is necessary to make a protective casing that would cover both disks and have a pipe on top for connecting to a vacuum cleaner. A similar device is on electric jigsaws for collecting small sawdust.
Sometimes to this casing lovers rational use tools fit 2 or 4 rotating rollers. When the wall chaser moves along the wall surface, it will move on rollers, without creating additional loads on the hands.
To manufacture a tool for a wide groove, it is necessary to make special bushings for mounting discs to the desired width. With such a wall chaser, it will be possible to make grooves for laying pipes.
But the protective cover will also need to be made wider. On the casing of the wall chaser for both wires and pipes, it is necessary to install a screw for adjusting the immersion of the cutting tool into the wall. In this case, the casing will consist of two parts connected by a hinge and an immersion adjustment unit.
Milling cutter from grinder + (Video)
Sometimes it becomes necessary to mill a hole or a surface, but there is no familiar milling machine, and there is nowhere to look. But there is an angle grinder - a grinder. This is the solution to the problem. We choose a machine from two options - a movable machine and a movable table.
In the first case, we fix the workpiece or material to be milled, and the grinder is attached in a vertical plane to the frame. On the frame, it is possible to move the plate to which the angle grinder is attached to the left - right and forward - back. In other words, we can move the grinder relative to the workpiece.
In another version, the grinder is fixed rigidly, and the workpiece moves by analogy to the left - to the right and forward - back. These are the main directions for milling. For milling along the up and down axes, it will not be difficult to supplement the adaptor.
Having chosen the option of the machine, you can begin to implement. The only place that will require the involvement of a turner is the cutter holder. It is machined from a hexagon of at least 16 mm, because the grinder thread is 14 mm. Collet type holder. It is easy to manufacture and does not have large beats. A conventional cam chuck does worse.
The advantage of such a machine, as well as all machines based on the grinder, is that they are easily transformed back into the grinder. As a kind of milling cutter from a grinder, you can make a drill.
Pendulum Saw + (Video)
It is not difficult to make tools for a grinder with your own hands. It doesn't even need blueprints. It is enough to know the principle that is embedded in a particular machine. A pendulum saw based on a grinder is no exception. This is the same cutting machine, but its weight is distributed almost in half.
It is somewhat similar to a children's swing. A frame is located on the movable sleeve, and an angular Sander. Any load in combination with a return spring can serve as a counterweight.
Bulgarian is an indispensable tool for construction, installation and other work. The main task of this design is to cut metal or stones at high speed. If you use special nozzles, you can carefully sand the base of the workpiece, clean it and remove various contaminants. However, in order to be able to use this tool in other areas, you will need to buy or make home-made devices for the grinder.
In some cases, the grinder is used as a wall chaser. To do this, you will need to increase the width of the protective casing, and then make a plate for the support. Such a tool can be used both in a set with one disk, and with several. In the latter case, it will be necessary to improve the attachment point. If necessary, the upgraded cover with the supporting element can be easily removed, and then use the angle grinder in normal mode.
It happens that you need to clean up hard-to-reach grounds. Masters for such purposes use a special nozzle, which is able to take out a disk of small diameter beyond the dimensions of the grinder. The rotation in this case will be transmitted from the main drive using a special belt drive (rubber belts are used). Cutting using a similar design will not work, but you can easily remove scale from the weld seam.
To date, there are quite a large number of different nozzles with which you can expand the scope of this tool. Among them, the main ones are the following:
- devices for sanding the bases and removing the old layer of paint;
- beds;
- protractors.
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What do you need to make homemade tools for grinders?
Most owners prefer to purchase ready-made nozzles in building supermarkets. Such elements are not too expensive, and there should not be any problems with the search for devices. However, some people prefer to make similar parts for the grinder with their own hands.
In order to make devices of this type, it will be necessary to purchase items such as:
- electric drill with a small number of different drills;
- screwdriver;
- hacksaw for working with wood;
- discs for grinders, the diameter of which is 125 mm;
- wooden bars;
- metal corner;
- duralumin steel plate;
- self-tapping screws.
First of all, you need to cut a plate of metal. Next, make a corner out of it. To do this, you need to make a triangle-shaped cutout in the workpiece shelf and bend it at a right angle. In the design of a metal plate, you will need to drill 6 holes with a diameter of 4 mm. Self-tapping screws will be installed in these holes, which can fix the handle, corners and a wooden beam. All holes must have special recesses for the screw heads.
The handle is attached to the bar with several screws. The dimensions of the elements for fasteners should be 3x35 mm. As a result, it will be possible to obtain a part in the shape of the letter G. All elements, together with the plate, are assembled into a single structure. Attachments for the grinder must be fixed with several 3x20 mm self-tapping screws.
At this stage, the basis of the structure is made. Next, you need to install metal corners. There should be several similar elements, with dimensions of 75x30x55 and 45x60x60 mm. It should be noted that the first corner must be straightened from 90 ° to 60 °. If this is not done, then it will not work to fix the manufactured structure on the grinder. After the metal corners are installed, the tool itself will need to be fixed on them. It is connected to the structure with a separate handle on one side, and on the other with a bolt and nut. The latter will be needed so that the screw does not unscrew from the structure in the process of cutting the material. You can not mount the nut on the handle, as it will be held by hand. At this stage, the design for cutting is made.
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How to make a frame for a grinder with your own hands?
Such devices for angle grinders are used in order to be able to facilitate the efforts made by the user to work on cutting workpieces. It should be understood that holding a tool with a large weight in your hands for several hours is quite difficult. Therefore, most craftsmen want to make a special fixture for a grinder, which is called a bed. With the help of such structures, it is possible to carry out work on cutting metal blanks with one hand.
First of all, you need to make a box of wood. You can make only one side, so that it is possible to fix the grinder. All other walls must be removed, and special legs should be attached in their place.
However, for such a tool to be effective, the first step is to adapt it to existing conditions. To do this, you will need to dismantle the casing of the angle grinder for protection. Next, put a disc on the tool. When it is pressed against the side wall of the fixture, you need to make a mark where the gap was made for the stroke of the nozzle or disk. It should not be too wide, otherwise foreign elements may get inside the structure. However, it is worth knowing that the gap can be expanded. This should be done in cases where there is a need to replace nozzles without completely disassembling the entire structure. Several wooden bars can be used as supporting elements. After that, you can start sawing various workpieces.
Without an angle grinder - a grinder - you can not do it either in the garage or in a private courtyard. The unit allows you to cut a metal profile, clean a weld or remove rust from the surface of workpieces and parts, has a low price and incredible ease of use. The grinder also has disadvantages, one of which is the unstable quality of the cut and the danger of the cutting disc being skewed during use. You can eliminate annoying shortcomings by making a special frame with your own hands, which will turn a hand tool into a real cutting machine. This will increase the speed of work and achieve accuracy that can only be obtained on industrial equipment.
Scope of cutting machines
Cutting disc machines are widely used in metalworking, mechanical engineering, woodworking and furniture industries. The units have found their application in household: They are used as a handy tool for various jobs in the workshop and garage. The cutting machine is convenient to use for solving a number of tasks:
The advantages of disc cutting machines include convenience and ease of use, high cutting speed and accuracy, the ability to replace the cutting disc in a matter of minutes.
Due to the relatively low cost, universal units have a fast self-sufficiency, so it is beneficial to use them in small industries and small workshops.
In the household, a cutting machine is used irregularly, so buying a factory-made tool is irrational. It is better to make a special bed for an angle grinder. This will increase the versatility of the grinder, turning it into a small-sized cutting machine.
Types of devices, their advantages and disadvantages
There are two types of designs of cutting machines, differing in the location of the grinder, which can be made at home.
The first installation is a frame with a rigidly fixed corner grinder. On the working surface, only the cutting disc is visible, which freely passes into the slot of the table. Cutting a metal profile or sheet in this case is completely identical to sawing wooden blanks using circular saw. Despite the very simple design, such a scheme is not particularly popular. Those who made such a device note the inconvenience in use due to the need to move the workpiece. This significantly reduces the accuracy of the work and makes the process unsafe. The only advantage of a machine with a bottom angle grinder is the ability to quickly cut thin metal sheets.
A cutting machine with a lower angle grinder can be used both for cutting metal and as a circular saw
The second scheme, in which the part remains stationary, and the cutting wheel itself moves, is more convenient. The so-called pendulum saw, located above the tabletop, allows you to cut the workpiece exactly at the required angle, while it becomes possible to make right amount the same type of details. Due to the location of the grinder on top, cutting workpieces does not require effort, and the operation of the unit becomes simple and safe. The undoubted advantages of the design include the ability to quickly dismantle the angle grinder for traditional use. As for the disadvantages of this method, the weak link can be considered a swivel, which complicates the design of the machine.
The machine for cutting metal with the top location of the grinder has a more convenient design and makes it possible to cut blanks at the desired angle
The device of a pendulum saw from a grinder
A pendulum saw from a grinder is available for assembly at home, does not require expensive materials and special skills. The cutting machine has a simple design and consists of several components:
- bed;
- pendulum;
- fastening under the angle grinder.
The bed is a steel frame welded from shaped pipes, with a platform made of sheet metal not less than 3 mm thick. A bracket is attached to this plate, on which the hinge of the pendulum saw is mounted, as well as an emphasis to hold the workpiece. By the way, there can be several such stops: it is convenient when one element allows you to make a perpendicular cut, and the other makes it possible to cut the material at the required angle. The most perfect stop is a rotary device with a protractor, with the help of which any angle between the part and the cutting disc is set. An important detail: at the point where the saw touches the platform, a cut is made in the tabletop, its width should be equal to twice the thickness of the cutting circle, and the length should correspond to the diameter.
The standard design consists of a bed, a pendulum and a mount for an angle grinder
The pendulum of the cutting machine is a T-shaped piece made of a rectangular metal profile. On the one hand, this assembly is attached by a movable joint to the frame bracket, and on the other hand, a mount for a grinder is attached to it. The mobility of the hinge of the pendulum saw is provided by rolling bearings or bushings, and the return of the tool to its original position is provided by a flexible element (rubber band or spring).
The grinder mount is a console with one or two brackets connected to the pendulum. An angle grinder is attached to one of them with bolts. To do this, threaded holes are provided in the body of its gearbox for attaching the handle. The second bracket is a conventional clamp (ladder) that holds the cutting tool by the body.
Convenience in the operation of equipment can be significantly increased by connecting the angle grinder to a foot switch-pedal. Of course, in this case, the angle grinder start lever is brought into working position and fixed with a special button.
Necessary tools and materials
When starting to manufacture a cutting machine, it should be understood that the accuracy of its work is directly related to the stability of the structure. Therefore, the choice of a material of a certain thickness is dictated not so much by the requirements for the strength of the hull, but by the need for its rigidity.
Before starting work, you need to prepare:
- profile pipe "square" (25x25x2.5 mm);
- profile pipe "rectangle" (40x20x2.5 mm);
- metal sheet 4–5 mm thick;
- ball bearings No. 202, 203 or 204 - 2 pcs.;
- a calibrated bar with a thickness equal to the diameter of the hole in the inner race of the bearing (up to 100 mm);
- bar with a diameter of 8–10 mm;
- metal tire (20x4 mm);
- bolts and nuts with M8 or M thread.
Of the tools you will need:
- Angle Grinder;
- drill or drilling machine, set of drills;
- a set of dies for cutting metric threads;
- wrenches;
- welding machine.
The presence of electric welding is desirable, but not necessary - all connections can be made on threaded connections. However, it should be understood that this method reduces the reliability and strength of the structure.
For the manufacture of the machine, it is better to choose a grinder from a well-known manufacturer
The main unit of the cutting machine is the angle grinder. It is not recommended to use a "small" grinder, designed for cutting discs with a diameter of up to 125 mm with a power of up to 500-600 watts. Remember that the larger the diameter of the cutting wheel, the more versatile and reliable the machine will be.
The careful choice of power tools is also due to the wide variety of designs of angle grinders on the market. Since such equipment is not unified, the cutting machine is built for a specific model and size of the angle grinder. If the equipment is unreliable, then in case of failure it will be difficult to install another angle grinder in its place without the need to remake the mounts and the pendulum. That is why it is better to choose products from trusted manufacturers - Makita, Bosch and so on.
Making a cutting machine with your own hands
Preparatory stage
Work on a cutting machine begins with design. Impossible to give exact dimensions device, since the design depends on the model and size of a particular angle grinder. Nevertheless, according to the presented drawings, you can get an idea of the dimensions and structure of the equipment.
A project sketch begins with a hull drawing. You may not need a frame, but a separate platform that can be attached to locksmith's workbench. In any case, the dimensions of the device and the location on the body of the main components are determined. Next, the angle grinder and the center distances of the mounting holes on the body of its gearbox are measured. Based on these indicators, a drawing is drawn up for attaching the grinder to the pendulum. After that, the rotary assembly itself is designed. The smaller the distance from the swivel to the cutting wheel, the stiffer and more accurate the machine will be. In other words, the length of the pendulum should be as short as possible.
At the last stage of the design, they calculate how much and what material will be needed.
Photo gallery: Drawings for the manufacture of a homemade cutting machine
Drawing of a frame-type cutting machine. Frame dimensions are selected based on the dimensions of the tool used.
Drawing cutting machine pendulum type. On the left are the dimensions of the base. The design features of the pendulum are marked on the right.
Step-by-step instruction
- In accordance with the drawing, the blanks of the future machine are cut. Profile pipes are used for the frame and pendulum, and a metal profile, a metal tire and a steel bar are used for cantilever mounting. If the design provides for a carrier platform, then sheet steel with a thickness of 4–5 mm is cut to size.
- To the pendulum lever, which is a segment profile pipe, weld the transverse axis (shaft) for the swivel. In this case, it is important to ensure the perpendicularity of the shaft attachment to the pendulum.
After cutting the material, a shaft is welded to the pendulum arm
- A U-shaped bracket is bent from a steel tire, holes for bolts are drilled in its sides, with the help of which the gearbox housing of the angle grinder is attached.
For fastening to the threaded holes on the angle grinder gearbox housing, you will need a U-shaped bracket
- An enveloping angle grinder U-shaped clamp (ladder) and a clamping bar for fixing the tool body to the pendulum are made from a steel bar. The latter is a metal plate 15–20 mm longer than the clamp width. The threaded ends of the stepladder freely enter the holes on the edges of the pressure plate, and fixation is carried out with nuts with a suitable thread.
- Trying on a U-shaped bracket and a clamp to the grinder, these parts are mounted on the console with a welding or threaded connection.
This is how the console for attaching the angle grinder to the pendulum arm assembly with a U-shaped bracket and clamp looks like
- The bearings that will ensure the rotation of the pendulum are pressed into the supports. As the latter, you can use both ready-made factory bearing units and pieces of steel pipe (15–20 mm) with a diameter equal to the outer race of the bearing.
- Bearing units are pressed onto the shaft from both sides. It is important that the connection is tight - this will eliminate unwanted longitudinal and transverse displacements. If the resulting connection is weakened for some reason, you can use the proven method - tin the axis with a soldering iron, applying a thin layer of tin to its surface (you will need soldering acid as a flux).
- At a distance of 50–60 mm from the edge of the platform, a pendulum assembly with support nodes is welded. It is important not to overheat the bearings, so these parts are wrapped in wet rags or constantly poured with water to cool.
The pendulum arm assembly with bearing assemblies is welded to the platform at a distance of 50–60 mm from the edge
- A console with an installed clamp and a U-shaped angle grinder is welded onto the pendulum lever. The position of the angle grinder is chosen based on personal preferences. Exist different opinions about how to fasten the grinder ("from yourself" or "on yourself"). Professional locksmiths work with the tool, orienting the sheaf of sparks towards themselves, arguing that if the grinder falls out of their hands for any reason, the tool will fly off in the opposite direction. Hobbyists most often work with medium or small grinders, so they prefer to have the disc rotate "from itself", as this allows control of the cut and prevents damage to clothing. When fixing the tool, do not forget to place the protective cover correctly - it should protect the worker in the event of a disc rupture.
- On the assembled machine attach an angle grinder. Focusing on the weight of the tool, select and install the return spring. To do this, loops are welded to the frame and the pendulum or holes are drilled with a diameter of up to 5 mm.
In order not to damage the plastic body of the grinder, strips of rubber are laid between it and the brackets
- Perform a trial run grinder. First, check the operation of the machine in idle mode. At the same time, attention is paid to vibrations and backlashes of the working parts of the equipment, which, if necessary, are eliminated.
- Using a cutting wheel of maximum thickness, a groove is cut in the machine platform for the cutting disc. If necessary, the grinder is removed and the slot is expanded to the desired size.
It looks like an improved emphasis with a clamping device
At the last stage, stops for blanks are attached to the platform. Most often, two strips are provided (for cutting at an angle of 45 and 90 degrees), fixing them with a welded or threaded connection.
Often, fixtures for holding the workpiece are equipped with a measuring tool. By fixing a metal ruler on the stop bar with a reference point from the grinder disk, you can quickly and accurately cut off the part of the required length. Also, if desired, you can install protractors, a vice and clamps various designs. Such additional details allow you to make, for example, a full cut or groove in the workpiece at any angle, free your hands, and so on.
Do not forget to paint the fixture after all finishing activities have been carried out. Even a thin layer of enamel will protect the equipment from rust and make it appearance more aesthetic.
Video: How to make a cutting machine from a grinder with your own hands
Safety
In the process of working on a cutting machine (as well as during its operation in the future), safety precautions should be strictly observed. Be sure to use a protective mask or goggles, and position the angle grinder so that the sheaf of sparks is directed away from you. The high fire hazard of the equipment requires work in a ventilated area and away from fuels and lubricants. During welding activities, a protective mask, thick leather gloves, closed shoes and protective overalls should also be used.
When working with a cut-off machine, do not try to speed up the process by applying excessive pressure to the tool. At best, such a rush can result in a torn disc and a jammed clamp nut.
When using a welding machine, ensure good grounding and avoid operating the equipment with exposed cable sections. Remember that outdoor welding in rainy weather is prohibited. As for the operation of the cutting machine, when arranging a button to turn it on, protect yourself by installing a simple decoupling with a 12-volt power relay. To do this, you can make a pedal with any non-latching switch (for example, a button from doorbell) and use any solid state relay designed for switching currents of at least 10A. A battery or accumulator with a voltage of 5 to 24 V is used as a power source.
A cutting machine from a grinder is a handy tool that can be easily made if you have the skills to work with electric welding and metalwork tools. Made in just one day pendulum Circular Saw will save time in the future and will allow you to perform metalwork and welding work accurately and accurately.
