TOP 6 drawings will help you make a cutting machine from an angle grinder with your own hands without errors and extra costs. Answers to frequently asked questions, recommendations.
TEST:
Is it possible to make a homemade cross-cutting machine from an angle grinder: a verification test with answers based on the materials presented
- What switches are installed for emergency stop of the machine?
a) manual;
b) hand and foot.
- Which angle grinders are suitable for creating a cutting machine?
a) pneumatic and electric;
b) battery-powered.
- Minimum power of the electric motor of an angle grinder for a cutting machine from an angle grinder:
a) 400 W;
b) 900 W.
- What machines can be made based on angle grinders?
a) trimming, cutting;
b) grinding, milling, sharpening.
- Where can you place the grinder in the cutting machine?
a) above the tabletop;
b) under the tabletop.
Answers:
- The correct option is b). Foot switches are more convenient because they operate quickly.
- Theoretically, there is enough power in all three options. In practice, a) - electric and pneumatic models are used. A battery is not needed for a stationary machine. For a pneumatic drive, you will have to purchase a compressor of appropriate capacity.
- 900 W or more. Correction is made if workpieces made of relatively soft materials are expected to be processed, or at high speed.
- Both options are correct. A powerful grinder is suitable for creating various machines at the household and semi-professional level.
- Two mounting options are allowed. Experts prefer the top one.
An electric grinder performs many different work operations. To reduce labor costs while increasing accuracy, it is used as the basis for the machine.
“Bulgarian” is a common name for an angle grinder (angle grinder). By changing the disk, this universal device can be converted for cutting and performing other work operations.
Bulgarian women
How to make a cutting machine step by step with drawings: 4 reasons in favor of implementing the project
In order not to doubt the correctness of the decision made, study the following facts:
- without reliable fastening, the workpieces vibrate, increasing the risk of damage to the disk;
- it is difficult to manipulate a heavy tool with high precision while maintaining the perpendicularity of the cut;
- difficulties increase when processing thick products, when creating a large batch of similar parts;
- Using both hands significantly increases the likelihood of injury.
A high-quality machine is necessary to solve the noted problems and improve productivity. It is created according to the following algorithm:
- clarify the purpose and scope of work;
- study drawings of factory analogues and homemade products, choose the appropriate option;
- compose a set of design documentation with a list of necessary purchases;
- carry out assembly according to the approved plan with performance testing.
Pendulum saw
This version of the so-called angle grinder accessory allows for high-speed cutting of various materials at the desired angle. This device is called a pendulum saw. A tool with a power of 0.9-2.5 kW is usually fixed in its frame. In this case, the dimensions and other design features of the pendulum saw depend solely on the model of angle grinder used.
This option is the perfect attachment for an angle grinder for cutting at 45 and 90 degree angles. After all, the instrument will be fixed motionless. This will allow you to make precise cuts at the required angle.
Pendulum saw from a grinder Source ad-cd.net
The pendulum saw has a not very complex design. It includes a metal platform. It has a slot that allows the angle grinder disc to go deeper. A metal corner is fixed on the platform. The workpiece to be cut is pressed against it. To securely fasten it, another element is used, which has a thread that allows you to clamp the part with the necessary force.
The design also includes the pendulum hinge itself. It is fixed on a stationary frame. The tool is fastened by using holes that are designed for installing a handle on an angle grinder. The angle grinder is fixed in a special bracket and using additional pins and bearings. The parts allow you to secure the power tool in the desired working position.
Such a device for an angle grinder for cutting metal is usually placed on a table, which can be made of wooden or steel parts. It is important that it is a stable and durable structure. Some craftsmen even use a workbench as the basis for an angle grinder attachment.
A pendulum saw made from an angle grinder is placed on a stable base Source ad-cd.net
On a note! The cutting element of the pendulum saw must fit exactly into the slot of the platform or pass as close as possible to the end of the workbench or table if the angle grinder is mounted on a hinge directly near the edge of the supporting structure.
The mount for an angle grinder can also take the form of clamps. They are fixed on a pendulum handle. The clamps, which are tightened with bolts, are designed to attract the body of the angle grinder.
If the fastening is in the form of a rigid connection through the use of holes in the angle grinder, then it becomes possible to accurately position the power tool in space. You can even order a craftsman to make a device that will additionally include a protractor. It will allow you to make the most accurate cuts of various workpieces at the required angle. In this case, the protractor can be placed on the support platform or directly on the pendulum.
Variant of a pendulum saw from an angle grinder Source ad-cd.net
TOP 6 drawings with explanations for making a homemade metal edger
It is not difficult to create a standard circular saw if you attach a grinder under a work table with a slot. It is necessary to consider a guide system for high precision movement of workpieces.
Picture No. 1. Schematic diagram
Look at picture No. 1 to see what a typical edger looks like. Here the angle grinder is mounted on a movable hinge, which somewhat complicates the design. This scheme has several advantages:
- simple and reliable fastening of the workpiece;
- the significant weight of the upper part will help to use less effort when cutting workpieces;
- if necessary, hand-held electric tools are dismantled to perform work operations as usual.
Picture No. 2. Stand for an angle grinder
This power frame is assembled from standard steel angles and pipes with a square cross-section. Welded joints are more durable. But it is also possible to create a prefabricated structure using screws and nuts.
Picture No. 3. Assembly drawing of a pendulum saw
This project can be used as an example for making a high-quality metal edger. Equipping with wheels makes it easier to move a heavy product.
For your information! In other racks it is necessary to install screw supports. With their help, unevenness in the floor covering is compensated.
Picture No. 4. Pendulum circular saw
Look at the picture for an example of a machine for processing wood. This technique is suitable for cutting large workpieces. It is necessary to choose a grinder with sufficient power so that it is enough to work with large-diameter discs. A load is secured on the reverse arm of the lever (instead of an electric motor, as in the drawing). The weight and mounting location are selected in accordance with personal requirements and the characteristics of a particular design.
Picture No. 5. Drawing of a circular saw
This machine can be converted to be mounted at the bottom of an angle grinder. If longitudinal sawing of wood is planned, such an engineering solution will be optimal.
Picture No. 6. Design of a factory miter saw for wood
Look at Picture No. 6. You can use it to make a set of drawings with your own hands. It is recommended to pay attention to the spring, which lifts the working unit to its original state. A rotary table with measuring devices will help create a machine with increased tolerance requirements.
Picture No. 7. Drawing of the frame
In the manufacture of this part of the machine, thick metal is used. This solution increases cost and weight, but extends service life, increases reliability, improves fastening of hinged elements and processing accuracy.
Sheet steel cutting machine
Grinder machines, which can be used to cut steel sheet material, are much more complex than conventional pendulum ones. The main difficulty here is that the sheet of metal has certain linear dimensions and it is necessary to maintain evenness of cutting along the entire line. Another difficulty here can be considered the effect of heating the cutting area, during which the metal expands and clamps the angle grinder disk in the channel, which is fraught with jamming and rupture of the tool with all the ensuing consequences.
The main parts of such a machine:
- Base. Ideally, it should be no smaller than the sheet that is supposed to be cut with a grinder, or allow the entire cutting area to be laid on it. It is necessary to use steel as a manufacturing material so that it absorbs heat, preventing the steel cutting line from overheating.
- U-shaped stand. This structural element serves as a guide for pulling the angle grinder through. The length of the section between the legs of the stand should be sufficient to place a sheet between them, plus allow the body of the angle grinder to fit freely.
- The carriage is a movable element that moves along a U-shaped stand on bearings. A pendulum console and a depth limiter for lowering the cutting disc are attached to it.
- The pendulum console serves as a mechanism for lowering the angle grinder to the level of the working position. Also attached to it is a tool control handle.
You need to pull the angle grinder in the direction opposite to the direction of the sparks, otherwise the tool will be undermined with a high probability of jamming.
Converting an angle grinder into a machine step by step: 10 assembly stages, electrical diagram for drawings
To create a machine yourself, you need to choose a design that matches your existing skills and capabilities. The easiest way is to assemble a machine from blanks created according to drawings in a specialized metalworking workshop. Otherwise, you will have to master welding technologies and purchase the necessary equipment.
Below is a step-by-step self-assembly algorithm with useful comments:
- After approval of the project parameters, the necessary materials, workpieces, tools and replacement attachments are purchased. The shopping list is determined based on the prepared set of design documentation. Compliance with current standards is not required in this case. However, all important details must be included, as in the examples above.
- Blanks for the power frame are cut. The table is made from sheet steel with a thickness of at least 5 mm.
- A transverse shaft is welded to the pendulum arm. When creating this unit, the perpendicularity of the parts is carefully controlled.
- A grip in the shape of the letter “P” is suitable for attaching an angle grinder. A hole for bolts is made in its side parts. With these fasteners, the hand tool is rigidly attached to the machine bed. Choose a fairly strong part of the grinder body.
- Additional fixation is provided using a metal clamp. All of the above mounts are made rigid to improve accuracy.
- The swivel bearings are pressed in. Instead of standard factory-made units, steel pipes with thick walls of suitable internal diameter are used.
- The assembled units are fixed on the axis of two sides.
- The pendulum is attached to the platform by welding. To avoid damaging the bearings, it is recommended to limit the temperature rise. To cool, use a cloth soaked in water.
- Weld a block with a mount for an angle grinder. Reinstall the angle grinder, protective devices, and return spring.
- They check the quality of the assembly, the reliability of the fastenings, and the functionality of the pendulum. Connect the machine, check the functionality first at idle and then in operating mode. The groove in the table is cut with a disk of appropriate width.
Picture No. 8. Connecting a magnetic starter with shutdown buttons and a protective thermal relay.
Look at Picture No. 8. Here is an electrical diagram for the drawings that improves the protection of equipment from overheating. It is also useful for quick emergency shutdown. One or more buttons for breaking the corresponding circuit are installed in a convenient place in the machine body. Foot operated switches are also used.
Basic information
Using a conventional angle grinder is not always convenient. After all, at least you have to hold it with your hands. However, a properly selected angle grinder attachment will allow you to use the tool more conveniently and get the maximum benefit from it.
Important! The rotation speed of the grinder is 12,000 rpm. Therefore, regardless of its use, all safety measures must be observed.
The use of specially designed and created additional structures allows you to expand the functionality of the power tool. At the same time, the grinder always remains the main working mechanism, and the devices are accessories. They are available in specialty stores. Their production is even ordered from specialists.
The grinder is a non-volatile tool for installation, construction and repair work. It was originally designed to cut, grind and deburr various materials.
Reliable grinder from a Russian manufacturer Source zubr-russia.ru
Additional accessories allow the angle grinder to be used for trimming parts and performing milling work. The improved design is used for sharpening operations, creating grooves, making even cuts at the required angle and as a pendulum saw.
Important! Any well-thought-out attachment for an angle grinder allows you to increase the productivity of the work performed.
The choice of a specific additional accessory for an angle grinder depends on the area of use of the tool. The scope of its application affects the type of working disks. After all, manufacturers produce them in various designs for working with metal, concrete, and wood. Moreover, there are separate discs for grinding and polishing operations. However, they differ in grain size.
Discs for working with metal Source stroy-market63.ru
Store-bought accessories allow you to quickly improve your angle grinder. However, not every factory-made accessory has the necessary quality, which will ensure, for example, cutting accuracy. Therefore, it is not always advisable to purchase ready-made options. Sometimes the best solution is to order a so-called device from craftsmen who not only know all the intricacies of manufacturing, but have also personally tested the effectiveness of its use.
Of course, you can buy a grinder machine in a specialized store. After this, there is a possibility that it will turn out to be of poor quality and will not be able, for example, to firmly fix a power tool. Next, all that remains is to throw it away or give it to a specialist so that he can improve the device. With any of the options, a person will lose a certain amount of money.
Not all shop machines for angle grinders are of high quality Source 24aul.ru
Machine reinforcement and other operator protection
A reliable power frame is the basis of safety. Additionally, they cover moving parts and prevent unauthorized persons from accessing the work area. When processing parts, goggles, masks, mittens, and other personal protective equipment are used.
In addition to the reliable strengthening of the machine, a certain location of the grinder serves to protect the operator. For safety and to prevent damage to clothing, it is installed so that the sheaf of sparks during operation is directed in the opposite direction from the person.
Briefly about the main thing
The grinder is already called a universal electric tool due to the ability to use it together with various devices. They are the ones who expand the scope of application of angle grinders.
The devices are available in retail chains in factory-made versions or their production is ordered from craftsmen. Bolkarka can serve as the basis for a cutting, grinding, milling machine. An angle grinder is used in the same way as a pendulum saw or wall chaser. An angle grinder even allows you to cut porcelain tiles evenly and quickly.
For an angle grinder, a protractor or miter box is purchased in ready-made wine or made to order. They allow you to cut workpieces at the desired angle. Cutting machines for angle grinders often have guides in their design.
All 5 options for homemade grinder machines for various purposes
The drive of tools in this category is highly powerful. A high-quality grinder is small in size, durable, and resistant to high workloads. Some models provide speed control. Modern angle grinders are equipped with overheating protection as standard. Such products are a good basis for the manufacture of homemade machines for various functional purposes.
Picture No. 9. This homemade cross-cutting machine is suitable for processing granite and marble slabs
Grinder lathe
Picture No. 10. Diagram of a wood lathe made from a grinder.
The standard design is used here. The only excellent component is the device for transmitting force to the spindle. A gearbox is needed to regulate the speed and torque within the appropriate range.
Homemade wood milling machine with your own hands, other types of equipment
Picture No. 11. To secure different tools, a do-it-yourself wood milling machine must be equipped with a universal head
For your information! This device can be attached to the electric motor shaft after dismantling the standard gearbox.
Picture No. 12. Quick solution to problems
Look at Picture No. 12 shows how you can assemble a full-fledged sawing/circular machine from available materials in 15-20 minutes. With its help, it is easier to ensure precise processing of wooden workpieces compared to using hand-held power tools.
Picture No. 13. From the picture it is not difficult to understand the principle of operation and design of the grinding/surface grinding machine
3 other machines: sharpening machine, for sharpening chains and cutting bricks
Picture No. 14. Sharpening machine
Here, potentially dangerous places are protected from damage by sparks using strips of foil. A temporary, but inexpensive and quick solution to a practical problem.
Picture No. 15. When equipped with a suitable disk, such equipment is used for cutting brick, ceramic tiles, natural/artificial stone
Picture No. 16. Rigid attachment to a durable tabletop turns an ordinary grinder into a convenient machine for sharpening chains
VERY DANGEROUS! In any case, we must not forget about the intended purpose of the equipment. If you are making a homemade metal cutting machine, you should consider strengthening the structure. Processing of plastic and wooden workpieces is carried out with less stress.
A little theory: what materials and consumables will be needed?
To process workpieces, you can install a Velcro attachment on an angle grinder, to which a round sandpaper of the required grain size, or a flap circle, is attached.
The body of a homemade surface grinder can be made of plywood or MDF. To fasten the parts you will need self-tapping screws and PVA glue.
You might also be interested in reading the article: how to make a homemade bench vise from a channel bar and a car handbrake
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We make a machine for cutting metal using high-quality equipment: TOP 3 manufacturers of angle grinders
This list contains brands whose equipment has received high ratings from ordinary users and professionals:
- Bosch. It is famous for its reliability and well-thought-out small design elements. A significant limitation is the high cost even in the basic configuration.
- Hitachi were initially expensive. But these days, part of the production has been moved to China, which has reduced costs. Some models do not have automatic speed stabilization under load.
- Makita - Reasonable combination of price and quality. All new high power models are equipped with effective overload protection, which extends the actual service life.
What it is
Essentially, this is a hard, fairly durable “suitcase” designed for carrying and storing a specific device. The device itself, working equipment (discs, circles), removable parts, tools necessary for operation and maintenance (wrench for attaching discs, brushes, screwdrivers, etc.), necessary additional devices, consumables (lubricant) are placed and fixed in it etc.) and other necessary items.
The case helps solve the following problems:
compact arrangement of all parts, tools and materials, which makes them easy to carry and quickly find when necessary;
reliable fixation of the angle grinder, preventing it from falling and any beating during transportation;
protection of tools and equipment from mechanical influences, which is important for both angle grinders and discs;
sealing the storage area to prevent the entry of moisture, dirt and dust.
Case for angle grinder PWS 600 DER IV Bosch 2605438151. Photo VseInstruments.ru
The design ensures that the specified tasks are performed and that the tool is easy to carry. To do this, cells are made inside the “suitcase” in which all the parts and the angle grinder itself are tightly placed. The dimensions of the cells and the entire case must correspond to the dimensions of the specific device model. The “suitcase” is equipped with a convenient handle and lock.
How to avoid 4 mistakes during operation of grinding/surface grinding and other machines
In order for the machine to perform its functions for a long time, the following simple rules must be followed:
- Do not increase the load more than planned.
- Use suitable replacement tips as specified in the manufacturers' official instructions.
- Remove dirt promptly to avoid deteriorating the air cooling mechanism.
- Maintain the ideal state of electrical insulation and the functionality of protective devices.
What is needed to make an organizer?
Materials for making an organizer are not difficult to find, and you can literally use leftovers from renovations in your bathroom.
PHOTO: YouTube.comYou will need a piece of sewer pipe approximately 70 centimeters long; it needs to be cut into two equal parts
In addition, you will need:
- ordinary plastic water pipe ─ 2 pieces of 40 cm each;
- two corners for the same pipe;
- another small piece approximately 12 cm long;
- leftover plastic.
Prepare the following tools for work:
- grinder;
- drill;
- roulette;
- screwdriver;
- glue gun
Dust extractor from a plastic canister
There are two or more economical dust removal options. Everyone has an empty plastic container for technical fluids in their garage. This canister holds its shape perfectly, it is simply not processed immediately and has an outlet pipe of the required diameter. We carry out fitting, the main aspect is to ensure the required immersion depth of the disc.
Use a construction knife to cut out the required holes. Do-it-yourself stand for an angle grinder
We select the dimensions taking into account maintaining the rigidity of the structure. We make landing dimensions on both sides, for the ability to change the direction of rotation of the disk
Sanding wood with an angle grinder
The modern market is flooded with various types of power tools, each designed for its own purpose. Purchasing expensive equipment is advisable in the professional field. In everyday life, you can use the same devices for different purposes and not spend extra money.
Thus, the so-called grinder is often used in sanding wood. Or an angle grinder, designated by the abbreviation angle grinder.
With the help of special attachments, a tool originally intended for metal processing is transformed into a wood grinder.
Plastic case for an angle grinder 230mm for an angle grinder Makita 9069. Original spare part! Manufacturer: makita.
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Spare parts for grinder Makita 9069
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How to grind with a grinder
We must not forget that sanding always involves a lot of dust.
When preparing for sanding, don't forget about yourself! A protective mask and respirator are the best assistants when grinding. You can also find an option where the mask is combined with a good respirator. The respirator filter will clog very quickly, so you need to prepare several pieces at once for prompt replacement. Only after thorough preparatory work can you begin sanding.
Sanding wood + (Video)
Wood is a unique material. It can be sanded quite well by hand, but with a grinder you can achieve very good results. Some snobs claim that you can’t grind with a grinder at all, but this is due to ignorance and inability.
The main secret is that the grinder is used at minimum speed. If the grinder has a speed switch, then there will be no problems. At high speeds, the sandpaper will become clogged with wood very quickly and very tightly. In this mode, it will not be enough for even five minutes of work. The optimal speed is no more than 6000 rpm.
Another secret is not to sand the entire area of the wheel. If you sand the entire surface, circular marks will remain on the wood. To ensure that there are no sandpaper marks left at all or that they are minimal, you need to sand only with the upper sector of the wheel. The movements of the machine should be along the grain of the wood.
Using this method you can get excellent results when sanding lining. The board becomes smooth and does not retain tool marks. Just don’t get carried away and change the sanding pads on the wheel in time.
The frame is polished in a similar way. Here it is desirable that the support plate is thin around the edge. With such a plate it will be easier to sand narrow junctions of logs. Otherwise, this work will have to be completed with a chisel.
We work on concrete + (Video)
If you were unable to purchase a branded protective boot with a nozzle for a vacuum cleaner, then you can make it yourself. To do this, take a used putty or glue bucket with a diameter slightly larger than the circle of the grinder. We cut off the bottom part at a height slightly higher than the assembled sanding part.
We cut a hole in the bottom for installation on the gearbox and a hole for the plastic plumbing corner outlet. Now we connect the vacuum cleaner hose to the nozzle and work quietly.
The grinding wheel must be designed for stone processing. It is preferable to grind concrete and concrete surfaces using the entire surface of the wheel. This will save processing time and level the surface well.
When grinding a concrete floor, you must constantly control the plane using a construction ruler, because due to the different densities of concrete, indentations can be made. To process the joints between concrete pours, it will be sufficient to achieve one level combination.
It is good to grind concrete floors and surfaces with a Matrix diamond grinding cup. If the grinder is 150 mm, then the cup is 125 mm.
Grinding metal surfaces + (Video)
The metal is polished to different requirements. Most often, the metal is ground for painting or for further polishing. The main tool is a support cup with replaceable sanding pads. The selection of sandpaper depends on the degree of processing and the condition of the metal.
When sanding, you only need to work with part of the disc. There should be no untreated areas left on the surface.
It is advisable to coat the treated surfaces of ordinary steel with a primer. Moisture in the air can very quickly coat the metal and cause rust.
Homemade grain crusher (for those in the know)
Those people who keep various domestic animals have to buy food in the form of crushed corn or cereal grains.
However, crushed raw materials are more expensive. And it is not profitable to buy it. To save money, you need to grind the grains yourself.
And this is exactly why our homemade grinder comes in handy - a tabletop grain crusher .
