Mini grinder: features of making homemade products

Assembling a homemade grinder and checking

You need to start making an angle grinder with your own hands by preparing a piece of sewer pipe.

Take a 50 cm pipe and cut a 35 cm long piece from it. Next, prepare the plugs. The large plug needs to be cut a little less than half; it will be used as protection on the angle grinder.

A corner should be screwed to the plug that is smaller in size, 50 mm.

On one side, the corner is screwed to the plug, and the electric motor is fixed to the second half. The entire structure is assembled with bolts; it is not recommended to use self-tapping screws for these purposes.

Then, on the other side of the pipe, a second 50 mm plug is installed. In its center you need to make a hole for the button. Before attaching the plug to the glue, you will need to solder wires to the button and pull them through the pipe to the electric motor of the angle grinder.

How to make a mini grinder with your own hands - Metalist's Guide

Since the invention of the grinder, the popularity of this tool has only increased. This tool has a lot of advantages, thanks to which it remains in demand in various spheres and industries of life.

The disadvantage of a standard angle grinder is the fact that it is not designed for working with miniature parts. This problem was solved by releasing mini-grinders.

If you can’t buy a tool, then you can make a mini grinder yourself.

DIY mini grinder

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How to make a mini grinder with your own hands. It happens that in the garage you need to trim or sharpen something for your car, but you don’t have a grinder at hand.

For such cases, I built a “grinder” from various rubbish that runs on 12 volts (from the cigarette lighter). It is also applicable in an apartment if there is a 12-volt power supply.

At home I use a power supply from an old computer.

Of course, it was possible to assemble a drill, but among my “garbage” there was no special cartridge, but this was found:

- an empty can of silicone sealant; - a speedometer cable from a car; - a motor from a car compressor; - a small bearing (labeled as 625-z); - a twisted wire from a mobile phone charger; - a car relay; - a stand screw for attaching the motherboard boards;— 0.5 l plastic bottle;— crocodile clip for wires;

Wall chaser

Often when laying electrical wiring or cutting passages in the wall, an angle grinder is used as a tool. At the same time, comfort and safety during work leaves much to be desired. If you make an attachment for an angle grinder with a solid base, you can make cuts in the walls as far as the diameter of the disk is sufficient.

In essence, it is a support sole that allows you to smoothly move the angle grinder along the wall, with uniform force. When you make this device for an angle grinder yourself, take the time and install a closed case with a pipe for connecting a vacuum cleaner.

Popular: What spare parts for angle grinders can be changed independently, and how to properly maintain power tools

The first option is using a drill

This option is quite simple. For example, it is necessary to build a small grinding wheel, which will later be installed in a drill. Take an old or broken disc and mark an even circle on it using a caliper. Cut out the resulting shape. You need to drill a hole in the center and insert a bolt with a diameter of 6 mm. Place a washer at the bottom and secure everything with a nut.

The same bolt that we inserted into the center of the circle will become the axis of rotation of the entire disk.
The bolt is attached to the drill socket and clamped tightly. The job is done, now feel free to sand your parts. It’s not difficult to build a cutter for cutting small parts. Take a metal stopper, found on a glass bottle, and make a hole exactly in the middle. The same bolt with a diameter of 6 mm can be used as an axis. Bend the edges of the cork and cut off the uneven teeth. It's better to mark it up.

A cutter like this will work well if you load it into a drill. The device can easily cut small wooden or plastic parts.

Making a wall chaser

What can you make from an old grinder? Home craftsmen ask themselves this question quite often. But if your angle grinder works properly, you can use it to make a wall chaser. By using equipment without modification, you are putting yourself at risk. In order to avoid risk, you can make a nozzle with a solid base, which will allow you to make cuts in the walls over the entire diameter of the disk.

This addition is a footplate in the form of a stop that allows you to move the tool along the wall. The efforts will be uniform. When you make such a device, take the time to install a closed cover, which will be supplemented with a pipe for connecting a vacuum cleaner.

What can you make from a grinder with your hands?

The wizard will show you a selection of interesting ideas for using an angle grinder that will help expand the functionality of the tool and make it more convenient. See a selection of 5 options and choose what you can do based on your experience. 1. The screen shows a saw blade. This is not a factory production. This homemade product has two clamps - horizontal and vertical. Thanks to the duo of clamps, not a single part will come out of place - be it a corner or a pipe. In addition, there is a movable stop for serial cutting of parts of a certain length. An excellent device that is easy to assemble by hand.2. Grinder may not be visually beautiful, but no one demanded that from him. The idea is reliability and practicality. The most interesting thing is that no welding machine was used to make the homemade product. In other words, not a single part is welded. Everything is bolted together, which makes assembly easier.

3. You can make a home mini sawmill from an old table. Attention! A fragment of this video shows an unfinished machine or the protective casing removed from it. In addition to this and others, there are also questions about gloves. Watch TB when working on a sawmill. Using the power regulator, you can change the speed of this homemade product. The grinder is attached under the table in three places. Thereby eliminating any vibration of the disk. But note, this is just an idea, not a finished unit. When making such a homemade product, take care first of all about safety. It is necessary to close the unused part of the disk. For convenience, expand the table and install guides.

Products for inventors.

Why make a machine from an angle grinder

A cutting machine is a useful and necessary thing, not only in industrial conditions, but also in the household. With this useful tool you can make precise cuts of parts and workpieces. This is achieved by securely fixing the cutting disc, into the spindle of which you can install not only abrasive wheels for cutting metal. A stationary machine can be used for cutting tiles, bricks, marble, granite and other similar materials, using special diamond-coated wheels in the design of the tool. If necessary, such a machine can be used for sawing beams, boards and other wood workpieces.

Many people who have repeatedly faced the need to make an accurate cut of a workpiece want to know how to make their own cutting machine from an angle grinder and available materials. Holding the grinder in your hands, you can also make a precise cut, but it is more difficult to do this, since you have to hold the tool exclusively with both hands. Using a homemade cutting machine, you can not only perform, but also simplify the following work:

• Cut sheet material, such as galvanizing, used for chimney insulation and other purposes
• Cut ceramic tiles and tiles - keep in mind that the cut can only be made straight
• Cut materials at different angles
• Cut a metal profile, pipe, wooden beams, boards, etc.

The manufacture of a machine from a grinder requires an appropriate approach. After all, the tool itself is very dangerous, so the slightest miscalculation can lead to the master being seriously injured. The consequences of working with an angle grinder if safety regulations are not observed are known, so first, before building a homemade product, it is worth noting the following:

1. Only with the correct manufacture of a stationary cutting machine can you be confident in its reliability and safety
2. If you plan to do it, then you need to calculate every step so that no disaster happens during operation.
3. Using a machine is in some ways safer than using a tool while holding it in your hands. However, you need to be aware that an angle grinder is a mobile tool, and making a homemade one is already a violation of safety regulations
4. For manufacturing, it is necessary to use materials of appropriate reliability, corresponding to the power and size of the main power tool.

Having dealt with the need to manufacture the machine, you can get down to business.

This is interesting! If you can’t decide whether it’s better to buy a new machine or make it yourself, then the second option is more preferable, since the cost of a factory device will cost at least 10,000 rubles. If you make it yourself, you won’t need any expenses, since the grinder is already on the household, and the components can be found in the garage.

Important points when constructing a pendulum machine

The type of tool under consideration belongs to the category of dangerous, therefore, when constructing the equipment, the following main points are taken into account:

The manufacture of the frame is the basis responsible for the reliability of the installation. It is impossible to save on the manufacture of the frame, therefore, exclusively steel materials are used, the thickness of which is at least 2 mm. Frame - the design of this part can be different, but the most important thing is to ensure the mobility of the cutting tool. This is achieved through the use of different materials, but in any case, you need to think carefully about the quality of the hinge joint, since your life depends on it. It is better to spend more material, but make a high-quality and safe cutting machine. Tool fastening - the angle grinder is fixed directly to the moving part. Moreover, the fixation must be as reliable and high-quality as possible. When using an angle grinder, “reverse impacts” may occur, which are dangerous because the machine may simply be damaged, and the master who performs the manipulation will suffer as a result. Provide a counterweight - this is a small but important element that allows the tool to return to its original position when not needed

This will eliminate the possibility of damage to parts of the human body. A protective casing - it must be required, and it does not matter what design of the machine is invented, but using the device without a protective casing is strictly contraindicated. The presence of a ruler - this will improve the accuracy of the work performed, which is important when cutting such parts, like tiles, ceramics, and also metal. A starter is also a kind of device that affects safety. The control button should be located in close proximity to the master performing the work

This will allow you to quickly react at the right time by turning off the power supply to the tool.

In addition to options when the machine has a moving part, there are also methods for manufacturing cutting devices with the tool located in the lower part of the bed or workbench tabletop. However, this option is suitable only for cases when sawing wood is planned. Below is an example of how to make a home sawmill from a grinder quickly and easily. Details on making home sawmills can be found in this article.

This is interesting! The tool can only be used in this form with disks or circles for processing wood. Cutting tiles and metal in this position of the grinder is extremely dangerous.

How to Rewind a Grinder to 12 Volts

Do-it-yourself grinder from a drill and chainsaw

Quite often in everyday life you need to repurpose working tools. This does not apply to the situation when you need to use an angle grinder, but you don’t have one. There are options to come to the rescue: a drill, a gas-powered one, or an electric saw, what is the duration of the project, what tools are available.

The usual ineffective method of getting an angle grinder from an electric saw

Grinder from a drill ()

For such a transformation, the following tools will be useful at home:

Before starting the transformation, you need to make sure that in the coming days the drill itself will not be useful in the work. In the last article, I told you how to connect and start a 380-volt motor in a single-phase 220-volt power supply. And later it’s enough to follow the step-by-step instructions:

1. Choose an attachment for your future grinder.
2. Take a small diameter steel rod without grinding off one of its edges. This action is necessary for the best fit into the nozzle. Also, for the best adhesion, you should slightly grind down the places that will come into contact with the petals of the cartridge, not the rod itself.
3. Fix all parts.

A frisky, unusual method for creating an angle grinder

There is no second, more difficult method to achieve the desired result.

1. The chuck is removed from the drill. For an angle grinder it is not necessary, so there is an option to clean it, lubricate it, or store it.
2. Choose an attachment for the upcoming tool. It would be better if it were a part made of strong steel; a lightweight version would be inappropriate here.
3. Choosing a rod. It needs to be of such length that its part protrudes outside the drill by 1.8-1.9 cm. Next, one of its ends should be ground off with a rasp so that in the process a rod comes out that completely coincides with the socket in the nozzle itself. Before the joint, it is worth smearing its ends with machine oil for the best passage.
4. Installation of the ball bearing is carried out to the output area. A rod will be threaded through it for future fixation at the base. If this step is not necessary, the rod is fixed in its own place.

Do-it-yourself 12-volt cordless grinder

Bulgarian

homemade. Without machines, current was used in production (motor with a Bulgarian disk and almost

Following the instructions, the grinder comes out in 1-2 hours

There is an option to make an angle grinder using this method within a few hours, but you can’t get the necessary tool here.

Grinder made from chainsaw and electric saw ()

A more common method of making a grinder with your own hands is to convert it from a gas-powered or otherwise electric saw. Because of the ready-made fixture

Working of a disc for an angle grinder

will have a number of advantages:

• Possibility of autonomous operation.
• Highest power.
• Cost of operation.

To transform your chainsaw into a different electronic form into an angle grinder, buy special attachments at any hardware store. They will help to accomplish these transformations in a matter of actions.

For an angle grinder, you need to reduce the risk of disc failure. For these purposes, the saw is equipped with a special protective casing. It is also worth reducing the number of revolutions using a speed reducer.

Bulgarian 12 volt ()

For the client to be able to use an electronic instrument, its 12-volt power needs to be converted to 220.

You will learn how to correctly connect single-phase 220 volt electric motors using the example of motors from a washing machine.

Thus, it is natural to power it from a car in which a constant current flows with a voltage of 12 Volts, by installing a special invector.

Low-power invectors should be connected to the cigarette lighter; there are no special requirements. The only aspects are:

• Use at temperatures ranging from 15 to 50 0 C and average humidity.
• Do not allow devices to operate in direct sunlight.
• Do not use the space under the seats for storage, as the invector will heat up during operation. To cool it, you need unobstructed air flow.

It is recommended to connect a more powerful invector to the battery terminals. However, it is prohibited to turn on the ignition or engine if the invector produced is connected to a non-removable battery.

It’s natural to make an angle grinder from different tools that everyone has nearby. Thanks to the instructions, the work can be done with your own hands in just 2-3 hours.

Making a homemade machine from a grinder features

It’s not difficult to make your own machine from a grinder yourself. Moreover, there is a wide variety of manufacturing options, which depends on the available materials and imagination. There are two types of stationary cutting machines made from grinders:

1. Simple - it received this name for one reason, which is not only the ease of manufacture, but also the minimalism of the device itself. The tool is attached to the workbench using additional materials, and it can be used
2. Complex - it is rational to manufacture such machines if you plan to use it often for different actions. In most cases, a simple device is enough for a home garage, the manufacture of which requires little time, effort and consumables.

In order to make a cutting machine from a grinder with your own hands, you will need consumables, which are metal plates, as well as profiles and fasteners - bolts, nuts and washers. The only specialized tools you will need are an electric drill and a welding machine. Let's look at how to make the simplest version of a cutting machine from an angle grinder in more detail below.

How to make a milling machine?

It is necessary to ensure correct fixation of the machine in a vertical position. What materials will be needed for this?

• durable grinder;
• Desktop;
• thick plywood;
• welding machine;
• fastening elements (nuts, bolts);
• locksmith tools.

To make a router, you don’t need any exorbitant materials; everyone can have everything in their workshop.

Sequence of manufacturing a milling machine:

• A base for the machine is made from chipboard, the walls of which are opposite each other.
• The metal body is fixed on the moving part
• Place the tool on the side frame; they can be used in any size.

Making such a machine is not difficult; it seems that anyone can make it using existing cool ideas.

Purpose of the frame for the grinder

Using a stand allows you to cut products quickly and efficiently.
Securing a power tool on a rigid stand has a number of advantages. So, thanks to the frame, you don’t have to hold the grinder in your hands, which will allow you to focus on the precision of processing the product

In addition, you eliminate the risk that the turbine may slip out of your hands due to fatigue or carelessness. Sanders often have special threaded holes for fixing on the frame, thanks to which you can position the tool at a convenient angle

And the rotating holder allows you to change the vertical position of the tool depending on the tasks.

Converting a chainsaw into an angle grinder

Sometimes it becomes necessary to cut off a pipe or corrugated sheet in a place where there is no electricity. For this, a chainsaw grinder is used, which can be easily converted using a purchased attachment.

It consists of:

• drive pulley or drum;
• protective casing;
• belt drive and a set of keys and studs.

To install this device on a chainsaw you need:

• remove the bar and chain;
• empty the oil tank and remove the clutch drum;
• mount the device pulley on the drive shaft of the drive sprocket;
• secure the protective device and install the belt drive;
• install the cutting disc - and the mechanism is ready to work.

The main advantage of the design is that it can be used in places where there is no electricity

When working with such a machine, extreme caution must be taken, since the chainsaw has a higher torque than a standard angle grinder. In this case, the risk of cutting blade destruction increases.

If you don’t have a drill or chainsaw at hand, but you need to cut materials, you can make an angle grinder from a screwdriver. The algorithm for its modernization is almost the same as for making an angle grinder from a drill. The main element of the design will be the purchased nozzle - adapter

or the spindle of a faulty angle grinder.

To the advantages

Such a power tool can be attributed to the rapid transformation of the mechanism and the possibility of use away from the electrical network. The homemade product can be used in cramped conditions where a standard angle grinder is not suitable due to its large size.

Main disadvantages

homemade device can be called:

• short battery life (when using a cordless screwdriver);
• low rotation speed of the cutting disc - about 700 rpm;
• insufficient power of the electrical device.

Such a mechanism can only be used as a low-power angle grinder.

With its help you can cut metal with a thickness of no more than 1.5 mm or a 20*20 corner. They can cut reinforcement with a diameter of less than 8 mm. Using a screwdriver as a full-fledged cutting tool will not work.

Features of using an angle grinder

metal cutting

If you also use attachments with this tool, you can expand the number of options for its use. In particular, using this tool with attachments, you can perform high-quality grinding of the base of workpieces. They will be cleared of foreign inclusions. Attachments for grinders can be purchased at the store. But if you do not want to pay money, then you can make them yourself.

In some cases, this tool is used as a wall chaser. With its help, grooves are created for laying pipes and electrical wires. To use an angle grinder in this capacity, you will have to perform some manipulations and increase the standard width of the protective casing. In addition, you will need to make a support plate.

This tool can be used with one disk or several at once. If the grinder is used with two disks, then it is necessary to make some changes to the attachment point of this tool. After this, the grinder can be used in standard mode.

It often happens that during repair work there is a need to clean the base of parts that are difficult to access. In such cases, craftsmen most often resort to using a homemade device for an angle grinder in the form of a special attachment, thanks to which a small disk can be carried beyond the dimensions of the angle grinder.

In this case, the rotation will be transmitted using a special belt drive from the main drive. Using this design, materials cannot be cut. However, scale can be removed from the surface of materials without any problems. It often occurs on the surface of welds.

Currently, the market offers a large number of attachments for tools such as an angle grinder. Their use allows you to significantly expand the options for using this tool. If we talk about the most commonly used attachments for grinders, we can highlight the following:

• a device for sanding the base and removing the paint layer from the surfaces of materials;
• beds;
• protractors.

Materials and tools to make attachments for an angle grinder

The cost of the devices is not very high, so everyone can afford them. There are also no difficulties in finding these attachments. However, despite all this, many people still decide to make attachments for an angle grinder with their own hands.

If you decide to make attachments for this tool yourself, then before you begin, you need to prepare the following tools:

1. An electric drill, it is advisable to purchase a set of drills in addition to it;
2. It is advisable to choose discs with a diameter of 125 mm.
3. Wooden bars.
4. Metal corner.
5. Duralumin steel plate.
6. Self-tapping screws.

Making your own devices

To make working on an angle grinder easier, all sorts of designs have been invented that increase its functions. The presence of equipment makes it possible to use angle grinders as a belt grinding machine. It is not difficult to make accessories for an angle grinder with your own hands, and it will also cost much less.

Accessories for grinders

• Tripod
• Retainer
• Fraser
• Miter box
• Wall chaser
• Extension

A tripod is a device that frees one hand. The angle grinder is held with only one hand, and with the other hand it is possible to support the metal and turn it if necessary. In addition, it makes it easy to set the desired cutting angle. It allows you to do work efficiently and safely. The frame is made of metal profiles, a shock absorber, and sometimes even plywood is used. Such an improvement is only permissible for a machine with 125 mm discs; with a larger size it is dangerous, since you have to remove the casing. You can take different options as a basis or make your own drawing. The main thing is that the tool is securely fastened. The most convenient way is when the angle grinder is attached to the protection casing. You only need 2 10mm bolts and 2 nuts, which are attached to the outer part of the casing. There are 2 more plates and a pipe onto which everything is screwed. And the switch should be made not fixed, you can use a foot pedal, then in an unusual situation it is easy to stop the machine. If the design for cutting metal is strong, then you can use it for sawing wood.

Clamp – there are many clamps, but the best option for fastening an angle grinder is a vice. They hold firmly and there is no need to support with your hand, thereby reducing the risk of injury. Rotary vice increases the capabilities of the machine (oblique cut). When you install the desired disk or file in a vice, you get a sharpening machine, but after unscrewing it, you can do the work manually. And by attaching stops with a slot across the disk, very precise processing can be achieved. The most popular option is a band sawmill made from an angle grinder. You just need to have a reliable frame and strengthen the machine well.

A milling cutter is another device for an angle grinder. The machine has a powerful engine, so it can be converted into a milling cutter. To do this, you should take the shaft into the opening of the workbench and put a chuck with heads for milling on top. The resulting homemade device for an angle grinder is used to process hard wood.

It is important to remember that the device is not designed for this type of work, so you need to take care of your safety. A miter box is a rotating surface for a grinding machine.

Using this device, it is easy to cut plinths, baguettes, profiles at the desired angle

A miter box is a rotating surface for a grinding machine. Using this device, it is easy to cut plinths, baguettes, profiles at the desired angle

You just need to install the desired disk, then the surface is fixed at an angle of 45 degrees, and the machine is ready for work. You can cut any platband for a wooden house or paving slabs.

A wall chaser is a necessary device for an angle grinder. Used for laying wiring by hollowing out recesses in the wall. However, this is not safe. When making an attachment for an angle grinder that works on a dense base, it can be used to cut walls along the entire diameter of the disk. With a good sole for an angle grinder, its guiding movement is carried out smoothly, without much effort.

Extension cord – used for plumbing and plumbing work in hard-to-reach places.

The second option is complete assembly with your own hands

Based on how much power you need for a mini grinder, its production can proceed in two directions. In the first option, a network power source will be used, and in the second case, the device will become completely autonomous through the use of batteries or a small accumulator.

Such devices will have different appearance. A stand-alone device will require an additional battery compartment.

It’s easy to use a PVC pipe as the body of a mini grinder. If the diameter of the pipe is larger than the engine, you can wrap electrical tape around it and attach it to the body using a glue gun.

As plugs, you can use ordinary plugs that fit on the same PVC pipe. A through hole is made in the front plug for the shaft, and in the rear plug for the wire. On the case you need to install a power connection connector - a switch button.

If you can attach a collet clamp to the shaft, then such a homemade product will be an ideal solution. The reception will ensure the use of standard burs and non-standard cutters and discs. If installing a collet clamp is not possible, you can connect the cutting tool and the shaft using a double contact from an electrical block.

In the same way, a body is made for a homemade miniature angle grinder that operates in autonomous mode. In this case, when installing the battery, you cannot forget about the battery pack equipment. The wires from this unit are connected using a switch that will be installed on the body of the unit.

In both cases, on mini grinders assembled with your own hands, you can use homemade tools or standard, industrial drills and burs.

A grinder made from a drill is easier to make than the other way around. The grinder or angle grinder (angle grinder) has become an indispensable electric tool due to the wide range of work that can be performed with its help, but it has its drawbacks that interfere with work. With its help, it is not always possible to get to hard-to-reach places and often it has high unregulated speeds, by the way, because of this, increased safety measures are required. But, despite all this, in certain cases it is irreplaceable. We can take advantage of all the advantages of an angle grinder, and also bypass its disadvantages. To do this, it will be enough for us to get hold of a drive shaft with flanges from an angle grinder (I took it from an old, damaged one).

Grinder from a drill in photo explanations

1 Drive shaft 2 Inner flange 3 Outer flange 4 Outer flange wrench 5 Metal cutting disc

We collect in the following sequence

We put the inner flange on the shaft so that it fits into the grooves, then tighten the outer flange.

Only the outer flange is tightened with a special wrench; the shaft is held in place by an open-end wrench on the reverse side of the inner flange.

For work, install a cutting (or other) disc

After installation, we tighten it and install it in the drill chuck; we also tighten the shaft in the chuck well.

Ready! Since the drill has a reverse, the working rotation must go clockwise, as when drilling. The arrows (in the photo) indicate the mandatory direction of movement of the disk; in this case, the outer flange with an internal (regular right-hand) thread will tighten itself and will not unscrew during operation.

You ask: “Where can I get a shaft from an angle grinder if I don’t have an old, faulty one?”

1. In a power tool repair shop
2. Order a turner
3. Build your own version from scrap materials
4. Perhaps there is a rem. kits (not interested)

I’ll share that I worked with this device this season and got a lot of pleasure from the maneuverability and the ability to adjust the speed of rotation of the disc if necessary. I think that, given the opportunity, you will evaluate everything yourself.

Good luck with your renovation!

—————————————— I’ll say right away that the idea of ​​​​using a drill instead of an angle grinder is not mine, I just saw it for the first time at the master “body maker” Alexander Borchaninov.

Assembling the unit for fixing the disk

The assembly of the mechanism on which the cutting wheel will be installed and fixed deserves special attention.

It can be made from a small piece of pipe of a suitable diameter and a piece of a pin on which pressure washers for the disk could be installed.

The mechanism is fixed to the electric motor shaft of a homemade angle grinder using two hexagon bolts.

To install them, holes are drilled on both sides of the pipe, after which, using a tap, it will be necessary to cut a thread for tightening the bolts.

Be sure to use personal protective equipment when working with a homemade grinder.

Even if such an angle grinder does not have as much power as a real one, it still remains one of the most traumatic tools.

Option #1

The general view of the machine (although it is more of a device) is shown in the figure:

Its components are an angle grinder () and a pipe, which simultaneously performs the function of a frame and a working handle. It is not difficult to attach the grinder to it using a metal plate made of a thick piece of iron - it will take no more than half an hour. The support for the structure can be made from the same metal sample by welding a corner to it. The end of the lever is mounted on an axis, and its return motion is ensured by a spring.

This model is convenient because it is light in weight and can be installed almost anywhere. And assembly will not require any costs - everything you need can be found without difficulty.

The principle of creating basic mechanisms

The greatest difficulties await the craftsman during the period when he begins to manufacture the main swing arm. In this case, it is necessary to ensure reliable fixation and clamping of the angle grinder, its rotation by 90˚, as well as careful return of the grinder when no load is applied to the rotary handle. The overall design of the swing arm must be designed so that it can be attached to the rack.

It is also worth considering that the swing arm must include a vertical stand, which is securely fixed to the base plate. High-quality work is impossible without a console with an axle and a universal bearing mechanism (they will ensure smooth rotation of the angle grinder), as well as return springs and a clamping device located on the opposite side of the structure.

Experienced craftsmen claim that in order to reliably fix a homemade frame for angle grinders, it is necessary to adhere to the following design solutions:

• Multifunctional steel stepladders that will ensure the tool is grasped in the required section.
• An open prism shape that can be welded from corners (their opposite sides must be compressed with a clamp).
• Reliable fixation with two bolts with persistent threads, which must be located on both corners. Thanks to this, the grinder is pressed by rotating the high nuts.

At the final stage, the wizard needs to install inclusion elements. Experts recommend providing not only remote control of the instrument, but also connecting a pedal. This is due to the fact that during active work, both hands of the master are busy, and sudden problems with cutting or grinding can lead to serious injury to the operator. It is worth considering that the magnetic type of starter is considered the most effective.

The already assembled unit is initially tested for functionality by manually rotating the cutting disc. The master’s task is to determine the source of the unit’s beats if an error was made in the alignment at the time of design of the unit. Only after this can you turn on the angle grinder at the lowest speed to identify possible vibrations.

Originally posted 2018-07-04 08:13:58.

How to make a grinder from a drill: the repurposing process

Tools and materials:

1. drill;
2. rod;
3. rasp;
4. lubricant;
5. grinder attachment;
6. ruler.

Before you make a grinder from a drill, you need to make sure that this tool will not be needed at this time for other work. After all, assembly and disassembly takes some time. A grinder made from a drill will not be as easy to use.

You can make a grinder out of a drill with your own hands in a simple way:

1. Select the attachment for the grinder that will be used to do the work. Any option is suitable, because... production for one-time work.
2. A steel rod of small diameter is selected, the edge of which needs to be ground off so that it fits into the nozzle. The contact points between the petals of the cartridge and the rod are slightly ground down for better adhesion.
3. Fixation.

Here everything is done in a matter of minutes, but immediately after dismantling the structure will become inoperable, or even completely fall apart. A similar modification is done in cases where you urgently need to make a grinder out of a drill, because... The main one is out of order.

The more complex option is not much different, but it still requires a lot more work:

Layout diagram of a grinder drill: 1 - drive (electric drill), 2 - work table (duralumin, sheet s5), 3 - circular saw, 4 - stand (St3, strip 20×5, 4 pcs.), 5 - support mandrel shaft holder, 6 - mandrel, 7 - electric drill holder, 8 - base plate (furniture chipboard).

1. First, the cartridge is removed. It will now be needed only for reverse restoration, but for now it is advisable to simply clean and lubricate all its insides. Store only in a dark, dust-free place.
2. An attachment for the grinder made of durable steel is selected (lightweight options are often found, which in no case should be installed here).
3. At this stage, you will need a rod of such length that it extends 1.7-1.9 cm beyond the drill. Its end is ground off with a rasp so that it ultimately matches perfectly with the socket in the nozzle. Before joining, you need to use machine oil or any other lubricant.
4. A ball bearing is installed at the outlet location, and a rod is threaded through it and fixed in the base. Sometimes this step is not required, so the rod can simply be locked in place.

This method can be implemented in a matter of hours, and dismantling and installing the cartridge in minutes. Once the structure has been assembled once, it will no longer need to be changed or supplemented in the future. It is worth remembering that in this case no protection is installed, so there should be no people on the sides when working. You will not be able to injure yourself due to the fact that the disk rotates parallel to the master.

Making a mini grinder

The most important part is to place the bearing on a slightly processed (using a drill and file) mat stand. computer board and press in the cable.

We disassemble the alligator clip and use a homemade clamp to attach the bearing to it. We secure a piece of the speedometer cable with plastic clamps.

We place the electric motor itself, together with the relay, in a can of sealant cut to size (we fill the voids with pieces of rubber). Additionally, we secure it with a bolt that rests against the motor housing to prevent it from turning.

The cutting disc is also homemade. We make a protective casing for it from plastic.

The electrical circuit is simple: pressing the mini-button turns on the relay, which in turn closes the power contacts and supplies voltage to the electric motor.

After assembly, we get a new design with an unusual motor location. When working, we hold the tool in the same way as a regular grinder, only now it has become more mobile.

The simplest device for an angle grinder stand

Actually, this device cannot be called a stand, but the work with it can be done almost the same as that provided by the most technologically advanced stand. The principle of its operation is clear from the short video:

But if instead of a strip you use a corresponding corner with a sawn-off part of one of the shelves, as one of the authors of a similar design did, then there will be no need to drill a blind hole in the head of the angle grinder.

In this case, the tool will be fastened with two screws into the threaded holes for the handle existing on the head of the angle grinder. But the principle of operation of the sole will not change - only its rigidity will increase.

The method of using an angle grinder as a kind of circular saw using the same sole, shown in another video by the same author, will also not change:

Mini cutting machine

To make this homemade product we will need:

• metal plate;
• furniture hinge;
• strip of metal;
• bolts with nuts.

We cut the metal plate to the required size and drill holes for the legs in the corners. We make markings and drill three more holes to secure the furniture hinge.

A strip of metal will need to be attached to the second part of the loop. We cut off the edges of the loop with a grinder - leaving only the central part.

It is necessary to drill two mounting holes in a strip of metal, and then cut threads into them using a tap. We screw the angle grinder to the strip.

Bolts are used as the legs of the cutting machine. We screw them into the drilled holes and secure them with nuts. You can additionally glue pieces of rubber to the bolt heads.

A support for workpieces can be made from a piece of corner. But in this case the author uses two bolts.

Construction of cutting machines

When designing a homemade cutting machine from an angle grinder, the following factors should be taken into account:

1. The bed, or base, must be strong enough, stable, and heavy. For reliability, it must be attached to a workbench or table.
2. Cutting equipment must be positioned strictly perpendicular to the base.
3. The cutting wheel feed mechanism is equipped with a return spring or counterweight to prevent damage to the abrasive disc.
4. For convenience and safety of work, the design is equipped with a handle. The best option would be if the angle grinder can be lowered by the standard handle.
5. The protective cover prevents sparks from entering the worker.
6. Clamping device. Securing the workpiece is a necessary requirement for obtaining a quality cut.
7. If you plan to cut a large number of workpieces of the same size, then the design can be equipped with a movable stop.
8. Starting device or emergency shutdown. Constantly turning on the grinder with a standard switch is inconvenient. And specialized starting devices have internal protection.

https://youtube.com/watch?v=UFpkbjDo4Q8

How to make a start button for a pendulum machine from an angle grinder

The angle grinder works when you press a button. Moreover, the spindle rotation speed depends directly on the pressing force of the button. This means that an adjustment mechanism is built into the button, the operation of which facilitates the operation of the tool. When operating an angle grinder on a stationary machine, it is necessary to consider the starting system so that you do not have to hold the handle with one hand and press the button with the other.

If the tool is equipped with a regular button, which automatically locks when it is turned on, as for example in the first version of the machine, then no difficulties arise here. First, the tool is turned on, and then you can perform work. However, most angle grinders are equipped with self-off buttons that must be held by hand while operating. There are two ways out of this situation:

1. Use ties (for example, plastic) or clamps of the appropriate diameter. They fix the button in the pressed position. In this case, it is also necessary to take into account the latch, which is responsible for turning the tool on automatically. Both the latch and the button must be tightened with a clamp, tie or other similar materials. In this case, the principle of operation of the device will be as follows - if you need to start the tool, you need to plug the plug into a socket or make a switch
2. It is rational to remake the starting system if the tool is planned to be used more often as a cutting machine than as a stand-alone angle grinder. To do this, it is necessary to route the wires from the angle grinder to a separate switch, which will turn the tool on and off if necessary.

The power button, if it is displayed, is best located on the handle. A homemade machine does not require large expenses for its production, which, in fact, is its main advantage.