Attachment for an angle grinder: Do-it-yourself wall chaser from an angle grinder

A little about gating

A groove (the term “furrow” is less commonly mentioned) consists of two parallel grooves, the width and height of the walls of which determine the possibility of installing communications in it. To make grooves, the following groove dimensions are required:

Width from 3 to 50 mm (the first option provides for laying only power and low-current cables in the groove, the second - for installation of heating system pipes);
The depth of the groove is no less than its width, but it is better with a small margin of 5...10 mm;
The bottom of the groove is smooth, without protrusions.

Sometimes you have to cut inclined grooves. For oblique grooves, all specified dimensions are usually increased by 10...12%. The groove should be as even as possible, since any slope of the groove will automatically increase the length of the cable or pipe. The distance from the groove axis to adjacent ceiling structures, openings, etc. must be at least 150 mm, and to the gas pipeline elements - at least 400 mm.

The material of the walls also matters. Since the groove is obtained by removing material from under the tool disk, all dust and stone fragments fall into the worker. Even when performing such work in walls made of foam or aerated concrete, the need for dust collection is very important, since fine dust will remain in the air for a long time.

In a professional wall chaser, all these problems are solved by connecting a vacuum cleaner with a cyclone filter to the tool. Ordinary mesh ones will become clogged with gating products within a few seconds of continuous operation of the wall chaser.

The second significant difference between gating with a specialized tool is the presence of a movable frame with wheels, which, when controlled, can significantly reduce the load on the worker’s hands. A single-disc wall chaser attachment for an angle grinder does not fundamentally solve the problem, since the depth of the groove is not limited in any way, and manual removal of the jumper is very labor-intensive and does not ensure good quality of the bottom of the resulting groove. In addition, during the second pass it will not be easy to achieve parallelism of the walls of the groove.

Wall chaser for foam blocks - design features

Manual tools for grooves can be manufactured in the following design options:

based on a regular grinder. The design provides for the installation of two concrete cutting discs on the device shaft, between which a sleeve of the required length or the required number of washers can be installed. By changing the length of the spacer element, the interval between the cutting discs is adjusted, corresponding to the width of the channel;
modernized version. It is an improved version of the grinder, on which, in addition to two circles, a casing made of metal sheet is mounted. Dust generated during the gating process is removed through a pipe attached to the metal casing of the aspiration device;

Wall chaser based on a regular grinder

based on a hand grinder. An improved version of the tool is similar in design to a grinder with an aspiration casing. A distinctive feature of the design is the presence of a mobile platform with wheels, fixed at the bottom of the dust receptacle. This option allows you to easily move the device along the wall without applying significant effort.

An electric wall chaser for a gas block is more efficient than a manual tool due to the following points:

increased cutting speed;
smooth surface of the groove walls;
clear channel geometry;
increased security;
aspiration possibilities.

Modern electric scoring tools include:

protective casing. It prevents the operator from being injured by fragments when rotating the disks;
aspiration pipe. Provides dust extraction from the work area when connected to a vacuum cleaner;
work site. Provides smooth movement of the device along the wall and allows you to adjust the depth of the groove;
working handle. It can be installed in various places of the casing, providing a convenient location for the device when cutting;
electric drive. Accelerated slitting is provided with a power of 2 kW and a spindle speed of 5500 rpm.

Hitachi CM7MRU wall chaser The device can be equipped with various electronic equipment that provides the following functions:

spindle speed adjustment;
smooth engine start when turned on;
disk braking when the power is turned off;
motor blocking when heating;
reduction of vibration vibrations.

How to properly operate a manual wall chaser on aerated concrete

After assembly, you should check the functionality of the device on a pre-marked cutting area and learn operating skills. Sequencing:

Assemble the discs with the bushing on the shaft and tighten them with a nut.
Set the required groove depth and turn on the aspiration unit.
Press the power button after connecting to the network.
Touch the marked surface and groove.

The device should be moved after the discs are immersed to the desired level. It is important to monitor engine heating and periodically stop the engine to cool.

How to make a wall chaser from a grinder with your own hands

The two main differences between an angle grinder and a wall chaser are an extended spindle and a casing with a dust extractor. Buying a ready-made wall chaser is too expensive. And if you need to lay several communications in the apartment, then there is no point in spending so much money. You can make a furrower yourself from a grinder.

To install two discs on an angle grinder you will need a second clamping nut:

Remove the seat washer from the angle grinder spindle and grind it down to make it thinner. Then the second clamping nut will tighten better on the spindle. You don’t have to grind it down, but simply buy a thinner washer from another model of grinder.
Install the first disk and tighten the clamping nut.
Place the second disc on top and secure it with another nut.

Such a groove is quite enough for laying cables in domestic conditions. But if this is not enough for you, you can increase the width. Take the extended spindle and install the discs as on a wall chaser. If there is no spindle, then you can go another way:

On a lathe, make an elongated nut with an internal thread, like the spindle of an angle grinder, and an external thread for the clamping nut, which also needs to be made. Take several washers to adjust the width of the groove.
Screw the extended nut onto the grinder spindle.
Install the first disk. Then the required number of washers and a second disk.
Secure the structure with a clamping nut.

Now you need to make a special casing for your angle grinder.

Ready-made factory casing for an angle grinder

A protective casing with a depth regulator and a dust extractor can be purchased or made independently according to specific dimensions.

Height and length of the casing for the wall chaser

Distance D1 from the casing to the disk on the dust collector side is 45–50 mm. It should not be pressed tightly against the circle. The opposite gap D2 between the disk and the casing is 15–20 mm. The housing dimension A is the sum of these gaps and the diameter of the diamond blade D: A = D1 + D + D2. The height B of the casing is 1 cm greater than the diameter of the disk D: B = D + 1. The length and width of the platform should protrude beyond the casing and the angle grinder by 5–10 mm. The fitting for attaching the hose is installed in the front of the casing, as the disk rotates clockwise and the wall chaser moves forward. Dust will directly fly into the fitting hole without making circles inside the casing. You can install a pipe for a vacuum cleaner in the back of the casing, then the angle grinder needs to be secured to the right.

Dust circulation during wall chaser operation

To make a casing you will need: a pan with a radius of at least dimensions A and B in the drawing, a profile pipe, a metal sheet 1.5–2 mm thick, a clamp with the fitting diameter of the standard casing of an angle grinder, a bend with a diameter of 1 inch and a quarter, a plumbing outlet with a diameter of 40 mm .

To make the sole, take a profile pipe. Cut it lengthwise and weld two parts perpendicularly.
Cut out the cheeks from a metal sheet and weld them to the sole.
Take the pan and cut it.
Make a hole in the bottom with a diameter similar to the standard casing of an angle grinder.
Weld the clamp.
Cut off the part of the pan below the opening. Cut out the amplifier from metal and weld it.
Make a side frame for the casing from a metal sheet.
Boil it to the pan.
Cut a fitting from the squeegee and weld it to the hole in the pan.
Take a plumbing elbow and place it on the pipe. Thanks to the internal elastic band, the outlet is firmly attached and can be rotated in any direction. It will include a hose from a vacuum cleaner.
Drill a hole at the top of the pan and secure any handle with a bolt. For example, wooden.
Insert the rollers into the sole and secure with lock washers. To adjust the cutting depth, use a screw with a lock nut. Assemble the device.

The grinder is inserted into the casing from the clamp side.

Video: making a wall chaser with your own hands

Knowing the basic elements of a wall chaser, you can easily make one yourself. For safe operation, the casing must be made of rigid material to prevent injury if the disk breaks or breaks. If the dimensions of the casing are respected, dust removal will work effectively.

Production

Technology for installing components on an angle grinder:

The first disk is tightened with a nut according to the standard principle,
Then the second disk is installed and also tightened with a nut,
A protective casing is installed, as well as a vacuum cleaner motor and a dust collector.

If the thread on the angle grinder is too short, it is not recommended to take risks, even if you manage to tighten the nut well. It may be dangerous. In such a situation, you can make an improvised nut using a set of metal washers or a ring of suitable width. The ability to change the number of washers is convenient in that the appropriate groove width is selected corresponding to the wire cross-section. To operate a manual angle grinder, not just any circular saw is used, but special discs that cut, for example, foam concrete quickly and efficiently.

During gating, dust may fly throughout the room, which often requires the use of a vacuum cleaner to remove. The features of the dustproof cover on angle grinders differ in many cases. For this reason, the design of the angle grinder will require some changes.

Why do you need to trench a wall?

So, gating is the gouging of grooves in walls and ceilings for laying electrical wiring and piping systems. To lay and hide electrical, antenna or telephone wires and cables, we also use gating. When installing an air conditioner, the wall also needs to be tapped.

If you need to hide existing wiring, we make a channel (groove) in the thickness of the plaster or concrete, lay wires or cables there and putty. We also hammer walls when it is necessary to mount internal models of electrical sockets or switches.

Such models are built into the wall, so you need to make a round hole corresponding to the size of the switch or socket.

Main types

Equipment is usually divided into categories:

with electric drive for processing hard materials;
with manual rotation of the cutting tool (used for walls made of foamed concrete);
with installation on an angle grinder (grinder).

Manual

The hand-held device is a curved metal pipe with an additional handle, equipped with a double steel cutter, secured with a bolt and nut.

The operator presses on the tool and simultaneously pulls it along the surface being processed. The equipment is designed for occasional processing of soft building materials (for example, cellular aerated concrete). The product is not used for cutting brick or concrete partitions.

Electric

The power drive allows you to work with hard materials and increases productivity. A tool with a pair of rotating parts allows you to produce grooves of different widths, and a moving platform allows for depth adjustment.

There is simplified electrical equipment with 1 disk, which allows you to make fines and cut concrete blocks, tiles or metal profiles.

Popular models

There are several manufacturers of equipment with electric drive for cutting fines on the Russian market. To reduce production costs and logistics costs, the tool is produced in China.

A number of companies declared as Russian (for example, Interskol or Fiolent) also widely use Chinese components for assembly.

"Interskol PD-125/1400E"

The equipment is equipped with an electric motor with a power of 1400 W. The rotation speed of discs with a diameter of 125 mm reaches 9500 rpm.

The adjustment mechanism allows you to cut furrows to a depth of up to 30 mm, and the width is smoothly adjustable in the range from 3 to 29 mm. The engine is equipped with a smooth acceleration system and protection against unintentional starting and overheating; the casing is designed for switching a vacuum cleaner.

Advantages:

low price;
stepless adjustments.

Flaws:

poor quality of materials and workmanship;
lack of power to cut fines of maximum size.

Makita SG150

The Makita SG150 design uses a 1800 W motor designed to drive a tool with a diameter of 150 mm. It is possible to cut furrows with a width from 7 to 35 mm and a depth of up to 45 mm.

The no-load rotation speed reaches 7800 rpm. When cutting, the speed drops (there is no support system provided). The tool comes in a plastic case. It is possible to reinstall the side handle and switch the vacuum cleaner.

Advantages:

high power;
low noise level;
high reliability of the electric motor and gearbox;
overload alert.

Flaws:

inconvenient tool mounting nut;
handles designed for horizontal cutting from right to left;
dust emission through furrows;
heavy weight.

Bosch GNF 35 CA

The equipment with a 1400-watt motor is designed to cut furrows up to 39 mm wide and 35 mm deep. The lid has a connector for a flexible hose connected to a construction vacuum cleaner. There are 4 rollers installed on the plate, and ergonomic handles reduce the load on the operator’s hands during long-term work.

Advantages:

high quality workmanship;
thoughtful ergonomics of the handle;
light weight;
protection against accidental activation.

Flaws:

inconvenient location of the power button;
insufficient power;
high cost of spare parts;
poor protection against dust emissions.

"Fiolent"

The B1-30 furrow machine is equipped with a 1100 W motor that rotates discs with a diameter of 125 mm at a frequency of 6200 rpm. There is a function to support speed under load, the groove width reaches 30 mm.

The gear housing is made of aluminum alloy to ensure heat dissipation. The engine is equipped with ventilation slots to prevent dust from accumulating inside the casing.

How to make a furrow machine from an angle grinder with your own hands + step-by-step photos

If you need a wall chaser, but there is no opportunity or desire to buy an expensive tool, there are three ways to get out of the situation.

A. Rent a furrow machine.

B. Buy the desired attachment for an angle grinder in a store.

B. Make a wall-cutting attachment yourself.

The first two options are clear without comment. Let's discuss the third in more detail.

First of all, you need to know that to make your own wall chaser you will need:

Bulgarian. It must be powerful enough to rotate not one disk, as usual, but two. A low-power tool will simply burn out, so you should get down to business if you have an angle grinder from 1.2 kW.
Sheet iron, thickness from 2 mm.
Metal pipe with an internal diameter of 50 mm.
3 or 4 wheels with a diameter of 20 to 30 mm. Bearings can be used.
A set of metal spacers to adjust the distance between the discs. Making them at home is problematic; it is better to order them in advance from a qualified turner.
Several sections of small diameter pipes, screws, nuts, etc.

The required tools include a grinder, a welding machine, as well as basic plumbing tools - a vice, files, a hammer, a ruler, a caliper, etc. In addition, you will need paint (alkyd for metal or any suitable nitro enamel) and a brush.

Materials required to assemble a wall chaser

Note that here we are considering one of the many options for making a furrow maker

Models may be different, but the main thing you should pay attention to when choosing is the reliability and safety of their use. Some craftsmen manage to make a wall-cutting attachment for an angle grinder even from scraps of laminate, but you cannot work with such a tool for a long time - the risk of injury or suffocation from concrete dust is too great. The wall chaser casing is assembled from laminate scraps

The wall chaser casing is assembled from laminate scraps

When starting to make a homemade wall chaser, you need to make working drawings and decide which parts you can make yourself and which you can order from a turner. You also need to soberly evaluate your welding skills - connecting metal elements into a single whole requires accuracy and the ability to make high-quality, sealed seams.

One of the options for a homemade furrow maker

So, the sequence of work for welding the casing is as follows:

A sheet of iron is cut to weld the casing body.
The two lateral planes (cheeks) should be congruent. The upper plane is first welded to one cheek, then a second one is added to them, with a slot for moving the grinder with discs. It is very convenient to cut parts from a metal sheet using an electric jigsaw using a metal file. But if you don’t have a jigsaw, you can carefully cut it with a grinder. The thickness of the metal sheet must be at least 2 mm
The holder for the grinder is cut out and a clamp with a clamping mechanism is welded to it.
The clamp screws can be socket or Phillips screwdriver. The diameter of the clamp is selected in accordance with the diameter of the available angle grinder. Usually it is identical to the size of the standard casing from an angle grinder. Clamp for securing the angle grinder
Two support strips with holes for the wheel axles are welded to the assembled casing.
blow
An exhaust hole for dust is prepared and a dust extraction pipe is welded to it.
An additional seat for the handle must be provided on the pipe - on the left side (along the groove) a branch with an internal thread is welded to it. The thread dimensions must correspond to the threads of the standard handle of the angle grinder. Dust extraction pipe
A bolt is welded to the finished casing to secure the angle grinder holder.

For ease of work, all sharp corners and burrs on the body are ground off with a file, the surface is ground to remove welding “spatter” and cleaned of rust or oil stains. The finished parts are coated with a layer of paint and allowed to dry thoroughly. Before painting, you can assemble the entire structure and test it in action.

Final result

If everything worked out according to the plan, the wall chaser is completely assembled and tested. To install two diamond discs instead of one, you will need metal washers of varying thicknesses. Their dimensions must exactly match the size of the spindle, and the diameter of the hole must correspond to the rotation shaft. Play and beating are unacceptable; under load and at high speeds, the tool can break out of your hands and cause injury.

To ensure that the vacuum cleaner does not interfere during operation, it is recommended to use an extended hose, at least 2 m in length. As well as an extension cord with two or more outlets.

Design and principle of operation of the furrow maker

Main design elements of the tool:

The engine is enclosed in a durable plastic housing.
The gearbox is located in a metal housing.
Handle for carrying and holding while working.
Main operating handle with start button.
Protective metal casing.
Connection for connecting the vacuum cleaner hose.
Non-slip rollers allow you to move the tool without much effort.

How does a wall chaser work:

First, connect the vacuum cleaner hose to the fitting.
A diamond disc is placed on the spindle.

The first disk is put on the spindle

Several washers to adjust the groove width

The discs are installed and secured with a pressure washer

When you turn on the tool, the engine starts running. Its rotation is transmitted to the gearbox and then to the spindle with disks. The wall chaser is immersed into the surface of the material being processed to a set depth. The master holds the tool with both hands and moves it in the desired direction. The discs cut furrows as they move. Dust is sucked into the hose through a pipe in the casing.

Assembling the wall chaser

If you have a new nut, all that remains is to assemble a homemade furrow maker as follows:

mount the first circle on the shaft;
install the bushing that was made together with the nut;
place the second cutting disc on top;
we pass the modernized nut through it and tighten it until it stops; As a result, the fastening element fixes the first disk and prevents the second one from jumping off the shaft.

At the last stage, a protective casing is installed, to the nozzle of which the vacuum cleaner hose is connected.

Design and principle of operation of a wall chaser

To find out how the tool works, you need to understand the variety. According to the type of drive, all wall chasers are divided into two types:

Manual models are a curved pipe with handles.
At the end of the metal frame there is a steel element that acts as a blade. It is he who cuts the groove by repeatedly pushing the wall chaser with his hands along the surface being processed. Using a hand tool, grooves are cut using manual effort.
Electric wall chasers work on the principle of an angle grinder.
The tool has a body with handles. An electric motor is installed inside. Depending on the model, 1, 2 or even 5 diamond discs are put on the spindle. The casing covering the cutting wheels is designed differently from that of an angle grinder. It is closed on both sides and in most models it is equipped with a connection for connecting a vacuum cleaner. Electric wall chasers have a diamond disc as their working element.

Before using any wall chaser, markings for the grooves are first applied to the processing surface. The next steps vary depending on the model you are using.

It will not be possible to cut a perfectly smooth groove and the same depth in all areas using a hand tool.

Hand tools are often used to cut grooves on foam blocks when building walls to perform reinforcement. Ideal evenness and the same depth in all areas is not important here. After laying the reinforcement, mortar will still be poured into the groove. If you cut grooves on the wall for wiring, then it is optimal to fasten a guide board near the marking line to ensure the groove is even. The wall chaser is pulled with your hands from top to bottom until the blade cuts the groove to the required depth. At the end of the work, the guide board is moved to another section of the wall and the steps are repeated.

Working with an electric wall chaser is no different from using an angle grinder

Before you start using the electric wall chaser, use the adjustment mechanism to set the cutting depth on the casing. The markings are applied taking into account that the groove will be slightly to the side. The fact is that during gating they follow the lines with the side of the sole. If you try to immediately cut with a disk according to the markings, the groove will turn out uneven, since it is not visible under the tool casing.

The cut is made from top to bottom. After cutting the entire strip, the central part remains between the cuts. It is knocked out using a hammer and chisel. To speed up the process, you can use a hammer drill.

The caveat of working with electric tools is the formation of a large cloud of dust. If the repair is carried out inside a living space, it is optimal to connect a vacuum cleaner to the wall chaser casing. Manufacturers provide special pipes for this. During gating, only a small part of the dust gets inside the room. The bulk of the dirt is sucked in by the vacuum cleaner.

What recommendations and tips to consider when gating

You can begin the procedure for preparing grooves indoors immediately after making your homemade product. When punching a groove, one important nuance must be taken into account - the work should be carried out in a room where the location of the electrical wiring is previously known. If a live wire is encountered along the path of the tool, the result of such an encounter can be fatal for the master.

It is necessary to carry out gating work with both a conventional wall chaser and an angle grinder, taking into account the following tips and recommendations:

Procedures can be carried out in vertical or horizontal directions. Grooving at an angle is possible in extremely rare cases, when it is necessary to bypass a decorative element or communications. Horizontal grooves must be performed exclusively at a distance of up to 15 cm from the floor slab. Vertical grooves must be located at a minimum distance from doors and windows 10 cm When carrying out work, it is important to take into account the depth of the groove. It is necessary to select the depth depending on the type of communications that are planned to be laid in the groove, as well as the thickness of the wall itself

If this wall is load-bearing and external, then the depth of the groove should not be more than 3 cm. The width of the groove is also selected depending on the technological task, but it is not recommended to exceed the permissible limit of 2.5-3 cm

After laying communications, the groove should be sealed with cement mortar. The location of the groove should be leveled with the plaster of the wall. It is recommended to carry out gating work at the construction and repair stage before plastering the walls.

It is not at all difficult to make a wall chaser for concrete from an angle grinder, and if you set yourself such a goal, then everyone can achieve it. When drawing a conclusion about the work done, it should be noted that when chipping, you need to take breaks to allow the power tool to cool down. If the cover does not have a connector for connecting a vacuum cleaner, then work must be carried out in a respirator. Glasses must be worn in any case, as various small particles can get into the eye.

Depending on the type of material that is being cut, it is necessary to select the appropriate speed of movement of the tool. If you come across reinforcement in a concrete wall on the way, it is recommended to saw it with an abrasive wheel

It is necessary to use a wall chaser on wood with extreme caution, not forgetting about the kickback

Sources

https://kustari-f.ru/dom-s-nulya/pylesos-dlya-shtroboreza-svoimi-rukami.html
https://obrabotkametalla.info/pilit/vybiraem-nasadku-shtroborez-na-bolgarku-ili-pilu
https://prorab.guru/insrtrument/kak-sdelat-shtroborez-svoimi-rukami.html
https://sdelairukami.ru/3-prostyh-idei-kak-sdelat-shtroborez-svoimi-rukami/
https://bouw.ru/article/shtroborez-nasadka-na-bolgarku
https://www.asutpp.ru/shtroborez-svoimi-rukami.html
https://moiinstrumentu.ru/nasadka-na-bolgarku-shtroborez-samostojatelnoe-izgotovlenie.html

Accessories for grinding machine

Considering that the design of a furrower is similar to a grinder, craftsmen have learned to make wall chasers from an angle grinder with their own hands. These mechanisms cut concrete walls without dust; for this they adapt a vacuum cleaner. Installing a groove in a concrete wall is a difficult task. Powerful machines are used for this operation. This is not possible at home, so craftsmen use a grinding machine and a diamond wheel to cut concrete. To reduce dust in the room during operation, install a homemade nozzle connected to a vacuum cleaner.

The design of the nozzle is simple. A section of sewer pipe with a diameter of 60 and a length of 500 millimeters is attached to the lower part of the angle grinder body using construction tape. Make a 20 mm wide cut on the upper wall of the pipe end to allow the cutting tool to enter. During operation, the circle rotates counterclockwise, then all the dust and concrete fragments fall into the pipe, where they are captured by the air stream and fed into the vacuum cleaner’s storage tank.

An angle grinder is designed mainly for grinding the surface of a material and cutting metal, so a cutting tool in the form of a thin disk is used. To chisel walls, you need a grinder with two discs. Installing two drives is not difficult. To do this, you need to buy a clamping nut in the store. Then a diamond disk and a special nut are installed on the seat of the machine, on which the second diamond wheel sits and is secured with the purchased nut. The created mechanism can easily be called a wall chaser.

Homemade protective casing

Safety when working on homemade equipment cannot be neglected. All grinders have high speeds, which can cause the circle to break and injure the worker. Therefore, you need to ensure that the mechanism has a protective casing. The efficiency of work largely depends on the power of the machine and the density of the material being processed. There are many different problems that determine the optimal characteristics of choosing a diamond wheel, especially when it comes to selecting a cutting tool for high-performance cutting.

In order to reliably protect yourself from the effects of dust and damage from rupture of the cutting tool, experienced specialists suggest making a closed casing with a pipe for the angle grinder for wall slitting. The design of the homemade product is simple. The idea was taken from a standard casing, a platform, a side cheek, a pipe and a cutting depth regulator were added. Drawings for the product are made in the form of sketches as work progresses, taking into account the availability of the necessary materials. Manufacturing process:

The platform is made of sheet steel 2 mm thick. Base size 250x90 mm. A window is cut along the center line for the exit of the cutting wheel.
A hinge is welded on one edge of the base to adjust the cutting depth, and on the other there is a bracket with a slot for fixing.
The cheeks are made of steel sheet two millimeters thick. The shape is in the form of a semicircle, covering two thirds of the cutting tool.
The width of the casing is 40 millimeters. The hinge axis is welded at one end, and at the other there is an M6 pin with a wing for fixation.
The outer cheek has a connection for the vacuum cleaner hose and a clamp for attaching to the neck of the angle grinder.

Furrow maker for aerated concrete

Aerated concrete, compared to concrete, is easier to cut, so you can use any power tool that you have in your home workshop: a drill, a hammer drill, a hand-held circular saw. The idea goes like this. Buy a key cutter for metal, install it in a hammer drill and mill a groove according to the markings. To make the operation easier, you need to make a simple nozzle from wood. To do this, you will need two slats 300x50x30 millimeters, two pieces of wood measuring 300x150x20 mm.

Technological process for manufacturing the device:

Make a sled. To do this, attach two prepared slats with screws to the base, in which a hole is cut for the cutter to exit.
Attach a bracket made of boards perpendicularly to the base to support and secure the power tool.
Make a plank carriage with a hole for the neck of the hammer drill.
Before work, set the cutting depth by placing wooden blocks under the carriage and base.

Preparatory activities

Since factory-made wall chasers have a price of 5.5 thousand rubles. (budget models, professional-level equipment will cost 50-60 thousand rubles), then for home repairs they use homemade attachments for a grinding machine.

The grinder must have a motor with a power of at least 1500 W, since installing a double disk increases the load on the drive.

Required tools and materials

To make the device you will need:

Scraps or a piece of carbon steel sheet with a thickness of 1.5 to 3 mm, required for the shield. Constructions made of plastic or plywood should not be used due to low mechanical strength and insufficient resistance to the effects of a flow of heated dust.
Steel tube suitable for connecting a vacuum cleaner arm (directly or through an adapter).
Tool for cutting workpieces, drilling holes and cleaning welds.
Welding inverter and protective mask.
Measuring and drawing tools.

Drawings and diagrams of nozzles for chipping

The angle grinder has a standard protective screen, which is used as a template for marking workpieces. The master can develop sketch drawings of the nozzle, focusing on the power of the electric motor, the dimensions of the grinder and the diameter of the cutting tool.

When manufacturing the device, the increase in the weight of the wall chaser should be taken into account. Heavy equipment is difficult to hold horizontally when cutting long furrows.

Attachment - wall chaser for an angle grinder: characteristics of the device

To lay communications such as electrical wires, water and heating pipes into walls, they resort to the use of a specialized tool - a wall chaser.

Such a tool has significant drawbacks - it is quite expensive and has a narrow focus.

But don’t be upset, as there are special wall-boring attachments for angle grinders on sale.

Why is this process necessary?

The design of a standard wall chaser has much in common with a grinder or angle grinder. A significant difference between a wall chaser and an angle grinder is the high speed of work, as well as the ability to conveniently regulate the depth of the cut groove. It can create a groove of the depth required depending on the assigned technological tasks.

A grinder is an excellent analogue of a wall chaser, since it can be used to carry out repair work in residential and non-residential premises where it is necessary to make special grooves or channels for laying pipes and electrical wires. In order to use the angle grinder as a wall chaser, you will need a special casing. It will allow you not only to adjust the depth of penetration of the cutting tool, but also to carry out work without dust.

In most cases, when it is necessary to make a groove in a wall, craftsmen resort to the use of the following tools:

chisel with hammer;
perforator;
Bulgarian.

It is important to know! Only if the master’s work is directly related to the need to make channels in the walls every day, then it is better to purchase a professional wall chaser. If you need to cut a channel in the wall when carrying out repair work, then an angle grinder is quite suitable for these purposes.

Moreover, there is no need to purchase a special wall chaser attachment for an angle grinder, since you can make it yourself

If you need to cut a channel in the wall when carrying out repair work, then a grinder is quite suitable for these purposes. Moreover, there is no need to purchase a special wall chaser attachment for an angle grinder, since you can make it yourself.

How to make a groove using a regular grinder

Scoring with a grinder can be done in walls made of brick, concrete, cinder block and other materials. In order to make a groove with a grinder you will need:

Apply markings. To do this you will need a tape measure, a rule or level, and a pencil. The lines to be drawn should be bold, since when the grinder is used, dust is released, which may make the markings invisible.
Cutting out the grooves. You should follow the drawn lines with a grinder with a diamond cutting disc, but keep in mind that you should hold the tool with both hands, and the work should be carried out in protective devices: glasses, a mask, gloves.
Knocking out or removing plaster. At the final stage, you will need to use a hammer and chisel to remove the plaster between the cut lines.

It is important to know! Sometimes experts use two instead of one fixed disk on an angle grinder, which allows them to get a finished groove in one pass. This significantly saves time and physical effort.

The main disadvantage of this gating method is the release of a large amount of dust. If the work is carried out in a non-residential premises, then this is not so scary. If the room is residential, then dust not only interferes with the gating process, but it also settles on the surface of furniture and household appliances, that is, it dirty the decor.

Rules and restrictions when gating

Wall slitting should be done only after a plan for the location of hidden electrical wiring or water pipes has been drawn in the room.

When performing gating work, it is important to consider the following factors:

Procedures are usually carried out only in the vertical or horizontal direction.
The slope of the groove is allowed in exceptional cases.
Horizontal grooves are made at a distance of no more than 15 cm from the floor slabs.
Vertical grooves must be at a distance of at least 10 cm from door and window openings, as well as corners. At least 40 cm from gas pipes.
The width and depth of the groove should not be more than 2.5 cm. The length of the groove should not be more than 3 meters.

In conclusion, it is worth noting that before starting work, you should prepare not only the appropriate tool, but also make a control check on the location of the groove.