Stroborez of a grinder with your own handsFor a professional construction organization or brigade, this investment pays off quickly, as the tool allows you to significantly speed up the process and improve the quality of installation. For the same person who simply makes repairs in his own house or apartment, such a purchase is inexpedient - nothing else, how to cut furrows, a wall chaser is not able. But in the presence of welding and materials, it is possible to create with your own hands a special attachment on the grinder that will cope with the task no worse. See other services:

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What is a wall chaser and its purpose

During construction or repair often have to deal with the necessity of slotting "secret" channels in the wall. They are needed for pipes for water supply, sewage and for hidden installation of electrical cables.

The complicated and noisy process of shaving the furrows using the

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puncher Not long ago, the grooves were dug manually - with a bolt and a hammer, then they were replaced by perforators and grinders. More recently, electric wall chasers have appeared on the market, which significantly eased the installer’s work and reduced the time spent laying furrows in brick and solid walls.

Modern wall chaser works delicately and without dust.

Building standards provide for certain sizes of strokes - they must accommodate cable and pipe, but do not exceed the permissible parameters that affect the rigidity of the structure as a whole. This is especially true in panel houses, built of reinforced concrete blocks. For many types of panels strobing is strictly regulated and violation of the allowable size of strobes can lead to irreparable consequences for the entire building. For example, in the so-called "Khrushchev" making shafts using a perforator is generally prohibited, but using a wall chaser is allowed.

Highly specialized groove of the new generation

The following advantages of the wall chaser can be distinguished:

1. Accuracy and accuracy in sawing a furrow in the wall of any hardness. This minimizes the cost of plastering the groove, the amount of consumables is halved compared with the groove made by the perforator.

   An example of high plaster consumption with “incorrect” chipping

2. Two saw blades make simultaneously two parallel cuts in the wall in one pass. Thus saving time by half. After that, you only need to remove the material between the gash.

   The distance between the discs is regulated using a set of gaskets

3. . In connection with the specifics of the function performed, all wall chasers are equipped with a dust cover, with the possibility of connecting a vacuum cleaner. Due to this, the level of dustiness during chroming is minimal.

   Furrowing kit with a construction vacuum cleaner

4. The noise level during the production of furrows is several times lower than during similar work with a perforator.
5. Does not create vibrations during chipping, which is especially important in buildings made of panel blocks.
6. Allows you to precisely maintain the dimensions of the furrow.

How the

works and how it works The device for the furrowing is similar to the angle grinder. The rotation of the working disks provides a powerful high-speed electric motor of asynchronous type. Through the gearbox, the rotation is transmitted to the spindle, to which the diamond discs are attached. At this similarity with the grinder ends.

Device Wall Chaser

The distinctive feature of the furrow is a volume casing designed to capture and remove dust. As a rule, the casing has several seats for additional handles. This allows you to select the optimum tool position during operation. The casing is located on a mobile platform, which is equipped with wheels in the lower part. They can be from 2 to 4. Rolling the platform along the wall, the operator cuts through the furrow along a pre-planned line. Thanks to such a device, there is no need to adjust the degree of pressure and the wall chaser easily slides over the rough surface of the wall. On one side of the casing is a pipe for removal of dust. Attached to it is a vacuum cleaner suction tube.

The hose of the vacuum cleaner

is attached to the nozzle for dust removal. The cut depth adjustment device is also located on the casing body. In different models you can find various constructive solutions of this function. But the general principle is that the casing moves relative to the movable platform and is fixed in the desired position. Outside the case there is a marking of the depth of cut.

The enclosure ruler shows the plunging depth of the disks into the wall surface.

It is necessary to add that many wall chasers are equipped with additional electronic equipment. This increases their cost, but also increases performance. These systems include:

• Engine speed adjustment. Provides the user with the ability to manually adjust the speed of rotation of the disks. This is important when the walls are made of various materials( brick, concrete, cinder block, foam concrete, etc.).
• Soft start system. A very useful feature for extending tool life and providing an increased level of safety during operation. As practice has shown, the majority of breakdowns of this kind of technology occur at the time of a sudden engine start.
• Automation of disk braking. Shortens the time of a complete stop of rotation after the engine is turned off, dampens inertia
• Anti-vibration device. With its help, micro oscillations of a wall chaser are absorbed during operation. With long-term use of the instrument, the operator may experience the problem of “tremor” - impaired blood circulation in the hands.
• Locking the motor when overheated. The “weakness” of all asynchronous motors consists in the fact that at high loads, the armature windings are sharply heated, up to melting. Externally( except for a temperature increase), this is not expressed in any way, and therein lies the danger - the motor can fail.

It is precisely because of the rigging of these functions that many wall chasers of such respected companies as Bosch, Makita and others have a high cost.

But we must understand that without them the tool will last much less time.

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

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

A. Hire the furrow.

B. Buy the desired attachment for angle grinders in the store.

B. Make a bit cutter independently.

The first two options are clear without comment. The third is discussed in more detail.

First of all, you need to know that for self-manufacturing wall chase you will need:

1. Bulgarian. It should be powerful enough to rotate more than one disk, as usual, but two. A low-power tool will simply burn, so it’s worth getting involved in the case of angle grinders from 1.2 kW.
2. Sheet iron, thickness from 2 mm.
3. Metal pipe with an internal diameter of 50 mm.
4. 3 or 4 wheels with a diameter of 20 to 30 mm. Bearings can be used.
5. A set of metal pads to adjust the distance between the disks. Make them at home is problematic, it is better to order in advance from a qualified turner.
6. Multiple cuts of small diameter pipes, screws, nuts, etc.

Of the tools needed grinder, welding machine, as well as the basic fittings - vise, files, hammer, ruler, caliper, etc. In addition, you will need paint( alkyd on metal or any suitable nitro enamel) and a brush.

Materials Required for Assembling an

Wall Chaser

Note that here is considered one of the many options for making burs. Models can be different, but the main thing that you should pay attention to when choosing is the reliability and safety of their use. Some masters manage to make a wall chaser on the grinder, even from laminated scrap, but it’s impossible to work with such a tool for too long - the risk of injury or suffocation from concrete dust is too great.

The wall chaser is assembled from scraps of laminate

. Starting to make a homemade wall chaser you need to make working drawings, and decide what parts you can make yourself and what to order from a turner. You also need to soberly assess your welding skills - the connection of metal elements into a whole requires accuracy and the ability to make high-quality, sealed seams.

One of the variants of an

homemade wall slug. So, the sequence of work for welding the casing is as follows:

• An iron sheet is cut out in order to weld the casing body. The two side planes( cheeks) must be congruent. The upper plane is welded first 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 the jigsaw is not, you can carefully cut and grinder.

  The thickness of the metal sheet must be at least 2 mm.

• The holder for the grinder is cut and a clamp with a clamping mechanism is welded to it. Clamp screws can be under the socket wrench or a cross screwdriver. The diameter of the clamp is selected in accordance with the diameter of the existing angle grinder. Usually it is identical to the size of the regular housing from the grinder.

  Clamp for fastening the

• grinder. Two support strips with holes for the wheel axle are welded to the assembled casing.

  to

• A dust outlet is prepared and a dust outlet is welded to it. An additional seat for the handle should be provided on the nozzle - on the left side( along the road gate) a branch with internal thread is welded to it. Thread sizes should correspond to the thread of the standard Bulgarian grip.

  Dust extraction pipe

• A bolt is welded to the finished casing to fix the angle grinder holder.

For convenience, all sharp corners and burrs on the body are grinded with a file, the surface is polished from welding “splashes” and cleaned from rust or oil stains. The finished parts are covered with a layer of paint and allowed to dry well. Before painting, you can assemble the entire structure and check it in action.

End result

If everything worked out in accordance with the plan, the wall chaser is fully assembled and tested. To install two diamond discs instead of one, you need metal washers of various thicknesses. Their dimensions must exactly match the size of the spindle, and the diameter of the hole - the rotational shaft. Backlash and beating are unacceptable, under load and at high speeds the tool can break out of the hands and cause injury.

Practical advice. It is much more convenient to cut a horizontal gut if attaching a guide bar to the wall. It can serve as a flat board or a rule, fixed with the help of dowel-nails. Applying such a simple device, the load on the hands is significantly reduced.

In order for the vacuum cleaner not to interfere during operation, it is recommended to use an elongated hose of at least 2 m. Length. And also the extender with two and more sockets.

Video: homemade wall chaser from the pan

Video: casing for the Bulgarian with a branch pipe

Video: a device based on the Bulgarian Intreskol

Homemade wall tent will help with housing arrangement and save money. Replacing the wiring, as well as hiding the pipes for water supply and heating inside the walls, will not take much time and effort. But during the work should not forget about compliance with safety regulations, use protective gloves and goggles. And when shroblenii - respirator.

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