How to install a disk saw in a corner grinder.

How to install a grinding circle on a corner grinder video

The programmed direction of rotation do not have cut circles. Therefore, it does not matter which side of their installation will be carried out. But as mentioned above, the installation of the circle with the front side faces the process of replacing it (it is much more difficult to unscrew the nut on the abrasive side). In addition, such an installation provides several more advantages.

Warranty of a flat installation on the shaft

The metal ring increases the area of ​​the support. Therefore, when the disk is installed on the shaft and its tightening begins, the pressure is distributed evenly. This guarantees a flat landing of the cutting circle and reduces the likelihood of damage due to distortion.

Convenience to install a disk

The installation of the abrasive circle with the front side provides another advantage. you will always visually see which nozzle (on metal or stone) is installed at the moment on the corner grinder. They are not interchangeable and with an error there is a high probability of serious consequences. For example, when trying to use a cutting disk for metal, it is possible to destroy and trauma the formed pieces of the master. Therefore, the installation of an abrasive circle by the label will provide not only convenience, but also the safety of work.

Instructions instructions

In the instructions to many angle grinders, for example, for Metabo WP 850, it is clearly indicated that “a metal flange for abrasive cutting should fit the supporting flange”. Manufacturers are not in vain give such recommendations, as they provide safe work with the tool, reduce the risk of serious injuries to the master.

Is there a significant difference from the direction of rotation

The direction of rotation of the cutting circle can be either “on itself” and “from itself”. Each of them has its own advantages and disadvantages. So, when the disk rotates “from themselves”, dust and sparks fly on the operator, which creates additional difficulties in work, associated with possible burns of eyes, skin, flashing clothes. The rotation of the disk “on itself” is devoid of this drawback. But in this case, there is a higher risk of injury. After all, if the disk is squeezed, then the tool with force will fly into the face of the operator. A single rule in which direction the cut.out circle should rotate, does not exist. If this is important, then the information must indicate the tool. In all other cases, the direction of rotation is selected by the operator, taking into account the type of surface processed, convenience and work experience.

This topic has already been examined earlier, and received a large number of Комментарии и мнения владельцев, mostly negative. It turns out that most carriers of corner grinders are cut so that the sparks fly from themselves. They argue this by the fact that if the disk is open, then it will not fly to the feet, or that the sparks will not disappear pants.

At the same time, they forget that when cutting a corner grinder “from yourself”, it becomes more difficult to control the work of the tool, and some hands are involved in this process. When cutting with sparks “on itself”, in addition to the hands in the work, the case also enters the work. In simple words, holding an angular grinder in this position is much easier, more convenient and safer.

How to change the diskla disk saw

The disc saw is designed to work with different material, so the masters often have to perform a change of cutting elements. You can’t use the tool for cutting metal when cutting wood and vice versa and vice versa. The need to remove the circle also arises when it is blunting or failing. In order to fulfill the tasks with qualitatively and quickly, each master should know how to change the disk on a circular saw. We will talk about the features and subtleties of the procedure.

Regardless of the manufacturer, whether it be Bosch, Makita, Diold, Interskol, bison or whirlwind, the design of all circular saws includes the following elements:

• Electric motor. Is the main detail that launches and transfers rotational energy to the saw disk. which allows the cut of the material. In stationary models, the motor is not always located in the same case with a shaft. The movement of the latter is provided by the presence of a belt and a pulley system.
• Frame. Constructive features include the presence of ventilation holes with which the motor cools. Special channels ensure the abduction of sawdust from the working area. Met thermo.resistant plastic with low susceptibility to mechanical damage is made. The engine is located inside, and on the surface the start button. In models working from the battery, the battery block is attached to the body.
• Sole (platform). It allows you to install the unit on the workpiece or guide tire, provides the movement of the tool along or down on the sawing surface.
• Spindle. Ensures the fixation of the saw disk on the shaft using a clamping washer.
• Lever. The rubberized inserts eliminate the sliding of the circular saw in the hand when performing cutting, guarantee a reliable grip. In some models on the handle there is a start button and a latch, the function of which is to protect against unintentional inclusion.
• Gearbox. It has the appearance of a screw or worm, which are leading, and a braid of a led gear. Provides the transfer of the moment of rotation.

One of the important elements of the instrument device is a protective casing, which eliminates the likelihood of injury on sharp dieship. It automatically closes the cutting element after it exits the material.

In the design of some models there are regulators of the depth and angle of the sole, parallel emphasis that guarantees even cut without the use of additional devices.

The circular saw works according to the following principle. when clicking on the “Start” button, the current enters the engine, the rotational moment is transmitted from the shaft to the cutting element, the latter scrolls around its axis, performing the sawing of the material. When using manual models, the saw has to be extended along the processed surface, in stationary. the workpiece passes through a circle fixed on the bed.

Saws of any manufacturers have a similar device

Types of saw discs

There are 2 main types of cutting elements:

• Monolithic. It is a whole plate made of high.carbon steel or other durable metal alloy. Characterized by a large number of teeth. The advantages include a small price, a large margin of strength, simplicity of service and low sawing quality. In addition to the teeth, they will go very quickly, it is necessary to constantly maintain their wiring.
• Chards. They differ in protruding attacks on cobalt teeth, artificial diamond, tungsten carbide. Such elements provide greater disk strength, extend their service life. Marking the letters HW. The pluses include high quality cut even at high speeds, the versatility of use. The teeth on such circles dull slowly. The main disadvantages highlight the high price and the need for special equipment for sharpening.

The equipment also differs in a number of technical characteristics. External diameter varies from 65 to 500 mm. affects the depth of the cut. For household purposes, options with a size of 75-165 mm are suitable. Professionals choose saws that are designed to install circles with a diameter of at least 190-210 mm. The thickness of the canvas is from 2 to 6 mm. The most common option is 3.2 mm.

Big indicators have a high working resource, but low cutting speed. They are recommended to choose, if necessary, processing of significant volumes of wood. With long work, circles with small diameter quickly become unusable.

The cutting elements are also distinguished by the number of teeth (from 10 to 120 pcs). The more of them, the better the quality of the cut. For a cut of soft wood, use equipment for 20-24 teeth. Circles with an average number of teeth (from 36 to 48 pcs) are better cut of hard wood, wood-brown stove and plywood. The incision is neat, but the element itself wear out quickly.

For cutting laminated surfaces, elements with a frequent arrangement of teeth are selected. from 40 to 64 pcs. When working with metal, clean cut and even edges ensures the use of circles with a large number of teeth. from 80 to 120 pcs.

What is required to install a disk?

Installing a disk on a corner grinder, as a rule, is a fairly simple process in which several rules must be followed. In order to produce it, it is necessary to arm yourself with an appropriate tool. the key that will be necessary to unwind the nut. The next step after it has been promoted, the disk of the corner grinder or its primary installation will be replaced. If it happened that the disk in a corner grinding was clamped, for seizure it will have to be crushed and remove the remains from the gap between the supporting flange and the nut with a flat screwdriver or chisel.

In order to determine which side to put the disk, it is necessary to take into account several main factors.

• You can pay attention to the label. If the corner grinder works on itself, namely, spins away from the manager, then in this case the disk must be installed with the label inside. In the opposite direction is spinning, which means that the label should be installed out.
• You can put it, not paying attention to the label. But then you can expect the most unpredictable results, such as the usual breakdown of the disk and the corner grinder. At the same time, experts argue that such negligence can lead to the fact that the corner grinder will simply jam and there is no need to talk about safety in this case.

In order to determine which direction the corner grinder should twist, here it is necessary to consult information on security. In particular, concrete should be cut on itself.

In this case, the sparks will fly from the side, namely from the manager. In general, cutting materials in the direction of yourself is not safe, since in the case of jamming, the angular grinder with the disk will fly to the one who controls it. This must be taken into account.

How to change the disk if it was clamped?

What to do if the circle on the “corner grinder” jammed? This can happen, for example, when, as a result of work, pieces of the cut workpiece sharply clamp the rotating disk. Often this leads to its destruction.

Unscrewing the nut outlined as a result of rotation, if the circle is bitten, it is very difficult.

• One of these methods will be the use of two gas keys at once. The rest of the disk must be chosen by pliers. With one key, you need to clamp the part of the rod located at the disk, and the other to unscrew the flange.
• Sometimes, in order to obtain the access of the gas key to the rod of the “corner grinder”, you have to disassemble the gearbox.

• There are reviews on penetrating grease: the nut processed with this composition should be spelled in a few minutes.
• There are more exotic methods. For example, heating a jammed nut with a gas burner. The heated nut as a result of the expansion will be easier to crank.
• Sometimes, in order to avoid excessive effects on the details of the “corner grinder”, it is better to completely crush the disk residues, remove the protective casing and knife cut all the remnants of the circle between the clamping devices.

• A simple device saves a simple device from the problem of the jammed nut. cardboard or tin washers. Often they are sold with “corner grinder”. But over time can be lost or fully unusable. It is not at all difficult to make homemade washers at all. However, it is better not to neglect them.

In extreme cases, the flange can be sawed with a hacksaw on metal, followed by its replacement with a new.

Tips that cannot withstand critics

On some detachment circles, for example, on those that are designed to work with stone or tiles, there is a special arrow. She indicates the direction of rotation. In this case, it would be stupid to advise the opposite, which is quite logical. As for abrasives for cutting metal, as a rule, no arrows are applied to them. Here they include the fantasy of the “superprofessionals”, distributing tips to the left and right.

The first logical chain of false specialists may be the following. In the middle of the circle, on the side where the drawing is applied, there is a metal washer fixed by the rolling method. That’s right, you can’t argue here. But the matter is different. The following is an explanation. “Look at the puck of the corner grinder where you put the disk, there are pimples on it. If you place the circle so that it is in contact with these irregularities with a metal washer, the defects are leveled. In the process of clamping roughness, they will cling to the ring, which will ensure the most high.quality and reliable connection. When working, there will be no bite of an abrasive, it will not turn around ”.

Logic chain number 2 from pseudo.specialists. “In the process of casting a circle, small tubercles form on it. The clamping nut of a grinding machine on the thread has a backlash. It is due to its clamping that irregularities are smoothed out. “.

Now the most interesting. According to “experts”, if you look at the petal disk for grinding, the internal metal ring is located from the petals. Accordingly, this part to the gearbox and an abrasive is installed on a grinding machine.

We carefully analyze the above tips and proceed to complete refutation. Otherwise, more and more people will adopt false information, which will not only create problems in work, but can also cause an injury.

The main difference between the two sides of the circle

On any disk for corner grinder, you can easily notice the differences in two sides of the circle. One side is monophonic, it covers it with abrasive materials (for working with different types of metals). The front side has a special label on which information about the characteristics of the cutter is written.

But the main difference between two sides of the circle is the presence of a metal ring. This is an important structural element that affects the safety of use, and therefore deserves a separate mention.

Direction of sparks when cutting a corner grinder

This topic has already been examined earlier, and received a large number of Комментарии и мнения владельцев, mostly negative. It turns out that most carriers of corner grinders are cut so that the sparks fly from themselves. They argue this by the fact that if the disk is open, then it will not fly to the feet, or that the sparks will not disappear pants.

At the same time, they forget that when cutting a corner grinder “from yourself”, it becomes more difficult to control the work of the tool, and some hands are involved in this process. When cutting with sparks “on itself”, in addition to the hands in the work, the case also enters the work. In simple words, holding an angular grinder in this position is much easier, more convenient and safer.

This information will be especially useful for beginners who for the first time picked up a corner grinder. Here, in addition to the absence of any experience, there is also fear, which when working with a corner grinder should not be. Therefore, the first is the installation of a disk with a picture outward, and the second, cutting corner grinding so that the sparks fly back.

The main difference between the two sides of the circle

Two surfaces are well distinguishable on any cutting disk. One of them (back) plain, formed by abrasive material. A label containing basic information about the characteristics of the disk is glued to the second (front). But the main distinguishing feature of two surfaces is the presence on the front side of the metal ring.

A metal washer (ring) is designed to protect the integrity of the disk when it is tightened with a mobile flanger nut, as well as to increase the area of ​​the supporting surface. In addition, the metal washer does not allow to “click” the cutting circle to the surface of the nut, which greatly facilitates the process of replacing it.

Advantages of installing a disc with a ring to an angular grinder

The programmed direction of rotation do not have cut circles. Therefore, it does not matter which side of their installation will be carried out. But as mentioned above, the installation of the circle with the front side faces the process of replacing it (it is much more difficult to unscrew the nut on the abrasive side). In addition, such an installation provides several more advantages.

Warranty of a flat installation on the shaft

The metal ring increases the area of ​​the support. Therefore, when the disk is installed on the shaft and its tightening begins, the pressure is distributed evenly. This guarantees a flat landing of the cutting circle and reduces the likelihood of damage due to distortion.

Convenience to install a disk

The installation of the abrasive circle with the front side provides another advantage. you will always visually see which nozzle (on metal or stone) is installed at the moment on the corner grinder. They are not interchangeable and with an error there is a high probability of serious consequences. For example, when trying to use a cutting disk for metal, it is possible to destroy and trauma the formed pieces of the master. Therefore, the installation of an abrasive circle by the label will provide not only convenience, but also the safety of work.

Instructions instructions

In the instructions to many angle grinders, for example, for Metabo WP 850, it is clearly indicated that “a metal flange for abrasive cutting should fit the supporting flange”. Manufacturers are not in vain give such recommendations, as they provide safe work with the tool, reduce the risk of serious injuries to the master.

Picture up or down: how to put a disk on a corner grinder correctly

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The dispute about which side you need to put on a disk on the corner grinding of, in its acuity and popularity can easily compete with the most acute historical, political, automobile and football issues in the republics of the former Soviet Union. But what the manufacturers themselves think about this? Maybe the answer all these years was hidden in the operating manual, which, as you know, no one reads.

If you look into the operating manual of the corner grinder, then there the craftsman will not be able to find any intelligible answer to the question of which side you need to put the disk on an angular grinder-the picture up or down. Considering how many discussions this fact causes, it is just right to ask the question: why such an important thing was not spelled out in the main technical document for tool users?

In fact, the answer to this question is very trivial. The leaderships do not write anything about how to put the disk of corner grinding, because it does not matter. If the design of the disk allows you to put it this way and that way, then you can do this in any way. The option of installing a disk does not have a serious effect on safety and performance. For the same reason, there is no information about the “correctness” of the installation of the disk of the corner grinder of the corner grinding in the GOST, nor in the TU or in foreign EN.

Corner grinding disks manufacturers say that the structure of the abrasive circle is evenly and equally in working properties and composition. At the same time, different companies give different tips on how, in their opinion, it will be better to put discs. These tips change depending on what logic is guided by the master. Most often, they advise you to put the disk so that the employee can always and easily see what exactly the corner grinder is “armed” right now. At the same time, companies add that strict norms and recommendations for the correct installation of the disk do not exist.

Manufacturers also recommend putting out the outburst of those considerations that the paint of the picture allows to provide additional protection of the tool from the exposure of the clamping nut, thus acting as a protective laying. However, this does not affect the working qualities of the tool.

And here is an interesting video from our channel:

In the continuation of the topic, read about 5 things that should be understood about the battery corner grinder (which they will not be said in the store).

Humpbacked is not only firewood! Profitable and practical material for construction

Today, any building material goes into business with great enthusiasm. And the concepts of “construction garbage” and “construction waste” are less and less found in everyday life. As the saying goes: “Gol to fiction is cunning”. Hump ​​-up is also a waste. And this natural and suitable “woodworking departure” in skillful hands can be an excellent alternative to a trimming board, while winning a lot of cost.

Here we have purchased such a mountain (about 20 cubic meters) several years ago for 7000 now, looking at in our region (p. Khakassia) I found that the cost is held at about 17,000 for the same volume. And not surprisingly: the whole forest took off in price at least twice. However, this is still much cheaper than an uneducated and, moreover, trimming boards.

Most often, heavily acquires for firewood. And I used to be sure that he could not have any other worthy use. When we brought a full truck of such a board, my husband and I began to sort them by size and quality. And the longer we did it, the more packs with business croach became more and more, and there were very thin, broken or too thick specimens on firewood. And there were many very beautiful specimens suitable for both the manufacture of furniture and the creation of various decorative elements for the house and garden, especially if you remove the bark.

How to cut a board/lining across a disc saw

First, a fishing line for a trimmer of sawing is marked on the board. If high accuracy is useless, you can mark with a pencil, and cut right along the line. If it is necessary to coincide to a millimeter, then the line is drawn with a knife blade, and the cutter is allowed along this line.

Then the board is fixed on the goats, pressed by the knee. The disk saw is brought to the site of the saw, the distance to it is at least 10 mm. The saw is advanced to the drawn line. Combining the teeth with a feature, turn on the electric saw and bring it to the edge, smoothly leading along. Closer to the end of the cut, slightly slow down the advance, then finish the remaining distance with one smooth jerk. So you can avoid chip, which sometimes occurs with a transverse cut.

How to cut the board with a disc saw across

So that the cutting line for the cutting of the cut is perfectly flat can be used by guides. A large square is suitable for this. The long side is rested on the edge of the boards, to the short side, below the edge, press the saw platform. All this design is moved along until the fishing line for the trimmer of the disk coincides with the intended line. Then the tool turns on and the incision begins. With this method, it is easier to control the direction: you just need to press the edge of the platform to the square.

We use the guide. metal square when cutting boards

Reviews

Since there are a lot of manufacturers and models, we give only the most popular disk power plants. To make it clearer, what kind of equipment what we are talking about, first we list the main characteristics.

Reviews Makita 5008MG (Makita)

Good saw. Light, quiet, reliable, no vibrations. With its help, he built and finished the house.

For boards, not thicker than 50 mm is ideal. Has been working for 2 years. Everything is fine, only a hole is clogged for the removal of sawdust.

Good tool, light, you can work with one hand, the assembly is good, the disk includes excellent, thin. But I burned after a year of easy operation, that is, it is not for professional use.

Reviews Makita 5008MG

It works very well, but if all day. heavy. I don’t like the presence of a backlash in the mount to the platform. it is very difficult to do 90 °, it “walks” a bit. Another advice: do not take the wheels thinner than 2 mm to it. I have 1.8 m bent with a non.critical load. But it works quietly, cuts well.

Even a laminated woody stove saws well. Chips are very small, it goes easy. The disk in my is not parallel to the edge, but there is no adjustment. I took it under the installation on the table, so she is bending the platform under her weight, she will have to strengthen her.

My Makita is a great machine. I put a two.story frame house with her. Nothing washed out and did not break, but dissolved five.centimeter boards along all 6 meters. The only thing that I still do not understand why the backlight.

Reviews Interskol DP 190/1600 m

I have been using the second year. I have already put a bath, shed, extensions and outbuildings, but one house. Then another. There are no problems so far. But the power is not enough to work normally, you have to lead it slowly.

Good saw. I sawed it for the formwork, then I already drank them in size, I opened a bunch of sleepers on firewood (cut it from both sides). Works good. I am pleased to.

For such a price good quality. For a summer house or at home, for seasonal work, even if it is a construction, a great option. The case is durable and well protected from dust. Only one moment: the platform is though thick, but soft. Therefore, when working, make sure that when leaving the board, the knife does not pick up anything. This happened to me, so the platform was bent over. I will straighten it, since the accuracy of the cut fell strongly. But she is good to work. Disk that is not very in the kit, I quickly replaced it, and I drank normal.

Reviews Interskol DP 210/1900em

I have been working for three years, without refusal so far. That you don’t like. backlash in the sole, so it’s difficult to cut off for sure.

Built with such a house, however, under the guarantee he replaced the anchor. It saws well, the power was enough for all work, but the backlash on the sole is such that it has to be held with a hand, and not to lean. I tried to install on the table, so the disk deviation was 10 °, I had to come up with an additional mount. With all the shortcomings, it cuts well.

I worked out the season. What is not very good. the handle exfoliates, the casing bolts were tightened weakly, he pulled himself. If you put an inexperienced person, the flag of the protective casing is weak. But for such a price. an excellent tool.