How to make sandpaper yourself? Emery emery with own hands (drawings)

Quite often, domestic craftsmen feel the need to use emery. It may be required when knives or scissors are blunted, as well as other cutting tools that require sharpening from time to time. Many specialists are not in a hurry to acquire such equipment because it is very expensive. There is no need to talk about private consumers who use such equipment less often than professional masters.

Self-made emery

Emery yourself can be made, if you have the engine from the old household appliances, you can apply it to the case. First, you need to choose an electric motor that would be suitable for manufacturing the described equipment. Quite often, for the design use engines from old washing machines such as "Vyatka", "Volga" or "Siberia". This technique has a fairly powerful motor.

Among other things, the washing machine can borrow a switch that has a starter. Despite the fact that the carrying out of these works may seem quite simple, it is very difficult to make sandpaper by oneself. For example, as one of the main questions is how the grinding stone can be planted on the motor shaft . This is due to the fact that there is not always a thread. In addition, the diameter of the hole of the stone may not coincide with the diameter of the shaft. For this reason, you need to prepare a special sharpened part.

Defining parameters

In order to make emery yourself, you must first determine its parameters. Quite often, asynchronous motors are used to make such an installation at home. For emery, you can apply the limiting ripple, which is 3000 rpm. If you use a more impressive rotation speed, you can face the problem of breaking the grindstone. Preferably at home use a motor that has a speed in the range of 1000-1500. If you use an electric motor at 3000 rpm, you need to prepare a sufficiently strong stone. Among other things, you will need a quality flange. Most often, large engine speed is used not for grinding, but for polishing parts.

In order to make the emery with your own hands, it is not necessary to use a powerful electric motor. For a homemade grindstone, the more acceptable power is the limit of 100-200 watts. Three-phase and single-phase electric motors can be used.

Preparing the flange

Before you do the emery yourself, you need to think about how to ensure the connection of the engine with the stone. For this purpose, a flange is prepared. In carrying out this type of work, it is preferable to use the services of a turner. But the rest is already a matter of technology and the question of having available materials. It is necessary to prepare a flange, which is mounted on the shaft, and is also strengthened by the washer. It should be noted that the thread and the flange must be prepared in accordance with the direction of rotation of the motor shaft.

If you make the emery yourself, the drawings of which must be considered before the work starts, you will use a system in which the rotation is clockwise, then the left-hand thread must be prepared and vice versa. If this factor is not taken into account, then the nut will work on unwinding. This will certainly lead to the fact that the stone can fly away. If there are no suitable equipment for making bushings of a certain diameter, pipe pieces can be used, and the resulting clearance between the shaft and the motor bushings must be compensated by a twist of the electrical tape. You should choose the one that has a tissue base. It is necessary to put the sleeves one on top of the other. At the same time, when winding the tape, it is necessary to observe uniformity.

Council of the master

Making the emery with their own hands from the washing machine, the bushing needs to be made using a pipe, the diameter of which is 32 millimeters. On it it is necessary to put on an emery circle. Such a system of bushings will be strengthened firmly on the shaft.

Recommendations of a specialist

If the work is done at home, then you can prepare the thread with a tap, and you will need to grip the motor shaft in a vice. Before you make the emery, you need to determine the direction of its work. It is very important.

In the emery, made by own hands, it is possible to correct the direction of rotation of the rotor. It will be necessary to find the starting and working winding with the help of a tester. The resistance level of the winding is quite often equal to 12 ohms, but the starting voltage is close to 30. The working winding should be connected to the 220 volt network, but the starting winding should be connected at one end to the coil terminal, while the other should touch the second winding terminal, and then discard him.

Features of the tool making

Emery electric with their own hands is often made at home without the use of a starting coil. In this case, after turning the winding into the network, it is necessary to start the abrasive stone in a certain direction with the help of hands, after which the machine will work independently.

Carrying out the emery installation

Let's look at how to make the emery from a washing machine with our own hands. First you will need to determine how to correctly install it on the workbench. This can be done with the help of a bracket, which is removed from the washing machine. The fastening can be done with the help of bolts. The motor on the other hand rests on the angle that holds it in a horizontal position. Among other things, it has a neckline that completely repeats the outline of the motor housing.

In order to reduce the force of vibration, a corner made of a rubber piece of hose must be put on the corner. Avoid getting injuries from running saws and flying debris of the abrasive wheel when using the machine can be a method of manufacturing the casing. It is preferable to make it out of steel. Choose for this you need a canvas, the thickness of which is 2.5 millimeters. It can be a strip of metal, which needs to be folded in the shape of a semicircle. Under the emery surface, it will be necessary to mount a sheet galvanized element, which will protect the workbench from the effects of flying sparks that form during operation. All actions for your own safety should be done with the help of special glasses.

Finally

As devices for the equipment it is possible to apply Plexiglas, the thickness of which should be equal to 5 millimeters. It is strengthened on the engine casing, it is necessary to use a sample. Fastenings should be carried out in such a way that it is possible to implement the tilting of the element by 180 degrees.

Also it is necessary to make a pod, which is necessary for a strong and reliable abutment of the workpiece. All the work can be done independently, without resorting to the help of a master. To do this, you will need to stock up with the appropriate tool and material. In addition, there is no way to do without the recommendations that were presented in the article.