How To Make A Grinder From An Angle Grinder

How to make a sander from an angle grinder?

How To Make A Grinder From An Angle Grinder

Such a question can be perplexing, because an angle grinder is an angle grinder. But it is very versatile and must be prepared for each operation. To prepare the angle grinder for grinding, you need to purchase a support wheel, which is installed directly on the machine shaft.

To process wood, you need to glue an emery cloth on this circle. The number of sandpaper is selected for the immediate moment of work. On sale you can find both a grinding wheel of the required diameter and emery wheels of the appropriate size. Velcro emery discs are also available, which are very easy and quick to change on the tool.

To convert our angle grinder to concrete grinder, it would be a good decision to purchase a special dust cover. It is good because it has a branch pipe for connecting a vacuum cleaner. The well-known casings are produced by Hilti. On the cover of this company there is a sliding sector that opens part of the wheel for grinding in the corners.

Grinding metal angle grinder is usually done with standard metal grinding wheels. They have different diameters, different thicknesses and different grains of the grinding surface. But, if you are going to grind an indecently rusted surface, then first you need to brush it over the metal. Such brushes of the required diameters are also on sale.

What is necessary?

So, before you start making a belt sander from an angle grinder, you need to prepare all the constituent materials and tools. For this you will need:

  • The angle grinder itself, which is the basis of the future apparatus;
  • Bolts and nuts;
  • Sheet steel;
  • Springs;
  • Square tubes.

Among the tools you will need:

  • Vise, on which most of the operations for the manufacture of the grinder will be carried out;
  • Drill;
  • A hammer;
  • Welding;
  • Set of wrenches;
  • Roulette.
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How to grind an angle grinder different materials

Even if you purchase and install the necessary accessories on your angle grinder, it still means nothing. Processing different materials requires certain knowledge. Without this, it will be difficult to achieve the desired quality.


What do you need to know about a belt sander before making it yourself? There are several important criteria that affect the performance and quality of the machine. The main one is power. After all, it is the main component of a homemade car. Devices with high power and high speed are suitable for intensive cleaning of any materials. But medium speed is useful for surface grinding. An angle grinder with a speed controller will be considered a universal option. In this case, you can independently adjust the rotation speed depending on the degree of processing.

You should also consider the width of the future sanding belt. Depending on it, the dimensions of the driving and driven wheels of the home-made apparatus should be selected. Many tapes are 100 mm wide, but 75 mm wide tapes will also fit for small household needs. And don’t forget about safety. This also applies to the manufacture and use of the device. Welding will be used in the manufacture. Therefore, it is worth working strictly in a protective mask.

It is recommended not to keep any flammable objects or flammable liquids nearby. The self-made device itself operates from the mains. Therefore, it is necessary to avoid high levels of moisture and monitor the insulation of the wires.

How to make a belt sander yourself from an angle grinder

Existing types of grinders

The industry produces several types of machines that differ both structurally and in purpose. Here are the main ones:

  • Eccentric or orbital, in this case the sole of the instrument simultaneously rotates around its axis and in a certain orbit. It turns out that each time it passes in a slightly different place, so scratches and burrs are overwritten with each pass more and more.
  • Vibration model. Here, the work sole performs reciprocating movements with a frequency of about 20,000 movements per minute. It is due to these movements that grinding occurs.
  • Angle grinder, which is popularly called an angle grinder. This tool is used for rough processing of parts, large logs, etc. For processing, abrasive wheels of the required grain size are used.
  • A belt sander that is usually used for working on large surfaces. Structurally, it consists of rollers driven by an electric motor, on which an emery tape is put on.
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Making an orbital sander

Currently, making an orbital machine with your own hands is possible only from a broken orbital machine. This is due to the complex device for rotating the working disk, which is quite problematic to repeat on your own. It should also be borne in mind that a machine made by a specialized company will not cost too much, and making it yourself will be very difficult and take a lot of time.

How to make a sander

When work with a wooden surface comes to an end, the stage of finishing sanding begins. To grind without burrs, scratches, and nicely round off sharp corners of any part, you need to use a wood sander. This tool will help to perform professional grinding, even for a beginner who first took the device in hand. If you wish, you can make a grinding machine yourself, using only available tools.

Making a grinder from a drill

To turn an ordinary, household electric drill into a grinder, you need to equip it with a special nozzle, a working drum or a special support plate, depending on the task.

The backing or sanding pad is a plastic or rubber base with glued sandpaper and a shank for clamping into a drill chuck. Trays with a flexible shaft are suitable for working with a loose drill, and with a rigid one it is better to use only for a well-mounted drill.

Grinding drums for household drills are structurally a conventional cylinder, a shank and sandpaper glued to the cylinder. When using drums, the working surface of the grinder is parallel to the axis of rotation.

We make a grinder from an angle grinder

Many might say that an angle grinder is an angle grinder, but there are some subtleties hidden here. It should be borne in mind that the angle grinder has a very high speed and is often quite a decent weight. To polish the surface of an angle grinder, you must have considerable experience in this matter and use special polishing discs and wheels. The sander has a much lower engine speed and weight. To work with a factory grinder, no specific experience and skill are required.

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It is possible to independently make a good grinder out of an angle grinder, which is not inferior in its parameters to a factory machine, only by improving its electrical circuit, by mounting the regulator at lower speeds and by using special grinding nozzles.

Making a belt sander with your own hands

It is not at all difficult to make a belt sander yourself, you must complete the following steps:

  • Select suitable materials and parts;
  • Make a solid foundation for fixing the tool;
  • Install a suitable countertop;
  • Fasten the vertical struts with a tensioner and a drum;
  • Mount the motor and drums;
  • Fasten sanding tape.

To process fairly large parts and elements, it is necessary to make a large copy of a serial grinder. For example, if you take an electric motor with a power of 2 kW or more powerful with a rotor speed of 1500 rpm, then the gearbox can be omitted. The power of such an engine is quite enough to rotate a drum about 20 cm in diameter and process parts about 2 m.

You can also use an electric motor from an old washing machine. In this case, the frame is made of a thick sheet of iron, preparing a place for installing the motor and carefully bolting it to eliminate vibration. The design of such a machine consists of 2 drums, and one of them is fixed, and the second can be tensioned and rotates on bearings around an axis. It is advisable to make the basis for the machine from metal or several sheets of thick plywood. The drums are made on a lathe from chipboard. The tape is cut from sandpaper sheets with a width of about 20 cm and fixed on the bed. The larger the table is, the larger the parts can be stacked and processed in the future. Finished product drawings can be found online.