For a long time, the Bulgarian served you faithfully. How much metal has been cut over the years of service! Now the tool is worn out - a piece has broken off, the buttons are falling off, everything is loose. You have to buy a new one, and throwing out good material is a pity. What you can start the engine and gearbox of the old tool, we will tell in this article.

Engraver

The home craftsman sometimes has problems with surface treatment, where it is impossible to approach with universal equipment. The part may be fragile with the inability to clamp, or bulky. It needs to be finalized on the spot. From an old grinder, you can make a tool for processing small surfaces with a flexible shaft. Get an analog drill.

For the manufacture of materials required:

  • flexible shaft, which is bought or selected from the available;
  • nozzle-holder of the working tool;
  • a pair of bearings with spherical rollers with a diameter of 22 * ​​8 mm;
  • working tool for machining with a shank diameter of 1-3.5 mm.

The presence of a flexible shaft will expand the functionality of the tool. With its help, it will be possible to get into the most hidden corners of the part, reduce the load on the hands.

As tools, it is possible to apply many of the master’s home stocks:

  1. Drill. With its help, the tool will turn into a small drill or drill.
  2. Milling cutter. Using the constructive cutters, you can process flat models, recesses of different shapes and depths.
  3. Cutting discs for processing thin materials.
  4. Brushes made of metal and felt for grinding, polishing surfaces.
  5. Abrasive tools with heads of various shapes.
  6. Tool for inscription.

Milling cutters can be made from broken drills by sharpening at the right angle.

Sander

Re-equipment of a broken grinder into a grinding or polishing machine will not be difficult. You can adjust the number of revolutions with a dimmer (dimmer) if the power of the instrument is small. Otherwise, a laboratory autotransformer is used to adjust the voltage.

A grinder with a diameter of 125 mm is re-equipped with the removal of the protection and the fixing nut. A support plate with Velcro is installed in their place. Such a tool is sold in any tool store. A grinding disc of a suitable configuration is attached to it. Disks on the other hand have a felt lining. Thus, the new tool will be able to grind wooden boards, bars. Felt surface, in the presence of abrasive paste, polished headlights of cars, bodies. Tools with a power of less than 1 kW should not be used in professional activities.. Grinding gives a greater load than cutting, so low-power machines can, in the literal sense of the word, burn out at work.

Outboard motor

If you are an avid fisherman with a PVC boat and still used only oars, you should think about making an inexpensive mover. Gasoline engines are expensive, consume a lot of resources, make a lot of noise. They are good for fast and long trips. If you need to go to the middle of the lake or check the supply, you can do consumables from the grinder. From a non-working tool, you need an angular gear.

To mount the engine, we manufacture a transom from plywood, a joint, pipes 20 * 20 mm. You will also need a pipe for attaching the leg, screw and attachments. The screw, with low engine power, is cut out of 4 mm steel and bent. For the mover, you need a battery and a 12 V motor. The battery capacity is calculated depending on the engine power and operating time. It is better to take the battery with a margin.

Motorized bike

Making a self-propelled bike is easier than it sounds. You don’t even have to disassemble the grinder.You will need an inverter from 12V to 220V, lithium batteries, a button with a power regulator. The essence of the mover:

  1. The shaft will transmit the moment directly to the tire. For this, a sleeve with roughness is made for better engagement.
  2. We attach the machine to the frame.
  3. To clamp the sleeve we use a cable similar to the brake handle. This will make it possible to turn on the engine not constantly, but to use it as an auxiliary.

Coffee grinder

A broken grinder can really be used in everyday life by making a coffee grinder. Such devices come in 3 types:

  • hand held;
  • rotational;
  • millstones.

Millstone is the highest quality. For its manufacture you will need:

  • engine power of at least 300 watts;
  • coffee grinder body;
  • millstones from an emery wheel;
  • the grid.

The grinding quality depends on the size of the emery wheel.

From the old grinder you can do a lot of useful things. It all depends on your imagination and ability to work with your hands. During the design period, it is necessary to take into account the power of the tool, the necessary functions, the presence of purchased elements.