Instructions for creating a 12 volt grinder with your own hands

When to choose a cordless angle grinder

Many gentlemen cannot immediately decide which grinder (angle grinder) they want to have. To do this, it is important to know what materials and to what depth you will use it for cutting. The diameter of the circle installed on the power tool depends on this. It is also important to know the power required by your future power tool. Stationary angle grinders have more weight and impressive dimensions. However, their power and functionality are much greater.

Converting a screwdriver into an angle grinder

If the angle grinder is broken or is missing altogether, then it can be temporarily replaced with a cordless or corded electric screwdriver. However, there are various options for remodeling. The easiest way is to use ready-made or homemade attachments or adapters. An example of an adapter is shown in the photo below. One end of it is fixed in the cartridge, and a disk is attached to the other.

Another option that allows you to convert a drill-driver into an angle grinder is to use a special type of attachment equipped with a gearbox. When implementing the method, the power tool is disassembled, its gearbox is removed, and an attachment is installed in its place. After the transformations, you will get a tool similar in appearance to an angle grinder.

It should be taken into account that such a special attachment is expensive, and modification work requires a lot of time.

Homemade nozzles are made from studs of suitable diameter, nuts and washers. They are even used with cordless electric screwdrivers.

The efficiency of homemade grinders is significantly lower than that of factory grinders. This is due to the large difference in rotation speeds of the attachments: approximately 3000 rpm for a screwdriver versus about 11,000 rpm for an angle grinder. The insignificant amount of power together with the low speed significantly limits the functionality of the device.

The devices made should be used only in emergency situations. Due to the possibility of reverse on the tool being remade, it is necessary to monitor the direction of rotation of the disk so as not to injure yourself.

Sources:

https://mcgrp.ru/article/5939-idei-samodelnoy-tehniki-iz-shurupoverta https://docs.google.com/document/d/189ekTprF2iAIraj25BtdxPxbiGi_ML0A5WonRzNcbGw/mobilebasic https://tehnika.expert/dlya-remonta/ shurupovert/mozhno-sdelat-samodelki.html

– Hitachi GDSL

Price: 5200 rubles

An excellent power tool from Hitachi, with which you can cut or grind metal away from the electrical network. The model boasts extremely fast battery charging - only 45 minutes, as well as fairly compact dimensions - the length of the device does not exceed 30 centimeters, which is incredibly convenient in limited space.

The equipment of the device can hardly be called rich, but everything you need is in place - two 3Ah batteries, a charger, a key, a second handle and the grinding disc itself. The lack of keyless replacement of the attachment is unlikely to please professionals who have to quickly perform a large volume of varied work, but for household needs such a cordless angle grinder is perfect.

Hitachi G14DSL

Wood lathe

Creating products from wooden blanks is impossible without a woodworking machine. As a working surface of the machine, you can use a workbench made of wood with a flat surface.

According to the dimensions of the tool, make a bed from a lath in which the screwdriver will be located and fixed. A regular clamp is used for fixation. The bed is attached to the base using self-tapping screws or a clamp.

Into the screwdriver chuck

a mandrel with teeth is placed. To make the tailstock, 2 bars with an adjustment screw, sharpened to the dimensions of the cone, are suitable. The headstock is attached opposite the screwdriver

. In this case, its axis should be at the same level with the headstock adjusting screw.

Use a clamp to secure the back stop to the base of the future machine. A simple wood lathe is ready to use.

Screwdriver machines

Craftsmen have made many different types of machines from screwdrivers . They cope well with everyday tasks.

If you need to work professionally, then you cannot do without more serious equipment.

One of the options for how to convert a drill-driver into a drilling machine is demonstrated in the video below.

A method for creating a simple lathe is shown in the video below.

It is also possible to assemble the simplest milling and grinding machines based on a drill-driver, which is demonstrated in the following videos.

Flaws

To objectively assess all the qualities of an angle grinder from a car battery, it is important to know its shortcomings. And this device has a lot of them. Indeed, due to its portability, all the important parts of this type of angle grinder are made small, which is why many parameters of the device lag behind the stationary type in efficiency.

The main disadvantages of a cordless angle grinder are:

• Low power. This tool is not suitable for sawing thick materials and metal structures. The design is more suitable as an auxiliary tool. Moreover, after just a few minutes of operation, the power of the angle grinder drops sharply, the speed decreases, and the battery runs out.
• Expensive. If you buy a professional device, then its price will consist of the price of the grinder itself and the battery. When purchasing a tool made in China, no one can vouch for the quality of the grinder. A homemade angle grinder can be very useful for its owners. However, for this you need to have certain skills and mastery.
• The battery lasts no more than 30–60 minutes of operation. At the same time, it takes a long time to charge (2–4 hours). Thus, for normal continuous operation you need to have at least 2-3 batteries and chargers. And for this price you can buy a corded angle grinder along with a generator.
• Very hot when charging. At the same time, additional fire protection measures increase the cost of the device.
• It is difficult to find spare parts for such a homemade or purchased device. It will not be possible to repair it at a service center.
• The fragility of the structure due to the material used to make the case (plastic) in purchased cordless angle grinder models. When purchasing or making metal models, the weight of the structures will be significant, and it will be very difficult to hold the device in one hand.
• Small variability of models. There are not many options for homemade models with such a drive, which makes it difficult for many users to choose the right functionality for themselves.

Unfortunately, having weighed all the advantages and disadvantages of a battery-powered angle grinder, most men do not consider it necessary to bother with its manufacture or spend money on its purchase. More often they opt for a networked angle grinder.

How to make a compact grinder for home use

Mechanical accessories for grinders are in great demand in households. The design of the grinder allows you to modify it with your own hands into many other tools. How to make a mini grinder is very simple Duration 7 17 Yuri Ostr 83,323 views. A selection of cool homemade videos for grinders, very interesting and useful devices and attachments. 11 ideas and homemade crafts made by yourself at home Duration 20 14 100 PUDOVO 530. Using ready-made drawings and diagrams, home craftsmen can assemble a tool based on a grinder for a washing machine engine.

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READ Why the brushes on the grinder wear out quickly?

Thanks to this, many craftsmen are increasingly choosing to independently create devices for. Where does sperm go from anal? mini grinder on a 14V battery with a gearbox from a screwdriver. This is a short video about the angle grinder and the board cooling chamber; the next video will tell you how to do it all. Porn videos of pop stars. How to make a mini grinder with your own hands from start to finish? If such a difficult task is set, then first you need to decide what will serve as an electric drive for the device. If the task is to make a miniature instrument with your own hands, then you must initially select an electric drive. The unit allows you to cut a metal profile, clean a weld or remove it. DIY mini grinder Zubik 55 Ilyakhov Maxim Efremovich dumpling wars operations of motor vibrations of the kingdom on the transplant reconstruction of Wiki virtue. DIY mini grinder drawings.

Production of portable battery power stations

We produce custom-made batteries with different characteristics, including creating portable battery power stations with specified capacity and output power. To assemble such batteries, we use batteries with the best characteristics - Li-ion and LiFePO4.

The versatility of such battery systems allows them to be used to solve various problems: during outdoor events, performing repair and construction work in non-electrified premises, on the street, in the forest, in the field, etc. Portable battery stations also help out in case of frequent interruptions in the operation of the power supply system.

Earlier, the VirtusTec blog published an article about the principle and diagrams of assembling a battery for an electric bicycle.

Ergonomics of the design of a cordless angle grinder

When choosing a tool, you should pay attention to the thickness of the protective casing and the possibility of adjusting its position. Obviously a housing with quick adjustment of positions (without the use of a wrench or screwdriver)

more convenient than one fixed with a clamp with a tightening screw and nut. Different protective covers for grinding and cutting should be included.

The design of the body and the quality of the materials from which the tool is made affect the ease of use, and therefore indirectly its safety. You can verify the ergonomics of the model only by holding the tool in your hands. And best of all, wearing mittens. Since, according to safety precautions, the “grinder” is used in mittens, it is important to feel the contact with the tool even through the protective layer. This means that corrugated rubberized coatings should be preferred to slippery plastic. For the same reason, it is better to take the tool with large and embossed buttons for starting the engine and locking the spindle.

Ideas for homemade equipment using a screwdriver

The entire range of screwdrivers is divided into corded and cordless models. Both types of products operate using electrical energy, which drives an electric motor. Only the electric motor itself in network devices is designed for an alternating voltage of 220 V, while in battery-powered equipment it is designed for a constant voltage of different values, for example, 12 V, 14.4 V. These design features, together with the technical characteristics, largely determine what homemade products can be assembled a screwdriver .

Electricity is one of the main types of energy used by humanity. Household appliances, industrial equipment, machine tools, and power tools operate using electricity. The work is performed by electric motors of different designs and power, which are powered by alternating or direct current. For this reason, the following technical devices can be assembled on the basis of a screwdriver or from its individual parts:

• garden grass and branches shredder;
• trimmer (electric scythe);
• camping manual generator;
• engraver (mini-drill, dremel, drill);
• wind generator;
• lawnmower;
• grinder;
• mini-machines: drilling, grinding, surface planer, lathe, sawing, sharpening;
• tool for tying reinforcement;
• gate opener drive;
• means of transportation for children: ATV, bicycle, scooter;
• a small ice auger, a hole drill, a construction or kitchen mixer.

The powerful impact model can also be converted into a concrete compactor using a special attachment.

The implementation of each option takes different times and requires additional (insignificant) costs, or is done without them at all.

Batteries without “memory effect”

Cordless angle grinders are equipped with the most energy-intensive batteries available at the moment - lithium-ion (Li-Ion). The latest models of lithium-ion batteries are also compact in size and light in weight.

In a number of modern models, full charging occurs within 30 minutes, and the presence of an additional battery allows you to avoid downtime. The conditions for recharging Li-Ion batteries do not affect their capacity and service life.

That is, the “memory effect” is completely eliminated, and they can be recharged regardless of the degree of discharge and not necessarily to the end. The self-discharge level does not exceed 5%.

Among the disadvantages is strong heating during charging, which requires certain protective measures that increase the cost. Lithium-ion batteries do not like any kind of shocks, falls, or freezing temperatures. Protective measures affect their price.

When choosing a cordless angle grinder, pay attention to the following facts. The wider the options for customizing operating parameters, the more economically you can use battery power. Multi-pin mounting reduces the likelihood of battery disconnection due to strong vibration. The brushless motor provides a long service life and high efficiency with minimal maintenance. Mechanisms for quick fixation of discs provide ease of changing equipment.

Advantages

A portable power tool is convenient because it can be used to work on structures that are inaccessible to conventional tools. Battery-powered grinders have recently appeared on the market. One of the key characteristics of a modern battery-powered angle grinder is its mobility, portability and convenience. The characteristics of this type of grinder allow you to use the tool at heights and in places where there is no source of electricity, even in rooms with high humidity levels. Portable angle grinders can be professional or made independently. A grinder from a car battery is usually made by many craftsmen.

So, the main “advantages” of cordless angle grinders are:

• Ease. Their weight is about 1–4 kg. The exact weight of the tool depends on its power. At the same time, the device can be held in one hand, which allows you to work in difficult conditions at heights, with suspended ceilings, with equipment, etc.
• Portability. Since the battery provides power to the device and its sufficient functionality, it does not need to be connected to the network. Due to the absence of the need to depend on a power source, such an angle grinder can easily be taken on the road for repairs, to the country house, or for the construction of remote facilities.
• Convenience. It is enough to pick up this device to appreciate its convenience. When working with a portable angle grinder, professionals immediately note the comfortable grip and minimal strain on the hands.
• Minimum noise level. The cordless angle grinder is quieter (in the range of 35–65 dB) compared to corded tools (from 65 dB), and its motor has a smooth release.
• A portable angle grinder is easier to hold in your hands. The reason is that the cordless type of angle grinder makes fewer revolutions than its stationary version, and therefore does not “jump” out of your hands. It is important that the device works uninterruptedly when biting the disc and processing complex parts of parts.

Why do you need an angle grinder from a car battery?

A grinder from a car battery is made by many “traditional craftsmen” independently. Its special feature is that a low voltage car battery is sufficient to charge this angle grinder. And this model of angle grinder costs much less than a purchased one. This tool is used to cut many materials, including PCB and glass. Sometimes it is equipped with a circular cutter, which adds additional functions to a circular saw.

You can learn about methods for making an angle grinder from a car battery in special technical magazines or from videos on the Internet. Currently, homemade angle grinders are sold second-hand. The price for such products is negotiable.

Ideas for homemade equipment using a screwdriver

What are the functionality of this or that model? They are determined by the amount of power, torque, and whether there is a shock function.

An interesting nuance is that with your own hands at home you can make a variety of equipment and tools from a screwdriver , which will then be suitable for use in everyday life. If you have set yourself such a task, then prepare not only a power tool, but also additional materials and parts. Without them, you will not be able to remake the screwdriver.

There is a reason for such work. In the sense that each homemade device will cost you less than its factory-made counterparts. And then your manual labor will be more effective. Automation will take over the entire load.

Choosing a portable angle grinder

The design features of any tool are the main parameters that characterize the product. When choosing a portable angle grinder, you need to pay attention to the following details:

1. Device power. The power determines whether the tool can cope with the task at hand. The optimal power value of the unit is in the range from 0.8 to 1.2 kW. High motor power of the product will lead to rapid battery discharge
2. Accumulator battery. The optimal battery option is lithium-ion filling. When purchasing products with lithium-ion batteries, you will have to overpay, but the service life of such UCBs is tens of times higher than that of nickel-cadmium ones. You can check the battery level on the battery or from the seller. The presence of two batteries in the kit will only be a big plus, but usually two nickel-cadmium batteries are included in the kit
3. Unit weight. The lighter the product, the easier it is to operate, especially if you have to work with it frequently
4. Number of revolutions. The lower the speed, the longer the battery will hold its charge, but the speed of work also depends on this parameter. If for grinding, then a product with a small number of revolutions is suitable, but for cutting concrete or metal, a low value of the parameter will negatively affect the speed of work.
5. Product brand. It depends on the manufacturer how long the unit will operate. The modern tool market is overflowing with cheap Chinese products that are not worth purchasing for everyday use. Indeed, in addition to poor workmanship, such units can break down at the most inopportune moment.
6. Price is an important parameter on which the decision to purchase an instrument depends. An angle grinder from the Einhell brand costs about 3 thousand rubles, while a similar model from the Bosch brand will cost 15 thousand rubles

Any item purchased must necessarily pay for itself, especially if it concerns tools for work. If the manufacturer gives a 1-year warranty for some models, and no more than three months for others, then you shouldn’t tempt fate, unless you need the product for one-time use. If you adhere to the above recommendations, you can purchase a tool of decent quality and at an objective cost.

Scope of use

Previously (a few years ago), in order to cut a steel pipe or angle, a person used a device such as a hacksaw, which is still popular. Its main disadvantage is the speed of obtaining the final result, as well as the need to apply physical force. The grinder allows you to cut any material much faster, without making any special physical effort.

A battery-powered grinder is used primarily where there is no 220 Volt alternating network. This can be in field conditions, when work is carried out at sites where there is no electricity or there is no extension cord, as well as in many household areas, when using a portable tool is much easier and more convenient.

A battery-powered angle grinder is used not only for cutting metal parts and structures, but it can also be used for cleaning work to remove dirt, paint, and rust from various parts and structures. The portable grinder is used in construction, plumbing, electrical, automotive workshops and even in industrial production. You can use it in your dacha, take it with you on the road, and also carry out car repairs.

It is important to know! The cordless angle grinder is used not only where there is no 220 V network, but also to facilitate the performance of necessary work.

People who are planning to purchase a network angle grinder are wondering whether it is worth buying it at all? After all, it is much more convenient to purchase a cordless angle grinder, which you can use anywhere and anytime. To answer this question, it is necessary to find out what advantages and disadvantages the portable version of an angle grinder has.

Benefits of the tool

Having found out the advantages of this product, you can immediately understand whether you need to buy such a device and why it is so popular. Cordless angle grinders have the following advantages:

• Portability. Due to the fact that the tool is equipped with a rechargeable battery, it can be used without the need to connect to a 220 V network. This is an important criterion on the basis of which many people purchase this type of tool.
• Light weight of the device. Despite the fact that the angle grinder is equipped with a battery, its weight is still usually less than its network relatives. If a network angle grinder weighs from 3 kg and above, then portable ones weigh from 1 to 4 kg.
• Low noise level. Many people know how an ordinary angle grinder buzzes when it is connected to a 220 V network, but a battery-powered angle grinder is much quieter and produces a sound in the range from 35 to 65 dB.
• Convenience when working with the product. Working with a lighter angle grinder without a wire coming from it is much more convenient and simpler than using heavy network analogues of an angle grinder.
• Low power. This fact is both a plus and a minus. The advantage is that the low-power tool does not “jump” out of your hands, but smoothly performs its immediate task.

It is important to know! The battery capacity affects the operating time of the tool. The smaller the battery capacity, the correspondingly less it will function without recharging.

Disadvantages of cordless angle grinders

A portable grinder also has disadvantages, the number of which is no less than the advantages. Disadvantages include:

• High cost of the device. Angle grinders with batteries are much more expensive than corded models. If you can buy a good network angle grinder for 6,000 rubles, then a good quality portable product will cost at least 10,000 rubles.
• Low device power. It is not advisable to use a cordless angle grinder for sawing thick metal, since the battery will quickly run out, which is directly related to the power of the unit.
• Short operating time of the tool. When working with a portable angle grinder, the battery charge usually lasts for 30-60 minutes. Most manufacturers, due to this significant drawback, supply their products with 2 batteries. Charging time for one battery ranges from 1 to 4 hours.
• Lack of spare parts. While finding various spare parts in service centers for a standard angle grinder is not difficult, repairing a portable version will be more difficult and more expensive. This is due to the low popularity of this type of tool.
• Small assortment. Despite the many advantages, manufacturers prefer proven and reliable options in the form of network tools. Buyers also tend to purchase network angle grinders, while portable ones are purchased in single quantities.

By comparing the advantages and disadvantages of a cordless angle grinder, we can draw the appropriate conclusions. Before purchasing portable angle grinders, you need to weigh the pros and cons based on your needs.

Key parameters when choosing a good battery-powered angle grinder

When choosing a battery-powered angle grinder, you need to pay attention to the following parameters:

• Power. The minimum power of the product should not be less than 0.6 kW and no more than 0.8 kW. If the power is less, the tool will be useless, and the high power of the electric motor will quickly drain the battery.
• Battery. It is better to overpay a little, but take a product with a modern battery, the capacity of which will be at least 3 Ah. It is better not to skimp on the battery, otherwise the tool will lie idle.
• The weight of the tool should not be more than 2.5 kg, as this will complicate the ease of working with it.
• Manufacturer. An important indicator, since today there are a lot of Chinese and low-quality instruments. It is not recommended to buy cheap Chinese angle grinders, as they will not last long, even before they have time to pay for themselves.

Each tool has a number of design features that the buyer should pay attention to first. After purchasing, be sure to use the tool, as during the warranty period it will be repaired free of charge or replaced with another one.

Wind generator

Old battery

A screwdriver is suitable for creating a simple model of a wind generator that will look like a weather vane. It is necessary to disassemble the tool and disconnect its contacts, dismantle the mechanical elements.

Insert the electric motor shaft into the chuck, clamping it securely. Attach a metal plate no more than 1 mm thick to the gearbox with bolts, which will subsequently serve as the basis for mounting the wind generator blades.

A plastic pipe cut lengthwise into 2 parts is ideal for making blades. Place a clamp on the shaft located between the gear and the chuck. The motor and cartridge are securely attached to the base made of plywood.

You can protect the wind generator from precipitation by placing the working elements of the device in an empty aluminum container.

After making the weather vane, attach the generator to its end and connect the wiring to the engine. To check the power of a wind generator, use a multimeter by rotating the blades.

Materials for work

In order to make a 12 volt , you will need:

• an old grinder of low power with a burnt-out engine;
• high-speed powerful 12-volt DC motor;
• screwdrivers, pliers;
• high speed gear lubricant;
• metal saw;
• vice;
• electric drill;
• soldering iron;
• Mechik.

Removing the old engine

Unscrew the four screws holding the gearbox to the body of the angle grinder.

We remove the gearbox along with the rotor of the burnt out engine.

Unscrew the screws securing the motor stator.

We remove the stator of the old electric motor, making room for the new one.

Lubricate the gearbox

Unscrew the screws securing the gearbox cover.

We fill the gear housing with special lubricant for high-speed gears.

We put the cover in place and screw it on.

Attaching the new motor to the gearbox

We clamp the rotor of the burnt out electric motor in a vice and use a hacksaw to saw off the gearbox from it.

Remove the engine cooling impeller.

In the center of the shaft coming out of the gearbox, we drill a hole into which the shaft of the new electric motor will subsequently be inserted.

On the side of the same shaft we drill a hole into which the clamping screw will be inserted.

We put the gearbox on the shaft of the new electric motor.

Sources:

https://eco-podarki.ru/post/akkumulyatornaya-bolgarka-svoimi-rukami.html https://antemion.ru/svoimi-rukami/bolgarka-12v-svoimi-rukami-mini-bolgarka-svoimi-rukami-poleznye -samodelki.html https://xnd1aspaq3c.xnp1ai/elektronika/bolgarka-na-12v-svoimi-rukami.html https://krrot.net/bolgarka-12-volt-svoimi-rukami/

Choosing an angle grinder based on characteristics

One of the indicators of the strength and resource of a battery is its capacity, measured in ampere-hours. The maximum value is 4 Ah. Such a tool is capable of generating a current of 4 A for an hour or a lower current, but for a longer time. It is worth comparing the power characteristics of a battery only in pairs: capacity

and tension. In addition, it makes sense to compare only models with batteries of the same type and design. If you multiply the capacity and voltage of the battery, then you can get a “talking” characteristic - capacity in units of power. Basically, the higher the power, the greater the possible cutting depth (blade diameter).

Therefore, it may be more convenient to focus on the diameter of the disk. By the way, an interesting point: when comparing angle grinder models, we see that battery-powered discs have a maximum diameter of 150 mm (usually up to 125 mm), and network-powered ones can also be found with 400 mm discs.

When speed matters

The higher the engine rpm at idle, the easier it is to work with hard materials. Undoubtedly, this is an important indicator for an angle grinder, especially when paired with the possibility of stepwise or automatic adjustment of the engine shaft speed, which is not available in all models.

For grinding work, the “speed” adjustment function is very important, since the optimal disc rotation speeds are different for different materials. It’s even better for grinding to choose a model with constant electronics, which automatically maintains the optimal speed and thereby ensures safe and high-quality work.

Making an angle grinder from a screwdriver

There are many options for how to remake an instrument. The easiest way is to use ready-made or homemade attachments or adapters. We fix one end of it in the cartridge. You need to attach a disk to the second end.

You can also convert a drill-driver into an angle grinder using a special type of attachment, which is equipped with a gearbox. To do this, we disassemble the power tool, dismantle its gearbox and install an attachment instead. And you have in your hands a tool that is very similar to an angle grinder.

Purchasing such a special attachment will not be cheap. And modification will take a lot of time. To make homemade nozzles, use studs of suitable diameter, nuts, and washers. They can even be used with cordless electric screwdrivers.

IMPORTANT! Of course, homemade ones are less effective compared to factory grinders. The difference in rotation speeds of the nozzles is large. Approximately 3000 rpm for a screwdriver versus 11000 rpm for an angle grinder. Low power coupled with low speed significantly limits the functionality of a DIY device.

READ Do-It-Yourself Ice Drill From a Chainsaw

DIY devices are recommended for use only in emergency cases. Since reversal is possible on the tool being remade, in order to avoid injury it is necessary to control the direction of rotation of the disk.

DIY mini grinder drawings

Recipe for liquid plastic anti-corrosion coating with your own hands Duration 11 38 Informal Mechanic 594,524 views. Every self-respecting master has at his disposal a type of tool such as an angle grinder or grinder . Milling table design, diagrams, do-it-yourself manufacturing technology Drilling machine how to make it yourself, components, drawings. What to do if you don’t have an angle grinder? Or how to make a mini grinder? Duration 4 19 Kryzer Channel 65,354 views. Beautiful ass lingerie. Positions in Jewish sex. Russian incest xxx. A device such as a small grinder is needed when an engraver deals with small parts, for example, in the production of souvenirs. Of course, it will be quite difficult to work with an angle grinder by hand, so everything needs to be marked out first; in the future we will no longer have problems with cutting, having such a stand for an angle grinder. A grinder is a tool that can also be used as a router.

Making a trimmer or lawn mower out of a screwdriver

During work, you will also need a pipe and an angle for it with a diameter of 40 mm.

The remodeling process begins with disassembling the electric screwdriver and removing the motor. Then you need to attach it to the plug. The mounting holes are pre-drilled in it. We secure the electric motor with two screws and solder the leads to the motor. We are installing an electric motor. In this case, you need to insert its wiring into the pipe.

IMPORTANT! Using a marker on the tube, we make a mark in the place where the future switch will be located. Next, you need to attach contact clamps to the ends of the outgoing wires so that you can quickly connect to the battery.

We make a battery holder from the adapter, connect the drive, connect the adapter to the handset. The blades need to be made into knives. Using a regular terminal clamp, we connect the nozzle to the motor shaft. We make a protective casing from a plastic bucket. We glue the part to the pipe. You still need to check how efficient the design is.

IMPORTANT! This device makes it possible to mow only the grass cover that has soft stems.

There are many different options for lawn mowers, which are based on networked models of drills and screwdrivers.

The first step is to create a base from metal, plywood and other materials. Wheels and a control handle will then be attached to it. The electric screwdriver is fixed with clamps or to a stand. Insert the cutting attachment into the chuck. To protect your feet from flying grass, you need to attach a cover to the back of the base.

Feeding is done through a button. But you can do it directly from the network. If you need a fairly functional lawn mower, then take a drill-driver with a power of 0.5 kW or more.

How to make a mini grinder or dremel with your own hands Techcult

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An alternative to lithium-ion batteries

The consumer knows two more types of batteries - nickel-cadmium (Ni-Cd) and nickel-metal hydride (NiMH).

The “advantages” of nickel-cadmium batteries include: resistance to low temperatures, low cost and a huge resource (up to 1500 discharge/charge cycles). But the disadvantages outweigh the advantages.

First of all, literally - Ni-Cd batteries are heavy. Secondly, they are charged only after complete discharge and always to the end, otherwise the “memory effect” kicks in and the service life decreases. (Yes, even a completely “dead” nickel-cadmium battery can be restored by service departments, but it costs money!) Finally, for reasons of high toxicity and problems with disposal, this type of battery is no longer produced in the European Union.

nickel-metal hydride (NiMH) that replaced nickel -cadmium are recyclable and are also about a third lighter and more compact. But they are also much inferior to lithium-ion ones in the number of cycles and recharge speed, and their self-discharge is still high.

Bench Drilling Machine

No less important in a home workshop is a drilling machine. An old screwdriver is also perfect for doing it yourself.

First you need to disassemble the tool, removing the engine, gearbox and cartridge from it. You can secure the head of the future machine using clamps made of textolite. To avoid distortions, it is recommended to process the clamps simultaneously. Restrictive posts are made of bushings with threads located in the inner part. The bushings must be the same size.

After this, you should start making 2 bosses from caprolon. A hole is drilled in their central part. The result is 2 eccentric bushings.

Install a clamp on the rod and adjust the backlash. An eccentric is used for this. To ensure the possibility of returning the drilling head to its initial position, the wooden lever is attached to a metal rod with a spring.

Electric current is supplied through the use of a transformer whose power does not exceed 150 W. Now all that remains is to install the capacitor with a diode bridge and the drilling head on the frame. The lathe is ready for use.

Generator

screwdriver models

Perfect for creating a homemade generator. By rotating its handle, the device will be able to supply electrical energy. Such a generator can be used during a camping trip or when there is a power outage in a country house. A homemade generator can be used to recharge batteries (6-12V).

A screwdriver with an operating voltage of 18 V or more is suitable for the job. Craftsmen advise following the following sequence of actions:

• Disassemble the screwdriver
  .
• Unsolder its electrical board.
• In place of the battery, install a diode bridge that is suitable in terms of technical parameters and characteristics.
• Make an easy-to-use handle by securing it in the screwdriver chuck.

Once these simple modifications are completed, all that remains is to assemble the body. The homemade generator is ready to work.

To avoid injury

An angle grinder is considered one of the most dangerous tools. Indeed, if a disk breaks during operation, its fragments fly away at high speed and can cause serious damage not only to the operator, but to people nearby.

Metal and other dust generated as a result of cutting or scraping materials is dangerous. In order to minimize possible harm, it is recommended to use personal protective equipment: goggles, a respirator, gloves and thick clothing that covers the entire body.

It is extremely important to use equipment that matches the maximum speed specified for a particular model, as well as the mounting diameter and thickness. Should

carefully secure the disk, as well as the workpiece, and while working, hold the tool with both hands.

A little about making a homemade grinder

There is no one method for making an angle grinder from a car battery. As a rule, electrocorundum is used to make disks, and a diode bridge is used for power supply. Many “homemade” people remove the motor from the screwdriver. It can be of different brands and power. The processing disk is made from a regular large disk using pliers.

Most often, such an angle grinder is produced from a 15V battery. As a rule, homemade angle grinders are equipped with a diamond wheel for processing (to improve the quality of work) or a disk cutter mechanism for the additional function of a circular saw. Sets of cutters are usually purchased in construction stores or ordered from online stores.

Features of the grinder operating on a battery

Always use a cutting guard when cutting. They work with a moderate feed corresponding to the material being processed, without exerting pressure and without distorting the equipment. The tool is always driven against the direction of rotation. Otherwise, there is a danger of uncontrolled exit from the slot.

When rough grinding, the tool is held at an angle of 30° to 40° to the workpiece and moved back and forth with moderate pressure. Make sure that the workpiece does not heat up too much and that there are no grooves left on the surface. Do not use cutting wheels for stripping.

When processing particularly hard materials, a sheaf of sparks rotating with a diamond cutting wheel clearly indicates overheating. In this case, interrupt the process and allow the disk to cool at idle.

A significant decrease in productivity and a rotating sheaf of sparks indicate dulling of the equipment.

A diamond cutting wheel can be sharpened with short cuts in an abrasive material such as sand-lime brick.

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