Manual mechanical drill with your own hands. How to make a mini drill with your own hands

A compact mini drill can be used for drilling printed circuit boards if you suddenly decide to assemble some kind of electrical appliance with your own hands. Besides hand tool can be used for normal household purposes if there is a need to drill a small hole in wooden board or plastic. Next, we will tell you how to make a mini drill from a motor with your own hands, providing photo instructions and visual video examples!

Method number 1 - Second life to an old tape recorder

As you understand, the first version of a home-made mini drill will be made from a time-forgotten CD recorder. All you need from the former hit of sales is a motor that will rotate the drill. Since the device is powered by 6 volts, you will additionally have to find an appropriate power supply or battery. In addition, you need to buy a collet yourself (sold in any radio store, the price is small) and find a suitable case for homemade.

So, in order to independently make a mini drill from a motor at home, you must follow these steps:

Solder two wires to the contacts of the device, as shown in the photo.

Install a drill bit of a suitable size in the collet.

Put the finished nozzle on the motor shaft, which will rotate. Please note that the collet hole must ideally fit the shaft diameter, which is usually 1.5 or 2.3 mm. Otherwise, it will be difficult for you to remove vibration when working with a homemade small drill.

Gently tighten all 4 bolts on the nozzle, then connect the wires to the power source and test the finished homemade product.

That's the whole technology of assembling the device with your own hands. As you can see, making a micro-drill out of a motor is not at all difficult, even for a novice electrician. The only drawback of such a device is the low strength of a thin drill. If you drill holes not at a right angle, it will immediately break.

Highly important point, which you should know about - to make the drill spin in the opposite direction, just swap the wires! interesting video instructions on how to make a simple drill were provided by Roman Ursu on his video blog page:

Method number 2 - Coil in motion!

Another original way make a mini drill at home - using a reel from a fishing rod. In this case, the assembly technology is quite simple, but the principle of operation itself will already be based not on electrical work motor, but on mechanical rotation, like a small drill.

To make a device with your own hands, you will need:

• spinning coil;
• cartridge from an old drill or collet;
• hot melt or cold welding;
• drill.

The assembly process is quite simple and consists of only two steps. First of all, you need to dismantle the spool with fishing line and cut off the remaining axis.
After that, the cartridge is glued to the remaining stem. You can do without a cartridge and install the collet with your own hands. When the glue hardens, you can check the finished mini drill. You can see all the assembly details in this video example:

How to make a micro drill from a coil yourself?

Method #3 - The Antiperspirant Idea

Well, the last version of a homemade mini drill, which we would like to provide to the readers of Sam Electric - using a cassette motor and an antiperspirant container. The advantage of this model is that it will be controlled by a separate on / off button and at the same time charged from a conventional power supply.

So, first you will need to prepare the following materials:

• a motor from a tape recorder;
• suitable collet with a drill;
• used antiperspirant;
• RCA socket for power connection;
• switch from an old carrier.

First of all, you need to make a mini drill according to the instructions provided at the very beginning: put the collet on the shaft and fasten it with bolts. Next, the motor housing is installed in an antiperspirant. As you can see from the photo, the dimensions are ideal for installing the part.

After that, in the top cover you need to drill a hole for the exit of the collet or the drill itself. At the same time, you need to make a hole in the bottom for the output of the power cord from the motor. Using a clerical knife, it is also necessary to cut a window for the switch, and then solder all the elements of the circuit.

The advantage of this version of a homemade mini drill is easy operation, small size and at the same time stylish. appearance. We recommend that you make this option at home, especially from improvised means at home you can find everything!

Review various ideas to create

Examples for inspiration

Above, we have provided 3 of the most popular options for a homemade micro drill for drilling printed circuit boards. We found a few more on the forums original ideas, which may inspire you to make your own, unique homemade.

So, to your attention a photo of the idea of ​​\u200b\u200bparts for creating a mini drill with your own hands at home:

Glue gun handle for easy operation. The motor is taken from an old Canon printer. Power is supplied from a conventional charger.

The second life of the hair dryer. According to the inventor, this homemade product is assembled from a hair dryer. Similarly, you can make a device from an old blender, leaving the handle intact.

Toothbrush for drilling circuit boards. You might not be surprised, but the next idea is to use a toothbrush as a mini drill. There are already batteries and a motor, you just need to cut it down upper part and install the collet nozzle.

A plastic bottle can also be successfully used as a housing for a homemade drill. These drawings will come in handy if you still decide to make such a device with your own hands.

Another option with a toggle switch for easy control. In this case, to drill holes on the seals, you will not need to constantly connect the power to the outlet. In addition, a comfortable handle will make the drilling process comfortable.

That's all I wanted to tell you about how to make a mini drill from a motor with your own hands. As you can see, there is nothing complicated, and there are an unlimited number of ideas for assembling. We hope that our photo examples and video instructions were useful and interesting for you. In addition, you can assemble a microdrill on your own using an old DVD drive, a screwdriver, an electric razor, and even a motor from a washing machine!

A simple drill from improvised means

How to make a micro drill from a coil yourself?

An overview of various creation ideas

1. Chuck drill
2. Preparatory work
3. Assembly
4. From a ballpoint pen
5. Assembly process
6. toothbrush device

It is inconvenient to form small holes for fastening decorative objects with a tool of standard sizes. The article describes how to make a mini-drill with your own hands, what you need to make the device.

Tools and materials

Would need:

• electric chuck,
• engine,
• plastic containers from soap bubbles,
• sharp knife,
• hot glue,
• insulating tape,
• soldering device,
• toggle switch.

Preparatory work

To make a case in the lid of a jar of soap bubbles with a heated soldering iron, it is necessary to make a hole with a diameter slightly larger than the diameter of the base of the drill. The bottom of the container must be removed. The core of the tool is constructed from the motor and cartridge. An engine of suitable power can be taken from old equipment. Before fastening the engine and cartridge, they are degreased with acetone. Fasten by cold welding or hot glue.

Assembly

The work is carried out in several stages. First, a cartridge with a motor is placed in plastic container from under soap bubbles.

The wires coming out of the electric cartridge must be placed in the housing cover.

The cartridge is fixed with hot glue, smearing the side voids. Wait for the binder to dry.

Attach the toggle switch to the cover with glue, connect the power supply wire to it along standard scheme. If necessary, use an ammeter. Insulation is done with electrical tape or hot melt adhesive. The lid is screwed to the tube, with its reverse side drill is fixed.

From a ballpoint pen

To make a drill fixture from a ballpoint pen, you do not need electrical elements No power tool skills required.

Required ball pen with an automatic mechanism, hot-melt adhesive, a stick with jumpers at the end, with the help of which the drill rotates, a drill of the required size. The main load falls on the case, so you need to choose samples from metal or dense plastic.

Assembly process

The ballpoint pen is completely disassembled. A drill is inserted into the lower part of the body, from which the rod usually comes out. The shank is fixed in a hole on a stick. In order for the entire working structure of the tool to become a single mechanism, the parts are fixed to the inner walls of the body with hot glue. The drilling process will be carried out by mechanical action on the stick that serves as the handle of the device.

toothbrush device

At the brush, you need to cut off all the details, leaving only the body. Then you need to connect the shaft of a miniature motor with a drill using a collet mount. The collet clamp is purchased separately, while taking into account the diameter of the engine shaft.

The chuck is suitable for a shaft with a diameter of 2 mm. The brush motor has a smaller diameter. You must first grind each fastener to a conical shape. This will allow you to adjust the diameter of the engine shaft to the size of the cartridge mount.

The drilling machine can be made from a blender, an electric manicure tool and other devices.

A mini-drill is sometimes equipped with a speed controller and other options.

The video shows how to make the equipment.

To work with small parts, for example, electrical microcircuits, a conventional electric drill is not suitable, therefore, the master engaged in this type of repair should have a mini hand drill in his arsenal, which is found on sale from factory manufacturers, and can also be made independently. This tool is indispensable for processing small parts, drilling holes and grinding hard-to-reach places.

Scope of mini drill

A minidrill can often be found in the kits of craftsmen who repair computer equipment, complex technical equipment, or electricians who install video surveillance systems and fire alarm. For carrying out such actions, this tool is indispensable, since a classic drill or screwdriver is not able to clamp such a thin drill in its chuck, moreover, the speed and force of these devices are several times higher than the required nominal value.

There are miniature drills that run on constant or alternating current, as well as from compressed air. Similar details can be found in the dental office, since the use of power tools in these conditions is unacceptable.

mini drillsare widely used for the following purposes:

1. Making holes in plastic molds and sheets, bases for microcircuits and other products. Of course, the tool will not be able to drill thick metal, but it is perfect for processing a sheet up to 1 millimeter;
2. Twisting and unscrewing screws with a small head and thread. Such fasteners are found mainly in office equipment, electrical wiring shields on circuit breakers, as well as in electric motors of small size and power;

Important! During this use, you need to reduce the speed of the drill to a minimum, otherwise you can grind off the splines of the bit or damage the socket of the screw head.

1. Small drills with special attachments can be used as an engraver or grinder, for which ball-shaped tips with a corrugated surface are installed in their chuck. In the process of rotation, the nozzle grinds the part or makes the desired pattern, to improve the result and in order not to overheat the surface, it is recommended to use an oil emulsion that reduces friction.

These areas in which mini drills are used are the main ones, but in addition to them, such tools are widely used in household life, for example, when processing two glued plastic or glass products. When preparing the joint, both products are ground, after which the surface is adjusted so that the pieces fit snugly against each other.

How to make a mini drill

It is not always financially possible to purchase the specified factory-made tool, but there is a need for it. In such situations, you can make a mini drill with your own hands, often without even purchasing special spare parts for this, since you can always find an old electric motor on the farm. low power and size.

Hand mini drillconsists of several main parts:

1. Engine powered by electric current. You can use a working power unit from the drive of the children's machine on the control panel, it has enough power and torque for high-quality drilling of small holes, besides, the small size allows you to install it in a compact handle;

1. A chuck for a mini drill that holds a thin drill or any other attachment. This part can be purchased in an online store or in any radio parts salon, its cost is not so high;

Important! It is worth noting that before buying, you need to measure the motor shaft so that its diameter is slightly smaller than the cartridge socket, so the drill fixed inside with a screw will not stagger and go deep into the part.

1. Source of power. Its rating must match the declared engine standard. Overrated power is allowed, but not more than 10% of normal, and the battery must also be small size, otherwise the whole device will be bulky and inconvenient to use. It is not recommended to use a power source whose power is less than that of the consumer, because due to low voltage the product will overheat and quickly fail.

All of the above items can be purchased separately or as a set, after taking measurements seats. On sale there are also various nozzles for drilling and other types of processing of any surfaces.

In order to make a mini drill with your own hands from the listed materials, you must follow specified algorithm actions:

1. Preparation and cleaning of motor contacts, decontamination of terminals. At this stage, the body of the unit is carefully examined for its integrity and the absence of damage to the coil;
2. The size of the future tool is determined. Based on this value, a handle is made in which the engine itself, the battery and the charger socket should fit. This handle can be made from wooden blank by cutting out the necessary cavity with a chisel or from a thin sheet metal by bending it along the profile of the tool;

1. A battery is connected to the engine. If there are terminals on its body, the connection is made by planting a nest of wires from the battery to the unit, but if there are no such places, then you can establish a wire contact by soldering them with tin. This connection must be treated with PVC tape or heat shrink tube that will create additional protection and prevent accidental touching of the two contacts. The positive cable must be disconnected with the power button so that when you press it, the unit starts up, and in a simple position, the engine does not receive power;
2. All elements are fixed on the handle. The handle can consist of two parts, which, when connected, form a strong body of the tool;
3. A cartridge is mounted on the protruding shaft of the engine, which is crimped with factory screws with a hex head.

After complete assembly the tool is ready to use for any purpose. As a power source, you can use not an autonomous battery, but a charger from a phone or player. To do this, you need to buy the unit itself and the docking socket, which most often comes with wires. The power supply converts electricity from 220 to 12-6 volts, moreover, the operating time of this tool is not limited by the battery capacity.

The body of a mini drill can be made from a cardboard cylinder or polypropylene pipe, in the cavity of which holes are made for the button and the charging plug. After final assembly for better insulation, you can paste over the product with a heat shrink tube of a suitable diameter.

Of course, the quality of a factory-made miniature drill is much higher, and the service life is longer, but the main advantage of a do-it-yourself electric drill is its cost, and with high-quality performance, the service life will be no less.

Thus, mini drills can be made independently from improvised materials and used in various areas of repair or electronics production, as well as for processing parts in hard-to-reach places.

Video

Mini drill - indispensable tool for the radio amateur. Useful for drilling holes in printed circuit boards when soldering electrical appliances. A mini drill will also come in handy for modelers when creating miniature equipment. Making a mini drill with your own hands is not difficult if you have the necessary details.

hair dryer

There can be several options for the execution of a do-it-yourself mini drill. The flight of your imagination is limited only by the available details. The most convenient is a miniature drill made by hand from a motor from consumer electronics. You can use drives from such items:

• Fen. The most preferred option: the motor power is sufficient for drilling any material. Depending on the engine model, its power reaches 1500 rpm.
• Player. A motor from an ancient non-working cassette recorder or player can be used. Engines from CD players will do. Such a motor is powered by a voltage of 6 volts, so you can make a portable version of a mini battery-powered drill out of it. The disadvantage is that the engine is not different big power. The microdrill created on its basis is suitable for drilling textolite boards.
• Radio controlled toy. Motor power depends on the manufacturer. consumer goods Chinese made usually equipped with low-power motors. Models famous brands, for example General Silicone, Maverick or WLToys are equipped with high-quality, reliable and, most importantly, powerful engines. A drill assembled on such a base will simply “fly”. Second important element construction - a chuck used to fix the drill. To make a chuck for a mini drill with your own hands, you must first buy a collet. It is a clamping mechanism capable of holding cylindrical objects firmly. Having fixed the drill in the collet and tightly clamping it on the motor shaft, all that remains is to connect the power supply or batteries to the engine. Such the simplest option minidrills can already drill holes. If you are too lazy to "bother" further and you will rarely use the tool, you can leave it like that. However, holding a “bare” motor in your hands is inconvenient, and the drill has an unpresentable appearance. To complete the job, you will need a body and some controls.

Case options for a mini drill

If, in order to make a mini drill chuck, you need to visit Aliexpress or another similar resource in search of a collet, everything is much simpler with a body. For its manufacture, trash is suitable, which in most cases is recycled. Let's consider several options:

• • Antiperspirant container. Some plastic containers Ideal size for a motor from a tape recorder or CD player. If the motor is slightly larger, you can insert it with a slight interference. In the lid of the antiperspirant container, it is necessary to cut a hole for the output of the cartridge. For greater convenience, you can install a connector for connecting the power supply at the bottom, and a power button on the side. This allows you to store the drill separately from the block.

• Electric cartridge. Less acceptable option: make a hole in such durable plastic will not work, so the power button will have to be fixed on the case with glue. You can use a soap bubble container as a back cover.
• The tube is the right size. Any will do material - metal, plastic or rubber. Not as aesthetically pleasing as the ones above. Keep in mind that when attaching the motor to the body, there should be no gaps, otherwise the drill may beat during operation. For additional fixation, you can use cold welding or superglue.

Power and controls

Well, if you have a power supply with a power supply regulator - this will allow you to change the speed of the drill during operation. If you are using a conventional power supply, for greater convenience, it is recommended to install a power button on the case. You can use both a two-position switch and a button-breaker - it all depends on your preference. It is also a good idea to equip the case with a connector suitable for the power supply.

Enthusiasts who are good with electronics can use the USB port, through which the mini drill can be powered from a computer or laptop.

Bits for mini drill

Ordinary drills may not be enough if you are not a radio amateur, but are engaged in modeling or other types of creativity that require the use of a mini drill or drill. Some nozzles are easy to make yourself:

• cutter. You can use a twisting drum from a lighter. Put it on suitable size bolt and secure with a nut.
• Grinding head. A small nail will do. Put a champagne cork on it or wrap a cylinder of duct tape around it. cut out sandpaper required grit rectangle and stick it around the circumference of the head cylinder. For processing different materials You will need several of these heads.
• A circular saw. For workmanship fit upper or Bottom part from a C-size battery - the so-called "barrel". The battery material is strong enough to make a circular disc. For marking, use a compass to mark a hole in the center. The helical teeth must be the same size to avoid runout during operation. To fix in the drill chuck, use a bolt, fixing the disk on it with nuts. As you can see, it is not difficult to make a mini drill with your own hands from a motor if you are enthusiastic. Many improvised materials that you most often throw away will do. The only thing you have to spend money on is a collet: it is extremely difficult to make it yourself.

A mini drill is a household tool used for drilling and grinding small parts. Wherever it is inconvenient to use either a screwdriver due to the diameter of the chuck or dimensions, it is better to use a specialized small tool.

Visually, this is a low-power engine with a shaft on which a spindle is mounted. The device without transmission, with the regulator of turns and the button of inclusion.

What can this tool do?

Often a mini drill is called a homemade drill, grinder, or Dremel brand. Dremel is the first company on the market construction tool, which has proven a high-quality mini drill as a universal household appliance.

Miniature drills are equipped with the following functional:

• drilling the smallest holes;
• milling;
• engraving, grinding and polishing with special nozzles;
• cutting, sharpening, cleaning, finishing of materials;
• drawing patterns.

Design

Inside any mini drill Sander, that is, a device for direct grinding. All of the above functions are performed thanks to the nozzles and cutting tools installed in the chuck.

A significant difference between the design and the drill standard size- frequency of rotation of the spindle sleeve. Popular models of hand-held mini drills keep speeds from 10 to 30 thousand per minute. Due to the high speed, there is no need to fasten the workpiece, because it does not tear them out of the hands. This feature Very handy for engraving and sanding.

For attaching the necessary equipment or cutting tool use the simplest cartridge with a collet mechanism.

Interestingly, the Hammer mini drill is equipped with a flexible shaft, which allows you to use nozzles in the most inaccessible places without unnecessary discomfort. It is very convenient to use a flexible shaft when the drill does not need to be held in hand. To do this, the appliance is suspended on a special stand. This approach will free your hands, reduce vibration and overall noise levels.

What is better to buy from budget models

Affordable and high quality device affordable price is a mini hammer md050b drill.

Characteristics:

• power 8 watts;
• collet diameter 1-3 mm;
• revolutions up to 15 thousand per minute;

Due to its light weight (only 400 grams), the mini drill is very convenient to use. The drill comes with a wide range of attachments and accessories.

in the same price category another remarkable model of household and industrial use- Engraver or mini drill "Whirlwind G 150".

Characteristics:

• power 150 watts;
• maximum speed of 30 thousand;
• weight 1.16 kg;

More powerful model with a similar collet chuck up to 3.2 mm. Very wide application repair work, polishing, cutting, engraving and more. There is a speed control. It is very convenient when working with materials of different densities.

DIY mini drill

There are several folk ways to create a mini drill from improvised engines and parts. For example, a drill from an old tape recorder is a convenient and simple mini device. Let's take a closer look at how to make such a mini drill with your own hands.

An element is necessary for operation - a motor from a tape recorder of past years. Operates on 6 volts, so you will need another battery for the design.

You need to order a collet chuck on any resource or grind it on lathe(which is more laborious). Also, the future drill needs to be assembled into something, so it would be great to prepare a simple case. Here's what they do next:

1. Solder two wires to the motor.
2. Insert a drill of the required diameter into the collet chuck.
3. Fix the chuck on the motor shaft. The shaft comes in two diameters of 1.5 and 2.3 millimeters.

The simplest model is ready. It remains to turn on the power, and the drill will rotate at a good speed.

A drill of small diameter (no more than 1-2 mm) is easy to break. Therefore, when drilling, try to maintain an angle of 90 degrees.

How to assemble the whole structure in an original and compact way?

A container of antiperspirant will do. The motor with two wires and a collet, prepared earlier, will fit perfectly into the container shown in the photo.

The bottom of the container is also drilled for a cord or wires. on the side makeshift corps cut out a square with a knife for the switch.

Having prepared all parts of the structure, they assemble the modified home-made mini drill already in the case.

There are some advantages from such a homemade product:

• minimum costs for parts of the structure;
• small body;
• convenient use and management;
• individual and stylish look.

very practical and simple model in manufacturing.

How to make a mini drill - video