DIY drill chuck. Do-it-yourself collet chuck: components and manufacturing procedure. Special jaw: a modern replacement for any collet chuck

Among the advantages of a mini-drill, it is worth noting its compactness and low cost. In order to save money and not doubt the efficiency and reliability of electrical equipment, modern craftsmen have become adept at making power tools at home. With your own hands, today you can assemble a hand-held micro-electric drill, a high-frequency drill and more. How to make rotary instruments and components for them - read below.

A small electric drill is a must-have for anyone who makes electronic crafts or does delicate decorative work. This machine is ideal for performing small work on wood, plastic and metal, and drilling printed circuit boards.

You can assemble a mini-drill at home from a cartridge, a jar soap bubbles, a motor for rotating the cartridge, a battery.

The motor can be taken from a hair dryer or grinder. An electric motor from a VCR or a motor from an old cassette recorder are also suitable for making crafts.

To make an electric mini drill you need:

Connect the cartridge to the motor. The best way to do this is with cold welding. But you need to work quickly and carefully: the weld quickly hardens and becomes as strong as iron. If it fails, it will not be possible to redo the connection.
Place the cartridge in the jar. For better fixation, the cartridge must be treated with hot glue.
Make a hole in the second base for the switch. It’s better if the switch is small and keyboard-based.

To make a drill with your own hands, you should study the theory and watch a training video

The hand micro drill is ready! All that remains is to solder the wires from the motor and power to the switch, observing the polarity. To power the mini-drill, 9-12v batteries will be enough. Additionally, you can do reverse on a six-pin switch.

DIY collet chuck

A collet (or clamping) chuck for a mini-drill is an adapter device used to clamp drills, which is attached to the output shaft of the motor. The mini-chuck allows you to use drills with a diameter of up to 3 mm. The smallest homemade drill Can work with drills with a diameter of 0.7 mm.

The quality of the drill’s operation depends on the quality of the chuck and the attachment of the drill to the motor.

Therefore, the choice of clamp should be approached with all responsibility. And if a high-quality device cannot be found, it can be manufactured quite simply. In this case, you will not need to use lathe. To make the clamp you only need an M8 screw and a closed M8 nut.

Making a collet clamp for a mini drill:

We drill a hole with a diameter of 2 mm in the screw head;
We take a hacksaw and apply two axial cuts to the screw body;
In the closed nut, drill a hole with a diameter of 2 mm exactly in the middle;
Using a larger drill, expand the hole in the closed nut to 3.5 mm;
We make a cone out of the nut by connecting it to conventional drill and grinding with sandpaper.

The collet is ready! Now you can insert a drill of a suitable size into the bolt and screw on the nut. To make using the drill convenient, you can make a collet for each micro-drill. A special drill stand will also help you do quality work.

Do-it-yourself drill for small jobs

The drill has long ceased to be an exclusively professional dental instrument. Today, a drill with a flexible shaft is actively used to perform small decorative works, grinding, polishing, cutting various products.

You can make a rotary drill with your own hands, similar to a mini-drill.

At the same time, it should be taken into account that for quality work DIY projects will require a fairly powerful motor. So, an 18V motor from a screwdriver is perfect for powering drills. The easiest way would be to make an engraver from an old blender.

To make a drill you will need:

Disconnect the top part of the blender from the working part;
By using stationery knife remove the rubber cover on the button and use a screwdriver to unscrew the bolts located under it;
Using a screwdriver, from the side of the power cable, pry up the top cover of the case and carefully remove it;
Remove the circuit connected to the power cable from the blender body;
Remove the plastic part located above the rotator from the housing;
Remove the plastic tip from the electric motor shaft;
Measure the diameter of the shaft with a caliper (if you don’t have one, a ruler will also work for this purpose);
Clean the electric motor housing from oil and degrease its surface using an alcohol wipe;
Place a collet chuck of the appropriate size onto the shaft;
Replace the power button with a push mechanism that controls both turning the device on and off;
Assemble the blender.

Parts for making a drill can be found at a flea market

The hand drill is ready! Such a tool will be powered via a power cable with a plug. You can power the tool with batteries, but then the batteries will have to be changed or charged from time to time.

Do-it-yourself flexible shaft for a drill

If you need to transfer the rotation of the motor of an engraver, drill or bur to an attachment, then you will need a flexible shaft. This device consists of a wire enclosed in flexible armor, twisted in several layers, and

can significantly expand functionality rotary tool. You can assemble the flexible shaft yourself.

For this you will need:

Brass tube;
Two M4 threaded bushings;
Electrode shaft (diameter 5 mm) with M5 thread;
Adapter with internal thread M5 and external M8 by 0.75;
Mini quick-release chuck;
Clamp made from an M12 bolt drilled along the axis;
Protection for connection.

Assembling the flexible shaft. To do this, insert an electrode shaft into the brass tube and put M4 bushings on both sides of the tube. On one side of the tube we screw an adapter onto the sleeve, and onto it a mini-cartridge. WITH reverse side tubes we place a clamp with which we connect the shaft from the electrode to the flexible one. For convenience, you can sand down the heads of the screws on the clamp. We put a special brass protection on the clamp and secure it with fasteners. We isolate the connection. The flexible shaft is ready! For convenience, a clamp with a plastic handle can be placed on the cartridge side.

How to make a dynamo from an old printer motor

A dynamo is a device that transforms mechanical energy to electric. The operation of the dynamo is based on the principle of electromagnetic induction. That is electricity occurs in closed loop devices when the flux of the magnetic induction vector penetrating the circuit changes over time.

In other words, a dynamo is a simple generator direct current.

In everyday life, a dynamo can be used to charge audio and video equipment, a smartphone and other low-power gadgets (for example, fitness bracelets, tablets, a toy robot, etc.). In addition, the device is perfect for powering bicycle headlights, LED strips, hand-held flashlights and other devices powered by single-phase networks.

To assemble the homemade product you will need:

Motor (electric motor) from inkjet printer;
Belt and gear from the same device;
Handle with comfortable, non-slip grip;
Two small wooden bases;
Four 10,000 µF capacitors;
Diode;
Metal corners and fasteners;
Wires and solder.

Before making a dynamo, it is worth drawing it on paper

Making a dynamo is quite simple. To do this, you need to connect the capacitors in parallel, output the phase from the capacitors through a diode to the electric motor, and connect the zero of the capacitor through a jumper to the zero of the electric motor. Wires for connecting electrical appliances should be routed from the capacitor connected to the diode, observing the polarity. After this, you should place the entire structure on the base, fastening the electric motor to a second wooden plank so that the pulley sticks out of it. On the pulley side, place the gear with the handle and cover them with a belt.

DIY micromotor

Micromotors have found wide application in the construction of small flying objects (for example, models of microhelicopters and airplanes). The micromotor itself is a brushless DC micromotor.

You can make a micromotor from an electromagnet from an old vibration platform mobile phone.

For the rotor axis, you can use a drill with a diameter of 0.29 mm. To make a motor, you need to carefully wrap copper wire around the drill in two passes. The length of the winding should be several mm longer than the length of the electromagnet.

After this you need:

Apply to winding thin layer epoxy resin for gluing metals, and put an electromagnet on it;
Make two bushings from fluoroplastic and put them on the electromagnet on both sides;
Place the structure on the guides under the winding and wrap it with copper wire.

The micromotor is ready! All that remains is to install valves on it and connect it to power via a microchip with 5 inputs. Manufacturing Instructions interesting crafts from motors Roman Yursi offers on his channel.

DIY drill (video)

Household electric homemade products are a guarantee of the reliability and durability of power tools. In addition, this is a good opportunity to save money, because, often, the assembly of household tools requires a minimum of parts that can easily be found in everyday life or at the nearest store. Use the instructions presented in the article, assemble rotary household electrical appliances with your own hands, and enjoy their quality and affordability!

6watt.ru

How to make a collet chuck with your own hands?

The problem of consumption or lack of collet cartridges is especially familiar to jewelers. Specialists involved in the manufacture of printed circuit boards also face this problem.

Collet chucks can be created independently from available materials. However, there are some nuances that will be covered in detail in the article below.

Drill: adapters for drills of different diameters

It should immediately be noted that manufactured on a quick fix the collet will not be dismountable. That is, strictly speaking, removing one drill from it and inserting another will not work. For this reason, the manufacturing method is more suitable for those who need to create a large number of identical holes.

So, to create a homemade collet chuck we will need:

drill;
blank;
steel wire;
soldering flux;
hoop.

Initially, you should wind the steel wire around the blank in the form of a rigid spring (the half rings come as close to each other as possible). Next, the resulting structure must be thoroughly soldered.

It should be remembered that the diameter of the drill must match the diameter of the motor shaft, which will rotate the drill in the future.

Special jaw: a modern replacement for any collet chuck

Today, anyone can easily purchase a special cam for any type of drill. This can be done both in construction boutiques that offer equipment for sale, and on the Internet (at auctions such as Ebay or Amazon).

Such a cam will screw onto threaded connection rotating device shaft. The more tightly the cam is twisted, the more firmly it compresses the drill placed in it.

The price of such a device does not exceed sixty rubles. Purchasing a cam will forever save you from searching for suitable collets for using various drills.

Of course, it is better to purchase a cam made of high-carbon, durable steel. To tighten it, it is recommended to use a special wrench, which is included in the kit.

Assembling a mini drill

Mini drill - indispensable tool when working with printed circuit boards. The store has a wide range of these devices, but it’s easy to make them yourself, because everything you need for this can be found in any home. You will need:

Motor from a car radio (suitable for a hair dryer or children's toy);
Chuck or collet (drill clamp);
Power supply or battery;
Housing made of plastic or metal;
Hot melt adhesive or cold welding;
Drill;
Wires.

Assembling a mini drill + (Video)

First of all, you need to attach a cartridge or collet to the motor shaft. To do this, before buying a collet, measure the motor shaft, they come in two sizes - 1.5 and 2.3 mm, and buy the corresponding part. To avoid unnecessary vibration, secure the cartridge with hot glue. When using cold welding, work very quickly; it hardens almost instantly.

In the prepared case (for example, a plastic cylinder with a lid), cut off the bottom; here you will need to insert a motor. Make holes in the cover for the wires to exit. If this is a body from a lantern, then this perfect option with ready-made output points.

When you have placed the motor with the cartridge in the housing, check whether it sits tightly there, because during operation the slightest vibration will affect the quality. If necessary, apply glue or cold welding.

Solder the output wires to the power supply or battery, be sure to insulate the connection points. For ease of use, you can solder a switch button into one of the wires. On this side, the flashlight housing has another advantage - there is a ready-made hole for the button.

If the drill turns in the wrong direction, reverse the polarity of the wires. In case of strong vibration, check the tightness of the collet or chuck.

Mechanical mini drill + (Video)

If, in addition to electronics, you are also interested in fishing, then you probably have an old fishing rod with a spinning reel in your house. This will serve as the basis for a mechanical mini-drill.

First, remove the spool from the reel; it is secured with a screw on the shaft. Next, measure the length of the shaft and compare it with the length of the chuck hole. If the shaft is longer, cut it to fit the chuck hole. Place the chuck (or collet) onto the shaft using hot glue or cold welding.

For ease of work, all that remains is to redo the reel handle; it is quite long and will interfere with the speed of drilling. Saw off part of the long elbow of the handle, and attach the handle itself to the remaining segment. It is fastened quite easily with a riveted metal pin.

Your power drill is ready to go.

Another modification of the mini drill

Let's consider a version of creating a mini-drill with your own hands using an antiperspirant container as a body. To begin, select a motor that is suitable in size; a cassette from a tape recorder is the most the best option.

Cut a hole in the body for the button (use a switch from an old carrier as a button), cut off the bottom and make a suitable size outlet for a cartridge or collet in the lid.

Insert the motor into the housing with the chuck attached and wires to the cut bottom. If you match the dimensions of the motor to the dimensions of the body, you will not need glue. Put on and screw on the cap.

All that remains is to connect the button and the power supply. After all the circuits are closed, secure the button in the hole made.

DIY materials for a mini drill

There are many alternative options use your inventive abilities to create a mini drill with your own hands. The reasons for creating such tools can be:

DVD drive;
Motor from an old electric razor;
Electric toothbrush;
Glue gun handle with suitable motor;
Non-working screwdriver;
Motor washing machine;
Old hairdryer;
Plastic pipe.

All these seemingly unnecessary little things can serve well and become the main detail for creating the necessary tool.

Important! When working with a homemade mini drill, try to keep the drill perpendicular work surface. This will protect the drill from breakage and extend the life of your device.

How to make a chuck for a mini drill + (Video)

For homemade cartridge You will need a piece of metal or textolite pipe with a diameter suitable for the motor shaft. The length of the homemade bushing should be at least 2 times the length of the shaft and allow the drill to be securely secured.

The sleeve can be secured using screws or hot glue. As a rule, the motor shaft has a diameter of 2-5 mm, and drills for making circuit boards have a smaller diameter. This means that you need to fill the resulting space with filler and achieve alignment between the drill and the shaft.

As a filler, take rosin and pour it into the hole in the sleeve. Melt the rosin with a soldering iron and insert the drill. The rosin will harden and hold it securely.

To achieve perfect alignment, melt the rosin again and turn on the power. While the rosin has not hardened, try using tweezers to correct the position of the drill. If necessary, repeat the operation again.

instrument-blog.ru

How to make a mini drill for printed circuit boards with your own hands

The main purpose of a mini drill is to drill printed circuit boards, plastic, wood and some other non-hard materials. Compactness and efficiency have allowed this tool to become one of the main assistants for home handyman. Moreover, it is not at all necessary to buy a ready-made tool - a homemade mini drill copes with its duties no worse than its factory counterpart.

What can be made from

You can make a mini drill with your own hands by using motors from various improvised means.

Device manufacturing algorithm

The collection takes place in 3 stages. Let's take a closer look at each of them.

Making a mini cartridge

In order to assemble a mini drill chuck, you need to purchase a collet - a special mechanism designed for clamping cylindrical objects. Next, you need to connect the motor to the contacts of the future battery, which will power the device during operation.

Collet clamping

If your drill is spinning in the wrong direction, swap the wire contacts.

Finding a drill of the right size is not difficult. Insert the drill into the collet body and clamp tightly. Next, the finished nozzle must be installed on the motor body. The collet should fit tightly onto the motor shaft. Otherwise, you cannot avoid vibration. The chuck for a homemade mini drill is ready.

Attachments for a homemade mini drill can be purchased at any hardware store. Before purchasing, make sure they match the diameter of the collet.

Preparing the body

As a housing for the future device, you can use either an antiperspirant container or a regular hollow tube of a suitable size. If you use a simple hollow tube as a body, you need to cut off the bottom and insert a rubber or other plug in its place. If you are making a device from an antiperspirant body, you need to drill a hole in the lid for the drill to exit.

Connecting the elements

The motor must be installed on the reverse side. If your motor is not the right size, choose another tube. The fit must be very tight to avoid vibration as the shaft rotates. After this, it is enough to tighten the bolts on the collet and connect the resulting device to the electrical network.

One of the main disadvantages of assembling a drill with your own hands from a motor is the lower power compared to a standard device and the low strength of the drill.

If your work requires a cutter, you can easily make one yourself from an old lighter. To do this, remove the spinning drum from the lighter and place it on a bolt of a suitable size. Secure this with a nut and insert it into the collet hole. The cutter for surface treatment is ready!

If for some reason the cartridge does not fit the size of the cylindrical shaft of the motor or reel, it is necessary to degrease it thoroughly and then seat it on hot glue. This will help to obtain a stable and robust construction.

Such a mini drill with purchased attachments can perform minor repairs. technical means, drilling plastic, thin metal and making crafts.

The problem of consumption or lack of collet cartridges is especially familiar to jewelers. Specialists involved in the manufacture of printed circuit boards also face this problem.

Collet chucks can be created independently from available materials. However, there are some nuances that will be covered in detail in the article below.

It should be noted right away that a hastily made collet will not be dismountable. That is, strictly speaking, removing one drill from it and inserting another will not work. For this reason, the manufacturing method is more suitable for those who need to create a large number of identical holes.

So, to create a homemade collet chuck we will need:

drill;
blank;
steel wire;
soldering flux;
hoop.

It should be remembered that the diameter of the drill must match the diameter of the motor shaft, which will rotate the drill in the future.

Such a cam will be screwed onto the threaded connection of the shaft of the rotating device. The more tightly the cam is twisted, the more firmly it compresses the drill placed in it.

The price of such a device does not exceed sixty rubles. Purchasing a cam will forever save you from searching for suitable collets for using various drills.

Of course, it is better to purchase a cam made of high-carbon, durable steel. To tighten it, it is recommended to use a special wrench, which is included in the kit.

Collet chuck – special device used for clamping tools when performing turning, milling, drilling and other processing-related operations metal blanks based on the technical specifications (sequence of operations, processing technology, attached sketch of the product).

Types and principles of operation of chucks

Collet chucks are mainly used when processing cold-rolled rods or other metal products having an already treated surface.

Structurally, cartridges can be classified according to functionality:

with a fixed mechanism;
with retractable mechanism;
with retractable mechanism.

Each design has its own characteristics. The feeding type is made in the form of a steel bushing with 3 cuts forming petals that have a springing effect.

Drawing No. 1 of the main spindle collet

Collets type F - clamping the main spindle are used to secure the workpiece.

Drawing No. 2 of the counter-spindle collet

Collets type LN - counter spindle are produced elongated, size E depends on the standard size.

Drawing No. 3 collet type R

Type R – are pull-type collets.

Drawing No. 4 collet type T

Type T - clamping.

Drawing No. 5 collet BF

BF type feed collet - designed for bar feeding.

When installed on the machine, the feed collet is threaded onto the pipe with the help of which it is fed into work area. It is necessary to take into account the design feature - the size and shape of the collet, which must necessarily correspond to the profile of the bar being processed.

In preparation for processing, the rod moves through the petals, which due to design features hold the workpiece tightly. During processing, when feeding the workpiece, the adhesion force between the petals and the product increases due to rotation. Operating principle clamping elements is based on strengthening the adhesion of the petals to the workpiece during rotation of the working mechanism. Bushings with 3 petals are used for processing products up to 3 mm, four – up to 80 mm, six – over 80 mm. Typically, collets have an angle at the apex of the cone equal to 30º.

When processing thin rods, collets equipped with springs are used to increase the clamping force of the jaws. When increasing the diameter of the workpiece being processed, designs are used that are equipped with special inserts selected according to the dimensions of the product. Collet clamps are also used when machining with a drill, cutter or tap. The sleeve is fixed in the cartridge using a nut, and cutting tool directly in the collet. When fixed with a nut, the internal volume of the hole where the workpiece is installed is reduced, thereby increasing the force holding the rod stationary.

Cartridges of this design also have their drawbacks. First of all, the requirement that the shanks of the tool used must match the characteristics of the collets used. At enterprises, the most widely used collets are the ER type, which constitute the largest number in the total volume of tools used.

By doing complex work for the manufacture of products, various collets are used, indicating all sizes and technologies for performing work operations, but often you have to combine equipment or make the necessary collet chuck with the required characteristics with your own hands.

Video review of a lathe collet chuck

How to make your own collet chuck

When making various products with your own hands, situations arise when the available equipment does not allow you to perform necessary operations. It is required to produce a collet chuck that meets the requirements, with the product being manufactured according to the developed sketch.

All work must begin with the preparation of a sketch with the elaboration of all necessary details. The sketch of the chuck allows you to take into account all the features when making the necessary equipment and clamping mechanism with your own hands.

When making collets with your own hands, you need to consider several features:

the inner diameter of the collet is equal to or less minimum diameter details;
in a collet, an increase in the internal diameter is possible due to the expansion of the petals;
to increase the production of adjustable collets after setting and raising quality characteristics additional grinding of the conical and guide parts of the collet is necessary;
it must be taken into account that during long work The elasticity of the collet petals is lost, which can result in breakage.

A mini drill is an indispensable tool when working with printed circuit boards. The store has a wide range of these devices, but it’s easy to make them yourself, because everything you need for this can be found in any home. You will need:

Motor from a car radio (suitable for a hair dryer or children's toy);
Chuck or collet (drill clamp);
Power supply or battery;
Housing made of plastic or metal;
Hot melt adhesive or cold welding;
Drill;
Wires.

In the prepared case (for example, a plastic cylinder with a lid), cut off the bottom; here you will need to insert a motor. Make holes in the cover for the wires to exit. If this is a flashlight housing, then this is an ideal option with ready-made output points.

If the drill turns in the wrong direction, reverse the polarity of the wires. In case of strong vibration, check the tightness of the collet or chuck.

Mechanical mini drill + (Video)

If, in addition to electronics, you are also interested in fishing, then in your home you will probably find old fishing rod with a spinning reel. This will serve as the basis for a mechanical mini-drill.

Your power drill is ready to go.

Another modification of the mini drill

Let's consider a version of creating a mini-drill with your own hands using an antiperspirant container as a body. To begin, select a motor that is suitable in size; a cassette motor from a tape recorder is the best option.

Cut a hole in the body for the button (use a switch from an old carrier as a button), cut off the bottom and make a suitable size outlet for a cartridge or collet in the lid.

All that remains is to connect the button and the power supply. After all the circuits are closed, secure the button in the hole made.

DIY materials for a mini drill

There are many alternative options for using your inventive abilities to create a mini drill with your own hands. The reasons for creating such tools can be:

DVD drive;
Motor from an old electric razor;
Electric toothbrush;
Glue gun handle with suitable motor;
Non-working screwdriver;
Washing machine motor;
Old hairdryer;
Plastic pipe.

All these seemingly unnecessary little things can serve well and become the main part for creating the necessary tool.

Important! When working with a homemade mini drill, try to keep the drill perpendicular to the work surface. This will protect the drill from breakage and extend the life of your device.

How to make a chuck for a mini drill + (Video)

For a homemade cartridge, you will need a piece of metal or textolite pipe with a diameter suitable for the motor shaft. The length of the homemade bushing should be at least 2 times the length of the shaft and allow the drill to be securely secured.

As a filler, take rosin and pour it into the hole in the sleeve. Melt the rosin with a soldering iron and insert the drill. The rosin will harden and hold it securely.

Hello everyone, in this instruction we will look at a very simple and cheap option making a homemade drill. The most expensive thing here is perhaps the motor, but finding it shouldn’t be too difficult for you. As for the flexible shaft, it is also homemade. A flexible shaft is made from a regular bicycle cable and a piece of hose.

With this simple homemade product you can carry out various minor work. This includes cutting, grinding, drilling and much more. You can install a lot of purchased attachments in the clamping chuck, or make them yourself. So, let's start making.

Materials and tools for homemade work:

Materials:
- regular CD;
- ;
- a piece of PVC pipe;
- 12V motor ();
- gel pen ampoule (tube);
- metal rod;
- ;
- super glue;
- cable from a bicycle;
- electrical tape;
- dye;
- food plastic container;
- a piece of plywood;
- thin sheet metal;
- switch;
- a set of cutting discs;
- power supply and connector for it;
- rubber tube.

Tools:
- stationery knife;
- glue gun;
- screwdriver;
- drill.

Drill manufacturing process:

Step one. Flexible shaft handle assembly
Let's start with the handle of the flexible shaft, this is the most the hard part homemade, however, there is essentially nothing complicated here. The handle consists of two parts, let's start with the first. In the first part of the handle there is a metal axis on which the clamping chuck is installed. We take a plastic disk or other material and make 3 round timbers in diameter plastic pipes, these will be some kind of stubs.

Next, you will need a gel pen ampoule or other suitable tube. Its internal diameter should be such that the cable can be easily inserted into it. Drill holes in the plugs according to the diameter of the tube and assemble the structure. Everything is assembled with glue; the author uses superglue.

Now we will need a metal rod, install it inside the first half of the handle. We install a clamping chuck on one side, it is secured with a screw. And on the other side, use superglue to attach a piece of plastic tube. As a result, we get an axle that cannot jump forward and backward, that is, there are stops at both ends. Here it is advisable to place thrust washers and reduce the backlash.

The first part of the handle is ready, you can make the second. It is done in a similar way, only the plug is placed on one side only, and a piece of tube is glued into the plug. You can attach the cable! We pass it through the second part of the handle and apply hot glue to the tip of the cable. Quickly, before the glue has dried, insert the tip of the cable into the tube mounted on the metal axis. You can pinch the edge of the tube with pliers to keep everything in place securely.

Now glue both halves of the handle with superglue. From above, the author strengthens the joint with electrical tape. The pen is ready! If desired, you can paint it, as the author did.

Step two. Installing the engine
To install the engine you will need a piece of plywood, take the motor and attach it to the base using homemade clamps made of thin metal and self-tapping screws. To connect a cable to the motor shaft, attach a piece of plastic tube to the shaft.

The motor can be installed in the housing. The author uses a plastic container as a body. It's cheap, convenient and widely available. Before installing the motor, solder the wires to the contacts.

The motor is installed, you can connect the wiring. The electrical circuit consists of a switch, as well as a connector for connecting the power supply. We cut out places for them and install them. Solder the wires to the desired contacts.

Finally, you need to install another tube opposite the shaft. The author glues it with hot glue on both sides so that everything holds securely.

Step three. Final assembly homemade products
Our drill is almost ready, all that remains is to connect two nodes. Here we need a rubber tube, it is advisable that the rubber is not soft, this will reduce friction on the cable. Before assembly, it is highly recommended to lubricate the cable well with thick lubricant, so the efficiency of the device will be higher, and the hose will rub much slower.

We take the hose, cut off the required piece and put it on the cable. We put one side on the handle, there is a tube fitting for it. We also installed a tube fitting on the container. Finally, all you have to do is secure the cable to the motor shaft. Apply hot glue to the tip of the cable and quickly insert it into the tube installed on the shaft. Pinch the tip of the tube with pliers, so the connection will be much stronger.

Step four. Testing!
You can test your homemade product, connect the 12V power supply and try to turn on the machine. If everything works, we try to install the first nozzle. The author purchased a set of small cutting discs and demonstrates how the machine can easily cut popsicle sticks and even a board. This attachment creates maximum load on the device, and it can withstand it.