Mini drill is an indispensable tool for a radio amateur. With it, it is convenient to drill holes in printed circuit boardah when soldy electrical devices. Mini drill and model stores are useful when creating miniature techniques. Make a mini drill with your own hands is easy if there are necessary details.
Fen
Options for the mining of mini drill, created with their own hands, maybe several. The flight of your fantasy is limited only to the available details. The most convenient is the miniature drill, made by their own hands from the motor from consumer electronics. You can use drives from such subjects:
If in order to make a mini drill cartridge, you will need to visit the Aliexpress or other similar resource in search of the collet, everything is much easier with the case. For its manufacture, trash is suitable, which in most cases is disposed of. Consider several options:
Well, if you have a power supply with a power regulator - this will change the turnover of drills during operation. If you use a regular power supply, it is recommended to install the power button on the housing. You can use both a two-position switch and the breaker button - it all depends on your preferences. It is not bad to equip the housing by the connector suitable for the power supply.
The enthusiasts that are on "you" with electronics can use the USB port by which the mini drill can be powered by a computer or laptop.
Conventional drills may not be enough if you are not a radio amateur, but engaged in modeling or other type of creativity requiring the use of mini drills or bormers. Some nozzles are easy to do on their own:
Mini drill is an indispensable tool when working with printed circuit boards. In the store a wide range of these devices, but they are easy to do and yourself, because everything you need to do in any house. You will need:
First of all, it is necessary to fix the cartridge or collet on the shaft of the motor. For this, before buying a collet, measure the motor shaft, they are two sizes - 1.5 and 2.3 mm, and buy the appropriate item. To avoid unnecessary vibration, fasten the cartridge with a thermoclaim. When using cold welding work very quickly, it freezes almost instantly.
In the cooked case (for example, a plastic cylinder with a lid) cut the bottom, you will need to insert a motor. In the cover, make holes for the output of the wires. If it is the case from the lantern, then it perfect option With finished output points.
When you placed the motor with a carton in the case, check whether it sits tightly there, because when working the slightest vibration will be reflected in quality. If necessary, put on glue or cold welding.
Removed Wires Sleep to the power supply or battery, be sure to insulate the points of the connections. For convenience in operation in one of the wires, you can have a shutdown button. From this side, the housing from the lantern has another advantage - there is a ready-made hole for the button.
If the drill is spinning not to the other side, change the polarity of the wires. In case of severe vibration, check the fortress of the fastening of the collet or cartridge.
If you are in addition to the electronics, you also get fishing, then you will probably find in your house 
old fishing rod with a hoarse coil. She will serve as a basis for a mechanical mini-drill.
First, remove the spool from the coil, it is attached to the screw on the shaft. Next, measure the length of the shaft and compare it with the length of the opening of the cartridge. If the shaft is longer, do it in accordance with the size of the opening of the cartridge. Place the cartridge (or collet) on the shaft with a thermoclaus or cold welding.
For convenience, it remains to remake the coil handle, it is long enough and will interfere with the speed of drilling. Spile the part of the long knee of the handle, and directly fasten the handle to the remaining segment. It is fastened to be quite easily crushed with a metal pint.
Your mechanical drill is ready to work.
Consider the version of the creation of mini-drill with your own hands using a container from an antiperspirant as a body. To begin with, pick up a suitable motor, cassette from a tape recorder - the best option.
In the case, ride the hole for the button (use the switch from the old carry), cut the bottom and make a suitable output for the cartridge or collet in the lid.
Insert a motor with fixed cartridge to the cut-off DNU into the housing. If you selected the dimensions of the motor under the size of the case, the glue is not needed. Put and tighten the lid.
It remains to connect the button and power supply. After all the chains are closed, secure the button in the tailored hole.
There are many alternative options Applications of your inventive abilities to create mini drill do it yourself. The grounds for creating such tools can be: 
All these seemingly unnecessary little things can serve a good service and become the main detail to create the necessary tool.
Important! When working with a homemade mini drill, try to keep the drill perpendicular to the working surface. It will save the drill from the breakdown and will extend the life to your instrument.
For homemade cartridge, you will need a piece of metal or textolite pipe, on the diameter of the motor suitable to the shaft. The length of the self-made sleeve should be at least 2 times higher than the length of the shaft and allow to secure the drill to reliably.
Create the sleeve with screws or thermoclauses. As a rule, the motor shaft has a diameter of 2-5 mm, and the drill for the manufacture of boards have a smaller diameter. So, you need to fill the resulting space of the filler and achieve the alignment of drill and shaft.
As a filler, take the rosin and pour into the hole of the sleeve. Soldering iron melts rosin and insert the drill. Rosin hardens and will reliably hold it.
In order to achieve perfect centering, melt the rosin once again and turn on the power. While the rosin is not frozen, try using a tweezers to correct the position of the drill. If necessary, repeat the operation again.
For the production of drilling work on miniature blanks, engraving machines are usually used, the so-called "drees". The name comes on behalf of the most popular manufacturer. This is convenient hand toolBut its cost is usually high (especially for high-quality brand products).
The most common area of \u200b\u200bapplication is amateur modeling and production of printed circuit boards. As a rule, an industrial sample for such works is excessive: some of its capabilities are not in demand. Therefore, homemade masters often create a tool with their own hands.
Everything except the electric motor can be made independently. Although, the cost of the rest of the components is so scant that it can be limited to only the assembly of the power tool from the finished nodes.
Consider several tested options.
For the manufacture, you will need a 5V or 12V power motor, which can be removed from a broken children's toy, miniature fan, printer, tape recorder, or just buy on Aliexpress. If the drill is planned to be used not only to drill printed circuit boards, you can make a convenient polypropylene case. water pipe. We select diameter so that the motor tightly kept behind the walls. Ventilation, as a rule, runs along the shaft. You can use an empty tube from under construction sealant.
Face plugs are cut from any material: for example, PVC or acrylic. If the engine is quite powerful - the charger from the old mobile phone will not fit. We need a stock in at least 3a (for 5 volts). A good option - Old power supply from the computer (you can purchase a penny on the radios).
Tip: From a computer unit, you can make a universal source for a home workshop. Stable 5V power with load up to 20 amps, and 12V with a load of up to 8 amps. You can connect and "Dremel" and soldering iron.
The collet cartridge is purchased in the store: the department of components for engravers and "dremel". If there is a need to adjust the revolutions - you can make a scheme yourself, or purchase a finished block.
On the illustration of the Chinese regulator and power supply from the Internet router (12V, 1,2A).
With this homemade "dremel", you can not only drill miniature holes. By installing the appropriate nozzle, you will be able to work with a cutter, a shadold, or a cut off disk.
At first glance, it sounds absurd. But it will be about electric brush, inside which is quite reliable motor. It is enough to get to the steel shaft, which dresses a gearbox with rotating bristles, and the workpiece in your hands.
All the same collet cartridge dresses on the shaft, and batteries are installed instead of the batteries. Or you can adapt the suitable power supply unit.
Will drill the walls with such a device, but the holes in the printed circuit board are easily. In principle, any compact electrical appliance can be used, which is conveniently located the engine shaft. For example, the old electric shaver.
Go to the creation of minimal costs. We do not buy anything except the actual motor (although it is possible to find it for free in the old technique). Most compact electric motors are designed for a constant voltage of 12 volts. Under it and create a power supply.
Since no additional options are (revolve regulator, voltage stabilizer), the power supply is stabilized by constant load. A typical 12 volt micromotor works with a current not exceeding 2 amps. A simple calculation shows that the output power must be 24 W. We add 25% for losses when straightening, we obtain a 30 W transformer.
To get 12 volts under load, you need to remove 16 volts from the secondary winding. It is possible to make such a transformer in an hour, from any unnecessary power supply. Next is the rectifier bridge on any diodes: for example, 1N1007.
Our motor has nothing to do with the pulsation of the straightened voltage, so the output is connected to a 25 volt electrolytic capacitor with a capacity of about 1000 microf. It will smooth out the output current. Despite the simplicity, such a tandem works stable, with a disadvantage only: with increasing load, the voltage drops. That is, with a uniform rotation - the power supply gives 12 volts. And if you drill a "heavy" material - you need to follow the turnover without letting them go down. Otherwise, the shaft will just stop.
You can slightly complicate the power supply scheme, adding a suitable voltage stabilizer. For example, kr142en8b or L7812CV.
In this case, the voltage drops during the load on the drill will not be.
Given the miniature design, no clips are needed. Everyone can be fixed with glue or scotch.
The execution of the case depends only on your imagination. Most masters leave a "naked" utilitarian design: the supply voltage is safe, the dimensions of the motor allow you to hold it in the hands without the case.
If you want elementary aesthetics - the options are set: and they are all conditionally free.
Homemade tool does not just save funds. It can be made exactly for your tasks, unlike universal factory options.
For minor work, in particular, the manufacture of electric microcircuits is needed drill. Ordinary electric drill is not suitable. It is known that the mass of the desired and useful tool snap for a home workshop can be just created own hands. One of these curious homemakes is a mini drill.
Running in old supplies, it is quite simple to find motors from all kinds of household appliances or toys. All other elements need for activity can also be found among the old items.
Mini drill is widely used to perform different tasks.
To improve the result and not overheating the surface, it is desirable to apply an oil emulsion that reduces the strength of friction.
These are the main spheres where mini drill is practiced, but, in addition to them, it has gained extensive use in everyday life, for example, for processing (stripping) of two glued objects from plastic or glass. When preparing joints, both products are cleaned, after this surface is adjusted so that pieces closely adjoined each other.
Options for the execution of mini-drills made by their own hands can be somewhat. The impulse of your imagination is constrained exclusively by availability required components. The optimal is the portable drillMade with your own engines from the engine from electrical appliances. You can use engines from a variety of devices.
List some of them.
The mini-drill assembled on this basis will simply "fly".
Since we do not have to "invent the wheel", since the blender already has its own corps and an electric motor, we made a separate description of the manufacture of this device Drills at home.
So, we will need:
The creation scheme of our homemade is as follows:
It should be noted that the electric motor of the blender is not intended for long-term work, in connection with this it needs to be turned off from time to time so that it does not overheat.
However, this device is enough to implement simple work, For example, drill in holes or perform engraving parts.
The next important component of the device is a cartridge used to hold the drill. To make a clamping device, you need to purchase a collet cartridge in advance. It is a clamping device capable of keeping items cylindrical form. Signing the drill in the collet cartridge and holding it hard on the axis of the motor, you just need to connect the power supply or batteries to the motor.
A similar simplified version of mini-drill is already able to drill holes.
However, to keep the "naked" motor in the hands of uncomfortable, and the mini-drill looks unavoidable. To bring started to the finish, the shell and individual control components will be needed.
If in order to make a clamping device, it will be necessary to go to Aliexpress either another similar portal in the search for collet cartridge, and the casing is much easier. To create it, trash will be used, which is ejected by usually.
We will analyze several variations.
The back cover can be made from a container from under soap bubbles.
Everyone knows that drill in the farm is a very useful and universal tool. In the presence of a house, a drill can be hanging on the wall picture, fix the furniture, repair a number of necessary items. And what to do if there is no drill at home, and constantly ask for the neighbors somehow inconvenient?
You can buy it in the store, but the device is quite expensive. And you can collect a mini-drill with your own hands based on breed materials that are practically in every home. How to do it, we will tell in this material, presenting several more simple ways Assembling mini-drill do it yourself at home.
The first version of the assembly of this adaptation is based on using electric cartridgewhich can be purchased separately, or get from the light bulb. If you buy it, it costs it very inexpensive, but this cost will be justified.
Also for the assembly of mini-drill do it yourself from the cartridge you will need such things:
Work should be started with the preparation of the mini-drill case, which will serve bank from soap bubbles. This is done like this:
We proceed to work with the core:
Bonding method occurs through cold welding. If this method is not suitable, you can use hot glue. Remember that the more difficult your future mini drill, the more seriously the materials need for its assembly with their own hands.
During the planting on the welding or glue, it is necessary to work extremely gently so that everything will be as smooth as possible. To redo the work then it will not be released, consider this moment.
It is also necessary to consider the following:
When you prepared a housing and core, you can proceed to directly assembling drove with your own hands:
The finished mini drill is good because it can work both on batteries and electric power supply. We reviewed the assembly option. universal model.
Naturally, not having the skills of working with electricity, to collect such a drill with their own hands will be extremely difficult. Below, we suggest you consider the options for the assembly of simpler drills for small household needs.
One of the options of the simplest drill is homemade adaptation Based on the usual ballpoint handle.
For its manufacture you will need materials: ball handle machine; drill with the required diameter; Termoklay; Durable wand with handles at the end, with which it can be rotated.
Special attention is paid to choosing a handle for the manufacture of a future drill, and specifically, its body, because when working the main load will have to be on the body.
Handle Case Requirements Such:
The assembly process is as follows:
Electrical dental brushes are very convenient in use, but are not impractical in the way that it is impossible to change the bristle on them and after use, it is an expensive device, as well as a simple brush, you have to throw away.
But you can not do this using housing of electrical brush For the manufacture of drills with their own hands.
We take an old electric brush and spill on it all to the housing. Next, you need to connect the motor of the motor with a drill with a collet clamp to be purchased separately.
When buying a collet clamp (or cartridge), be sure to find out in advance which shaft in the motor in the brush in diameter. Motors differ from each other by the diameter of the raised shaft.
The collet clamp is inexpensive and can be purchased on a radio station or in a specialized online store. It includes cartridge and replaceable swelling Nozzles with different diameters that are inserted into the cartridge.
The most difficult thing in this case is to wear a chip clamp on the engagement engine. The cartridge is designed for the shaft from 2 mm, and the motor here is less. For this, each screw for fasteners must be pre-sharpened before giving it cone-shapedSo that you can adjust the minimum diameter of the cartridge mount under the diameter of the motor shaft.
Of course, a mini-drill can be collected not only based on brushes or old handlesbut also other devices, folk masters invent all new ways to their homemade assembly. However, the options discussed above will come even for those who have never come across such and engaged in assembling such devices for the first time in life.
