Dremel and engraver: accessories and accessories for the home workshop. Nozzles for the engraver. Surgical set of a home master

However, as a flexible shaft for an engraver, it is possible to use a drive shaft from a drill or a shaft for a car or motorcycle speedometer. We use this option for our homemade.

Due to the flexible shaft, the device has an advantage. During operation of the device, there is no excessive load on the hands. This is due to the fact that the shaft head is several times lighter than a power tool with an integrated drive.

Making a working nozzle

The body of the working nozzle, in the clamping mechanism of which the cutting tool will be fixed, can also be used from a drill or made independently. In our case, it is made of steel (I used the services of a turner - a neighbor in the garage). This option has its advantages - strength and accuracy, but also disadvantages - more weight. Due to small loads, it is possible to make a body of non-ferrous metal (for example, lighter aluminum alloys) or from a textolite bar, drilling a stepped hole for the bearings in its inner part and processing the outer contour of the case for your hand for a comfortable hold.

The threaded part of the body is intended for its connection with the used flexible shaft of the speedometer and corresponds to it in the thread. In our case, this is M18x1.5 10 mm long. The 70 mm long housing is bored for two ball bearings with a diameter of 22 x 8 mm.
As drive shaft collet clamp, which will be installed in the case, we use a double-sided hand tool with interchangeable collets, sometimes used for drilling holes in boards. It's time to mechanize this tool.

The outer diameter of the tube (handle) of the tool body is 8 mm, slightly increased during the knurling operation. The thread of the collets screwed into the tool is M6. We disassemble the tool and complete the assembly with two ball bearings.

To the width of the bearing, for its tight fit, we clean the corrugations from the edges of the tube. We press the bearing on one side. To fix the shaft when clamping cutting tool in the collet, we select a sleeve of suitable sizes, install it in the middle of the tube and fix it with a pin. We drill through the installed sleeve, in diameter, through hole 3.5 mm to install the stopper when clamping.

In the threaded hole of the tool tube, on one side (instead of a collet), we screw a piece copper tube 6 mm in diameter. To do this, at one end of it, we pre-cut the M6 ​​thread, and gently squeeze the other end until the square fits snugly at the output end of the flexible shaft of the speedometer. As a result, the total length of the drive shaft must match the length of the housing.

We measure the distance from the front end of the tube to the hole for the stopper. The assembled shaft is installed in the housing, until it stops in back wall. We mark the location of the locking hole on the body. We remove the drive shaft and drill a locking hole in the housing. After lubricating the bearings, we assemble the working nozzle. We check the alignment of the holes for the stopper. If the bearings turned out to be unprotected, we cut out and install, from the side of the collet, a protective washer made of plastic or felt.

After complete assembly of the body of the working nozzle, the open end of the drive shaft must coincide with the end of the body, and the crimped end of the copper tube should be flush with the threaded end.

Set the collet to the correct size.

We fix the flexible shaft on the body.

To secure the cutting tool

We use a punch as a stopper.

Tool
As tools that turn a compact engraving device into a multifunctional processing device, the following are used:
- drills, with the help of which the engraver turns into a mini-drill;
- cutters various designs, allowing processing of flat and shaped surfaces, as well as holes, grooves and recesses of various configurations;
- disk tools used to perform cutting operations on materials of small thickness;
- metal brushes, which are used to clean the treated surfaces from traces of corrosion and other contaminants;
- abrasive tools with working heads round, semicircular, oval and cylindrical shape used for grinding and polishing surfaces;
- tools with a working head of a conical shape for applying inscriptions and patterns to the surface of the workpiece;
- tools, the working head of which is made of felt, for polishing operations.

Sufficiently high-quality cutters for engraving machines can be made from broken drills if their working part is given the required configuration using a conventional grinder.

Attachment drive
Drive motor, which can be any motor powered by electric current voltage of 220 volts. It could be the engine washing machine or another not used by you household appliances.

Optimal for homemade engraver is the electric motor sewing machine, since there it is possible, within a fairly wide range, to regulate the speed of rotation of the shaft. Such engines, as a rule, are capable of developing a shaft rotation speed of up to 6 thousand rpm, which is quite enough for a household engraver. WITH soft materials it is better to work at slow speeds, since a high rotation speed will cause overheating of the tool or melting of the edges of the workpiece. At medium speed, it is recommended to work with metal. handle hard natural stone best at max rpm.

As a drive for the engraver, you can use a grinder with a “flying” gearbox, a drill or a screwdriver.
A temporary use case is also possible.

In terms of functionality, the use of an engraver is in many ways similar to the work grinder or drills. But there is one important distinguishing feature - it is used to process miniature parts.

Thanks to the use of this device in combination with a set of nozzles for the engraver, it is possible to perform such technological operations as grinding, milling, drilling, engraving, and so on.

The main features of the nozzles

The tool is designed for finishing a fairly large number of various materials. They can process ceramics, wood, glass and plastic products, solid steel.

To work with each of them, different nozzles with different design specifics are used.

Today, specialized companies offer a wide range of various nozzles necessary for carrying out operations with this tool. Their design contains two main components:

• the working part that performs the main function when interacting with the workpiece;
• a shank that fixes this element in the equipment chuck.

When choosing this device, they pay attention to certain points: the technological goal that needs to be achieved, and the material being processed, more precisely, its characteristics.

In addition, the equipment of some models of engravers is taken into account. collet chucks. For them, nozzles of only certain brands are suitable. To use such equipment, additionally acquire universal collets.

Among the most popular types of nozzles included in the professional kits are diamond burs. The basis of such equipment is made of tool steel.

At the same time, the working part coated with diamond powder. Thanks to the latter, the device is able to quite successfully cope with the processing of steel, glass, ceramics, natural and artificial stones.

The use of diamond burs is most expedient in the event of a need for fine-tuning a figured hole. They are usually sold immediately. sets of ten to twenty pieces, differing in shape and size.

The operation of burs must be carried out subject to certain rules to help prevent damage to the diamond coating. Typical models are equipped with a shank with a diameter of three millimeters.

Abrasive nozzles

Inexpensive options for this equipment include parts consisting of rubber and abrasive material. They are used to work with metal products and stainless steel items.

Sets of abrasive nozzles usually include five or six instruments with a different shape of the working part. The shank of such a tool is 2.3 mm.

Some companies are engaged in the production of abrasive nozzles different colors, thanks to which the user can quickly understand a particular category of instrument. For example, red abrasive powders are used to work with metal. They are made from aluminum oxide.

And here are the tools painted in green color, are intended for manipulations with glass, ceramics and a stone. They are coated with silicon carbide. To ensure the convenience of implementing various technological processes, working part of abrasive nozzles produced in several types of forms.

Abrasive devices allow you to perform the following operations:

1. Grinding the surface of the part.
2. Hole boring.
3. Engraving, etc.

They are used for processing necessary materials at home. At the same time, professional craftsmen usually do not use such tools, since they do not have sufficient functional potential.

Polishing and grinding attachments

As already noted, engravers are used to grind objects made from different materials.

Typically, for this kind of work, felt nozzle, which is pre-coated with a special polishing paste that acts as an abrasive component.

Polishing discs can be used for both rough and final processing. They are also often used when needed. surface finishing having an irregular shape.

To select the most suitable paste, you must first determine the material properties of the product to be sanded. For processing hard metal surface, for example, it is advisable to use pastes based on polishing powder and paraffin.

And for wood finishing, mixtures made from diamond dust with various fractions of grains. They allow you to very effectively get rid of scratches on glass and wooden surfaces and bring them to a perfectly smooth state. At the same time, the most recommended powders are those containing 5/3 and 3/2 diamond fractions.

Felt nozzles for grinding can be used both when processing wood, metal, glass, and for equipping drills in dental clinics or the simplest hand tools.

Work kits for professionals

Equipment of the professional series is represented by a separate category of nozzles.

Good craftsmen usually have at their disposal sets of tools that differ in design, materials of manufacture, and the shape of the working part.

In most cases, such kits consist of the following components:

• Various cutters for the engraver.
• Abrasive, diamond and felt nozzles.
• Drill, thanks to which the installation can be used as a drill.
• Cutting discs.
• Wire nozzles used to clean the surface from dirt and corrosion.

All these components of the kit allow the specialist to produce accurate and high quality workmanship even very small details. To do this, of course, quite often it is necessary to change the tools used to select the equipment option that is more suitable in a particular situation.

But the end result is worth it. The presence of a master of a large set is often evidence of his professionalism and experience.

Most popular brands

Today's markets offer a wide range of engraver attachments. Thanks to this, you can choose exactly those tools that will meet the financial possibilities and the needs necessary in a particular case.

Speaking of equipment professional level, among the most popular and sought after brands are " Dexter and Dremel". The products of these companies can be effectively used for processing metal, wood, glass and other materials.

Although these devices are expensive, they are quite reliable and durable in use. One nozzle of these brands can last ten times longer than its Chinese counterpart. In addition, these tools have high processing accuracy.

As a budget trademark costs pay attention to the company "Zubr, offering for relatively a small amount buy a set that includes up to 180 units of various nozzles with different shapes, sizes and design features. Such sets are equipped with tools for drilling holes, milling, diamond and abrasive nozzles, cutting discs.

As for equipment from Chinese manufacturers, there is a very ambiguous opinion about them. Although they cost several times less than high-quality devices, however, such tools cannot boast of their reliability.

Moreover, the Chinese kits contain significantly fewer components than the branded versions. However, professionals in their field, in principle, will be able to cope with such equipment. True, you will have to change tools often.

Making nozzles with your own hands

To carry out simple engraving work at home, necessary tools can be made from improvised materials.

For example, the simplest cutter is made from a corrugated wheel from a lighter or a dowel on which the working teeth are pre-cut.

To make a grinding nozzle, it will be enough to use wooden drum equipped with a shank with sandpaper glued to its side surface.

Most of the hand-made nozzles do a good job with the tasks assigned to them. At the same time, their costs are minimal.

Which equipment option to choose depends entirely on from the requirements and capabilities of the master, whether it is a Chinese-made tool, a home-made or a professional device.

An engraver, otherwise called a mini drill, dremel, straight grinder or drill, is a multifunctional tool. With its help, not only apply engraving, but also drill, grind and perform other operations for processing various materials, such as wood, metal, glass, stone. The device is widely used both in everyday life and in various industries, in jewelry, when creating advertising and souvenir products. All the variety of functionality of the equipment is due to the fact that there are various nozzles for the engraver.

Nozzles for frequently performed types of work are supplied with the tool. Milling cutters for more specific operations need to be purchased separately. In order to work correctly and productively with a dremel, while achieving high quality parts, you need to know existing varieties equipment, as well as for what work each type is used.

Exists a large number of varieties of equipment for working with a mini-drill. A wide range on the market allows you to choose nozzles for wood and many other materials that engraving equipment can work with. Also, individual masters make them on their own.

Structurally nozzles (burs) consist of two parts;

• tail, clamped in the tool chuck (diameter from 0.8 to 8 mm);
• worker, which processes materials.

Equipment is classified according to two main criteria:

• by the type of material from which they are made;
• by area of ​​use (purpose).

By type of material being processed

According to the material of the cutter for the engraver, there are the following types.

There are also combined burs, in which the shank is steel, and the working part is carbide. The scope of their application corresponds to the material of the head.

Carbide tooling is of high quality, durable and belongs to a number of expensive consumables for dremels. The shape of the tips determines the features of its application. With the help of such peak burs, it is good to process bone, plastic, to do tracing (indicate the contours of the picture). Diamond tips also differ in quality, even if the kit they are included in belongs to the category of cheap consumables.

On the market you can find a set of burrs, all elements of which marked with any color- it indicates the level of sharpening. Those marked in black are the most productive burs, while the sharpness of green or blue is already worse. Marked yellow fittings are optimal choice by doing finishing blanks.

By appointment

You can use an engraver with nozzles not only for engraving, but also for performing other work operations. The division of consumables used in the operation of straight grinders is presented in the table below.

Consumables from each group can be used when processing various materials. Wherein tooling for milling mainly used by professionals.

Dremels that have a flexible shaft are equipped with any kind of consumables that fit the diameter of the tool chuck.

An overview of the most popular attachments for woodworking and metalworking

Wood is one of the most frequently processed materials for engraving, along with glass, metal, and stone. Dremels are often used when carving wood, drilling miniature holes in it, drawing images on surfaces. this material, grinding, and creating small grooves or tongues. Therefore, popular varieties of nozzles for woodworking are:

• cutters for wood;
• drill;
• circles for cutting;
• polishing, grinding wheels and cylinders;
• spherical and conical burs;
• diamond and hard-alloy nozzles of various shapes;
• felt balls.

There are also specific types of wood cutters, but they are used very rarely even by specialists. Acquire Consumables to process wood different breeds using straight grinder, recommended set. Thus, everything that may be needed when performing work manipulations will be collected immediately in one case.

Overview of professional attachments for the engraver

A professional tool is a separate (high-quality and expensive) category of equipment that can withstand significant operational loads without negative consequences. Such devices are usually equipped with appropriate consumables.

Professionals do quality work the smallest details blanks. Therefore, they require such a wide variety of consumables when doing work.

Professionals who engrave various materials professionally recommend purchasing sets of nozzles from well-known brands, such as Dremel or Dexter. The significant cost of products of these companies is fully justified by the fact that their products are distinguished by reliability, high quality and durability. The use of burrs for wood, metal and other materials produced by these companies increases the accuracy of workpiece processing.

Often, specialists have several sets of equipment designed to process different materials and perform various operations. Also individual elements, included in their composition, have their own design features. Usually these sets include:

• milling cutters for metal, wood and other materials of various designs;
• drill;
• felt, diamond, as well as abrasive cutters;
• wire brushes for cleaning surfaces;
• engraving rods;
• cutting discs.

Also in the set comes across a straight edge cutter.

Edge cutter Topfix

Replacement equipment brands "Dremel" and "Dexter" can be used not only by workshop specialists, but also by home craftsmen who want to improve in the art of engraving.

According to professionals, one such tool can last as long as 10 low-quality nozzles of unknown production.

Some engravers recommend products firm "Zubr", lower quality than Dremel or Dexter, but cheaper. The set can include up to 180 consumables of popular varieties. But products from Zubr, in general, belong to the semi-professional and household categories.

Usually, a milling head for an engraver is included with the purchased tool. But with constant use, it wears out over time. Also, cutters may be needed for specific operations - then you need to buy new burs in order to continue working with a dremel.

The ideal option is to purchase products recommended by the engraver manufacturer. In such cases, the warranty from the firms for the operated device is preserved. But it happens that the original consumables cannot be obtained for some reason, or they will be very expensive with a small amount of upcoming work operations. Then you will need to purchase analogues or even use homemade products. In this case, the main selection rules are as follows.

1. You should focus on a suitable dremel cartridge shanks diameter: most often it is 2.4 or 3.2 mm.
2. It is necessary to purchase nozzles for metal and other materials for the type of work that is planned to be performed.
3. To engrave, you can use cheap kits, for example, Chinese or Russian production.
4. With constant, prolonged work with a mini-drill (especially with hard materials) it is recommended to purchase high-quality, professional sets, and for occasional engraving, household ones are enough.

Inexpensive products are suitable during training in various operations with a dremel. Over time, they should be abandoned in favor of better equipment.

Homemade nozzles for the engraver

You can buy attachments for the engraver not only factory-made, but also make them yourself. Workshop specialists and home craftsmen have come up with many options that are suitable for various operations with different materials.

To independently make polishing, grinding, milling, drilling consumables for dremel, as well as cutting devices, use the following materials and parts:

• plywood;
• sandpaper;
• leftovers abrasive wheels different thicknesses from an angle grinder (grinder);
• felt;
• felt;
• various fabrics and rubber;
• steel wire;
• a wheel from a cheap lighter;
• old burs and drills (they are sharpened);
• knives from an electric razor;
• hacksaw blades;
• metal caps, for example, from beer bottles;
• champagne corks;
• an ordinary dowel (teeth are made on its cap) and others.

The photos below show some of the finished practical application homemade devices to the engraving device of the milling type.

Additionally, with homemade use special (e.g. diamond) pastes. At the same time, specialists achieve the result of finishing processing of workpieces of different densities, comparable in quality to the use of factory analogs of burs.

Homemade engraver attachments are suitable for a variety of jobs. in domestic conditions. They will also save cash through the use of affordable, cheap materials and parts from improvised or broken (unnecessary, old) mechanisms.

A wide variety of different attachments allows you to perform a wide range of tasks with your Dremel. various works with different materials. It is better to select consumables that comply with the recommendations of equipment manufacturers. Professional kits- this is a guarantee of product quality, but they are expensive. To save money, you can make the necessary fixtures yourself. It should only be borne in mind that in this case the warranty service for the mini-drill is lost, and during operation the load on the tool may increase.